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PortletRequestDelegate xref
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1   /*
2    * $Id: PortletRequestDelegate.java 1066849 2011-02-03 16:12:39Z 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  package org.apache.tiles.request.portlet.delegate;
22  
23  import java.util.Map;
24  
25  import javax.portlet.PortletRequest;
26  
27  import org.apache.tiles.request.collection.ReadOnlyEnumerationMap;
28  import org.apache.tiles.request.portlet.extractor.ParameterExtractor;
29  
30  /**
31   * Request delegate in case of simple Portlet request.
32   *
33   * @version $Rev: 1066849 $ $Date: 2011-02-04 03:12:39 +1100 (Fri, 04 Feb 2011) $
34   */
35  public class PortletRequestDelegate implements RequestDelegate {
36  
37      /**
38       * The request.
39       */
40      private PortletRequest request;
41  
42      /**
43       * <p>The lazily instantiated <code>Map</code> of request
44       * parameter name-value.</p>
45       */
46      private Map<String, String> param = null;
47  
48      /**
49       * <p>The lazily instantiated <code>Map</code> of request
50       * parameter name-values.</p>
51       */
52      private Map<String, String[]> paramValues = null;
53  
54      /**
55       * Constructor.
56       *
57       * @param request The request.
58       */
59      public PortletRequestDelegate(PortletRequest request) {
60          this.request = request;
61      }
62  
63      /** {@inheritDoc} */
64      public Map<String, String> getParam() {
65          if ((param == null) && (request != null)) {
66              param = new ReadOnlyEnumerationMap<String>(new ParameterExtractor(request));
67          }
68          return (param);
69      }
70  
71      /** {@inheritDoc} */
72      public Map<String, String[]> getParamValues() {
73          if ((paramValues == null) && (request != null)) {
74              paramValues = request.getParameterMap();
75          }
76          return (paramValues);
77      }
78  }