| /* |
| |
| 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.batik.svggen; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * Generates id for an arbitrary number of prefix |
| * |
| * @author <a href="mailto:cjolif@ilog.fr">Christophe Jolif</a> |
| * @author <a href="mailto:vincent.hardy@eng.sun.com">Vincent Hardy</a> |
| * @version $Id$ |
| */ |
| public class SVGIDGenerator { |
| private Map prefixMap = new HashMap(); |
| |
| public SVGIDGenerator() { |
| } |
| |
| /** |
| * Generates an id for the given prefix. This class keeps |
| * track of all invocations to that it generates unique ids |
| * |
| * @param prefix defines the prefix for which the id should |
| * be generated. |
| * @return a value of the form <prefix><n> |
| */ |
| public String generateID(String prefix) { |
| Integer maxId = (Integer)prefixMap.get(prefix); |
| if (maxId == null) { |
| maxId = new Integer(0); |
| prefixMap.put(prefix, maxId); |
| } |
| |
| maxId = new Integer(maxId.intValue()+1); |
| prefixMap.put(prefix, maxId); |
| return prefix + maxId; |
| } |
| } |