/*
 * SPDX-FileCopyrightText: 2013 Copyright contributors to the cppTango project
 *
 * SPDX-License-Identifier: LGPL-3.0-or-later
 */

#include <tango/server/Attribute.h>

#include <tango/internal/server/attribute_utils.h>

#include <tango/client/Database.h>
#include <tango/common/defines.h>
#include <tango/server/AttrProperty.h>
#include <tango/server/DeviceClass.h>
#include <tango/server/EventSupplier.h>
#include <tango/server/FwdAttribute.h>
#include <tango/server/LogAdapter.h>
#include <tango/server/MultiClassAttribute.h>
#include <tango/server/WAttribute.h>

#include <algorithm>
#include <cmath>

#ifdef _TG_WINDOWS_
  #include <sys/types.h>
#endif /* _TG_WINDOWS_ */

namespace Tango
{

//+------------------------------------------------------------------------------------------------------------------
//
// method :
//        Attribute::get_properties
//
// description :
//        Init the Tango::AttributeConfig with all the attribute properties value
//
// argument :
//        out :
//            - conf : Structure in which attribute configuration must be stored
//
//------------------------------------------------------------------------------------------------------------------

void Attribute::get_properties(Tango::AttributeConfig &conf)
{
    //
    // Copy mandatory properties
    //

    conf.writable = writable;
    conf.data_format = data_format;
    conf.max_dim_x = max_x;
    conf.max_dim_y = max_y;
    conf.data_type = data_type;
    conf.name = Tango::string_dup(name.c_str());

    //
    // Copy optional properties
    //

    conf.label = Tango::string_dup(label.c_str());
    conf.description = Tango::string_dup(description.c_str());
    conf.unit = Tango::string_dup(unit.c_str());
    conf.standard_unit = Tango::string_dup(standard_unit.c_str());
    conf.display_unit = Tango::string_dup(display_unit.c_str());
    conf.format = Tango::string_dup(format.c_str());
    conf.writable_attr_name = Tango::string_dup(writable_attr_name.c_str());
    conf.min_alarm = Tango::string_dup(min_alarm_str.c_str());
    conf.max_alarm = Tango::string_dup(max_alarm_str.c_str());
    conf.min_value = Tango::string_dup(min_value_str.c_str());
    conf.max_value = Tango::string_dup(max_value_str.c_str());
}

void Attribute::get_properties(Tango::AttributeConfig_2 &conf)
{
    //
    // Copy mandatory properties
    //

    conf.writable = writable;
    conf.data_format = data_format;
    conf.max_dim_x = max_x;
    conf.max_dim_y = max_y;
    conf.data_type = data_type;
    conf.name = Tango::string_dup(name.c_str());

    //
    // Copy optional properties
    //

    conf.label = Tango::string_dup(label.c_str());
    conf.description = Tango::string_dup(description.c_str());
    conf.unit = Tango::string_dup(unit.c_str());
    conf.standard_unit = Tango::string_dup(standard_unit.c_str());
    conf.display_unit = Tango::string_dup(display_unit.c_str());
    conf.format = Tango::string_dup(format.c_str());
    conf.writable_attr_name = Tango::string_dup(writable_attr_name.c_str());
    conf.min_alarm = Tango::string_dup(min_alarm_str.c_str());
    conf.max_alarm = Tango::string_dup(max_alarm_str.c_str());
    conf.min_value = Tango::string_dup(min_value_str.c_str());
    conf.max_value = Tango::string_dup(max_value_str.c_str());

    conf.level = disp_level;
}

void Attribute::get_properties(Tango::AttributeConfig_3 &conf)
{
    //
    // Throw exception in case of Fwd attribute and the att configuration is not yet received
    //

    if(data_type == DATA_TYPE_UNKNOWN)
    {
        std::string desc("Attribute ");
        FwdAttribute *fwd = static_cast<FwdAttribute *>(this);
        desc = desc + get_name() + " is a forwarded attribute and its root device (";
        desc = desc + fwd->get_fwd_dev_name();
        desc = desc + ") is not yet available";
        TANGO_THROW_EXCEPTION(API_AttrConfig, desc);
    }

    //
    // Copy mandatory properties
    //

    conf.writable = writable;
    conf.data_format = data_format;
    conf.max_dim_x = max_x;
    conf.max_dim_y = max_y;
    conf.data_type = data_type;
    conf.name = Tango::string_dup(name.c_str());

    //
    // Copy optional properties
    //

    conf.label = Tango::string_dup(label.c_str());
    conf.description = Tango::string_dup(description.c_str());
    conf.unit = Tango::string_dup(unit.c_str());
    conf.standard_unit = Tango::string_dup(standard_unit.c_str());
    conf.display_unit = Tango::string_dup(display_unit.c_str());
    conf.format = Tango::string_dup(format.c_str());
    conf.writable_attr_name = Tango::string_dup(writable_attr_name.c_str());
    conf.min_value = Tango::string_dup(min_value_str.c_str());
    conf.max_value = Tango::string_dup(max_value_str.c_str());
    conf.level = disp_level;

    //
    // Copy alarm properties
    //

    conf.att_alarm.min_alarm = Tango::string_dup(min_alarm_str.c_str());
    conf.att_alarm.max_alarm = Tango::string_dup(max_alarm_str.c_str());
    conf.att_alarm.min_warning = Tango::string_dup(min_warning_str.c_str());
    conf.att_alarm.max_warning = Tango::string_dup(max_warning_str.c_str());
    if(delta_t == 0)
    {
        conf.att_alarm.delta_t = Tango::string_dup(AlrmValueNotSpec);
    }
    else
    {
        conf.att_alarm.delta_t = Tango::string_dup(delta_t_str.c_str());
    }
    conf.att_alarm.delta_val = Tango::string_dup(delta_val_str.c_str());

    //
    // Copy periodic event property
    //

    TangoSys_OMemStream str;
    str.precision(TANGO_FLOAT_PRECISION);

    if(event_period == INT_MAX)
    {
        str << DEFAULT_EVENT_PERIOD;
    }
    else
    {
        str << event_period;
    }

    MEM_STREAM_2_CORBA(conf.event_prop.per_event.period, str);

    //
    // Copy change event properties
    //

    if(fabs(rel_change[0]) == fabs(rel_change[1]))
    {
        if(rel_change[0] == INT_MAX)
        {
            conf.event_prop.ch_event.rel_change = Tango::string_dup(AlrmValueNotSpec);
        }
        else
        {
            str << fabs(rel_change[1]);
            MEM_STREAM_2_CORBA(conf.event_prop.ch_event.rel_change, str);
        }
    }
    else
    {
        if(rel_change[0] == INT_MAX)
        {
            str << AlrmValueNotSpec << ",";
        }
        else
        {
            str << fabs(rel_change[0]) << ",";
        }

        if(rel_change[1] == INT_MAX)
        {
            str << AlrmValueNotSpec;
        }
        else
        {
            str << fabs(rel_change[1]);
        }

        MEM_STREAM_2_CORBA(conf.event_prop.ch_event.rel_change, str);
    }

    if(fabs(abs_change[0]) == fabs(abs_change[1]))
    {
        if(abs_change[0] == INT_MAX)
        {
            conf.event_prop.ch_event.abs_change = Tango::string_dup(AlrmValueNotSpec);
        }
        else
        {
            str << fabs(abs_change[1]);
            MEM_STREAM_2_CORBA(conf.event_prop.ch_event.abs_change, str);
        }
    }
    else
    {
        if(abs_change[0] == INT_MAX)
        {
            str << AlrmValueNotSpec << ",";
        }
        else
        {
            str << fabs(abs_change[0]) << ",";
        }

        if(abs_change[1] == INT_MAX)
        {
            str << AlrmValueNotSpec;
        }
        else
        {
            str << fabs(abs_change[1]);
        }

        MEM_STREAM_2_CORBA(conf.event_prop.ch_event.abs_change, str);
    }

    //
    // Copy archive event properties
    //

    if(archive_period == INT_MAX)
    {
        conf.event_prop.arch_event.period = Tango::string_dup(AlrmValueNotSpec);
    }
    else
    {
        int per = (int) ((double) archive_period);
        str << per;
        MEM_STREAM_2_CORBA(conf.event_prop.arch_event.period, str);
    }

    if(fabs(archive_rel_change[0]) == fabs(archive_rel_change[1]))
    {
        if(archive_rel_change[0] == INT_MAX)
        {
            conf.event_prop.arch_event.rel_change = Tango::string_dup(AlrmValueNotSpec);
        }
        else
        {
            str << fabs(archive_rel_change[1]);
            MEM_STREAM_2_CORBA(conf.event_prop.arch_event.rel_change, str);
        }
    }
    else
    {
        if(archive_rel_change[0] == INT_MAX)
        {
            str << AlrmValueNotSpec << ",";
        }
        else
        {
            str << fabs(archive_rel_change[0]) << ",";
        }

        if(archive_rel_change[1] == INT_MAX)
        {
            str << AlrmValueNotSpec;
        }
        else
        {
            str << fabs(archive_rel_change[1]);
        }

        MEM_STREAM_2_CORBA(conf.event_prop.arch_event.rel_change, str);
    }

    if(fabs(archive_abs_change[0]) == fabs(archive_abs_change[1]))
    {
        if(archive_abs_change[0] == INT_MAX)
        {
            conf.event_prop.arch_event.abs_change = Tango::string_dup(AlrmValueNotSpec);
        }
        else
        {
            str << fabs(archive_abs_change[1]);
            MEM_STREAM_2_CORBA(conf.event_prop.arch_event.abs_change, str);
        }
    }
    else
    {
        if(archive_abs_change[0] == INT_MAX)
        {
            str << AlrmValueNotSpec << ",";
        }
        else
        {
            str << fabs(archive_abs_change[0]) << ",";
        }

        if(archive_abs_change[1] == INT_MAX)
        {
            str << AlrmValueNotSpec;
        }
        else
        {
            str << fabs(archive_abs_change[1]);
        }

        MEM_STREAM_2_CORBA(conf.event_prop.arch_event.abs_change, str);
    }
}

void Attribute::get_properties(Tango::AttributeConfig_5 &conf)
{
    //
    // Get config
    //

    Tango::AttributeConfig_3 conf3;
    get_properties(conf3);

    conf.name = conf3.name;
    conf.writable = conf3.writable;
    conf.data_format = conf3.data_format;
    conf.data_type = conf3.data_type;
    conf.max_dim_x = conf3.max_dim_x;
    conf.max_dim_y = conf3.max_dim_y;
    conf.description = conf3.description;
    conf.label = conf3.label;
    conf.unit = conf3.unit;
    conf.standard_unit = conf3.standard_unit;
    conf.display_unit = conf3.display_unit;
    conf.format = conf3.format;
    conf.min_value = conf3.min_value;
    conf.max_value = conf3.max_value;
    conf.writable_attr_name = conf3.writable_attr_name;
    conf.level = conf3.level;
    conf.att_alarm = conf3.att_alarm;
    conf.event_prop = conf3.event_prop;
    conf.extensions = conf3.extensions;
    conf.sys_extensions = conf3.sys_extensions;

    //
    // Add AttributeConfig_5 specific data
    //

    add_config_5_specific(conf);
}

//+------------------------------------------------------------------------------------------------------------------
//
// method :
//        Attribute::add_config_5_specific
//
// description :
//        Add into the received structure configuration release 5 specific data (root att, mem info,...)
//
// argument :
//         out :
//            - conf : The attribute config. structure
//
//--------------------------------------------------------------------------------------------------------------------
void Attribute::add_config_5_specific(AttributeConfig_5 &conf)
{
    //
    // Root attribute
    //

    if(is_fwd_att())
    {
        FwdAttribute *fwd = static_cast<FwdAttribute *>(this);
        std::string str(fwd->get_fwd_dev_name() + '/' + fwd->get_fwd_att_name());
        conf.root_attr_name = Tango::string_dup(str.c_str());
    }
    else
    {
        conf.root_attr_name = Tango::string_dup(AlrmValueNotSpec);
    }

    //
    // Memorized info
    //

    if(writable == WRITE || writable == READ_WRITE)
    {
        WAttribute *watt = static_cast<WAttribute *>(this);
        conf.memorized = watt->is_memorized();
        conf.mem_init = watt->is_memorized_init();
    }
    else
    {
        conf.memorized = false;
        conf.mem_init = false;
    }

    //
    // Enum labels
    //

    if(!enum_labels.empty())
    {
        conf.enum_labels.length(enum_labels.size());
        for(size_t loop = 0; loop < enum_labels.size(); loop++)
        {
            conf.enum_labels[loop] = Tango::string_dup(enum_labels[loop].c_str());
        }
    }
}

