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Java > Open Source Codes > com > jcorporate > expresso > ext > taglib > IfErrorExists


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64
65 package com.jcorporate.expresso.ext.taglib;
66
67 import com.jcorporate.expresso.core.controller.ErrorCollection;
68
69 import javax.servlet.jsp.JspTagException JavaDoc;
70 import javax.servlet.jsp.PageContext JavaDoc;
71
72
73 /**
74  * @author Shash Chatterjee
75  */

76 public class IfErrorExists
77         extends ExpressoTagSupport {
78     private ErrorCollection errorCollection = null;
79     private java.lang.String JavaDoc name = null;
80     private java.lang.String JavaDoc nameToUse = null;
81
82     public IfErrorExists() {
83         super();
84     }
85
86     public int doEndTag()
87             throws javax.servlet.jsp.JspTagException JavaDoc {
88         return EVAL_PAGE;
89     }
90
91     public int doStartTag()
92             throws javax.servlet.jsp.JspTagException JavaDoc {
93         nameToUse = name;
94
95         try {
96             if (nameToUse == null || "".equals(nameToUse)) {
97                 nameToUse = ErrorCollection.ERRORCOLLECTIONKEY;
98             }
99
100             errorCollection = (ErrorCollection) pageContext.getAttribute(nameToUse, PageContext.REQUEST_SCOPE);
101
102             if (errorCollection == null) {
103                 errorCollection = (ErrorCollection) pageContext.getAttribute(nameToUse, PageContext.SESSION_SCOPE);
104             }
105
106             if (errorCollection != null) {
107                 if (errorCollection.getErrorCount() > 0) {
108                     return EVAL_BODY_INCLUDE;
109                 }
110             }
111         } catch (Exception JavaDoc e) {
112             throw new JspTagException JavaDoc("IfErrorExists Tag Error: " +
113                     e.getMessage());
114         }
115
116         return SKIP_BODY;
117     }
118
119     public java.lang.String JavaDoc getName() {
120         return nameToUse;
121     }
122
123     public void setName(java.lang.String JavaDoc newName) {
124         name = newName;
125     }
126 } /* IfErrorExists */
127
128 /* IfErrorExists */
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