01: /*
02: * $Id: NestedMessagesTag.java 471754 2006-11-06 14:55:09Z husted $
03: *
04: * Licensed to the Apache Software Foundation (ASF) under one
05: * or more contributor license agreements. See the NOTICE file
06: * distributed with this work for additional information
07: * regarding copyright ownership. The ASF licenses this file
08: * to you under the Apache License, Version 2.0 (the
09: * "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.struts.taglib.nested.html;
22:
23: import org.apache.struts.taglib.html.MessagesTag;
24: import org.apache.struts.taglib.nested.NestedPropertyHelper;
25: import org.apache.struts.taglib.nested.NestedPropertySupport;
26:
27: import javax.servlet.http.HttpServletRequest;
28: import javax.servlet.jsp.JspException;
29:
30: /**
31: * NestedMessagesTag.
32: *
33: * @version $Rev: 471754 $ $Date: 2004-10-16 12:38:42 -0400 (Sat, 16 Oct 2004)
34: * $
35: * @since Struts 1.1
36: */
37: public class NestedMessagesTag extends MessagesTag implements
38: NestedPropertySupport {
39: /* the usual private member variables */
40: private String originalName = null;
41: private String originalProperty = null;
42:
43: /**
44: * Overriding method of the heart of the matter. Gets the relative
45: * property and leaves the rest up to the original tag implementation.
46: * Sweet.
47: *
48: * @return int JSP continuation directive. This is in the hands of the
49: * super class.
50: */
51: public int doStartTag() throws JspException {
52: // get the original properties
53: originalName = getName();
54: originalProperty = getProperty();
55:
56: // request
57: HttpServletRequest request = (HttpServletRequest) pageContext
58: .getRequest();
59:
60: // set the properties
61: NestedPropertyHelper.setNestedProperties(request, this );
62:
63: // let the super do it's thing
64: return super .doStartTag();
65: }
66:
67: /**
68: * Complete the processing of the tag. The nested tags here will restore
69: * all the original value for the tag itself and the nesting context.
70: *
71: * @return int to describe the next step for the JSP processor
72: * @throws JspException for the bad things JSP's do
73: */
74: public int doEndTag() throws JspException {
75: // do the super's ending part
76: int i = super .doEndTag();
77:
78: // reset the properties
79: setName(originalName);
80: setProperty(originalProperty);
81:
82: // continue
83: return i;
84: }
85:
86: /**
87: * Release the tag's resources and reset the values.
88: */
89: public void release() {
90: super .release();
91:
92: // reset the originals
93: originalName = null;
94: originalProperty = null;
95: }
96: }
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