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1   /*
2    * $Id: IteratorTag.java 451544 2006-09-30 05:38:02Z mrdon $
3    *
4    * Copyright 2006 The Apache Software Foundation.
5    *
6    * Licensed under the Apache License, Version 2.0 (the "License");
7    * you may not use this file except in compliance with the License.
8    * You may obtain a copy of the License at
9    *
10   *      http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  package org.apache.struts2.views.jsp;
19  
20  import javax.servlet.http.HttpServletRequest;
21  import javax.servlet.http.HttpServletResponse;
22  import javax.servlet.jsp.JspException;
23  
24  import org.apache.struts2.components.Component;
25  import org.apache.struts2.components.IteratorComponent;
26  
27  import com.opensymphony.xwork2.util.ValueStack;
28  
29  /***
30   * @see IteratorComponent
31   */
32  public class IteratorTag extends ComponentTagSupport {
33  
34  	private static final long serialVersionUID = -1827978135193581901L;
35  	
36  	protected String statusAttr;
37      protected String value;
38  
39      public Component getBean(ValueStack stack, HttpServletRequest req, HttpServletResponse res) {
40          return new IteratorComponent(stack);
41      }
42  
43      protected void populateParams() {
44      	super.populateParams();
45      	
46          IteratorComponent tag = (IteratorComponent) getComponent();
47          tag.setStatus(statusAttr);
48          tag.setValue(value);
49      }
50  
51      public void setStatus(String status) {
52          this.statusAttr = status;
53      }
54  
55      public void setValue(String value) {
56          this.value = value;
57      }
58  
59      public int doEndTag() throws JspException {
60          component = null;
61          return EVAL_PAGE;
62      }
63  
64      public int doAfterBody() throws JspException {
65          boolean again = component.end(pageContext.getOut(), getBody());
66  
67          if (again) {
68              return EVAL_BODY_AGAIN;
69          } else {
70              if (bodyContent != null) {
71                  try {
72                      bodyContent.writeOut(bodyContent.getEnclosingWriter());
73                  } catch (Exception e) {
74                      throw new JspException(e.getMessage());
75                  }
76              }
77              return SKIP_BODY;
78          }
79      }
80  
81  }