| /* |
| * 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.ttl.turtle; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.jena.graph.Node ; |
| import org.apache.jena.graph.NodeFactory ; |
| |
| /** Map from _:* form to bNodes |
| */ |
| |
| public class LabelToNodeMap |
| { |
| Map<String, Node> bNodeLabels = new HashMap<>() ; |
| |
| public LabelToNodeMap() |
| {} |
| |
| public Node asNode(String label) |
| { |
| Node n = bNodeLabels.get(label) ; |
| if ( n != null ) |
| return n ; |
| n = allocNode() ; |
| bNodeLabels.put(label, n) ; |
| return n ; |
| } |
| |
| public Node allocNode() |
| { |
| return NodeFactory.createBlankNode() ; |
| } |
| |
| public void clear() |
| { |
| bNodeLabels.clear() ; |
| } |
| } |