Class: RGeoServer::FeatureType

Inherits:
ResourceInfo show all
Defined in:
lib/rgeoserver/featuretype.rb

Overview

A feature type is a vector based spatial resource or data set that originates from a data store. In some cases, like Shapefile, a feature type has a one-to-one relationship with its data store. In other cases, like PostGIS, the relationship of feature type to data store is many-to-one, with each feature type corresponding to a table in the database.

Constant Summary collapse

OBJ_ATTRIBUTES = 
{
  :catalog => "catalog", 
  :name => "name", 
  :native_name => "nativeName", 
  :workspace => "workspace", 
  :data_store => "data_store", 
  :enabled => "enabled", 
  :metadata => "metadata", 
  :metadata_links => "metadataLinks", 
  :title => "title", 
  :abstract => "abstract",
  :keywords => 'keywords',
  :native_bounds => 'native_bounds', 
  :latlon_bounds => "latlon_bounds", 
  :projection_policy => 'projection_policy'
}
OBJ_DEFAULT_ATTRIBUTES = 
{
  :catalog => nil,
  :workspace => nil,
  :data_store => nil,
  :name => nil,
  :native_name => nil,
  :enabled => "true",
  :metadata => {},
  :metadata_links => {},
  :title => nil,
  :abstract => nil,
  :keywords => [],
  :native_bounds => {'minx'=>nil, 'miny' =>nil, 'maxx'=>nil, 'maxy'=>nil, 'crs' =>nil},
  :latlon_bounds => {'minx'=>nil, 'miny' =>nil, 'maxx'=>nil, 'maxy'=>nil, 'crs' =>nil},
  :projection_policy => :keep
}
METADATA_TYPES =

see inspire.ec.europa.eu/schemas/common/1.0/common.xsd

{
  'ISO19139' => 'text/xml',
  'TC211' => 'text/xml'
}
PROJECTION_POLICIES =

see github.com/geoserver/geoserver/blob/master/src/main/src/main/java/org/geoserver/catalog/ProjectionPolicy.java

{
  :force => 'FORCE_DECLARED',
  :reproject => 'REPROJECT_TO_DECLARED',
  :keep => 'NONE'
}
@@route = 
"workspaces/%s/datastores/%s/featuretypes"
@@root = 
"featureTypes"
@@resource_name = 
"featureType"

Instance Attribute Summary

Attributes inherited from ResourceInfo

#catalog

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from ResourceInfo

#clear, #create_method, #delete, list, #new?, #profile, #profile=, #profile_xml_to_ng, #refresh, #save, #to_s, update_attribute_accessors, #update_method

Constructor Details

#initialize(catalog, options) ⇒ FeatureType

Returns a new instance of FeatureType.

Parameters:

Raises:



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# File 'lib/rgeoserver/featuretype.rb', line 144

def initialize catalog, options
  raise GeoServerArgumentError, "FeatureType.new requires :data_store option" unless options.include?(:data_store)
  raise GeoServerArgumentError, "FeatureType.new requires :name option" unless options.include?(:name)
  super(catalog)
  _run_initialize_callbacks do
    workspace = options[:workspace] || 'default'
    if workspace.instance_of? String
      @workspace = @catalog.get_workspace(workspace)
    elsif workspace.instance_of? Workspace
      @workspace = workspace
    else
      raise GeoServerArgumentError, "Not a valid workspace: #{workspace}"
    end
    
    data_store = options[:data_store]
    if data_store.instance_of? String
      @data_store = @catalog.get_data_store(@workspace.name, data_store)
    elsif data_store.instance_of? DataStore
      @data_store = data_store
    else
      raise GeoServerArgumentError, "Not a valid datastore: #{data_store}"
    end

    @name = options[:name].strip
    @route = route
  end
end

Class Method Details

.member_xpath ⇒ Object 



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# File 'lib/rgeoserver/featuretype.rb', line 72

def self.member_xpath
  "//#{resource_name}"
end

.resource_name ⇒ Object 



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# File 'lib/rgeoserver/featuretype.rb', line 64

def self.resource_name
  @@resource_name
end

.root ⇒ Object 



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# File 'lib/rgeoserver/featuretype.rb', line 60

def self.root
  @@root
end

.root_xpath ⇒ Object 



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# File 'lib/rgeoserver/featuretype.rb', line 68

def self.root_xpath
  "//#{root}/#{resource_name}"
end

Instance Method Details

#message ⇒ Object 



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# File 'lib/rgeoserver/featuretype.rb', line 88

def message
  builder = Nokogiri::XML::Builder.new do |xml|
    xml.featureType {
      xml.nativeName @native_name.nil?? @name : @native_name if new? # on new only
      xml.name @name
      xml.enabled @enabled
      xml.title @title
      xml.abstract @abstract
      xml.keywords {
        @keywords.compact.uniq.each do |k|
          xml.string RGeoServer::Metadata::to_keyword(k)
        end
      } unless @keywords.empty?

      xml.metadataLinks {
        @metadata_links.each do |m|
          raise ArgumentError, "Malformed metadata_links" unless m.is_a? Hash
          xml.metadataLink {
            xml.type_ to_mimetype(m['metadataType'])
            xml.metadataType m['metadataType']
            xml.content m['content']
          }
        end
      } unless @metadata_links.empty?
      
