Skip to main content
Jump to: navigation, search

Difference between revisions of "Org.eclipse.higgins.idas.cp.rdf"

Line 1: Line 1:
The [[RDF CP]] is a very simple, read-only [[IdAS]] [[Context Provider]] that can retrieve an RDF document from a URI and expose it as a Higgins [[Context]].
The [[RDF CP]] is a very simple, read-only [[IdAS]] [[Context Provider]] that can retrieve an RDF document from a URI and expose it as a Higgins [[Context]].

Revision as of 10:08, 15 December 2008


Higgins logo 76Wx100H.jpg

The RDF CP is a very simple, read-only IdAS Context Provider that can retrieve an RDF document from a URI and expose it as a Higgins Context.


  • Javadoc: Javadoc
  • Status: first code in Higgins B-1-1-M3
  • Language: Java
  • Packaging: OSGI bundle


  • no plan


The RDF CP expects a single configuration setting in its ContextId via the Configuration API: uri

Example configuration using an XML configuration file:

	xsd:schemaLocation=" Configuration.xsd ">
	<!--  The setting handlers are classes that consume Setting elements where the Type matches and generate an object of the Class -->
		<SettingHandler Type="htf:map" Class="java.util.Map" Handler="org.eclipse.higgins.configuration.xml.MapHandler"/>
		<SettingHandler Type="htf:list" Class="java.util.List" Handler="org.eclipse.higgins.configuration.xml.ListHandler"/>
		<SettingHandler Type="xsd:string" Class="java.lang.String" Handler="org.eclipse.higgins.configuration.xml.StringHandler"/>
		<SettingHandler Type="htf:classinstance" Class="java.lang.Object" Handler="org.eclipse.higgins.configuration.xml.ClassInstanceHandler"/>
		<SettingHandler Type="htf:classsingleton" Class="java.lang.Object" Handler="org.eclipse.higgins.configuration.xml.ClassSingletonHandler"/>
		<SettingHandler Type="htf:uri" Class="" Handler="org.eclipse.higgins.configuration.xml.URIHandler"/>
	<Setting Name="DeploymentConfiguration" Type="htf:map">
		<Setting Name="ComponentSettings" Type="htf:map">
			<Setting Name="RDFContextFactory" Type="htf:map" />
			<Setting Name="IdASRegistry" Type="htf:map">
				<Setting Name="ContextFactoryInstancesList" Type="htf:list">
					<Setting Name="RDFContextFactory" Type="htf:map">
						<Setting Name="Instance" Type="htf:string">RDFContextFactory</Setting>
						<Setting Name="ContextTypes" Type="htf:list">
							<Setting Name="ContextType1" Type="htf:string">$context$mime*application*rdf.xml</Setting>
				<Setting Name="ContextIdsList" Type="htf:list">
					<Setting Name="ContextId1" Type="htf:map">
						<Setting Name="ContextId" Type="xsd:string">rdfTestContext</Setting>
						<Setting Name="ContextTypes" Type="htf:list">
							<Setting Name="HigginsContextType" Type="xsd:string">$context$mime*application*rdf.xml</Setting>
						<Setting Name="uris" Type="htf:list">
							<Setting Name="uri1" Type="htf:uri"></Setting>
		<!-- The name of the class that implements the RDF Context Provider -->
		<Setting Name="RDFContextFactory" Type="htf:classinstance">org.eclipse.higgins.idas.cp.rdf.RDFContextFactory</Setting>
		<!-- The name of the class that provides the factory for the class that implements the IdASRegistry -->
		<Setting Name="IdASRegistry" Type="htf:classsingleton">org.eclipse.higgins.idas.registry.IdASRegistry</Setting>


  • The RDF CP does not require authentication materials. It assumes that anyone can retrieve the URI with the RDF data.
  • The RDF CP sends an "Accept: application/rdf+xml" HTTP header when retrieving the RDF data.
  • The RDF CP is suitable for reading RDF data from Hash and 303 Cool URIs.
  • The RDF CP is useful in conjunction with IdAS UDI Resolution, since 303 and Hash Cool URIs are one type of Entity UDI. However, the RDF CP does not depend on UDI.
  • The recommended Context Type for contexts opened with the RDF CP is $context$mime*application*rdf.xml.

See Also

Back to the top