| /* |
| * 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.jena.web; |
| |
| |
| import org.apache.jena.graph.Graph ; |
| import org.apache.jena.graph.GraphUtil ; |
| import org.apache.jena.graph.Node ; |
| import org.apache.jena.sparql.core.DatasetGraph ; |
| |
| /** |
| * General implementation of operations for the SPARQL HTTP Update protocol |
| * over a DatasetGraph. |
| /** @deprecated This will be replaced by the {@code RDFConnection} style at the Graph/Triple level. */ |
| @Deprecated |
| public class DatasetGraphAccessorBasic implements DatasetGraphAccessor |
| { |
| private DatasetGraph dataset ; |
| |
| public DatasetGraphAccessorBasic(DatasetGraph dataset) |
| { |
| this.dataset = dataset ; |
| } |
| |
| @Override |
| public Graph httpGet() { return dataset.getDefaultGraph() ; } |
| |
| @Override |
| public Graph httpGet(Node graphName) { return dataset.getGraph(graphName) ; } |
| |
| @Override |
| public boolean httpHead() { return true ; } |
| |
| @Override |
| public boolean httpHead(Node graphName) { return dataset.containsGraph(graphName) ; } |
| |
| @Override |
| public void httpPut(Graph data) { |
| putGraph(dataset.getDefaultGraph(), data) ; |
| } |
| |
| @Override |
| public void httpPut(Node graphName, Graph data) { |
| Graph ng = dataset.getGraph(graphName) ; |
| if ( ng == null ) |
| dataset.addGraph(graphName, ng) ; |
| else |
| putGraph(ng, data) ; |
| } |
| |
| @Override |
| public void httpDelete() { |
| clearGraph(dataset.getDefaultGraph()) ; |
| } |
| |
| @Override |
| public void httpDelete(Node graphName) { |
| Graph ng = dataset.getGraph(graphName) ; |
| if ( ng == null ) |
| return ; |
| dataset.removeGraph(graphName) ; |
| // clearGraph(ng) ; |
| } |
| |
| @Override |
| public void httpPost(Graph data) { |
| mergeGraph(dataset.getDefaultGraph(), data) ; |
| } |
| |
| @Override |
| public void httpPost(Node graphName, Graph data) { |
| Graph ng = dataset.getGraph(graphName) ; |
| if ( ng == null ) { |
| dataset.addGraph(graphName, data) ; |
| return ; |
| } |
| mergeGraph(ng, data) ; |
| } |
| |
| @Override |
| public void httpPatch(Graph data) { httpPost(data) ; } |
| |
| @Override |
| public void httpPatch(Node graphName, Graph data) { httpPost(graphName, data) ;} |
| |
| private void putGraph(Graph destGraph, Graph data) { |
| clearGraph(destGraph) ; |
| mergeGraph(destGraph, data) ; |
| } |
| |
| private void clearGraph(Graph graph) { |
| if ( !graph.isEmpty() ) |
| graph.clear() ; |
| } |
| |
| private void mergeGraph(Graph graph, Graph data) { |
| GraphUtil.addInto(graph, data) ; |
| } |
| |
| } |