//+------------------------------------------------------------------------------------------------------------------
//
// method :
//        Attribute::set_properties
//
// description :
//        Set the attribute properties value for AttributeConfig
//
// argument :
//         in :
//            - conf : The new properties sent by client
//            - dev_name : The device name
//            - from_ds :
//        out :
//            - v_db : Vector of data used for database update/delete
//
//--------------------------------------------------------------------------------------------------------------------

void Attribute::set_properties(const Tango::AttributeConfig &conf,
                               const std::string &dev_name,
                               TANGO_UNUSED(bool from_ds),
                               std::vector<AttPropDb> &v_db)
{
    if(name_lower == "state" || name_lower == "status")
    {
        return;
    }

    //
    // Check if the caller try to change "hard coded" properties. Throw exception in case of
    //

    if(is_fwd_att())
    {
        set_hard_coded_properties(conf);
    }
    else
    {
        check_hard_coded_properties(conf);
    }

    //
    // Copy only a sub-set of the new properties
    // For each "string" property, an empty string means returns to its default value which could be the library default
    // value or the user defined default value
    //

    Tango::DeviceClass *dev_class = get_att_device_class(dev_name);

    Tango::MultiClassAttribute *mca = dev_class->get_class_attr();
    Tango::Attr &att = mca->get_attr(name);

    std::vector<AttrProperty> &def_user_prop = att.get_user_default_properties();
    std::vector<AttrProperty> &def_class_prop = att.get_class_properties();

    //
    // First the string properties
    //

    set_one_str_prop("description", conf.description, description, v_db, def_user_prop, def_class_prop, DescNotSpec);
    Tango::detail::delete_startup_exception(
        *this, "description", dev_name, check_startup_exceptions, startup_exceptions);

    set_one_str_prop("label", conf.label, label, v_db, def_user_prop, def_class_prop, name.c_str());
    Tango::detail::delete_startup_exception(*this, "label", dev_name, check_startup_exceptions, startup_exceptions);

    set_one_str_prop("unit", conf.unit, unit, v_db, def_user_prop, def_class_prop, UnitNotSpec);
    Tango::detail::delete_startup_exception(*this, "unit", dev_name, check_startup_exceptions, startup_exceptions);

    set_one_str_prop(
        "standard_unit", conf.standard_unit, standard_unit, v_db, def_user_prop, def_class_prop, StdUnitNotSpec);
    Tango::detail::delete_startup_exception(
        *this, "standard_unit", dev_name, check_startup_exceptions, startup_exceptions);

    set_one_str_prop(
        "display_unit", conf.display_unit, display_unit, v_db, def_user_prop, def_class_prop, DispUnitNotSpec);
    Tango::detail::delete_startup_exception(
        *this, "display_unit", dev_name, check_startup_exceptions, startup_exceptions);

    set_one_str_prop("format", conf.format, format, v_db, def_user_prop, def_class_prop, FormatNotSpec);
    Tango::detail::delete_startup_exception(*this, "format", dev_name, check_startup_exceptions, startup_exceptions);

    //
    // Min, max and most of the alarm related properties
    //

    set_one_alarm_prop(
        "min_value", conf.min_value, min_value_str, min_value, v_db, def_user_prop, def_class_prop, check_min_value);
    Tango::detail::delete_startup_exception(*this, "min_value", dev_name, check_startup_exceptions, startup_exceptions);

    set_one_alarm_prop(
        "max_value", conf.max_value, max_value_str, max_value, v_db, def_user_prop, def_class_prop, check_max_value);
    Tango::detail::delete_startup_exception(*this, "max_value", dev_name, check_startup_exceptions, startup_exceptions);

    bool alrm_set;
    set_one_alarm_prop(
        "min_alarm", conf.min_alarm, min_alarm_str, min_alarm, v_db, def_user_prop, def_class_prop, alrm_set);
    if(!alrm_set)
    {
        alarm_conf.reset(min_level);
    }
    else
    {
        alarm_conf.set(min_level);
    }
    Tango::detail::delete_startup_exception(*this, "min_alarm", dev_name, check_startup_exceptions, startup_exceptions);

    set_one_alarm_prop(
        "max_alarm", conf.max_alarm, max_alarm_str, max_alarm, v_db, def_user_prop, def_class_prop, alrm_set);
    if(!alrm_set)
    {
        alarm_conf.reset(max_level);
    }
    else
    {
        alarm_conf.set(max_level);
    }
    Tango::detail::delete_startup_exception(*this, "max_alarm", dev_name, check_startup_exceptions, startup_exceptions);
}

void Attribute::set_properties(const Tango::AttributeConfig_3 &conf,
                               const std::string &dev_name,
                               bool from_ds,
                               std::vector<AttPropDb> &v_db)
{
    //
    // First, do all the job done by old set_property(ies)
    //

    AttributeConfig tmp_conf;

    tmp_conf.name = conf.name;
    tmp_conf.data_type = conf.data_type;
    tmp_conf.data_format = conf.data_format;
    tmp_conf.writable = conf.writable;
    tmp_conf.writable_attr_name = conf.writable_attr_name;
    tmp_conf.max_dim_x = conf.max_dim_x;
    tmp_conf.max_dim_y = conf.max_dim_y;

    tmp_conf.description = conf.description;
    tmp_conf.label = conf.label;
    tmp_conf.unit = conf.unit;
    tmp_conf.standard_unit = conf.standard_unit;
    tmp_conf.display_unit = conf.display_unit;
    tmp_conf.format = conf.format;
    tmp_conf.min_value = conf.min_value;
    tmp_conf.max_value = conf.max_value;
    tmp_conf.min_alarm = conf.att_alarm.min_alarm;
    tmp_conf.max_alarm = conf.att_alarm.max_alarm;

    set_properties(tmp_conf, dev_name, from_ds, v_db);

    //
    // Add a check of the display level property because it is not checked by the check_hard_coded_properties() template
    // method called by the set_properties() method.
    // Display level is available only in AttributeConfig_3
    //

    if(is_fwd_att())
    {
        set_hard_coded_properties(conf);
    }
    else
    {
        check_hard_coded_properties(conf);
    }

    if(conf.level != get_disp_level())
    {
        throw_hard_coded_prop("level");
    }

    //
    // For Config 3 specific properties
    //

    bool state_or_status = false;
    std::vector<AttrProperty> fake_attr_prop;

    if(name_lower == "state" || name_lower == "status")
    {
        state_or_status = true;
    }

    //
    // Copy only a sub-set of the new properties
    // For each "string" property, an empty string means returns to its default value which could be the library default
    // value or the user defined default value
    //

    Tango::DeviceClass *dev_class = get_att_device_class(dev_name);
    Tango::Attr *att_ptr;

    if(!state_or_status)
    {
        Tango::MultiClassAttribute *mca = dev_class->get_class_attr();
        att_ptr = &(mca->get_attr(name));
    }

    std::vector<AttrProperty> &def_user_prop =
        !state_or_status ? att_ptr->get_user_default_properties() : fake_attr_prop;
    std::vector<AttrProperty> &def_class_prop = !state_or_status ? att_ptr->get_class_properties() : fake_attr_prop;

    if((!state_or_status) &&
       ((data_type != Tango::DEV_STRING) && (data_type != Tango::DEV_BOOLEAN) && (data_type != Tango::DEV_STATE)))
    {
        //
        // Alarm related properties
        //

        bool alrm_set;

        set_one_alarm_prop("min_warning",
                           conf.att_alarm.min_warning,
                           min_warning_str,
                           min_warning,
                           v_db,
                           def_user_prop,
                           def_class_prop,
                           alrm_set);
        if(!alrm_set)
        {
            alarm_conf.reset(min_warn);
        }
        else
        {
            alarm_conf.set(min_warn);
        }
        Tango::detail::delete_startup_exception(
            *this, "min_warning", dev_name, check_startup_exceptions, startup_exceptions);

        set_one_alarm_prop("max_warning",
                           conf.att_alarm.max_warning,
                           max_warning_str,
                           max_warning,
                           v_db,
                           def_user_prop,
                           def_class_prop,
                           alrm_set);
        if(!alrm_set)
        {
            alarm_conf.reset(max_warn);
        }
        else
        {
            alarm_conf.set(max_warn);
        }
        Tango::detail::delete_startup_exception(
            *this, "max_warning", dev_name, check_startup_exceptions, startup_exceptions);

        //
        // RDS related properties
        //

        set_rds_prop(conf.att_alarm, dev_name, v_db, def_user_prop, def_class_prop);

        //
        // Event related properties (except period)
        //

        set_one_event_prop(
            "rel_change", conf.event_prop.ch_event.rel_change, rel_change, v_db, def_user_prop, def_class_prop);
        Tango::detail::delete_startup_exception(
            *this, "rel_change", dev_name, check_startup_exceptions, startup_exceptions);

        set_one_event_prop(
            "abs_change", conf.event_prop.ch_event.abs_change, abs_change, v_db, def_user_prop, def_class_prop);
        Tango::detail::delete_startup_exception(
            *this, "rel_change", dev_name, check_startup_exceptions, startup_exceptions);

        set_one_event_prop("archive_rel_change",
                           conf.event_prop.arch_event.rel_change,
                           archive_rel_change,
                           v_db,
                           def_user_prop,
                           def_class_prop);
        Tango::detail::delete_startup_exception(
            *this, "archive_rel_change", dev_name, check_startup_exceptions, startup_exceptions);

        set_one_event_prop("archive_abs_change",
                           conf.event_prop.arch_event.abs_change,
                           archive_abs_change,
                           v_db,
                           def_user_prop,
                           def_class_prop);
        Tango::detail::delete_startup_exception(
            *this, "archive_abs_change", dev_name, check_startup_exceptions, startup_exceptions);
    }

    //
    // Event periods
    //

    set_one_event_period("event_period",
                         conf.event_prop.per_event.period,
                         event_period,
                         DEFAULT_EVENT_PERIOD,
                         v_db,
                         def_user_prop,
                         def_class_prop);
    Tango::detail::delete_startup_exception(
        *this, "event_period", dev_name, check_startup_exceptions, startup_exceptions);

    set_one_event_period("archive_period",
                         conf.event_prop.arch_event.period,
                         archive_period,
                         INT_MAX,
                         v_db,
                         def_user_prop,
                         def_class_prop);
    Tango::detail::delete_startup_exception(
        *this, "archive_period", dev_name, check_startup_exceptions, startup_exceptions);
}

void Attribute::set_properties(const Tango::AttributeConfig_5 &conf,
                               const std::string &dev_name,
                               bool from_ds,
                               std::vector<AttPropDb> &v_db)
{
    //
    // Check that the request is not to change some unmutable properties added in IDL 5
    //

    check_hard_coded(conf);

    //
    // Do all the job done by old set_property(ies)
    //

    AttributeConfig_3 tmp_conf;

    tmp_conf.name = conf.name;
    tmp_conf.data_type = conf.data_type;
    tmp_conf.data_format = conf.data_format;
    tmp_conf.writable = conf.writable;
    tmp_conf.writable_attr_name = conf.writable_attr_name;
    tmp_conf.max_dim_x = conf.max_dim_x;
    tmp_conf.max_dim_y = conf.max_dim_y;

    tmp_conf.description = conf.description;
    tmp_conf.label = conf.label;
    tmp_conf.unit = conf.unit;
    tmp_conf.standard_unit = conf.standard_unit;
    tmp_conf.display_unit = conf.display_unit;
    tmp_conf.format = conf.format;
    tmp_conf.min_value = conf.min_value;
    tmp_conf.max_value = conf.max_value;
    tmp_conf.level = conf.level;

    tmp_conf.att_alarm = conf.att_alarm;
    tmp_conf.event_prop = conf.event_prop;

    set_properties(tmp_conf, dev_name, from_ds, v_db);

