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1   /*
2    * Copyright 2003,2004 The Apache Software Foundation.
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * 
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    * 
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  /* 
17  
18   */
19  
20  package org.apache.pluto.util.impl;
21  
22  import org.apache.pluto.om.common.ObjectID;
23  import org.apache.pluto.util.NamespaceMapper;
24  
25  /***
26   **/
27  
28  public class NamespaceMapperImpl implements NamespaceMapper
29  {
30      public NamespaceMapperImpl()
31      {
32      }
33  
34      // org.apache.pluto.util.NamespaceMapper implementation ---------------------------------------
35      public String encode(ObjectID ns, String name)
36      {
37          StringBuffer buffer = new StringBuffer(50);
38          buffer.append("Pluto_");
39          buffer.append(ns);
40          buffer.append('_');
41          buffer.append(name);
42          return buffer.toString();
43      }
44  
45      public String encode(ObjectID ns1, ObjectID ns2, String name)
46      {
47          StringBuffer buffer = new StringBuffer(50);
48          buffer.append("Pluto_");
49          buffer.append(ns1);
50          buffer.append('_');
51          buffer.append(ns2);
52          buffer.append('_');
53          buffer.append(name);
54          return buffer.toString();
55      }
56  
57      public String decode(ObjectID ns, String name)
58      {
59          if (!name.startsWith("Pluto_"))
60          {
61              return null;
62          }
63          StringBuffer buffer = new StringBuffer(50);
64          buffer.append("Pluto_");
65          buffer.append(ns);
66          buffer.append('_');
67          if (!name.startsWith(buffer.toString()))
68          {
69              return null;
70          }
71          return name.substring(buffer.length());
72      }
73      // --------------------------------------------------------------------------------------------
74  }