1 /*
2 * $Id: URLBean.java 495509 2007-01-12 07:50:25Z mrdon $
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.struts2.util;
22
23 import java.util.HashMap;
24 import java.util.Map;
25
26 import javax.servlet.http.HttpServletRequest;
27 import javax.servlet.http.HttpServletResponse;
28
29 import org.apache.struts2.views.util.UrlHelper;
30
31
32 /***
33 * A bean that can generate a URL.
34 *
35 */
36 public class URLBean {
37
38 HashMap params;
39 HttpServletRequest request;
40 HttpServletResponse response;
41 String page;
42
43
44 public URLBean setPage(String page) {
45 this.page = page;
46 return this;
47 }
48
49 public void setRequest(HttpServletRequest request) {
50 this.request = request;
51 }
52
53 public void setResponse(HttpServletResponse response) {
54 this.response = response;
55 }
56
57 public String getURL() {
58 // all this trickier with maps is to reduce the number of objects created
59 Map fullParams = null;
60
61 if (params != null) {
62 fullParams = new HashMap();
63 }
64
65 if (page == null) {
66 // No particular page requested, so go to "same page"
67 // Add query params to parameters
68 if (fullParams != null) {
69 fullParams.putAll(request.getParameterMap());
70 } else {
71 fullParams = request.getParameterMap();
72 }
73 }
74
75 // added parameters override, just like in URLTag
76 if (params != null) {
77 fullParams.putAll(params);
78 }
79
80 return UrlHelper.buildUrl(page, request, response, fullParams);
81 }
82
83 public URLBean addParameter(String name, Object value) {
84 if (params == null) {
85 params = new HashMap();
86 }
87
88 if (value == null) {
89 params.remove(name);
90 } else {
91 params.put(name, value.toString());
92 }
93
94 return this;
95 }
96
97 public String toString() {
98 return getURL();
99 }
100 }