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1   /*
2    * $Id: ServletPortletPreferences.java 651946 2008-04-27 13:41:38Z apetrelli $
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  
22  package org.apache.struts2.portlet.interceptor;
23  
24  import java.io.IOException;
25  import java.util.Enumeration;
26  import java.util.HashMap;
27  import java.util.Map;
28  import java.util.Vector;
29  
30  import javax.portlet.PortletPreferences;
31  import javax.portlet.ReadOnlyException;
32  import javax.portlet.ValidatorException;
33  
34  /***
35   * Simple portlet preferences implementation that uses a map in the Session
36   * as storage.
37   */
38  public class ServletPortletPreferences implements PortletPreferences {
39  
40      private Map session;
41      private String PREFERENCES_KEY = "_portlet-preferences";
42      
43      public ServletPortletPreferences(Map session) {
44          this.session = session;
45      }
46      
47      public Map getMap() {
48          Map map = (Map) session.get(PREFERENCES_KEY);
49          if (map == null) {
50              map = new HashMap();
51              session.put(PREFERENCES_KEY, map);
52          }
53          return map;
54      }
55  
56      public Enumeration getNames() {
57          return new Vector(getMap().keySet()).elements();
58      }
59  
60      public String getValue(String key, String def) {
61          String val = (String) getMap().get(key);
62          if (val == null) {
63              val = def;
64          }
65          return val;
66      }
67  
68      public String[] getValues(String key, String[] def) {
69          String[] val = (String[]) getMap().get(key);
70          if (val == null) {
71              val = def;
72          }
73          return val;
74      }
75  
76      public boolean isReadOnly(String arg0) {
77          return false;
78      }
79  
80      public void reset(String arg0) throws ReadOnlyException {
81          session.put(PREFERENCES_KEY, new HashMap());
82      }
83  
84      public void setValue(String key, String value) throws ReadOnlyException {
85          getMap().put(key, value);
86      }
87  
88      public void setValues(String key, String[] value) throws ReadOnlyException {
89          getMap().put(key, value);
90      }
91  
92      public void store() throws IOException, ValidatorException {
93          
94      }
95  
96  }