    //
    // Now some IDL 5 specific properties
    //

    set_prop_5_specific(conf, dev_name, from_ds, v_db);
}

//+------------------------------------------------------------------------------------------------------------------
//
// method :
//        Attribute::set_one_str_prop
//
// description :
//        Analyse one of the string properties. String properties are description, label, unit, standard_unit,
//        display_unit and format
//
// argument :
//         in :
//            - prop_name : The property name
//            - conf_val : The new property value
//            - def_user_prop : The set of user defined default values
//            - def_class_prop : The set of class defined default values
//            - lib_def : The property library default value
//        out :
//            - att_conf : The new property in Attribute object
//            - v_db : Vector of data used for database update/delete
//
//--------------------------------------------------------------------------------------------------------------------

void Attribute::set_one_str_prop(const char *prop_name,
                                 const CORBA::String_member &conf_val,
                                 std::string &att_conf,
                                 std::vector<AttPropDb> &v_db,
                                 const std::vector<AttrProperty> &def_user_prop,
                                 const std::vector<AttrProperty> &def_class_prop,
                                 const char *lib_def)
{
    AttPropDb apd;
    apd.name = prop_name;

    bool user_defaults, class_defaults;
    std::string usr_def_val, class_def_val;

    user_defaults = Tango::detail::prop_in_list(prop_name, usr_def_val, def_user_prop);
    class_defaults = Tango::detail::prop_in_list(prop_name, class_def_val, def_class_prop);

    if(TG_strcasecmp(conf_val, AlrmValueNotSpec) == 0)
    {
        //
        // Return to lib default. If something defined as user default or class default, put entry in DB to overwrite
        // these defaults
        //

        std::string old_val = att_conf;
        bool fmt_changed = false;

        if(strcmp(prop_name, "format") == 0)
        {
            set_format_notspec();
            if(format != old_val)
            {
                fmt_changed = true;
            }
        }
        else
        {
            att_conf = lib_def;
        }

        if(old_val != att_conf || fmt_changed)
        {
            if(user_defaults || class_defaults)
            {
                apd.dba = UPD;
                apd.db_value = att_conf;
                v_db.push_back(apd);
            }
            else
            {
                apd.dba = DEL;
                v_db.push_back(apd);
            }
        }
    }
    else if(strlen(conf_val) == 0)
    {
        //
        // Return to user default or lib default. If something defined as class default, put entry in DB in order to
        // overwrite this default value.
        //

        std::string old_val = att_conf;
        bool fmt_changed = false;

        if(user_defaults)
        {
            att_conf = usr_def_val;
        }
        else
        {
            if(strcmp(prop_name, "format") == 0)
            {
                set_format_notspec();
                if(format != old_val)
                {
                    fmt_changed = true;
                }
            }
            else
            {
                att_conf = lib_def;
            }
        }

        if(old_val != att_conf || fmt_changed)
        {
            if(class_defaults)
            {
                apd.dba = UPD;
                apd.db_value = att_conf;
                v_db.push_back(apd);
            }
            else
            {
                apd.dba = DEL;
                v_db.push_back(apd);
            }
        }
    }
    else if(TG_strcasecmp(conf_val, NotANumber) == 0)
    {
        //
        // Return to class default or user default or lib default
        //

        std::string old_val = att_conf;
        bool fmt_changed = false;

        if(class_defaults)
        {
            att_conf = class_def_val;
        }
        else if(user_defaults)
        {
            att_conf = usr_def_val;
        }
        else
        {
            if(strcmp(prop_name, "format") == 0)
            {
                set_format_notspec();
                if(format != old_val)
                {
                    fmt_changed = true;
                }
            }
            else
            {
                att_conf = lib_def;
            }
        }

        if(old_val != att_conf || fmt_changed)
        {
            apd.dba = DEL;
            v_db.push_back(apd);
        }
    }
    else
    {
        //
        // Set property
        //

        std::string old_val = att_conf;
        att_conf = conf_val;

        if(user_defaults && att_conf == usr_def_val)
        {
            //
            // Property value is the same than the user default value
            //

            if(old_val != att_conf)
            {
                if(class_defaults)
                {
                    apd.dba = UPD;
                    apd.db_value = att_conf;
                    v_db.push_back(apd);
                }
                else
                {
                    apd.dba = DEL;
                    v_db.push_back(apd);
                }
            }
        }
        else if(class_defaults && att_conf == class_def_val)
        {
            //
            // Property value is the same than the class default value
            //

            if(old_val != att_conf)
            {
                apd.dba = DEL;
                v_db.push_back(apd);
            }
        }
        else if(!class_defaults && TG_strcasecmp(att_conf.c_str(), lib_def) == 0)
        {
            //
            // Property value is the same than the lib default value
            //

            if(old_val != att_conf)
            {
                apd.dba = DEL;
                v_db.push_back(apd);
            }
        }
        else if(!class_defaults && strcmp(prop_name, "label") == 0)
        {
            //
            // Property Label: Property value is the same than the lib default value
            //

            if(old_val != att_conf)
            {
                if(TG_strcasecmp(att_conf.c_str(), LabelNotSpec) == 0)
                {
                    apd.dba = DEL;
                    v_db.push_back(apd);
                }
                else
                {
                    apd.dba = UPD;
                    apd.db_value = att_conf;
                    v_db.push_back(apd);
                }
            }
        }
        else if(!class_defaults && strcmp(prop_name, "format") == 0)
        {
            //
            // Property Format: Property value is the same than the lib default value
            //

            if(old_val != att_conf)
            {
                if(is_format_notspec(conf_val))
                {
                    apd.dba = DEL;
                    v_db.push_back(apd);
                }
                else
                {
                    apd.dba = UPD;
                    apd.db_value = att_conf;
                    v_db.push_back(apd);
                }
            }
        }
        else
        {
            if(old_val != att_conf)
            {
                apd.dba = UPD;
                apd.db_value = att_conf;
                v_db.push_back(apd);
            }
        }
    }
}

//+--------------------------------------------------------------------------------------------------------------------
//
// method :
//        Attribute::set_one_alarm_prop()
//
// description :
//         Comment 1: If the user input value is equal to user default value do not store it in the database.
//
//         Comment 2: User default value (if defined) has to be converted to double before it is compared with the user
//        input to determine if to store the new value in the database. String comparison is not appropriate in case of
//        floating point numbers, e.g. "5.0" is numerically equal to "5.00" but the strings differ.
//
//         Comment 3: If user defaults are defined - at first place the input string is converted to double to determine
//         if it is a number. If so, the double value is cast to the type corresponding with the type of the attribute
//         and
//        further compared with the double representation of the user default value.
//         The purpose of casting is as follows. Lets take an example of an attribute of DevShort data type with user
//        default value for min_alarm set to 5. Now, if the user inputs "5.678" as a new value for min_alarm
//         it would normally be cast to DevShort and stored in the database as "5" (this is the standard behaviour if
//         the
//        user inputs a floating point value for a property of non-floating point type). But now the outcome "5" is
//        equal to the user default value 5 and should not be stored in the database. This is why there is the cast of
//        the user input value to the attribute data type before comparison with the user default value.
//
// Arguments:
//        in :
//            - prop_name : Property name
//            - conf_val : User value
//            - def_user_prop : User defined default prop.
//            - def_class_prop : Class defined default prop.
//        out :
//            - att_conf_str : New prop value as a string
//            - att_conf : New prop value converted as att data type
//            - v_db : Vector of info for db update/delete
//            - check_it : Flag set to true for alarm bits management
//
//---------------------------------------------------------------------------------------------------------------------

void Attribute::set_one_alarm_prop(const char *prop_name,
                                   const CORBA::String_member &conf_val,
                                   std::string &att_conf_str,
                                   Tango::Attr_CheckVal &att_conf,
                                   std::vector<AttPropDb> &v_db,
                                   const std::vector<AttrProperty> &def_user_prop,
                                   const std::vector<AttrProperty> &def_class_prop,
                                   bool &check_it)
{
    if((data_type == Tango::DEV_STRING || data_type == Tango::DEV_BOOLEAN || data_type == Tango::DEV_ENUM ||
        data_type == Tango::DEV_STATE) &&
       (TG_strcasecmp(conf_val, AlrmValueNotSpec) != 0 && strlen(conf_val) != 0 &&
        TG_strcasecmp(conf_val, NotANumber) != 0))
    {
        Tango::detail::throw_err_data_type(prop_name, d_name, name, "Attribute::set_one_alarm_prop()");
    }

    AttPropDb apd;
    apd.name = prop_name;

    bool user_defaults, class_defaults;
    std::string usr_def_val, class_def_val;

    user_defaults = Tango::detail::prop_in_list(prop_name, usr_def_val, def_user_prop);
    class_defaults = Tango::detail::prop_in_list(prop_name, class_def_val, def_class_prop);

    std::stringstream str;
    str.precision(TANGO_FLOAT_PRECISION);

    double alrm_usr_def_db;
    double alrm_class_def_db;

    bool store_in_db = false;
    bool del_from_db = false;
    bool avns = false;
    bool user_val = false;

    if(TG_strcasecmp(conf_val, AlrmValueNotSpec) == 0)
    {
        //
        // Return to lib default. If something defined as user default or class default, put entry in DB to overwrite
        // these defaults
        //

        std::string old_val = att_conf_str;
        att_conf_str = AlrmValueNotSpec;

        if(old_val != att_conf_str)
        {
            if(user_defaults || class_defaults)
            {
                store_in_db = true;
                avns = true;
            }
            else
            {
                del_from_db = true;
            }
        }
    }
    else if(strlen(conf_val) == 0)
    {
        //
        // Return to user default or lib default. If something defined as class default, put entry in DB in order to
        // overwrite this default value.
        //

        std::string old_val = att_conf_str;

        if(!user_defaults)
        {
            att_conf_str = AlrmValueNotSpec;
        }
        else
        {
            str.str("");
            str.clear();
            str << usr_def_val;
            str >> alrm_usr_def_db;
            att_conf_str = usr_def_val;
        }

        if(old_val != att_conf_str)
        {
            if(class_defaults)
            {
                store_in_db = true;
                if(user_defaults)
                {
                    user_val = true;
                }
                else
                {
                    avns = true;
                }
            }
            else
            {
                del_from_db = true;
            }
        }
    }
    else if(TG_strcasecmp(conf_val, NotANumber) == 0)
    {
        // set class default if defined, user default value if defined, otherwise use the library defaults

        std::string old_val = att_conf_str;

        if(!class_defaults)
        {
            if(!user_defaults)
            {
                att_conf_str = AlrmValueNotSpec;
            }
            else
            {
                str.str("");
                str.clear();
                str << usr_def_val;
                str >> alrm_usr_def_db;
                att_conf_str = usr_def_val;
            }
        }
        else
        {
            str.str("");
            str.clear();
            str << class_def_val;
            str >> alrm_class_def_db;
            att_conf_str = class_def_val;
        }

        if(old_val != att_conf_str)
        {
            del_from_db = true;
        }
    }
    else
    {
        //
        // Set property
        //

        std::string old_val = att_conf_str;
        att_conf_str = conf_val;

        bool equal_class_def = false;
        bool equal_user_def = false;

        if(old_val != att_conf_str)
        {
            //
            // Equal to user default?
            //

            if(user_defaults)
            {
                std::stringstream ss1;
                ss1 << usr_def_val;
                ss1 >> alrm_usr_def_db;

                double db;
                std::stringstream ss;
                ss.precision(TANGO_FLOAT_PRECISION);

                ss << conf_val;
                if(ss >> db && ss.eof())
                {
                    switch(data_type)
                    {
                    case Tango::DEV_SHORT:
                    case Tango::DEV_ENUM:
                        if((DevShort) db == alrm_usr_def_db)
                        {
                            equal_user_def = true;
                        }
                        break;

                    case Tango::DEV_LONG:
                        if((DevLong) db == alrm_usr_def_db)
                        {
                            equal_user_def = true;
                        }
                        break;

                    case Tango::DEV_LONG64:
                        if((DevLong64) db == alrm_usr_def_db)
                        {
                            equal_user_def = true;
                        }
                        break;

                    case Tango::DEV_DOUBLE:
                        if(db == alrm_usr_def_db)
                        {
                            equal_user_def = true;
                        }
                        break;

                    case Tango::DEV_FLOAT:
                        if(db == alrm_usr_def_db)
                        {
                            equal_user_def = true;
                        }
                        break;

                    case Tango::DEV_USHORT:
                        if((DevUShort) db == alrm_usr_def_db)
                        {
                            equal_user_def = true;
                        }
                        break;

                    case Tango::DEV_UCHAR:
                        if((DevUChar) db == alrm_usr_def_db)
                        {
                            equal_user_def = true;
                        }
                        break;

                    case Tango::DEV_ULONG:
                        if((DevULong) db == alrm_usr_def_db)
                        {
                            equal_user_def = true;
                        }
                        break;

                    case Tango::DEV_ULONG64:
                        if((DevULong64) db == alrm_usr_def_db)
                        {
                            equal_user_def = true;
                        }
                        break;

                    case Tango::DEV_ENCODED:
                        if((DevUChar) db == alrm_usr_def_db)
                        {
                            equal_user_def = true;
                        }
                        break;
                    }
                }
            }

