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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.portlets.rpad.portlet;
18  
19  import java.io.IOException;
20  
21  import javax.portlet.ActionRequest;
22  import javax.portlet.ActionResponse;
23  import javax.portlet.PortletConfig;
24  import javax.portlet.PortletContext;
25  import javax.portlet.PortletException;
26  import javax.portlet.RenderRequest;
27  import javax.portlet.RenderResponse;
28  
29  import org.apache.commons.logging.Log;
30  import org.apache.commons.logging.LogFactory;
31  import org.apache.jetspeed.portlets.rpad.RPADException;
32  import org.apache.jetspeed.portlets.rpad.RepositoryManager;
33  import org.apache.portals.bridges.portletfilter.PortletFilter;
34  import org.apache.portals.bridges.portletfilter.PortletFilterChain;
35  import org.apache.portals.bridges.portletfilter.PortletFilterConfig;
36  
37  public class RPADPortletFilter implements PortletFilter
38  {
39      /***
40       * Logger for this class
41       */
42      private static final Log log = LogFactory.getLog(RPADPortletFilter.class);
43  
44      protected final static String CONFIG_FILE = "config-file";
45  
46      protected final static String DEFAULT_CONFIG_FILE = "/WEB-INF/rpad-config.xml";
47  
48      protected final static String WEBAPP_ROOT_PREFIX = "${webapp}";
49  
50      public void destroy()
51      {
52          try
53          {
54              RepositoryManager.getInstance().store();
55          }
56          catch (RPADException e)
57          {
58              log.error("Could not store the configuration.", e);
59          }
60      }
61  
62      public void init(PortletFilterConfig filterConfig) throws PortletException
63      {
64          PortletConfig portletConfig = filterConfig.getPortletConfig();
65          PortletContext portletContext = portletConfig.getPortletContext();
66          String configFile = portletConfig.getInitParameter(CONFIG_FILE);
67          if (configFile == null)
68          {
69              configFile = portletContext.getRealPath(DEFAULT_CONFIG_FILE);
70          }
71          else if (configFile.startsWith(WEBAPP_ROOT_PREFIX))
72          {
73              configFile = portletContext.getRealPath(configFile
74                      .substring(WEBAPP_ROOT_PREFIX.length()));
75          }
76  
77          if (log.isDebugEnabled())
78          {
79              log.debug("init(PortletConfig) - configFile=" + configFile);
80          }
81  
82          // Create RepositoryManager
83          try
84          {
85              RepositoryManager.init(configFile);
86          }
87          catch (Exception e)
88          {
89              throw new PortletException(
90                      "Could not create RepositoryManager. The config file is "
91                              + configFile, e);
92          }
93      }
94  
95      public void processActionFilter(ActionRequest request,
96              ActionResponse response, PortletFilterChain chain)
97              throws PortletException, IOException
98      {
99          chain.processActionFilter(request, response);
100     }
101 
102     public void renderFilter(RenderRequest request, RenderResponse response,
103             PortletFilterChain chain) throws PortletException, IOException
104     {
105         chain.renderFilter(request, response);
106     }
107 
108 }