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1
64
65 package com.jcorporate.expresso.ext.taglib;
66
67
72
73 import com.jcorporate.expresso.core.ExpressoConstants;
74 import com.jcorporate.expresso.core.controller.ControllerResponse;
75 import org.apache.log4j.Logger;
76
77 import javax.servlet.jsp.JspException  ;
78 import javax.servlet.jsp.PageContext ;
79 import javax.servlet.jsp.tagext.Tag ;
80 import javax.servlet.jsp.tagext.TagSupport ;
81
82
83
86 public abstract class ExpressoTagSupport
87 extends TagSupport {
88 protected ControllerResponse ctlrResp = null;
89 protected java.lang.String response = null;
90 private static Logger log = Logger.getLogger(ExpressoTagSupport.class);
91
92 public ExpressoTagSupport() {
93 super();
94 }
95
96 protected TagSupport getAncestor(String className)
97 throws JspException {
98 Class klass = null;
99
100 try {
101 klass = Class.forName(className);
102 } catch (ClassNotFoundException ex) {
103 log.error("No such class '" + className + "'", ex);
104 throw new JspException (ex.getMessage());
105 }
106
107 return (TagSupport ) findAncestorWithClass(this, klass);
108 }
109
110 protected Tag getContainer()
111 throws JspException {
112 Tag parent = this;
113
114 while ((parent = parent.getParent()) != null) {
115 if ((parent instanceof BlockTag) ||
116 (parent instanceof ElementIterator) ||
117 (parent instanceof OutputTag)) {
118 return parent;
119 }
120 }
121
122 return null;
123 }
124
125 protected void getControllerResponse() {
126 if (response == null || response.length() == 0) {
127 response = ExpressoConstants.CONTROLLER_RESPONSE_KEY;
128 }
129
130 ctlrResp = (ControllerResponse) pageContext.getAttribute(response,
131 PageContext.REQUEST_SCOPE);
132 }
133
134 public java.lang.String getResponse() {
135 return response;
136 }
137
138 public void setResponse(java.lang.String newResponse) {
139 response = newResponse;
140 }
141 }
142
143 |
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