            //
            // Equal to class default?
            //

            if(class_defaults)
            {
                std::stringstream ss1;
                ss1 << class_def_val;
                ss1 >> alrm_class_def_db;

                double db;
                std::stringstream ss;
                ss.precision(TANGO_FLOAT_PRECISION);

                ss << conf_val;
                if(ss >> db && ss.eof())
                {
                    switch(data_type)
                    {
                    case Tango::DEV_SHORT:
                    case Tango::DEV_ENUM:
                        if((DevShort) db == alrm_class_def_db)
                        {
                            equal_class_def = true;
                        }
                        break;

                    case Tango::DEV_LONG:
                        if((DevLong) db == alrm_class_def_db)
                        {
                            equal_class_def = true;
                        }
                        break;

                    case Tango::DEV_LONG64:
                        if((DevLong64) db == alrm_class_def_db)
                        {
                            equal_class_def = true;
                        }
                        break;

                    case Tango::DEV_DOUBLE:
                        if(db == alrm_class_def_db)
                        {
                            equal_class_def = true;
                        }
                        break;

                    case Tango::DEV_FLOAT:
                        if(db == alrm_class_def_db)
                        {
                            equal_class_def = true;
                        }
                        break;

                    case Tango::DEV_USHORT:
                        if((DevUShort) db == alrm_class_def_db)
                        {
                            equal_class_def = true;
                        }
                        break;

                    case Tango::DEV_UCHAR:
                        if((DevUChar) db == alrm_class_def_db)
                        {
                            equal_class_def = true;
                        }
                        break;

                    case Tango::DEV_ULONG:
                        if((DevULong) db == alrm_class_def_db)
                        {
                            equal_class_def = true;
                        }
                        break;

                    case Tango::DEV_ULONG64:
                        if((DevULong64) db == alrm_class_def_db)
                        {
                            equal_class_def = true;
                        }
                        break;

                    case Tango::DEV_ENCODED:
                        if((DevUChar) db == alrm_class_def_db)
                        {
                            equal_class_def = true;
                        }
                        break;
                    }
                }
            }

            if(user_defaults && equal_user_def)
            {
                if(class_defaults)
                {
                    store_in_db = true;
                    user_val = true;
                }
                else
                {
                    del_from_db = true;
                }
            }
            else if(class_defaults && equal_class_def)
            {
                del_from_db = true;
            }
            else
            {
                store_in_db = true;
            }
        }
    }

    //
    // Convert prop to attribute data type
    //

    if(att_conf_str == AlrmValueNotSpec)
    {
        check_it = false;
    }
    else
    {
        convert_prop_value(prop_name, att_conf_str, att_conf, d_name);
        check_it = true;

        //
        // If the attribute is READ_WRITE or WRITE and memorized, check that the new  min_value is not above the already
        // memorized value
        //

        Tango::AttrWriteType w_type = get_writable();
        if((w_type == Tango::READ_WRITE) || (w_type == Tango::WRITE))
        {
            WAttribute *w_att = static_cast<WAttribute *>(this);
            std::string mem_value;
            if(strcmp(prop_name, "min_value") == 0)
            {
                if((w_att->is_memorized()) && (w_att->mem_value_below_above(MIN, mem_value)))
                {
                    throw_min_max_value(d_name, mem_value, MIN);
                }
            }
            else if(strcmp(prop_name, "max_value") == 0)
            {
                if((w_att->is_memorized()) && (w_att->mem_value_below_above(MAX, mem_value)))
                {
                    throw_min_max_value(d_name, mem_value, MAX);
                }
            }
        }
    }

    //
    // For string representation: If there is a default (class or user) and if the user
    // entered a value equal to the default but with a different precision (3.2 and 3.20), take the
    // default one instead of the user one
    //

    if(class_defaults && att_conf_str != AlrmValueNotSpec)
    {
        double db;
        str.str("");
        str.clear();
        str << att_conf_str;
        if(str >> db && str.eof() && db == alrm_class_def_db)
        {
            att_conf_str = class_def_val;
        }
    }
    else if(user_defaults && att_conf_str != AlrmValueNotSpec)
    {
        double db;
        str.str("");
        str.clear();
        str << att_conf_str;
        if(str >> db && str.eof() && db == alrm_usr_def_db)
        {
            att_conf_str = usr_def_val;
        }
    }

    //
    // Get info to be stored in DB
    //

    if(store_in_db)
    {
        std::string tmp = conf_val.in();
        if(user_val)
        {
            tmp = usr_def_val.c_str();
        }
        else if(avns)
        {
            tmp = AlrmValueNotSpec;
        }
        else
        {
            double db;

            std::stringstream ss;
            ss.precision(TANGO_FLOAT_PRECISION);

            ss << conf_val;
            if(!(ss >> db && ss.eof()))
            {
                Tango::detail::throw_err_format(prop_name, d_name, name, "Attribute::set_one_alarm_prop()");
            }

            ss.str("");
            ss.clear();

            switch(data_type)
            {
            case Tango::DEV_SHORT:
            case Tango::DEV_ENUM:
                ss << (DevShort) db;
                break;

            case Tango::DEV_LONG:
                ss << (DevLong) db;
                break;

            case Tango::DEV_LONG64:
                ss << (DevLong64) db;
                break;

            case Tango::DEV_DOUBLE:
                break;

            case Tango::DEV_FLOAT:
                break;

            case Tango::DEV_USHORT:
                (db < 0.0) ? ss << (DevUShort) (-db) : ss << (DevUShort) db;
                break;

            case Tango::DEV_UCHAR:
                (db < 0.0) ? ss << (short) ((DevUChar) (-db)) : ss << (short) ((DevUChar) db);
                break;

            case Tango::DEV_ULONG:
                (db < 0.0) ? ss << (DevULong) (-db) : ss << (DevULong) db;
                break;

            case Tango::DEV_ULONG64:
                (db < 0.0) ? ss << (DevULong64) (-db) : ss << (DevULong64) db;
                break;
            }

            if(data_type != Tango::DEV_FLOAT && data_type != Tango::DEV_DOUBLE)
            {
                tmp = ss.str();
            }
        }

        apd.dba = UPD;
        apd.db_value = tmp;
        v_db.push_back(apd);
    }

    if(del_from_db)
    {
        apd.dba = DEL;
        v_db.push_back(apd);
    }
}

//+--------------------------------------------------------------------------------------------------------------------
//
// method :
//        Attribute::set_rds_prop()
//
// description :
//        Manage RDS related properties (delta_val and delta_t)
//
// Arguments:
//        in :
//            - att_alarm : New properties value
//            - dev_name : The device name
//            - def_user_prop : User defined default prop.
//            - def_class_prop : Class defined default prop.
//        out :
//            - v_db : Vector of info for db update/delete
//
//---------------------------------------------------------------------------------------------------------------------

void Attribute::set_rds_prop(const AttributeAlarm &att_alarm,
                             const std::string &dev_name,
                             std::vector<AttPropDb> &v_db,
                             const std::vector<AttrProperty> &def_user_prop,
                             const std::vector<AttrProperty> &def_class_prop)
{
    Tango::Attr_CheckVal old_delta_val = delta_val;
    long old_delta_t = delta_t;

    set_rds_prop_val(att_alarm, dev_name, def_user_prop, def_class_prop);

    bool delta_val_changed = false;
    switch(data_type)
    {
    case Tango::DEV_SHORT:
        if(old_delta_val.sh != delta_val.sh)
        {
            delta_val_changed = true;
        }
        break;

    case Tango::DEV_LONG:
        if(old_delta_val.lg != delta_val.lg)
        {
            delta_val_changed = true;
        }
        break;

    case Tango::DEV_LONG64:
        if(old_delta_val.lg64 != delta_val.lg64)
        {
            delta_val_changed = true;
        }
        break;

    case Tango::DEV_DOUBLE:
        if(old_delta_val.db != delta_val.db)
        {
            delta_val_changed = true;
        }
        break;

    case Tango::DEV_FLOAT:
        if(old_delta_val.fl != delta_val.fl)
        {
            delta_val_changed = true;
        }
        break;

    case Tango::DEV_USHORT:
        if(old_delta_val.ush != delta_val.ush)
        {
            delta_val_changed = true;
        }
        break;

    case Tango::DEV_UCHAR:
        if(old_delta_val.uch != delta_val.uch)
        {
            delta_val_changed = true;
        }
        break;

    case Tango::DEV_ULONG:
        if(old_delta_val.ulg != delta_val.ulg)
        {
            delta_val_changed = true;
        }
        break;

    case Tango::DEV_ULONG64:
        if(old_delta_val.ulg64 != delta_val.ulg64)
        {
            delta_val_changed = true;
        }
        break;

    case Tango::DEV_STATE:
        if(old_delta_val.d_sta != delta_val.d_sta)
        {
            delta_val_changed = true;
        }
        break;
    }

    if(old_delta_t != delta_t || delta_val_changed)
    {
        set_rds_prop_db(att_alarm, v_db, def_user_prop, def_class_prop);
    }
}

//+--------------------------------------------------------------------------------------------------------------------
//
// method :
//        Attribute::set_rds_prop_val()
//
// description :
//        Write into the attribute object the properties related to rds (delta_val and delta_t)
//
// Arguments:
//        in :
//            - att_alarm : New attribute properties
//            - dev_name : The device name
//            - def_user_prop : User defined default prop.
//            - def_class_prop : Class defined default prop.
//
//---------------------------------------------------------------------------------------------------------------------

void Attribute::set_rds_prop_val(const AttributeAlarm &att_alarm,
                                 const std::string &dev_name,
                                 const std::vector<AttrProperty> &def_user_prop,
                                 const std::vector<AttrProperty> &def_class_prop)
{
    std::stringstream str;
    str.precision(TANGO_FLOAT_PRECISION);

    bool delta_val_defined = false;
    std::string delta_val_usr_def;
    double delta_val_usr_def_db;
    std::string delta_val_class_def;
    double delta_val_class_def_db;
    bool usr_defaults = false;
    bool class_defaults = false;

    if(TG_strcasecmp(att_alarm.delta_val, AlrmValueNotSpec) == 0)
    {
        // force library defaults (even if user defaults defined)
        delta_val_str = AlrmValueNotSpec;
    }
    else if(TG_strcasecmp(att_alarm.delta_val, NotANumber) == 0)
    {
        // set class default if defined, user default value if defined, otherwise use the library defaults

        class_defaults = Tango::detail::prop_in_list("delta_val", delta_val_class_def, def_class_prop);
        if(!class_defaults)
        {
            usr_defaults = Tango::detail::prop_in_list("delta_val", delta_val_usr_def, def_user_prop);
            if(!usr_defaults)
            {
                delta_val_str = AlrmValueNotSpec;
            }
            else
            {
                str.str("");
                str.clear();
                str << delta_val_usr_def;
                str >> delta_val_usr_def_db;
                delta_val_str = delta_val_usr_def;
            }
        }
        else
        {
            str.str("");
            str.clear();
            str << delta_val_class_def;
            str >> delta_val_class_def_db;
            delta_val_str = delta_val_class_def;
        }
    }
    else if(strlen(att_alarm.delta_val) == 0)
    {
        // set user default value if defined, otherwise use the library defaults

        usr_defaults = Tango::detail::prop_in_list("delta_val", delta_val_usr_def, def_user_prop);
        if(!usr_defaults)
        {
            delta_val_str = AlrmValueNotSpec;
        }
        else
        {
            str.str("");
            str.clear();
            str << delta_val_usr_def;
            str >> delta_val_usr_def_db;
            delta_val_str = delta_val_usr_def;
        }
    }
    else
    {
        // set property
        delta_val_str = att_alarm.delta_val;
    }

    if(delta_val_str != AlrmValueNotSpec)
    {
        if((data_type != Tango::DEV_STRING) && (data_type != Tango::DEV_BOOLEAN) && (data_type != Tango::DEV_STATE))
        {
            convert_prop_value("delta_val", delta_val_str, delta_val, d_name);
            delta_val_defined = true;
        }
        else
        {
            Tango::detail::throw_err_data_type("delta_val", d_name, name, "Attribute::set_rds_prop_val()");
        }
    }

    //
    // For string representation: If there is a default (class or user) and if the user
    // entered a value equal to the default but with a different precision (3.2 and 3.20), take the
    // default one instead of the user one
    //

    if(class_defaults && delta_val_str != AlrmValueNotSpec)
    {
        double db;
        str.str("");
        str.clear();
        str << delta_val_str;
        if(str >> db && str.eof() && db == delta_val_class_def_db)
        {
            delta_val_str = delta_val_class_def;
        }
    }
    else if(usr_defaults && delta_val_str != AlrmValueNotSpec)
    {
        double db;
        str.str("");
        str.clear();
        str << delta_val_str;
        if(str >> db && str.eof() && db == delta_val_usr_def_db)
        {
            delta_val_str = delta_val_usr_def;
        }
    }

    Tango::detail::delete_startup_exception(*this, "delta_val", dev_name, check_startup_exceptions, startup_exceptions);

