HybridNavigationalState xref

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1   /*
2   * Licensed to the Apache Software Foundation (ASF) under one or more
3   * contributor license agreements.  See the NOTICE file distributed with
4   * this work for additional information regarding copyright ownership.
5   * The ASF licenses this file to You under the Apache License, Version 2.0
6   * (the "License"); you may not use this file except in compliance with
7   * the License.  You may obtain a copy of the License at
8   *
9   *     http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17  package org.apache.jetspeed.container.state.impl;
18  
19  import java.io.UnsupportedEncodingException;
20  import java.util.HashMap;
21  import java.util.Iterator;
22  import java.util.Map;
23  
24  import javax.portlet.PortletMode;
25  import javax.portlet.WindowState;
26  
27  import org.apache.jetspeed.cache.JetspeedContentCache;
28  import org.apache.pluto.om.window.PortletWindow;
29  
30  /***
31   * HybridNavigationalState
32   * 
33   * Only encodes render parameters that start with a given prefix
34   *
35   * @author <a href="mailto:taylor@apache.org">David Sean Taylor</a>
36   * @version $Id: AbstractNavigationalState.java 333093 2005-11-13 18:42:42Z taylor $
37   */
38  public class HybridNavigationalState extends SessionNavigationalState
39  {
40      protected String prefix;
41      
42      public HybridNavigationalState(NavigationalStateCodec codec, String prefix, JetspeedContentCache cache)
43      {
44          super(codec, cache);
45          this.prefix = prefix;
46      }
47      
48      public String encode(PortletWindow window, Map parameters, PortletMode mode, WindowState state, boolean action)
49      throws UnsupportedEncodingException
50      {
51          Map subset = new HashMap();
52          Iterator params = parameters.keySet().iterator();
53          while (params.hasNext())
54          {
55              String key = (String)params.next();
56              if (key.startsWith(prefix))
57              {
58                  // only encode params that start with prefix
59                  subset.put(key, parameters.get(key));
60              }
61          }
62          return super.encode(window, subset, mode, state, action);
63      }
64  
65      public boolean isNavigationalParameterStateFull()
66      {
67          return true;
68      }
69  
70      public boolean isRenderParameterStateFull()
71      {
72          return false;
73      }
74      
75      
76  }