1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * The contents of this file are subject to the terms of the Liferay Enterprise
5    * Subscription License ("License"). You may not use this file except in
6    * compliance with the License. You can obtain a copy of the License by
7    * contacting Liferay, Inc. See the License for the specific language governing
8    * permissions and limitations under the License, including but not limited to
9    * distribution rights of the Software.
10   *
11   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
12   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
14   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
15   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
16   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17   * SOFTWARE.
18   */
19  
20  package com.liferay.taglib.portlet;
21  
22  import com.liferay.portal.kernel.util.MethodInvoker;
23  import com.liferay.portal.kernel.util.MethodWrapper;
24  import com.liferay.portal.kernel.util.PortalClassLoaderUtil;
25  
26  import javax.servlet.jsp.JspException;
27  import javax.servlet.jsp.tagext.TagSupport;
28  
29  /**
30   * <a href="DefineObjectsTag.java.html"><b><i>View Source</i></b></a>
31   *
32   * @author Brian Wing Shun Chan
33   *
34   */
35  public class DefineObjectsTag extends TagSupport {
36  
37      public int doStartTag() throws JspException {
38          Thread currentThread = Thread.currentThread();
39  
40          ClassLoader contextClassLoader = currentThread.getContextClassLoader();
41  
42          try {
43              currentThread.setContextClassLoader(
44                  PortalClassLoaderUtil.getClassLoader());
45  
46              MethodWrapper methodWrapper = new MethodWrapper(
47                  _TAG_CLASS, _TAG_DO_START_METHOD, new Object[] {pageContext});
48  
49              MethodInvoker.invoke(methodWrapper);
50          }
51          catch (Exception e) {
52              throw new JspException(e);
53          }
54          finally {
55              currentThread.setContextClassLoader(contextClassLoader);
56          }
57  
58          return SKIP_BODY;
59      }
60  
61      public int doEndTag() {
62          return EVAL_PAGE;
63      }
64  
65      private static final String _TAG_CLASS =
66          "com.liferay.portal.servlet.taglib.portlet.DefineObjectsTagUtil";
67  
68      private static final String _TAG_DO_START_METHOD = "doStartTag";
69  
70  }