    //
    // And the delta_t
    //

    bool delta_t_defined = false;
    std::string delta_t_usr_def;
    double delta_t_usr_def_db = 0.0;
    std::string delta_t_class_def;
    double delta_t_class_def_db = 0.0;
    usr_defaults = false;
    class_defaults = false;
    if(TG_strcasecmp(att_alarm.delta_t, AlrmValueNotSpec) == 0 || TG_strcasecmp(att_alarm.delta_t, "0") == 0 ||
       TG_strcasecmp(att_alarm.delta_t, "0.0") == 0)
    {
        // force library defaults (even if user defaults defined)
        delta_t_str = "0";
    }
    else if(TG_strcasecmp(att_alarm.delta_t, NotANumber) == 0)
    {
        // set class default if defined, user default value if defined, otherwise use the library defaults

        class_defaults = Tango::detail::prop_in_list("delta_t", delta_t_class_def, def_class_prop);
        if(!class_defaults)
        {
            usr_defaults = Tango::detail::prop_in_list("delta_t", delta_t_usr_def, def_user_prop);
            if(!usr_defaults)
            {
                delta_t_str = "0";
            }
            else
            {
                str.str("");
                str.clear();
                str << delta_t_usr_def;
                str >> delta_t_usr_def_db;
                delta_t_str = delta_t_usr_def;
            }
        }
        else
        {
            str.str("");
            str.clear();
            str << delta_t_class_def;
            str >> delta_t_class_def_db;
            delta_t_str = delta_t_class_def;
        }
    }
    else if(strlen(att_alarm.delta_t) == 0)
    {
        // set user default value if defined, otherwise use the library defaults

        usr_defaults = Tango::detail::prop_in_list("delta_t", delta_t_usr_def, def_user_prop);
        if(!usr_defaults)
        {
            delta_t_str = "0";
        }
        else
        {
            str.str("");
            str.clear();
            str << delta_t_usr_def;
            str >> delta_t_usr_def_db;
            delta_t_str = delta_t_usr_def;
        }
    }
    else
    {
        // set property
        delta_t_str = att_alarm.delta_t;
    }

    if(delta_t_str != "0")
    {
        if((data_type != Tango::DEV_STRING) && (data_type != Tango::DEV_BOOLEAN) && (data_type != Tango::DEV_STATE))
        {
            str.str("");
            str.clear();

            str << delta_t_str;
            double db;
            if(!(str >> db && str.eof()))
            {
                Tango::detail::throw_err_format("delta_t", d_name, name, "Attribute::set_rds_prop_val");
            }
            delta_t = (long) db;
            str.str("");
            str.clear();
            str << delta_t;
            delta_t_str = str.str();
            delta_t_defined = true;
        }
        else
        {
            Tango::detail::throw_err_data_type("delta_t", d_name, name, "Attribute::set_rds_prop_val");
        }
    }
    else
    {
        delta_t = 0;
    }

    if(class_defaults && delta_t_str != AlrmValueNotSpec)
    {
        double db;
        str.str("");
        str.clear();
        str << delta_t_str;
        if(str >> db && str.eof() && db == delta_t_class_def_db)
        {
            delta_t_str = delta_t_class_def;
        }
    }
    else if(usr_defaults && delta_t_str != AlrmValueNotSpec)
    {
        double db;
        str.str("");
        str.clear();
        str << delta_t_str;
        if(str >> db && str.eof() && db == delta_t_usr_def_db)
        {
            delta_t_str = delta_t_usr_def;
        }
    }

    Tango::detail::delete_startup_exception(*this, "delta_t", dev_name, check_startup_exceptions, startup_exceptions);

    //
    // Set RDS alarm flag only if both delta_t and delta_val are defined
    //

    if(delta_t_defined && delta_val_defined)
    {
        alarm_conf.set(rds);
        Tango::detail::delete_startup_exception(
            *this, "rds_alarm", dev_name, check_startup_exceptions, startup_exceptions);
    }
    else if(delta_t_defined || delta_val_defined)
    {
        alarm_conf.reset(rds);

        //
        // Set device if not already done
        //

        try
        {
            if(dev == nullptr)
            {
                // TODO: check how to make cerr quiet
                std::cerr.setstate(std::ios::failbit);
                Tango::Util *tg = Tango::Util::instance();
                dev = tg->get_device_by_name(d_name);
                std::cerr.clear();
            }

            DEV_WARN_STREAM(dev) << "RDS (Read Different Set) incoherent in attribute " << name << " (only "
                                 << (delta_t_defined ? "delta_t" : "delta_val") << " is set) " << std::endl;
        }
        catch(...)
        {
            std::cerr.clear();
        }
    }
    else
    {
        alarm_conf.reset(rds);
        Tango::detail::delete_startup_exception(
            *this, "rds_alarm", dev_name, check_startup_exceptions, startup_exceptions);
    }
}

//+--------------------------------------------------------------------------------------------------------------------
//
// method :
//        Attribute::set_rds_prop_db()
//
// description :
//        Check which of the two properties related to RDS (delta_val, delta_t) has to be updated/deleted in Db
//
// Arguments:
//        in :
//            - att_alarm : New attribute properties
//            - def_user_prop : User defined default prop.
//            - def_class_prop : Class defined default prop.
//        out :
//            - v_db : Info for database update/delete
//
//---------------------------------------------------------------------------------------------------------------------

void Attribute::set_rds_prop_db(const AttributeAlarm &att_alarm,
                                std::vector<AttPropDb> &v_db,
                                const std::vector<AttrProperty> &def_user_prop,
                                const std::vector<AttrProperty> &def_class_prop)
{
    std::stringstream str;
    str.precision(TANGO_FLOAT_PRECISION);

    std::string delta_val_usr_def_val, delta_val_class_def_val;

    bool delta_val_user_defaults;
    bool delta_val_class_defaults;

    //
    // RDS alarm values (delta_val and delta_t) are stored in or deleted from the database only if both are set or both
    // not specified.
    //

    //
    // delta_val
    //

    std::string delta_val_tmp_str = att_alarm.delta_val.in();
    bool delta_val_is_number = true;

    delta_val_user_defaults = Tango::detail::prop_in_list("delta_val", delta_val_usr_def_val, def_user_prop);
    delta_val_class_defaults = Tango::detail::prop_in_list("delta_val", delta_val_class_def_val, def_class_prop);

    if(delta_val_class_defaults)
    {
        if((TG_strcasecmp(att_alarm.delta_val, NotANumber) == 0) ||
           (strcmp(att_alarm.delta_val, delta_val_class_def_val.c_str()) == 0))
        {
            delta_val_tmp_str = delta_val_class_def_val;
            delta_val_is_number = false;
        }
        else if(strlen(att_alarm.delta_val) == 0)
        {
            if(delta_val_user_defaults)
            {
                delta_val_tmp_str = delta_val_usr_def_val;
                delta_val_is_number = false;
            }
            else
            {
                delta_val_tmp_str = AlrmValueNotSpec;
                delta_val_is_number = false;
            }
        }
        else if(TG_strcasecmp(att_alarm.delta_val, AlrmValueNotSpec) == 0)
        {
            delta_val_tmp_str = AlrmValueNotSpec;
            delta_val_is_number = false;
        }
    }
    else if(delta_val_user_defaults)
    {
        if((TG_strcasecmp(att_alarm.delta_val, NotANumber) == 0) ||
           (strcmp(att_alarm.delta_val, delta_val_usr_def_val.c_str()) == 0) || (strlen(att_alarm.delta_val) == 0))
        {
            delta_val_tmp_str = delta_val_usr_def_val;
            delta_val_is_number = false;
        }
        else if(TG_strcasecmp(att_alarm.delta_val, AlrmValueNotSpec) == 0)
        {
            delta_val_tmp_str = AlrmValueNotSpec;
            delta_val_is_number = false;
        }
    }
    else if((TG_strcasecmp(att_alarm.delta_val, AlrmValueNotSpec) == 0) ||
            (TG_strcasecmp(att_alarm.delta_val, NotANumber) == 0) || (strlen(att_alarm.delta_val) == 0))
    {
        delta_val_tmp_str = AlrmValueNotSpec;
        delta_val_is_number = false;
    }

    if(delta_val_is_number)
    {
        if((data_type != Tango::DEV_STRING) && (data_type != Tango::DEV_BOOLEAN) && (data_type != Tango::DEV_STATE) &&
           (data_type != Tango::DEV_ENUM))
        {
            double db;

            str.str("");
            str.clear();
            str << att_alarm.delta_val;
            if(!(str >> db && str.eof()))
            {
                Tango::detail::throw_err_format("delta_val", d_name, name, "Attribute::set_rds_prop_db)");
            }
            switch(data_type)
            {
            case Tango::DEV_SHORT:
                str.str("");
                str.clear();
                str << (DevShort) db;
                break;

            case Tango::DEV_LONG:
                str.str("");
                str.clear();
                str << (DevLong) db;
                break;

            case Tango::DEV_LONG64:
                str.str("");
                str.clear();
                str << (DevLong64) db;
                break;

            case Tango::DEV_DOUBLE:
                break;

            case Tango::DEV_FLOAT:
                break;

            case Tango::DEV_USHORT:
                str.str("");
                str.clear();
                (db < 0.0) ? str << (DevUShort) (-db) : str << (DevUShort) db;
                break;

            case Tango::DEV_UCHAR:
                str.str("");
                str.clear();
                (db < 0.0) ? str << (short) ((DevUChar) (-db)) : str << (short) ((DevUChar) db);
                break;

            case Tango::DEV_ULONG:
                str.str("");
                str.clear();
                (db < 0.0) ? str << (DevULong) (-db) : str << (DevULong) db;
                break;

            case Tango::DEV_ULONG64:
                str.str("");
                str.clear();
                (db < 0.0) ? str << (DevULong64) (-db) : str << (DevULong64) db;
                break;

            case Tango::DEV_ENCODED:
                str.str("");
                str.clear();
                (db < 0.0) ? str << (short) (DevUChar) (-db) : str << (short) (DevUChar) db;
                break;
            }
            if(data_type != Tango::DEV_FLOAT && data_type != Tango::DEV_DOUBLE)
            {
                delta_val_tmp_str = str.str();
            }
        }
        else
        {
            Tango::detail::throw_err_data_type("delta_val", d_name, name, "Attribute::set_rds_prop_db()");
        }
    }

    //
    // delta_t
    //

    std::string delta_t_tmp_str = att_alarm.delta_t.in();
    std::string delta_t_usr_def_val;
    std::string delta_t_class_def_val;
    bool delta_t_user_defaults;
    bool delta_t_class_defaults;
    bool delta_t_is_number = true;

    delta_t_user_defaults = Tango::detail::prop_in_list("delta_t", delta_t_usr_def_val, def_user_prop);
    delta_t_class_defaults = Tango::detail::prop_in_list("delta_t", delta_t_class_def_val, def_class_prop);

    if(delta_t_class_defaults)
    {
        if((TG_strcasecmp(att_alarm.delta_t, NotANumber) == 0) ||
           (strcmp(att_alarm.delta_t, delta_val_class_def_val.c_str()) == 0))
        {
            delta_t_tmp_str = delta_t_class_def_val;
            delta_t_is_number = false;
        }
        else if(strlen(att_alarm.delta_t) == 0)
        {
            if(delta_t_user_defaults)
            {
                delta_t_tmp_str = delta_t_usr_def_val;
                delta_t_is_number = false;
            }
            else
            {
                delta_t_tmp_str = "0";
                delta_t_is_number = false;
            }
        }
        else if(TG_strcasecmp(att_alarm.delta_t, AlrmValueNotSpec) == 0)
        {
            delta_t_tmp_str = "0";
            delta_t_is_number = false;
        }
    }
    else if(delta_t_user_defaults)
    {
        if((TG_strcasecmp(att_alarm.delta_t, NotANumber) == 0) ||
           (strcmp(att_alarm.delta_t, delta_t_usr_def_val.c_str()) == 0) || (strlen(att_alarm.delta_t) == 0))
        {
            delta_t_tmp_str = delta_t_usr_def_val;
            delta_t_is_number = false;
        }
        else if((TG_strcasecmp(att_alarm.delta_t, AlrmValueNotSpec) == 0) ||
                (TG_strcasecmp(att_alarm.delta_t, "0") == 0) || (TG_strcasecmp(att_alarm.delta_t, "0.0") == 0))
        {
            delta_t_tmp_str = "0";
            delta_t_is_number = false;
        }
    }
    else if((TG_strcasecmp(att_alarm.delta_t, AlrmValueNotSpec) == 0) || (TG_strcasecmp(att_alarm.delta_t, "0") == 0) ||
            (TG_strcasecmp(att_alarm.delta_t, "0.0") == 0) || (TG_strcasecmp(att_alarm.delta_t, NotANumber) == 0) ||
            (strlen(att_alarm.delta_t) == 0))
    {
        delta_t_tmp_str = "0";
        delta_t_is_number = false;
    }

    if(delta_t_is_number)
    {
        if((data_type != Tango::DEV_STRING) && (data_type != Tango::DEV_BOOLEAN) && (data_type != Tango::DEV_STATE))
        {
            str.str("");
            str.clear();
            str << att_alarm.delta_t;
            double db;
            if(!(str >> db && str.eof()))
            {
                Tango::detail::throw_err_format("delta_t", d_name, name, "Attribute::set_rds_prop_db()");
            }
            str.str("");
            str.clear();
            str << (long) db;
            delta_t_tmp_str = str.str();
        }
        else
        {
            Tango::detail::throw_err_data_type("delta_t", d_name, name, "Attribute::set_rds_prop_db()");
        }
    }

