|
1 package org.jahia.taglibs.html.session;
2
3 import java.io.IOException  ;
4 import java.util.Enumeration ;
5 import javax.servlet.http.HttpServletRequest ;
6 import javax.servlet.http.HttpSession ;
7 import javax.servlet.jsp.JspWriter ;
8 import javax.servlet.jsp.tagext.TagSupport ;
9 import java.util.Map ;
10 import java.util.Iterator ;
11 import org.jahia.utils.JahiaTools;
12
13
22
23 public class SessionViewerTag extends TagSupport {
24
25 private static org.apache.log4j.Logger logger =
26 org.apache.log4j.Logger.getLogger(SessionViewerTag.class);
27
28 public SessionViewerTag() {
29 }
30
31 public int doStartTag() {
32
33 try {
34 JspWriter out = pageContext.getOut();
35 HttpServletRequest request = (HttpServletRequest ) pageContext.getRequest();
36 HttpSession session = request.getSession();
37 out.println("<div class=\"session\">");
38 Enumeration attrNameEnum = session.getAttributeNames();
39 if (attrNameEnum.hasMoreElements()) {
40 out.print(getPadding(2));
41 out.println("<ol class=\"attribute\">");
42 out.print(getPadding(4));
43 out.println("<li>Name</li>");
44 out.print(getPadding(4));
45 out.println("<li>Type</li>");
46 out.print(getPadding(4));
47 out.println("<li>Value</li>");
48 out.print(getPadding(2));
49 out.println("</ol>");
50 }
51 while (attrNameEnum.hasMoreElements()) {
52 String curAttrName = (String ) attrNameEnum.nextElement();
53 Object curAttrObject = session.getAttribute(curAttrName);
54 handleAttrDisplay(out, curAttrName, curAttrObject);
55 }
56 out.println("</div>");
57 } catch (IOException ioe) {
58 logger.error("Error while displaying session content", ioe);
59 }
60 return SKIP_BODY;
61 }
62
63
69 private void handleAttrDisplay (JspWriter out, String curAttrName, Object curAttrObject) throws IOException {
70 out.println("<ol class=\"attribute\">");
71 out.print (" <li class=\"name\">");
72 out.print (curAttrName);
73 out.println("</li>");
74 out.print (" <li class=\"type\">");
75 out.print (curAttrObject.getClass().getName());
76 out.println("</li>");
77 out.print (" <li class=\"value\">");
78 if (curAttrObject instanceof Map ) {
79 handleMapDisplay(out, (Map ) curAttrObject, 4);
80 } else {
81 out.print(curAttrObject.toString());
82 }
83 out.println("</li>");
84 out.println("</ol>");
85 }
86
87 private void handleMapDisplay(JspWriter out, Map map, int indent) throws IOException {
88 Iterator entryIter = map.entrySet().iterator();
89 out.print(getPadding(indent));
90 out.println("<div class=\"map\">");
91 if (entryIter.hasNext()) {
92 out.print(getPadding(indent+2));
93 out.println("<ol class=\"entry\">");
94 out.print(getPadding(indent+4));
95 out.print("<li class=\"key\">");
96 out.print("Key");
97 out.println("</li>");
98 out.print(getPadding(indent+4));
99 out.print("<li class=\"key-type\">");
100 out.print("Key type");
101 out.println("</li>");
102 out.print(getPadding(indent+4));
103 out.print("<li class=\"value-type\">");
104 out.print("Value type");
105 out.println("</li>");
106 out.print(getPadding(indent+4));
107 out.print("<li class=\"value\">");
108 out.print("Value");
109 out.println("</li>");
110 out.print(getPadding(indent+2));
111 out.println("</ol>");
112 }
113 while (entryIter.hasNext()) {
114 Map.Entry curEntry = (Map.Entry ) entryIter.next();
115 Object key = curEntry.getKey();
116 Object value = curEntry.getValue();
117 out.print(getPadding(indent+2));
118 out.println("<ol class=\"entry\">");
119 out.print(getPadding(indent+4));
120 out.print("<li class=\"key\">");
121 out.print(key);
122 out.println("</li>");
123 out.print(getPadding(indent+4));
124 out.print("<li class=\"key-type\">");
125 out.print(key.getClass().getName());
126 out.println("</li>");
127 out.print(getPadding(indent+4));
128 out.print("<li class=\"value-type\">");
129 out.print(value.getClass().getName());
130 out.println("</li>");
131 out.print(getPadding(indent+4));
132 out.print("<li class=\"value\">");
133 if (value instanceof Map ) {
134 handleMapDisplay(out, (Map ) value, indent+4);
135 } else {
136 out.print(JahiaTools.text2XMLEntityRef(value.toString(), 0));
137 }
138 out.println("</li>");
139 out.print(getPadding(indent+2));
140 out.println("</ol>");
141 }
142 out.print(getPadding(indent));
143 out.println("</div>");
144 }
145
146 private String getPadding(int indent) {
147 StringBuffer paddingBuf = new StringBuffer (indent);
148 for (int i=0; i < indent; i++) {
149 paddingBuf.append(' ');
150 }
151 return paddingBuf.toString();
152 }
153
154 }
155 |
Popular Tags |
Java API By Example, From Geeks To Geeks.