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.ui;
24  
25  import com.liferay.portal.kernel.util.MethodInvoker;
26  import com.liferay.portal.kernel.util.MethodWrapper;
27  import com.liferay.portal.kernel.util.PortalClassLoaderUtil;
28  import com.liferay.portal.kernel.util.StringPool;
29  
30  import javax.servlet.jsp.JspException;
31  import javax.servlet.jsp.PageContext;
32  import javax.servlet.jsp.tagext.TagSupport;
33  
34  import org.apache.commons.logging.Log;
35  import org.apache.commons.logging.LogFactory;
36  
37  /**
38   * <a href="InputPermissionsParamsTag.java.html"><b><i>View Source</i></b></a>
39   *
40   * @author Brian Wing Shun Chan
41   * @author Jorge Ferrer
42   *
43   */
44  public class InputPermissionsParamsTag extends TagSupport {
45  
46      public static String doTag(
47              String modelName, PageContext pageContext)
48          throws Exception {
49  
50          Object returnObj = null;
51  
52          Thread currentThread = Thread.currentThread();
53  
54          ClassLoader contextClassLoader = currentThread.getContextClassLoader();
55  
56          try {
57              currentThread.setContextClassLoader(
58                  PortalClassLoaderUtil.getClassLoader());
59  
60              MethodWrapper methodWrapper = new MethodWrapper(
61                  _TAG_CLASS, _TAG_DO_END_METHOD,
62                  new Object[] {modelName, pageContext}
63              );
64  
65              returnObj = MethodInvoker.invoke(methodWrapper);
66          }
67          catch (Exception e) {
68              _log.error(e, e);
69          }
70          finally {
71              currentThread.setContextClassLoader(contextClassLoader);
72          }
73  
74          if (returnObj != null) {
75              return returnObj.toString();
76          }
77          else {
78              return StringPool.BLANK;
79          }
80      }
81  
82      public int doEndTag() throws JspException {
83          try {
84              doTag(_modelName, pageContext);
85          }
86          catch (Exception e) {
87              if (e instanceof JspException) {
88                  throw (JspException)e;
89              }
90              else {
91                  throw new JspException(e);
92              }
93          }
94  
95          return EVAL_PAGE;
96      }
97  
98      public void setModelName(String modelName) {
99          _modelName = modelName;
100     }
101 
102     private static final String _TAG_CLASS =
103         "com.liferay.portal.servlet.taglib.ui.InputPermissionsParamsTagUtil";
104 
105     private static final String _TAG_DO_END_METHOD = "doEndTag";
106 
107     private static Log _log = LogFactory.getLog(
108         InputPermissionsParamsTag.class);
109 
110     private String _modelName;
111 
112 }