    //
    // Check if to store both delta_val and delta_t in database, delete or do nothing
    //

    bool rds_store_both = false;
    bool rds_delete_both = false;

    if(delta_val_class_defaults || delta_t_class_defaults)
    {
        if((TG_strcasecmp(delta_val_tmp_str.c_str(), delta_val_class_def_val.c_str()) == 0) &&
           (TG_strcasecmp(delta_t_tmp_str.c_str(), delta_t_class_def_val.c_str()) == 0))
        {
            rds_delete_both = true;
        }
        else if(((TG_strcasecmp(delta_val_tmp_str.c_str(), AlrmValueNotSpec) == 0) &&
                 (TG_strcasecmp(delta_t_tmp_str.c_str(), "0") == 0)) ||
                ((TG_strcasecmp(delta_val_tmp_str.c_str(), AlrmValueNotSpec) != 0) &&
                 (TG_strcasecmp(delta_t_tmp_str.c_str(), "0") != 0)))
        {
            rds_store_both = true;
        }
    }
    else if(delta_val_user_defaults || delta_t_user_defaults)
    {
        if((TG_strcasecmp(delta_val_tmp_str.c_str(), delta_val_usr_def_val.c_str()) == 0) &&
           (TG_strcasecmp(delta_t_tmp_str.c_str(), delta_t_usr_def_val.c_str()) == 0))
        {
            rds_delete_both = true;
        }
        else if(((TG_strcasecmp(delta_val_tmp_str.c_str(), AlrmValueNotSpec) == 0) &&
                 (TG_strcasecmp(delta_t_tmp_str.c_str(), "0") == 0)) ||
                ((TG_strcasecmp(delta_val_tmp_str.c_str(), AlrmValueNotSpec) != 0) &&
                 (TG_strcasecmp(delta_t_tmp_str.c_str(), "0") != 0)))
        {
            rds_store_both = true;
        }
    }
    else if((TG_strcasecmp(delta_val_tmp_str.c_str(), AlrmValueNotSpec) != 0) &&
            (TG_strcasecmp(delta_t_tmp_str.c_str(), "0") != 0))
    {
        rds_store_both = true;
    }
    else if((TG_strcasecmp(delta_val_tmp_str.c_str(), AlrmValueNotSpec) == 0) &&
            (TG_strcasecmp(delta_t_tmp_str.c_str(), "0") == 0))
    {
        rds_delete_both = true;
    }

    if(rds_store_both)
    {
        AttPropDb apd;
        apd.name = "delta_val";
        apd.dba = UPD;
        apd.db_value = delta_val_tmp_str.c_str();
        v_db.push_back(apd);

        apd.name = "delta_t";
        apd.db_value = delta_t_tmp_str.c_str();
        v_db.push_back(apd);
    }

    if(rds_delete_both)
    {
        AttPropDb apd;
        apd.name = "delta_val";
        apd.dba = DEL;
        v_db.push_back(apd);

        apd.name = "delta_t";
        v_db.push_back(apd);
    }
}

//+--------------------------------------------------------------------------------------------------------------------
//
// method :
//        Attribute::set_one_event_prop()
//
// description :
//        Analyse new property when they are related to event. We have four of these properties: rel_change, abs_change,
//        archive_rel_change, archive_abs_change
//
// Arguments:
//        in :
//            - prop_name : The property name
//            - conf_val : The new property value
//            - def_user_prop : User defined default prop.
//            - def_class_prop : Class defined default prop.
//        out :
//            - prop_val : The new property in Attribute object
//            - v_db : Info for database update/delete
//
//---------------------------------------------------------------------------------------------------------------------

void Attribute::set_one_event_prop(const char *prop_name,
                                   const CORBA::String_member &conf_val,
                                   double *prop_val,
                                   std::vector<AttPropDb> &v_db,
                                   const std::vector<AttrProperty> &def_user_prop,
                                   const std::vector<AttrProperty> &def_class_prop)
{
    AttPropDb apd;
    apd.name = prop_name;

    std::string rel_change_str(conf_val); // provided, comma separated min and/or max values for the property
    std::string rel_change_usr_str; // user default, comma separated min and/or max values for the property, if defined
    std::string
        rel_change_class_str; // class default, comma separated min and/or max values for the property, if defined
    std::vector<double> rel_change_tmp;   // vector containing min and max values of the property
    std::vector<double> rel_change_usr;   // vector containing user default min and max values of the property
    std::vector<double> rel_change_class; // vector containing class default min and max values of the property
    bool rel_change_usr_def;              // true if there are user defaults defined for the property
    bool rel_change_class_def;            // true if there are class defaults defined for the property

    std::vector<bool> rel_change_set_usr_def;   // vector indicating if to use provided values for the property or the
                                                // user defaults if defined
    std::vector<bool> rel_change_set_class_def; // vector indicating if to use provided values for the property or the
                                                // class defaults if defined

    rel_change_usr_def = Tango::detail::prop_in_list(prop_name, rel_change_usr_str, def_user_prop);
    rel_change_class_def = Tango::detail::prop_in_list(prop_name, rel_change_class_str, def_class_prop);

    //
    // Validate user or class default properties
    //

    if(rel_change_usr_def)
    {
        validate_change_properties(d_name, prop_name, rel_change_usr_str, rel_change_usr);
    }

    if(rel_change_class_def)
    {
        validate_change_properties(d_name, prop_name, rel_change_class_str, rel_change_class);
    }

    //
    // Validate user provided values
    //

    validate_change_properties(
        d_name, prop_name, rel_change_str, rel_change_tmp, rel_change_set_usr_def, rel_change_set_class_def);

    //
    // Set values
    //

    double old_val[2];
    old_val[0] = prop_val[0];
    old_val[1] = prop_val[1];

    if(rel_change_class_def)
    {
        if(rel_change_set_class_def[0])
        {
            prop_val[0] = rel_change_class[0];
        }
        else if(rel_change_usr_def)
        {
            if(rel_change_set_usr_def[0])
            {
                prop_val[0] = rel_change_usr[0];
            }
            else
            {
                prop_val[0] = rel_change_tmp[0];
            }
        }
        else
        {
            prop_val[0] = rel_change_tmp[0];
        }

        if(rel_change_set_class_def[1])
        {
            prop_val[1] = rel_change_class[1];
        }
        else if(rel_change_usr_def)
        {
            if(rel_change_set_usr_def[1])
            {
                prop_val[1] = rel_change_usr[1];
            }
            else
            {
                prop_val[1] = rel_change_tmp[1];
            }
        }
        else
        {
            prop_val[1] = rel_change_tmp[1];
        }
    }
    else if(rel_change_usr_def)
    {
        auto select_value = [&rel_change_set_class_def, &rel_change_set_usr_def, &rel_change_usr, &rel_change_tmp](
                                size_t index) -> double
        {
            if(rel_change_set_class_def[index])
            {
                return rel_change_usr[index];
            }

            if(rel_change_set_usr_def[index])
            {
                return rel_change_usr[index];
            }

            return rel_change_tmp[index];
        };

        prop_val[0] = select_value(0);
        prop_val[1] = select_value(1);
    }
    else
    {
        prop_val[0] = rel_change_tmp[0];
        prop_val[1] = rel_change_tmp[1];
    }

    //
    // Manage db
    //

    if(old_val[0] != prop_val[0] || old_val[1] != prop_val[1])
    {
        if(prop_val[0] == prop_val[1])
        {
            if(prop_val[0] == INT_MAX)
            {
                if(rel_change_usr_def || rel_change_class_def)
                {
                    apd.dba = UPD_FROM_DB;
                    apd.db_value_db.clear();
                    apd.db_value_db.push_back(prop_val[0]);
                    v_db.push_back(apd);
                }
                else
                {
                    apd.dba = DEL;
                    v_db.push_back(apd);
                }
            }
            else if(rel_change_usr_def && prop_val[0] == fabs(rel_change_usr[0]))
            {
                if(rel_change_class_def)
                {
                    apd.dba = UPD_FROM_DB;
                    apd.db_value_db.clear();
                    apd.db_value_db.push_back(prop_val[0]);
                    v_db.push_back(apd);
                }
                else
                {
                    apd.dba = DEL;
                    v_db.push_back(apd);
                }
            }
            else if(rel_change_class_def && prop_val[0] == fabs(rel_change_class[0]))
            {
                apd.dba = DEL;
                v_db.push_back(apd);
            }
            else
            {
                apd.dba = UPD_FROM_DB;
                apd.db_value_db.clear();
                apd.db_value_db.push_back(prop_val[0]);
                v_db.push_back(apd);
            }
        }
        else
        {
            if(rel_change_class_def)
            {
                rel_change_tmp.clear();
                rel_change_tmp.push_back(prop_val[0]);
                rel_change_tmp.push_back(prop_val[1]);

                event_prop_db_xxx(rel_change_tmp, rel_change_class, v_db, apd);
            }
            else if(rel_change_usr_def)
            {
                rel_change_tmp.clear();
                rel_change_tmp.push_back(prop_val[0]);
                rel_change_tmp.push_back(prop_val[1]);

                event_prop_db_xxx(rel_change_tmp, rel_change_usr, v_db, apd);
            }
            else
            {
                apd.dba = UPD_FROM_DB;
                apd.db_value_db = rel_change_tmp;
                v_db.push_back(apd);
            }
        }
    }
}

//+------------------------------------------------------------------------------------------------------------------
//
// method :
//        Attribute::set_prop_5_specific
//
// description :
//        Set IDl 5 specific attribute configuration. It's only the enum labels for attribute of the DEV_ENUM data type.
//        The other IDL 5 specific attribute properties are non-mutable.
//
// argument :
//        in :
//            - conf : The new attribute configuration
//            - dev_name: The device name
//            - from_ds : Flag set to true if the request comes from a DS code
//        out :
//            - v_db : Info for Db update/delete
//
//-------------------------------------------------------------------------------------------------------------------

void Attribute::set_prop_5_specific(const AttributeConfig_5 &conf,
                                    const std::string &dev_name,
                                    bool from_ds,
                                    std::vector<AttPropDb> &v_db)
{
    if(data_type == Tango::DEV_ENUM)
    {
        AttPropDb apd;
        apd.name = "enum_labels";

        //
        // Some error cases: Zero length in labels vector
        //

        if(conf.enum_labels.length() == 0)
        {
            std::stringstream ss;
            ss << "Device " << dev_name << "- Attribute : " << name;
            ss << "- No value defined for the property enum_labels";

            TANGO_THROW_EXCEPTION(API_AttrOptProp, ss.str());
        }

        if(!from_ds)
        {
            if(conf.enum_labels.length() != 1 ||
               (TG_strcasecmp(conf.enum_labels[0], AlrmValueNotSpec) != 0 &&
                TG_strcasecmp(conf.enum_labels[0], NotANumber) != 0 && strlen(conf.enum_labels[0]) != 0))
            {
                if(conf.enum_labels.length() != enum_labels.size())
                {
                    std::stringstream ss;
                    ss << "Device " << dev_name << "-> Attribute : " << name;
                    ss << "\nIt's not supported to change enumeration labels number from outside the Tango device "
                          "class code";

                    TANGO_THROW_EXCEPTION(API_NotSupportedFeature, ss.str());
                }
            }
        }

        //
        // Set some data used by the algo like the user or class properties
        //

        Tango::DeviceClass *dev_class = get_att_device_class(dev_name);
        Tango::Attr *att_ptr;

        Tango::MultiClassAttribute *mca = dev_class->get_class_attr();
        att_ptr = &(mca->get_attr(name));

        std::vector<AttrProperty> &def_user_prop = att_ptr->get_user_default_properties();

        std::vector<AttrProperty> &def_class_prop = att_ptr->get_class_properties();

        //
        // Set the enum labels
        //

        std::string enum_labels_usr_def;
        std::string enum_labels_class_def;
        bool usr_defaults = false;
        bool class_defaults = false;

        usr_defaults = Tango::detail::prop_in_list("enum_labels", enum_labels_usr_def, def_user_prop);
        class_defaults = Tango::detail::prop_in_list("enum_labels", enum_labels_class_def, def_class_prop);

        std::vector<std::string> old_labels = enum_labels;

        if(TG_strcasecmp(conf.enum_labels[0], AlrmValueNotSpec) == 0)
        {
            // no library defaults for enum
            std::stringstream ss;
            ss << "Device " << dev_name << "-> Attribute : " << name;
            ss << "\nNo enumeration label(s) default library value for attribute of the Tango::DEV_ENUM data type";

            TANGO_THROW_EXCEPTION(API_AttrOptProp, ss.str());
        }
        else if(strlen(conf.enum_labels[0]) == 0)
        {
            // set user default value if defined, otherwise use the library defaults

            if(!usr_defaults)
            {
                std::stringstream ss;
                ss << "Device " << dev_name << "-> Attribute : " << name;
                ss << "\nNo enumeration labels default library value for attribute of the Tango::DEV_ENUM data type";

