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syndication/rdf

  • syndication
  • rdf
syndicationinfo.cpp
1/*
2 * This file is part of the syndication library
3 *
4 * Copyright (C) 2006 Frank Osterfeld <osterfeld@kde.org>
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB. If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 *
21 */
22
23#include "syndicationinfo.h"
24#include "property.h"
25#include "statement.h"
26#include "syndicationvocab.h"
27
28#include <tools.h>
29
30#include <QtCore/QString>
31
32namespace Syndication {
33namespace RDF {
34
35 SyndicationInfo::SyndicationInfo(ResourcePtr resource) : ResourceWrapper(resource)
36{
37}
38
39SyndicationInfo::~SyndicationInfo()
40{
41}
42
43SyndicationInfo::Period SyndicationInfo::updatePeriod() const
44{
45 return stringToPeriod(resource()->property(SyndicationVocab::self()->updatePeriod())->asString());
46}
47
48int SyndicationInfo::updateFrequency() const
49{
50 QString freqStr = resource()->property(SyndicationVocab::self()->updateFrequency())->asString();
51
52 if (freqStr.isEmpty())
53 return 1; // 1 is default
54
55 bool ok = false;
56 int freq = freqStr.toInt(&ok);
57
58 if (ok)
59 return freq;
60 else
61 return 1; // 1 is default
62}
63
64time_t SyndicationInfo::updateBase() const
65{
66 QString str = resource()->property(SyndicationVocab::self()->updateBase())->asString();
67
68 return parseDate(str, ISODate);
69}
70
71QString SyndicationInfo::debugInfo() const
72{
73 QString info;
74 if (updatePeriod() != Daily)
75 info += QString::fromLatin1("syn:updatePeriod: #%1#\n").arg(periodToString(updatePeriod()));
76 info += QString::fromLatin1("syn:updateFrequency: #%1#\n").arg(QString::number(updateFrequency()));
77
78 QString dbase = dateTimeToString(updateBase());
79 if (!dbase.isNull())
80 info += QString::fromLatin1("syn:updateBase: #%1#\n").arg(dbase);
81
82 return info;
83}
84
85QString SyndicationInfo::periodToString(Period period)
86{
87 switch (period)
88 {
89 case Daily:
90 return QLatin1String("daily");
91 case Hourly:
92 return QLatin1String("hourly");
93 case Monthly:
94 return QLatin1String("monthly");
95 case Weekly:
96 return QLatin1String("weekly");
97 case Yearly:
98 return QLatin1String("yearly");
99 default: // should never happen
100 return QString();
101 }
102}
103
104SyndicationInfo::Period SyndicationInfo::stringToPeriod(const QString& str)
105{
106 if (str.isEmpty())
107 return Daily; // default is "daily"
108
109 if (str == QLatin1String("hourly"))
110 return Hourly;
111 if (str == QLatin1String("monthly"))
112 return Monthly;
113 if (str == QLatin1String("weekly"))
114 return Weekly;
115 if (str == QLatin1String("yearly"))
116 return Yearly;
117
118 return Daily; // default is "daily"
119}
120
121} // namespace RDF
122} // namespace Syndication
Syndication::RDF::ResourceWrapper
A wrapper for RDF resources.
Definition: resourcewrapper.h:41
Syndication::RDF::ResourceWrapper::resource
ResourcePtr resource() const
returns the wrapped resource.
Definition: resourcewrapper.cpp:75
Syndication::RDF::SyndicationInfo::SyndicationInfo
SyndicationInfo()
creates a wrapper wrapping a null resource.
Syndication::RDF::SyndicationInfo::updateFrequency
int updateFrequency() const
Used to describe the frequency of updates in relation to the update period.
Definition: syndicationinfo.cpp:48
Syndication::RDF::SyndicationInfo::stringToPeriod
static Period stringToPeriod(const QString &str)
parses a Period value from a string.
Definition: syndicationinfo.cpp:104
Syndication::RDF::SyndicationInfo::Period
Period
update period enum as used by updatePeriod().
Definition: syndicationinfo.h:52
Syndication::RDF::SyndicationInfo::Yearly
@ Yearly
the feed is updated yearly
Definition: syndicationinfo.h:57
Syndication::RDF::SyndicationInfo::Daily
@ Daily
the feed is updated daily
Definition: syndicationinfo.h:54
Syndication::RDF::SyndicationInfo::Hourly
@ Hourly
the feed is updated hourly
Definition: syndicationinfo.h:53
Syndication::RDF::SyndicationInfo::Weekly
@ Weekly
the feed is updated weekly
Definition: syndicationinfo.h:55
Syndication::RDF::SyndicationInfo::Monthly
@ Monthly
the feed is updated monthly
Definition: syndicationinfo.h:56
Syndication::RDF::SyndicationInfo::periodToString
static QString periodToString(Period period)
returns Period value as string.
Definition: syndicationinfo.cpp:85
Syndication::RDF::SyndicationInfo::updateBase
time_t updateBase() const
Defines a base date to be used in concert with updatePeriod and updateFrequency to calculate the publ...
Definition: syndicationinfo.cpp:64
Syndication::RDF::SyndicationInfo::updatePeriod
Period updatePeriod() const
Describes the period over which the channel format is updated.
Definition: syndicationinfo.cpp:43
Syndication::RDF::SyndicationInfo::debugInfo
QString debugInfo() const
description of the syndication information for debugging purposes
Definition: syndicationinfo.cpp:71
Syndication::RDF::SyndicationInfo::~SyndicationInfo
virtual ~SyndicationInfo()
virtual destructor
Definition: syndicationinfo.cpp:39
Syndication::RDF::SyndicationVocab::self
static SyndicationVocab * self()
returns the singleton instance
Definition: syndicationvocab.cpp:67
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