/*
* 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.rdf.jena.sparql;
import com.hp.hpl.jena.graph.Graph;
import com.hp.hpl.jena.graph.Node;
import com.hp.hpl.jena.graph.Node_URI;
import com.hp.hpl.jena.shared.Lock;
import com.hp.hpl.jena.sparql.core.DatasetGraph;
import com.hp.hpl.jena.sparql.core.Quad;
import com.hp.hpl.jena.sparql.util.Context;
import java.util.Iterator;
import org.apache.clerezza.rdf.core.TripleCollection;
import org.apache.clerezza.rdf.core.UriRef;
import org.apache.clerezza.rdf.core.access.NoSuchEntityException;
import org.apache.clerezza.rdf.core.access.TcManager;
import org.apache.clerezza.rdf.jena.facade.JenaGraph;
/**
*
* @author rbn
*/
class TcDatasetGraph implements DatasetGraph {
private TcManager tcManager;
private TripleCollection defaultGraph;
TcDatasetGraph(TcManager tcManager, TripleCollection defaultGraph) {
this.tcManager = tcManager;
this.defaultGraph = defaultGraph;
}
@Override
public Graph getDefaultGraph() {
final JenaGraph jenaGraph = new JenaGraph(defaultGraph);
return jenaGraph;
}
@Override
public Graph getGraph(Node node) {
final JenaGraph jenaGraph = new JenaGraph(
tcManager.getTriples(new UriRef(node.getURI())));
return jenaGraph;
}
@Override
public boolean containsGraph(Node node) {
try {
tcManager.getTriples(new UriRef(node.getURI()));
return true;
} catch (NoSuchEntityException e) {
return false;
}
}
@Override
public Iterator<Node> listGraphNodes() {
final Iterator<UriRef> graphsIter = tcManager.listTripleCollections().iterator();
return new Iterator<Node>() {
@Override
public boolean hasNext() {
return graphsIter.hasNext();
}
@Override
public Node next() {
UriRef uriRef = graphsIter.next();
if (uriRef == null) {
return null;
}
return new Node_URI(uriRef.getUnicodeString()) {};
}
@Override
public void remove() {
throw new UnsupportedOperationException("Not supported yet.");
}
};
}
@Override
public Lock getLock() {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public long size() {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public void close() {
}
@Override
public Context getContext() {
return null;
}
@Override
public boolean isEmpty() {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public void add(Quad quad) {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public void addGraph(Node graphName, Graph graph) {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public boolean contains(Node g, Node s, Node p, Node o) {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public boolean contains(Quad quad) {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public void delete(Quad quad) {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public void deleteAny(Node g, Node s, Node p, Node o) {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public Iterator<Quad> find(Quad quad) {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public Iterator<Quad> find(Node g, Node s, Node p, Node o) {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public void removeGraph(Node graphName) {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public void setDefaultGraph(Graph g) {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public Iterator<Quad> find() {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public Iterator<Quad> findNG(Node node, Node node1, Node node2, Node node3) {
throw new UnsupportedOperationException("Not supported yet.");
}
}