                TANGO_THROW_EXCEPTION(API_AttrOptProp, ss.str());
            }
            else
            {
                build_check_enum_labels(enum_labels_usr_def);
                if(enum_labels != old_labels)
                {
                    apd.dba = DEL;
                    v_db.push_back(apd);
                }
            }
        }
        else if(TG_strcasecmp(conf.enum_labels[0], NotANumber) == 0)
        {
            // set class default if defined, user default value if defined, otherwise use the library defaults

            if(!class_defaults)
            {
                if(!usr_defaults)
                {
                    std::stringstream ss;
                    ss << "Device " << dev_name << "-> Attribute : " << name;
                    ss << "\nNo enumeration labels default library value for attribute of the Tango::DEV_ENUM data "
                          "type";

                    TANGO_THROW_EXCEPTION(API_AttrOptProp, ss.str());
                }
                else
                {
                    build_check_enum_labels(enum_labels_usr_def);
                    if(enum_labels != old_labels)
                    {
                        apd.dba = DEL;
                        v_db.push_back(apd);
                    }
                }
            }
            else
            {
                build_check_enum_labels(enum_labels_class_def);
                if(enum_labels != old_labels)
                {
                    apd.dba = DEL;
                    v_db.push_back(apd);
                }
            }
        }
        else
        {
            // set property

            std::string labs;
            for(size_t loop = 0; loop < conf.enum_labels.length(); loop++)
            {
                labs = labs + conf.enum_labels[loop].in();
                if(loop != conf.enum_labels.length() - 1)
                {
                    labs = labs + ',';
                }
            }
            build_check_enum_labels(labs);

            if(enum_labels != old_labels)
            {
                if(usr_defaults && labs == enum_labels_usr_def)
                {
                    if(class_defaults)
                    {
                        apd.dba = UPD_FROM_VECT_STR;
                        apd.db_value_v_str = enum_labels;
                    }
                    else
                    {
                        apd.dba = DEL;
                    }
                    v_db.push_back(apd);
                }
                else if(class_defaults && labs == enum_labels_class_def)
                {
                    apd.dba = DEL;
                    v_db.push_back(apd);
                }
                else
                {
                    apd.dba = UPD_FROM_VECT_STR;
                    apd.db_value_v_str = enum_labels;
                    v_db.push_back(apd);
                }
            }
        }

        Tango::detail::delete_startup_exception(
            *this, "enum_labels", dev_name, check_startup_exceptions, startup_exceptions);
    }
}

void Attribute::set_min_alarm(char *new_min_alarm_str)
{
    set_min_alarm(std::string(new_min_alarm_str));
}

void Attribute::set_min_alarm(const char *new_min_alarm_str)
{
    set_min_alarm(std::string(new_min_alarm_str));
}

void Attribute::set_max_alarm(char *new_max_alarm_str)
{
    set_max_alarm(std::string(new_max_alarm_str));
}

void Attribute::set_max_alarm(const char *new_max_alarm_str)
{
    set_max_alarm(std::string(new_max_alarm_str));
}

void Attribute::set_min_warning(char *new_min_warning_str)
{
    set_min_warning(std::string(new_min_warning_str));
}

void Attribute::set_min_warning(const char *new_min_warning_str)
{
    set_min_warning(std::string(new_min_warning_str));
}

void Attribute::set_max_warning(char *new_max_warning_str)
{
    set_max_warning(std::string(new_max_warning_str));
}

void Attribute::set_max_warning(const char *new_max_warning_str)
{
    set_max_warning(std::string(new_max_warning_str));
}

//+------------------------------------------------------------------------------------------------------------------
//
// method :
//        Attribute::db_access
//
// description :
//        Update / Delete info in database
//
// argument :
//         in :
//            - cosp : The structure with all infos needed to access the database
//            - dev_name : The device name
//
//--------------------------------------------------------------------------------------------------------------------

void Attribute::db_access(const Attribute::CheckOneStrProp &cosp, const std::string &dev_name)
{
    //
    // Update db only if needed
    //

    if(*cosp.prop_to_update != 0)
    {
        TANGO_LOG_DEBUG << *cosp.prop_to_update << " properties to update in db" << std::endl;
        (*cosp.db_d)[0] << *cosp.prop_to_update;
        // for (const auto &elem: *cosp.db_d)
        //     TANGO_LOG << "prop_to_update name = " << elem.name << std::endl;

        Tango::Util *tg = Tango::Util::instance();

        //
        // Implement a reconnection schema. The first exception received if the db server is down is a COMM_FAILURE
        // exception. Following exception received from following calls are TRANSIENT exception
        //

        bool retry = true;
        while(retry)
        {
            try
            {
                tg->get_database()->put_device_attribute_property(dev_name, *cosp.db_d);
                retry = false;
            }
            catch(CORBA::COMM_FAILURE &)
            {
                tg->get_database()->reconnect(true);
            }
        }
    }

    if(*cosp.prop_to_delete != 0)
    {
        TANGO_LOG_DEBUG << *cosp.prop_to_delete << " properties to delete in db" << std::endl;
        (*cosp.db_del)[0] << *cosp.prop_to_delete;
        // for (const auto &elem: *cosp.db_del)
        //     TANGO_LOG << "prop_to_delete name = " << elem.name << std::endl;

        Tango::Util *tg = Tango::Util::instance();

        //
        // Implement a reconnection schema. The first exception received if the db server is down is a COMM_FAILURE
        // exception. Following exception received from following calls are TRANSIENT exception
        //

        bool retry = true;
        while(retry)
        {
            try
            {
                tg->get_database()->delete_device_attribute_property(dev_name, *cosp.db_del);
                retry = false;
            }
            catch(CORBA::COMM_FAILURE &)
            {
                tg->get_database()->reconnect(true);
            }
        }
    }
}

//+------------------------------------------------------------------------------------------------------------------
//
// method :
//        Attribute::validate_change_properties
//
// description :
//        Check if attribute change properties are properly defined
//
// argument :
//         in :
//            - dev_name : The name of the device
//            - prop_name : The name of the property
//            - change_prop_str : A string representing the change property (in the form of either "value" or
//                                "value1,value2")
//
//         out :
//            - validated_prop : A vector of parsed change properties values in the form of numbers of type double
//
//-------------------------------------------------------------------------------------------------------------------

void Attribute::validate_change_properties(const std::string &dev_name,
                                           const char *prop_name,
                                           std::string &change_prop_str,
                                           std::vector<double> &validated_prop)
{
    std::vector<bool> bring_usr_def;
    std::vector<bool> bring_class_def;

    validate_change_properties(dev_name, prop_name, change_prop_str, validated_prop, bring_usr_def, bring_class_def);
}

//+-----------------------------------------------------------------------------------------------------------------
//
// method :
//        Attribute::validate_change_properties
//
// description :
//        Check if attribute change properties are properly defined
//
// argument :
//         in :
//            - dev_name : The name of the device
//            - prop_name : The name of the property
//            - change_prop_str : A string representing the change property (in the form of either "value" or
//                                "value1,value2")
//
//         out :
//            - validated_prop : A vector of parsed change properties values in the form of numbers of type double
//            - bring_usr_def : A vector of boolean values indicating if for a corresponding value in validated_prop
//                              vector there was a request to restore the user defined value
//            - bring_class_def : A vector of boolean values indicating if for a corresponding value in validated_prop
//                                vector there was a request to restore the class defined value
//
//------------------------------------------------------------------------------------------------------------------

void Attribute::validate_change_properties(const std::string &dev_name,
                                           const char *prop_name,
                                           std::string &change_prop_str,
                                           std::vector<double> &validated_prop,
                                           std::vector<bool> &bring_usr_def,
                                           std::vector<bool> &bring_class_def)
{
    // by default, values for event change properties are set to INT_MAX
    validated_prop.clear();
    validated_prop.push_back(INT_MAX);
    validated_prop.push_back(INT_MAX);

    // by default, bring user and class defined properties flags are set to false
    bring_usr_def.clear();
    bring_usr_def.push_back(false);
    bring_usr_def.push_back(false);

    bring_class_def.clear();
    bring_class_def.push_back(false);
    bring_class_def.push_back(false);

    std::stringstream str;
    str.precision(TANGO_FLOAT_PRECISION);
    std::string prop_min;
    std::string prop_max;
    bool one_param = true;
    double prop_tmp;

    size_t pos = change_prop_str.find(',');
    if(pos != std::string::npos)
    {
        prop_min = change_prop_str.substr(0, pos);
        prop_max = change_prop_str.erase(0, pos + 1);
        one_param = false;
    }
    else
    {
        prop_min = change_prop_str;
    }

    if(TG_strcasecmp(prop_min.c_str(), AlrmValueNotSpec) == 0)
    {
        validated_prop[0] = INT_MAX;
        validated_prop[1] = INT_MAX;
    }
    else if(TG_strcasecmp(prop_min.c_str(), NotANumber) == 0)
    {
        bring_class_def[0] = true;
        bring_class_def[1] = true;

        bring_usr_def[0] = true;
        bring_usr_def[1] = true;
    }
    else if(prop_min == "")
    {
        bring_usr_def[0] = true;
        bring_usr_def[1] = true;
    }
    else
    {
        str << prop_min;
        if(str >> prop_tmp && str.eof())
        {
            if(fabs(prop_tmp) > 0 && prop_tmp != INT_MAX)
            {
                if((data_type != Tango::DEV_STRING) && (data_type != Tango::DEV_BOOLEAN) &&
                   (data_type != Tango::DEV_STATE))
                {
                    validated_prop[0] = -fabs(prop_tmp);
                    validated_prop[1] = fabs(prop_tmp);
                }
                else
                {
                    Tango::detail::throw_err_data_type(prop_name,
                                                       const_cast<std::string &>(dev_name),
                                                       name,
                                                       "Attribute::validate_change_properties()");
                }
            }
        }
        else
        {
            Tango::detail::throw_err_format(prop_name, dev_name, name, "Attribute::validate_change_properties()");
        }
    }

    if(!one_param)
    {
        validated_prop[1] = INT_MAX;
        bring_usr_def[1] = false;
        bring_class_def[1] = false;

        if(TG_strcasecmp(prop_max.c_str(), AlrmValueNotSpec) == 0)
        {
            validated_prop[1] = INT_MAX;
        }
        else if(TG_strcasecmp(prop_max.c_str(), NotANumber) == 0)
        {
            bring_class_def[1] = true;
        }
        else if(prop_max == "")
        {
            bring_usr_def[1] = true;
        }
        else
        {
            str.str("");
            str.clear();
            str << prop_max;
            if(str >> prop_tmp && str.eof())
            {
                if(fabs(prop_tmp) > 0 && prop_tmp != INT_MAX)
                {
                    if((data_type != Tango::DEV_STRING) && (data_type != Tango::DEV_BOOLEAN) &&
                       (data_type != Tango::DEV_STATE))
                    {
                        validated_prop[1] = fabs(prop_tmp);
                    }
                    else
                    {
                        Tango::detail::throw_err_data_type(prop_name,
                                                           const_cast<std::string &>(dev_name),
                                                           name,
                                                           "Attribute::validate_change_properties()");
                    }
                }
            }
            else
            {
                Tango::detail::throw_err_format(prop_name, dev_name, name, "Attribute::validate_change_properties()");
            }
        }
    }
}

//+-----------------------------------------------------------------------------------------------------------------
//
// method :
//        Attribute::event_prop_db_xxx
//
// description :
//
// argument :
//         in :
//          - rel_change_tmp :
//            - rel_change_usr :
//            - v_db :
//        out :
//            - apd :
//
//-------------------------------------------------------------------------------------------------------------------

void Attribute::event_prop_db_xxx(const std::vector<double> &rel_change_tmp,
                                  const std::vector<double> &rel_change_usr,
                                  std::vector<AttPropDb> &v_db,
                                  AttPropDb &apd)
{
    std::vector<std::string> rel_change_str_tmp(2);
    std::vector<bool> rel_change_usr_def_tmp(2);
    rel_change_usr_def_tmp[0] = rel_change_usr_def_tmp[1] = false;

    if(rel_change_tmp[0] == rel_change_usr[0])
    {
        rel_change_str_tmp[0] = NotANumber;
        rel_change_usr_def_tmp[0] = true;
    }

    if(rel_change_tmp[1] == rel_change_usr[1])
    {
        rel_change_str_tmp[1] = NotANumber;
        rel_change_usr_def_tmp[1] = true;
    }

    if(rel_change_usr_def_tmp[0] && rel_change_usr_def_tmp[1])
    {
        apd.dba = DEL;
        v_db.push_back(apd);
    }
    else if(!rel_change_usr_def_tmp[0] && !rel_change_usr_def_tmp[1])
    {
        apd.dba = UPD_FROM_DB;
        apd.db_value_db = rel_change_tmp;
        v_db.push_back(apd);
    }
    else
    {
        std::stringstream str;
        str.precision(TANGO_FLOAT_PRECISION);
        if(rel_change_usr_def_tmp[0] && !rel_change_usr_def_tmp[1])
        {
            str << rel_change_tmp[1];
            rel_change_str_tmp[1] = str.str();
        }
        else
        {
            str << rel_change_tmp[0];
            rel_change_str_tmp[0] = str.str();
        }
        apd.dba = UPD_FROM_VECT_STR;
        apd.db_value_v_str = rel_change_str_tmp;
        v_db.push_back(apd);
    }
}

