1   /**
2    * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.taglib.security;
24  
25  import com.liferay.portal.kernel.util.BooleanWrapper;
26  import com.liferay.portal.kernel.util.MethodInvoker;
27  import com.liferay.portal.kernel.util.MethodWrapper;
28  import com.liferay.portal.kernel.util.NullWrapper;
29  import com.liferay.portal.kernel.util.PortalClassLoaderUtil;
30  import com.liferay.portal.kernel.util.StringPool;
31  
32  import javax.servlet.jsp.JspException;
33  import javax.servlet.jsp.PageContext;
34  import javax.servlet.jsp.tagext.TagSupport;
35  
36  import org.apache.commons.logging.Log;
37  import org.apache.commons.logging.LogFactory;
38  
39  /**
40   * <a href="PermissionsURLTag.java.html"><b><i>View Source</i></b></a>
41   *
42   * @author Brian Wing Shun Chan
43   *
44   */
45  public class PermissionsURLTag extends TagSupport {
46  
47      public static String doTag(
48              String redirect, String modelResource,
49              String modelResourceDescription, String resourcePrimKey, String var,
50              boolean writeOutput, PageContext pageContext)
51          throws Exception {
52  
53          Object returnObj = null;
54  
55          Thread currentThread = Thread.currentThread();
56  
57          ClassLoader contextClassLoader = currentThread.getContextClassLoader();
58  
59          try {
60              currentThread.setContextClassLoader(
61                  PortalClassLoaderUtil.getClassLoader());
62  
63              Object redirectWrapper = redirect;
64  
65              if (redirectWrapper == null) {
66                  redirectWrapper = new NullWrapper(String.class.getName());
67              }
68  
69              Object varWrapper = var;
70  
71              if (varWrapper == null) {
72                  varWrapper = new NullWrapper(String.class.getName());
73              }
74  
75              MethodWrapper methodWrapper = new MethodWrapper(
76                  _TAG_CLASS, _TAG_DO_END_METHOD,
77                  new Object[] {
78                      redirectWrapper, modelResource, modelResourceDescription,
79                      resourcePrimKey, varWrapper,
80                      new BooleanWrapper(writeOutput), pageContext
81                  });
82  
83              returnObj = MethodInvoker.invoke(methodWrapper);
84          }
85          catch (Exception e) {
86              _log.error(e, e);
87          }
88          finally {
89              currentThread.setContextClassLoader(contextClassLoader);
90          }
91  
92          if (returnObj != null) {
93              return returnObj.toString();
94          }
95          else {
96              return StringPool.BLANK;
97          }
98      }
99  
100     public int doEndTag() throws JspException {
101         try {
102             doTag(
103                 _redirect, _modelResource, _modelResourceDescription,
104                 _resourcePrimKey, _var, true, pageContext);
105         }
106         catch (Exception e) {
107             if (e instanceof JspException) {
108                 throw (JspException)e;
109             }
110             else {
111                 throw new JspException(e);
112             }
113         }
114 
115         return EVAL_PAGE;
116     }
117 
118     public void setRedirect(String redirect) {
119         _redirect = redirect;
120     }
121 
122     public void setModelResource(String modelResource) {
123         _modelResource = modelResource;
124     }
125 
126     public void setModelResourceDescription(String modelResourceDescription) {
127         _modelResourceDescription = modelResourceDescription;
128     }
129 
130     public void setResourcePrimKey(String resourcePrimKey) {
131         _resourcePrimKey = resourcePrimKey;
132     }
133 
134     public void setVar(String var) {
135         _var = var;
136     }
137 
138     private static final String _TAG_CLASS =
139         "com.liferay.portal.servlet.taglib.security.PermissionsURLTagUtil";
140 
141     private static final String _TAG_DO_END_METHOD = "doEndTag";
142 
143     private static Log _log = LogFactory.getLog(PermissionsURLTag.class);
144 
145     private String _redirect;
146     private String _modelResource;
147     private String _modelResourceDescription;
148     private String _resourcePrimKey;
149     private String _var;
150 
151 }