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1   /*
2    * $Id: ServletPortletPreferences.java 502294 2007-02-01 17:28:00Z niallp $
3    *
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *  http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  package org.apache.struts2.portlet.interceptor;
22  
23  import java.io.IOException;
24  import java.util.Enumeration;
25  import java.util.HashMap;
26  import java.util.Map;
27  import java.util.Vector;
28  
29  import javax.portlet.PortletPreferences;
30  import javax.portlet.ReadOnlyException;
31  import javax.portlet.ValidatorException;
32  
33  /***
34   * Simple portlet preferences implementation that uses a map in the Session
35   * as storage.
36   */
37  public class ServletPortletPreferences implements PortletPreferences {
38  
39      private Map session;
40      private String PREFERENCES_KEY = "_portlet-preferences";
41      
42      public ServletPortletPreferences(Map session) {
43          this.session = session;
44      }
45      
46      public Map getMap() {
47          Map map = (Map) session.get(PREFERENCES_KEY);
48          if (map == null) {
49              map = new HashMap();
50              session.put(PREFERENCES_KEY, map);
51          }
52          return map;
53      }
54  
55      public Enumeration getNames() {
56          return new Vector(getMap().keySet()).elements();
57      }
58  
59      public String getValue(String key, String def) {
60          String val = (String) getMap().get(key);
61          if (val == null) {
62              val = def;
63          }
64          return val;
65      }
66  
67      public String[] getValues(String key, String[] def) {
68          String[] val = (String[]) getMap().get(key);
69          if (val == null) {
70              val = def;
71          }
72          return val;
73      }
74  
75      public boolean isReadOnly(String arg0) {
76          return false;
77      }
78  
79      public void reset(String arg0) throws ReadOnlyException {
80          session.put(PREFERENCES_KEY, new HashMap());
81      }
82  
83      public void setValue(String key, String value) throws ReadOnlyException {
84          getMap().put(key, value);
85      }
86  
87      public void setValues(String key, String[] value) throws ReadOnlyException {
88          getMap().put(key, value);
89      }
90  
91      public void store() throws IOException, ValidatorException {
92          
93      }
94  
95  }