//+--------------------------------------------------------------------------------------------------------------------
//
// method :
//        Attribute::set_one_event_period()
//
// description :
//        Analyse new property when for event period. We have two of them.
//
// Arguments:
//        in :
//            - prop_name : The property name
//            - conf_val : The new property value
//            - prop_def : Property lib default value
//            - def_user_prop : User defined default prop.
//            - def_class_prop : Class defined default prop.
//        out :
//            - prop_val : The new property in Attribute object
//            - v_db : Info for database update/delete
//
//---------------------------------------------------------------------------------------------------------------------

void Attribute::set_one_event_period(const char *prop_name,
                                     const CORBA::String_member &conf_val,
                                     int &prop_val,
                                     const int &prop_def,
                                     std::vector<AttPropDb> &v_db,
                                     const std::vector<AttrProperty> &def_user_prop,
                                     const std::vector<AttrProperty> &def_class_prop)
{
    AttPropDb apd;
    apd.name = prop_name;

    std::stringstream def_event_period;
    def_event_period << (int) (prop_def);

    std::string class_def_val;
    std::string usr_def_val;

    bool user_defaults = Tango::detail::prop_in_list(prop_name, usr_def_val, def_user_prop);
    bool class_defaults = Tango::detail::prop_in_list(prop_name, class_def_val, def_class_prop);

    std::stringstream str;
    str.precision(TANGO_FLOAT_PRECISION);

    int old_prop_val = prop_val;

    if(TG_strcasecmp(conf_val, AlrmValueNotSpec) == 0 || TG_strcasecmp(conf_val, def_event_period.str().c_str()) == 0)
    {
        // force library defaults (even if user defaults defined)
        prop_val = prop_def;
    }
    else if(TG_strcasecmp(conf_val, NotANumber) == 0)
    {
        if(!class_defaults)
        {
            if(!user_defaults)
            {
                prop_val = prop_def;
            }
            else
            {
                str.str("");
                str.clear();
                str << usr_def_val;
                double db;
                if(!(str >> db && str.eof()))
                {
                    Tango::detail::throw_err_format(prop_name, d_name, name, "Attribute::set_one_event_period()");
                }
                prop_val = (int) db;
            }
        }
        else
        {
            str.str("");
            str.clear();
            str << class_def_val;
            double db;
            if(!(str >> db && str.eof()))
            {
                Tango::detail::throw_err_format(prop_name, d_name, name, "Attribute::set_one_event_period()");
            }
            prop_val = (int) db;
        }
    }
    else if(strlen(conf_val) == 0)
    {
        // set user default value if defined, otherwise use the library defaults
        if(!user_defaults)
        {
            prop_val = prop_def;
        }
        else
        {
            str.str("");
            str.clear();
            str << usr_def_val;
            double db;
            if(!(str >> db && str.eof()))
            {
                Tango::detail::throw_err_format(prop_name, d_name, name, "Attribute::set_one_event_period()");
            }
            prop_val = (int) db;
        }
    }
    else
    {
        // set property
        str.str("");
        str.clear();
        str << conf_val;
        double db;
        if(!(str >> db && str.eof()))
        {
            Tango::detail::throw_err_format(prop_name, d_name, name, "Attribute::set_one_event_period()");
        }
        prop_val = (int) db;
    }

    //
    // Manage db
    //

    bool store_in_db = true;

    if(prop_val != old_prop_val)
    {
        if(class_defaults)
        {
            if((TG_strcasecmp(class_def_val.c_str(), AlrmValueNotSpec) == 0) ||
               (TG_strcasecmp(class_def_val.c_str(), NotANumber) == 0) || (strlen(class_def_val.c_str()) == 0))
            {
                std::stringstream str;
                str << (int) (prop_def);
                class_def_val = str.str();
            }

            bool input_equal_def = false;
            str.str("");
            str.clear();
            str << conf_val.in();
            double db;
            if(str >> db && str.eof())
            {
                str.str("");
                str.clear();
                str << class_def_val;
                int i;
                str >> i;
                if((int) db == i)
                {
                    input_equal_def = true;
                }
            }
            if((TG_strcasecmp(conf_val, NotANumber) == 0) || (strcmp(conf_val.in(), class_def_val.c_str()) == 0) ||
               (input_equal_def))
            {
                store_in_db = false;
            }
        }
        else if(user_defaults)
        {
            bool input_equal_def = false;
            str.str("");
            str.clear();
            str << conf_val.in();
            double db;
            if(str >> db && str.eof())
            {
                str.str("");
                str.clear();
                str << usr_def_val;
                int i;
                str >> i;
                if((int) db == i)
                {
                    input_equal_def = true;
                }
            }
            if((TG_strcasecmp(conf_val, NotANumber) == 0) || (strcmp(conf_val.in(), usr_def_val.c_str()) == 0) ||
               (strlen(conf_val) == 0) || (input_equal_def))
            {
                store_in_db = false;
            }
        }
        else
        {
            bool input_equal_def = false;
            str.str("");
            str.clear();
            str << conf_val.in();
            double db;
            if(str >> db && str.eof())
            {
                if((int) db == (int) (prop_def))
                {
                    input_equal_def = true;
                }
            }
            if((TG_strcasecmp(conf_val, AlrmValueNotSpec) == 0) ||
               (TG_strcasecmp(conf_val, def_event_period.str().c_str()) == 0) ||
               (TG_strcasecmp(conf_val, NotANumber) == 0) || (strlen(conf_val) == 0) || (input_equal_def))
            {
                store_in_db = false;
            }
        }

        if(store_in_db)
        {
            std::string tmp = conf_val.in();
            if(TG_strcasecmp(conf_val, AlrmValueNotSpec) == 0)
            {
                tmp = def_event_period.str();
            }
            else if(strlen(conf_val) == 0)
            {
                if(class_defaults && user_defaults)
                {
                    tmp = usr_def_val;
                }
                else
                {
                    tmp = def_event_period.str();
                }
            }
            else
            {
                str.str("");
                str.clear();
                str << conf_val.in();
                double db;
                if(!(str >> db && str.eof()))
                {
                    Tango::detail::throw_err_format(prop_name, d_name, name, "Attribute::set_one_event_period()");
                }
                str.str("");
                str.clear();
                str << (int) db;
                tmp = str.str();
            }

            apd.dba = UPD;
            apd.db_value = tmp;
            v_db.push_back(apd);
        }
        else
        {
            apd.dba = DEL;
            v_db.push_back(apd);
        }
    }
}

//+-----------------------------------------------------------------------------------------------------------------
//
// method :
//        Attribute::check_hard_coded()
//
// description :
//        Check if the user tries to change attribute properties considered as hard coded added by IDL 5
//      Throw exception in case of
//
// args :
//         in :
//            - user_conf : The attribute configuration sent by the user
//
//------------------------------------------------------------------------------------------------------------------

void Attribute::check_hard_coded(const AttributeConfig_5 &user_conf)
{
    //
    // Check root attribute name
    //

    if(is_fwd_att())
    {
        FwdAttribute *fwd = static_cast<FwdAttribute *>(this);
        std::string root_attr_name(fwd->get_fwd_dev_name() + '/' + fwd->get_fwd_att_name());
        std::string user_root_att_name(user_conf.root_attr_name.in());
        std::transform(user_root_att_name.begin(), user_root_att_name.end(), user_root_att_name.begin(), ::tolower);
        if(user_root_att_name != root_attr_name)
        {
            throw_hard_coded_prop("root_attr_name");
        }
    }

    //
    // Memorized config
    //

    if(writable == WRITE || writable == READ_WRITE)
    {
        WAttribute *watt = static_cast<WAttribute *>(this);
        if(watt->is_memorized() != user_conf.memorized)
        {
            throw_hard_coded_prop("memorized");
        }
        if(watt->is_memorized())
        {
            if(watt->is_memorized_init() != user_conf.mem_init)
            {
                throw_hard_coded_prop("memorized");
            }
        }
    }
}

//+-----------------------------------------------------------------------------------------------------------------
//
// method :
//        Attribute::convert_prop_value()
//
// description :
//
//
// args :
//         in :
//            - prop_name : The attribute property name
//            - dev_name : The device name
//            - value_str : Attribute property value stored as a string
//        out :
//            - val : Attribute property value stored as a number
//
//------------------------------------------------------------------------------------------------------------------

void Attribute::convert_prop_value(const char *prop_name,
                                   std::string &value_str,
                                   Attr_CheckVal &val,
                                   const std::string &dev_name)
{
    std::stringstream str;
    str.precision(TANGO_FLOAT_PRECISION);

    str << value_str;
    if(!(str >> val.db && str.eof()))
    {
        Tango::detail::throw_err_format(prop_name, dev_name, name, "Attribute::convert_prop_value()");
    }

    switch(data_type)
    {
    case Tango::DEV_SHORT:
    case Tango::DEV_ENUM:
        val.sh = (DevShort) val.db;
        str.str("");
        str.clear();
        str << val.sh;
        break;

    case Tango::DEV_LONG:
        val.lg = (DevLong) val.db;
        str.str("");
        str.clear();
        str << val.lg;
        break;

    case Tango::DEV_LONG64:
        val.lg64 = (DevLong64) val.db;
        str.str("");
        str.clear();
        str << val.lg64;
        break;

    case Tango::DEV_DOUBLE:
        break;

    case Tango::DEV_FLOAT:
        val.fl = (DevFloat) val.db;
        break;

    case Tango::DEV_USHORT:
        (val.db < 0.0) ? val.ush = (DevUShort) (-val.db) : val.ush = (DevUShort) val.db;
        str.str("");
        str.clear();
        str << val.ush;
        break;

    case Tango::DEV_UCHAR:
        (val.db < 0.0) ? val.uch = (DevUChar) (-val.db) : val.uch = (DevUChar) val.db;
        str.str("");
        str.clear();
        str << (short) val.uch;
        break;

    case Tango::DEV_ULONG:
        (val.db < 0.0) ? val.ulg = (DevULong) (-val.db) : val.ulg = (DevULong) val.db;
        str.str("");
        str.clear();
        str << val.ulg;
        break;

    case Tango::DEV_ULONG64:
        (val.db < 0.0) ? val.ulg64 = (DevULong64) (-val.db) : val.ulg64 = (DevULong64) val.db;
        str.str("");
        str.clear();
        str << val.ulg64;
        break;

    case Tango::DEV_ENCODED:
        (val.db < 0.0) ? val.uch = (DevUChar) (-val.db) : val.uch = (DevUChar) val.db;
        str.str("");
        str.clear();
        str << (short) val.uch;
        break;
    }
    if(data_type != Tango::DEV_FLOAT && data_type != Tango::DEV_DOUBLE)
    {
        value_str = str.str();
    }
}

//+--------------------------------------------------------------------------------------------------------------------
//
// method :
//        Attribute::upd_database
//
// description :
//        Update database according to the info received in the v_db parameter. We update or delete info in db for
//        attribute configuration.
//
// Arguments:
//        in :
//            - v_db : The vector of info with what has to be done in DB
//
//---------------------------------------------------------------------------------------------------------------------

void Attribute::upd_database(std::vector<AttPropDb> &v_db)
{
    //
    // Build info needed for the method upddating DB
    //

    long prop_to_update = 0;
    long prop_to_delete = 0;

    Tango::DbData db_d;
    Tango::DbData db_del;

    db_d.emplace_back(name);
    db_del.emplace_back(name);

    std::vector<AttPropDb>::iterator ite;

    //
    // A loop for each db action
    //

    for(ite = v_db.begin(); ite != v_db.end(); ++ite)
    {
        switch(ite->dba)
        {
        case UPD:
        {
            DbDatum desc(ite->name);
            desc << ite->db_value;
            db_d.push_back(desc);
            prop_to_update++;
        }
        break;

        case UPD_FROM_DB:
        {
            DbDatum desc(ite->name);
            desc << ite->db_value_db;
            db_d.push_back(desc);
            prop_to_update++;
        }
        break;

        case UPD_FROM_VECT_STR:
        {
            DbDatum desc(ite->name);
            desc << ite->db_value_v_str;
            db_d.push_back(desc);
            prop_to_update++;
        }
        break;

        case DEL:
        {
            DbDatum desc(ite->name);
            db_del.push_back(desc);
            prop_to_delete++;
        }
        break;
        }
    }

    //
    // Update database
    //

    struct CheckOneStrProp cosp;
    cosp.prop_to_delete = &prop_to_delete;
    cosp.prop_to_update = &prop_to_update;
    cosp.db_d = &db_d;
    cosp.db_del = &db_del;

    db_access(cosp, d_name);
}

} // namespace Tango
