/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.clerezza.platform.concepts.core;
import java.net.URISyntaxException;
import java.net.URL;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.QueryParam;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriInfo;
import javax.ws.rs.core.Response.Status;
import org.apache.clerezza.platform.concepts.ontologies.CONCEPTS;
import org.apache.clerezza.platform.graphprovider.content.ContentGraphProvider;
import org.apache.clerezza.platform.typerendering.RenderletManager;
import org.apache.clerezza.platform.typerendering.scalaserverpages.ScalaServerPagesRenderlet;
import org.apache.clerezza.rdf.core.BNode;
import org.apache.clerezza.rdf.core.UriRef;
import org.apache.clerezza.rdf.core.impl.SimpleMGraph;
import org.apache.clerezza.rdf.ontologies.PLATFORM;
import org.apache.clerezza.rdf.ontologies.RDF;
import org.apache.clerezza.rdf.utils.GraphNode;
import org.apache.clerezza.rdf.utils.UnionMGraph;
import org.apache.clerezza.utils.UriException;
import org.apache.clerezza.web.fileserver.FileServer;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Property;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.Service;
import org.osgi.service.component.ComponentContext;
/**
* This JAX-RS resource can be used to show selected concepts of a resource.
* The URI path of this service is /concepts/generic-resource.
*
* @author tio
*/
@Component
@Service(Object.class)
@Property(name = "javax.ws.rs", boolValue = true)
@Path("/concepts/generic-resource")
public class GenericResourcePage extends FileServer {
@Reference
protected ContentGraphProvider cgProvider;
@Reference
private RenderletManager renderletManager;
private RemoteConceptsDescriptionManager remoteConceptsDescriptionManager = null;
protected void activate(ComponentContext context)
throws URISyntaxException {
configure(context.getBundleContext());
URL template = getClass().getResource("generic-resource-page.ssp");
renderletManager.registerRenderlet(ScalaServerPagesRenderlet.class.getName(),
new UriRef(template.toURI().toString()),
CONCEPTS.GenericResourcePage, "naked",
MediaType.APPLICATION_XHTML_XML_TYPE, true);
remoteConceptsDescriptionManager = new RemoteConceptsDescriptionManager();
}
/**
* Retrieves a resource and its associated concepts to be rendered with a template
* registered for CONCEPTS.GenericResourcePage.
*
* @param uri specifies the uri of a resource
*
* @return GraphNode
*/
@GET
public GraphNode GenericResourcePage(@QueryParam("uri") UriRef uri,
@Context UriInfo uriInfo) {
GraphNode node = new GraphNode(new BNode(), new UnionMGraph(new SimpleMGraph(),
cgProvider.getContentGraph(),
remoteConceptsDescriptionManager.getRemoteConceptsDescriptionMGraph()));
node.addProperty(RDF.type, PLATFORM.HeadedPage);
node.addProperty(RDF.type, CONCEPTS.GenericResourcePage);
if (uri != null) {
node.addProperty(CONCEPTS.resource, uri);
} else {
throw new WebApplicationException(Response.status(Status.BAD_REQUEST)
.entity("No resource uri defined.").build());
}
return node;
}
}