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1   /*
2    * $Id: IteratorTag.java 471756 2006-11-06 15:01:43Z husted $
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.views.jsp;
22  
23  import javax.servlet.http.HttpServletRequest;
24  import javax.servlet.http.HttpServletResponse;
25  import javax.servlet.jsp.JspException;
26  
27  import org.apache.struts2.components.Component;
28  import org.apache.struts2.components.IteratorComponent;
29  
30  import com.opensymphony.xwork2.util.ValueStack;
31  
32  /***
33   * @see IteratorComponent
34   */
35  public class IteratorTag extends ComponentTagSupport {
36  
37      private static final long serialVersionUID = -1827978135193581901L;
38  
39      protected String statusAttr;
40      protected String value;
41  
42      public Component getBean(ValueStack stack, HttpServletRequest req, HttpServletResponse res) {
43          return new IteratorComponent(stack);
44      }
45  
46      protected void populateParams() {
47          super.populateParams();
48  
49          IteratorComponent tag = (IteratorComponent) getComponent();
50          tag.setStatus(statusAttr);
51          tag.setValue(value);
52      }
53  
54      public void setStatus(String status) {
55          this.statusAttr = status;
56      }
57  
58      public void setValue(String value) {
59          this.value = value;
60      }
61  
62      public int doEndTag() throws JspException {
63          component = null;
64          return EVAL_PAGE;
65      }
66  
67      public int doAfterBody() throws JspException {
68          boolean again = component.end(pageContext.getOut(), getBody());
69  
70          if (again) {
71              return EVAL_BODY_AGAIN;
72          } else {
73              if (bodyContent != null) {
74                  try {
75                      bodyContent.writeOut(bodyContent.getEnclosingWriter());
76                  } catch (Exception e) {
77                      throw new JspException(e.getMessage());
78                  }
79              }
80              return SKIP_BODY;
81          }
82      }
83  
84  }