1 /*
2 * $Id: StateAwareRequestDelegate.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 import javax.portlet.StateAwareResponse;
27
28 import org.apache.tiles.request.collection.AddableParameterMap;
29 import org.apache.tiles.request.portlet.extractor.StateAwareParameterExtractor;
30
31 /**
32 * Exposes parameters getting them from a portlet reques and allowing to be put
33 * into a {@link StateAwareResponse}.
34 *
35 * @version $Rev: 1066849 $ $Date: 2011-02-04 03:12:39 +1100 (Fri, 04 Feb 2011) $
36 */
37 public class StateAwareRequestDelegate implements RequestDelegate {
38
39 /**
40 * The request.
41 */
42 private PortletRequest request;
43
44 /**
45 * The response.
46 */
47 private StateAwareResponse response;
48
49 /**
50 * Constructor.
51 *
52 * @param request The request.
53 * @param response The response.
54 */
55 public StateAwareRequestDelegate(PortletRequest request,
56 StateAwareResponse response) {
57 this.request = request;
58 this.response = response;
59 }
60
61 /**
62 * <p>The lazily instantiated <code>Map</code> of request
63 * parameter name-value.</p>
64 */
65 private Map<String, String> param = null;
66
67 /**
68 * <p>The lazily instantiated <code>Map</code> of request
69 * parameter name-values.</p>
70 */
71 private Map<String, String[]> paramValues = null;
72
73 /** {@inheritDoc} */
74 public Map<String, String> getParam() {
75 if ((param == null) && (request != null)) {
76 param = new AddableParameterMap(new StateAwareParameterExtractor(
77 request, response));
78 }
79 return (param);
80 }
81
82 /** {@inheritDoc} */
83 public Map<String, String[]> getParamValues() {
84 if ((paramValues == null) && (request != null)) {
85 paramValues = new StateAwareParameterMap(request.getParameterMap(),
86 response.getRenderParameterMap());
87 }
88 return (paramValues);
89 }
90 }