      xml.store(:class => 'dataStore') {
        xml.name @data_store.name
      } if new? or data_store_changed?

      xml.nativeBoundingBox {
        xml.minx native_bounds['minx'] if native_bounds['minx']
        xml.miny native_bounds['miny'] if native_bounds['miny']
        xml.maxx native_bounds['maxx'] if native_bounds['maxx']
        xml.maxy native_bounds['maxy'] if native_bounds['maxy']
        xml.crs native_bounds['crs'] if native_bounds['crs']
      } if valid_native_bounds? and (new? or native_bounds_changed?)

      xml.latLonBoundingBox {
        xml.minx latlon_bounds['minx'] if latlon_bounds['minx']
        xml.miny latlon_bounds['miny'] if latlon_bounds['miny']
        xml.maxx latlon_bounds['maxx'] if latlon_bounds['maxx']
        xml.maxy latlon_bounds['maxy'] if latlon_bounds['maxy']
        xml.crs latlon_bounds['crs'] if latlon_bounds['crs']
      } if valid_latlon_bounds? and (new? or latlon_bounds_changed?)

      xml.projectionPolicy get_projection_policy_message(projection_policy) if projection_policy and new? or projection_policy_changed?

    }
  end
  @message = builder.doc.to_xml
  @message
end

#profile_xml_to_hash(profile_xml) ⇒ Object 



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# File 'lib/rgeoserver/featuretype.rb', line 172

def profile_xml_to_hash profile_xml
  doc = profile_xml_to_ng profile_xml
  ft = doc.at_xpath('//' + FeatureType::resource_name)
  ap({:doc => doc, :ft => ft}) if $DEBUG
  h = {
    "name" => ft.at_xpath('name').text,
    "enabled" => ft.at_xpath('enabled/text()').to_s,
    "native_name" => ft.at_xpath('nativeName').text,
    "title" => ft.at_xpath('title').text,
    "abstract" => ft.at_xpath('abstract/text()'), # optional
    "keywords" => ft.xpath('keywords/string').collect { |k| k.at_xpath('.').text},
    "workspace" => @workspace.name,
    "data_store" => @data_store.name,
    "srs" => ft.at_xpath('srs').text,
    "native_bounds" => {
      'minx' => ft.at_xpath('nativeBoundingBox/minx').text.to_f,
      'miny' => ft.at_xpath('nativeBoundingBox/miny').text.to_f,
      'maxx' => ft.at_xpath('nativeBoundingBox/maxx').text.to_f,
      'maxy' => ft.at_xpath('nativeBoundingBox/maxy').text.to_f,
      'crs' => ft.at_xpath('srs').text
    },
    "latlon_bounds" => {
      'minx' => ft.at_xpath('latLonBoundingBox/minx').text.to_f,
      'miny' => ft.at_xpath('latLonBoundingBox/miny').text.to_f,
      'maxx' => ft.at_xpath('latLonBoundingBox/maxx').text.to_f,
      'maxy' => ft.at_xpath('latLonBoundingBox/maxy').text.to_f,
      'crs' => ft.at_xpath('latLonBoundingBox/crs').text
    },
    "projection_policy" => get_projection_policy_sym(ft.at_xpath('projectionPolicy').text),
    "metadata_links" => ft.xpath('metadataLinks/metadataLink').collect{ |m|
      {
        'type' => m.at_xpath('type').text,
        'metadataType' => m.at_xpath('metadataType').text,
        'content' => m.at_xpath('content').text
      }
    },
    "attributes" => ft.xpath('attributes/attribute').collect{ |a|
      {
        'name' => a.at_xpath('name').text,
        'minOccurs' => a.at_xpath('minOccurs').text,
        'maxOccurs' => a.at_xpath('maxOccurs').text,
        'nillable' => a.at_xpath('nillable').text,
        'binding' => a.at_xpath('binding').text
      }
    }
  }.freeze
  h
end

#route ⇒ Object

Raises:



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# File 'lib/rgeoserver/featuretype.rb', line 76

def route
  raise GeoServerArgumentError, "workspace not defined" unless @workspace
  raise GeoServerArgumentError, "data_store not defined" unless @data_store
  @@route % [@workspace.name , @data_store.name]
end

#to_mimetype(type, default = 'text/xml') ⇒ Object 



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# File 'lib/rgeoserver/featuretype.rb', line 82

def to_mimetype(type, default = 'text/xml')
  k = type.to_s.strip.upcase
  return METADATA_TYPES[k] if METADATA_TYPES.include? k
  default
end

#update_params(name_route = name) ⇒ Object 



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# File 'lib/rgeoserver/featuretype.rb', line 233

def update_params name_route = name
  super(name_route)
  # recalculate='nativebbox,latlonbbox'
end

#valid_latlon_bounds? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rgeoserver/featuretype.rb', line 227

def valid_latlon_bounds?
  bbox = RGeoServer::BoundingBox.new(latlon_bounds)
  ap bbox if $DEBUG
  not bbox.nil? and bbox.valid? and not latlon_bounds['crs'].empty?
end

#valid_native_bounds? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rgeoserver/featuretype.rb', line 221

def valid_native_bounds?
  bbox = RGeoServer::BoundingBox.new(native_bounds)
  ap bbox if $DEBUG
  not bbox.nil? and bbox.valid? and not native_bounds['crs'].empty?
end