class GeoserverMigrations::Migration

Attributes

assets_path[RW]
name[RW]
version[RW]

Public Class Methods

new(name = self.class.name, version = nil) click to toggle source
# File lib/geoserver_migrations/migration.rb, line 6
def initialize(name = self.class.name, version = nil)
  @name       = name
  @version    = version
  @connection = nil
  @layers_to_create = {}
  @layers_to_delete = []
  @styles_to_delete = []
  @ordered_actions_to_take = []
  @assets_path = nil
end

Public Instance Methods

add_resource(resource_name) click to toggle source
# File lib/geoserver_migrations/migration.rb, line 40
def add_resource(resource_name)
  # translate to full file-name and raise error if not exists?

  full_resource_name = File.join(File.expand_path(self.assets_path), resource_name )

  raise StandardError.new("File #{full_resource_name} not found!") unless File.exists?(full_resource_name)

  @ordered_actions_to_take << {action: :add_resource, params: {name: full_resource_name }}
end
announce(message) click to toggle source
# File lib/geoserver_migrations/migration.rb, line 95
def announce(message)
  text = "#{version} #{name}: #{message}"
  length = [0, 75 - text.length].max
  write "== %s %s" % [text, "=" * length]
end
create_layer(layer_name, &block) click to toggle source
# File lib/geoserver_migrations/migration.rb, line 50
def create_layer(layer_name, &block)
  layer_config = GeoserverMigrations::LayerConfig.new(layer_name)
  layer_config.instance_eval(&block) if block_given?
  if layer_config.valid?
    @layers_to_create[layer_name] = layer_config
    @ordered_actions_to_take << {action: :create_layer, params: {name: layer_name, layer_config: layer_config}}
  end
end
create_layergroup(layer_name, &block) click to toggle source
# File lib/geoserver_migrations/migration.rb, line 59
def create_layergroup(layer_name, &block)
  layergroup_config = GeoserverMigrations::LayergroupConfig.new(layer_name)
  layergroup_config.instance_eval(&block) if block_given?
  if layergroup_config.valid?
    @layers_to_create[layer_name] = layergroup_config
    @ordered_actions_to_take << {action: :create_layergroup, params: {name: layer_name, layer_config: layergroup_config}}
  end
end
delete_layer(layer_name) click to toggle source
# File lib/geoserver_migrations/migration.rb, line 76
def delete_layer(layer_name)
  @layers_to_delete << layer_name
  @ordered_actions_to_take << {action: :delete_layer, params: {name: layer_name }}
end
delete_layergroup(layer_name) click to toggle source
# File lib/geoserver_migrations/migration.rb, line 81
def delete_layergroup(layer_name)
  @layers_to_delete << layer_name
  @ordered_actions_to_take << {action: :delete_layergroup, params: {name: layer_name }}
end
delete_style(style_name) click to toggle source
# File lib/geoserver_migrations/migration.rb, line 86
def delete_style(style_name)
  @styles_to_delete << style_name
  @ordered_actions_to_take << {action: :delete_style, params: {name: style_name }}
end
migrate(direction = :up) click to toggle source
# File lib/geoserver_migrations/migration.rb, line 17
def migrate(direction = :up)
  return unless [:up, :down].include?(direction)

  case direction
    when :up   then announce "migrating"
    when :down then announce "reverting"
  end

  time = Benchmark.measure do
    # collect configuration
    run

    # puts @layers_to_create.inspect

    # create configured layers
    GeoserverMigrations::Base.connection.execute(@ordered_actions_to_take, direction)
  end

  operation = direction == :up ? 'migrated' : 'reverted'
  announce "#{operation} (%.4fs)" % time.real; write
end
say(message, subitem = false) click to toggle source
# File lib/geoserver_migrations/migration.rb, line 101
def say(message, subitem = false)
  write "#{subitem ? "   ->" : "--"} #{message}"
end
say_with_time(message) { || ... } click to toggle source
# File lib/geoserver_migrations/migration.rb, line 105
def say_with_time(message)
  say(message)
  result = nil
  time = Benchmark.measure { result = yield }
  say "%.4fs" % time.real, :subitem
  say("#{result} rows", :subitem) if result.is_a?(Integer)
  result
end
update_style(layer_name, &block) click to toggle source
# File lib/geoserver_migrations/migration.rb, line 68
def update_style(layer_name, &block)
  layer_config = GeoserverMigrations::LayerConfig.new(layer_name, true)
  layer_config.instance_eval(&block) if block_given?
  if layer_config.valid?
    @ordered_actions_to_take << {action: :update_style, params: {name: layer_name, layer_config: layer_config}}
  end
end
write(text = "") click to toggle source
# File lib/geoserver_migrations/migration.rb, line 91
def write(text = "")
  puts(text) unless Rails.env.test? 
end