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Java > Open Source Codes > org > xquark > util > DefaultXMLNameFactory


1 /*
2  * This file belongs to the XQuark distribution.
3  * Copyright (C) 2003 Universite de Versailles Saint-Quentin.
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2.1 of the License, or (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  * Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public
16  * License along with this program; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307.
18  * You can also get it at http://www.gnu.org/licenses/lgpl.html
19  *
20  * For more information on this software, see http://www.xquark.org.
21  */
22
23 package org.xquark.util;
24
25 import java.util.HashMap JavaDoc;
26
27 public class DefaultXMLNameFactory {
28 private static final String JavaDoc RCSRevision = "$Revision: 1.1 $";
29 private static final String JavaDoc RCSName = "$Name: $";
30
31   private HashMap JavaDoc namespaceMaps = new HashMap JavaDoc();
32   private static DefaultXMLNameFactory instance = new DefaultXMLNameFactory();
33   
34   private DefaultXMLNameFactory() {}
35
36   public static DefaultXMLNameFactory getFactory() { return instance; }
37   
38   public synchronized XMLName createXMLName(String JavaDoc namespace, String JavaDoc name) {
39     HashMap JavaDoc namespaceMap = getNamespaceMap(namespace);
40     XMLName result = (XMLName)namespaceMap.get(name);
41     if (result == null) {
42       result = new XMLNameImpl(namespace, name);
43       namespaceMap.put(name, result);
44     }
45     return result;
46   }
47
48   private HashMap JavaDoc getNamespaceMap(String JavaDoc namespace) {
49     HashMap JavaDoc result = (HashMap JavaDoc)namespaceMaps.get(namespace);
50     if (result == null) {
51       result = new HashMap JavaDoc();
52       namespaceMaps.put(namespace, result);
53     }
54     return result;
55   }
56   
57   private static class XMLNameImpl implements XMLName {
58     private static final String JavaDoc RCSRevision = "$Revision: 1.1 $";
59     private static final String JavaDoc RCSName = "$Name: $";
60     private String JavaDoc name;
61     private String JavaDoc namespace;
62   
63     XMLNameImpl(String JavaDoc namespace, String JavaDoc name) {
64       this.namespace = namespace;
65       this.name = name;
66     }
67   
68     public String JavaDoc getLocalName() { return name; }
69   
70     public String JavaDoc getNamespaceURI() { return namespace; }
71   
72     public boolean equals(Object JavaDoc name) {
73       if (!(name instanceof XMLNameImpl)) return false;
74       return equals((XMLNameImpl)name);
75     }
76     
77     public boolean equals(XMLName name) { return this == name; }
78   }
79 }
80
81
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