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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.portals.bridges.util;
18  
19  import java.util.Iterator;
20  import java.util.Map;
21  
22  import javax.portlet.ActionRequest;
23  import javax.portlet.PortletException;
24  import javax.portlet.PortletPreferences;
25  
26  
27  /***
28   * PreferencesHelper
29   * 
30   * @author <a href="mailto:taylor@apache.org">David Sean Taylor</a>
31   * @version $Id: PreferencesHelper.java 517068 2007-03-12 01:44:37Z ate $
32   */
33  public class PreferencesHelper
34  {
35      static public void requestParamsToPreferences(ActionRequest request) 
36          throws PortletException
37      {
38          Map params = request.getParameterMap();
39          PortletPreferences prefs = request.getPreferences();
40          Map prefsMap = prefs.getMap();
41  
42          try
43          {
44              Iterator it = params.entrySet().iterator();
45              while (it.hasNext())
46              {
47                  Map.Entry entry = (Map.Entry) it.next();
48                  Object value = entry.getValue();
49                  String key = (String) entry.getKey();
50                  if (null == prefsMap.get(key))
51                  {
52                      continue;
53                  }
54                  if (value instanceof String)
55                  {
56                      prefs.setValue(key, (String)value);
57                  }
58                  else if (value instanceof String[])
59                  {
60                      prefs.setValue(key, ((String[]) value)[0]);
61                  }
62              }
63          }
64          catch (Exception e)
65          {
66              throw new PortletException("Exception mapping request Params to Preferences: ", e);
67          }
68      }
69  
70  }