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1
17
18 package org.apache.geronimo.console.web.taglib;
19
20 import java.io.IOException  ;
21 import java.net.URLDecoder ;
22 import java.util.ArrayList ;
23 import java.util.Collections ;
24 import java.util.Hashtable ;
25 import java.util.List ;
26 import java.util.Set ;
27 import javax.management.MBeanAttributeInfo ;
28 import javax.management.MBeanInfo ;
29 import javax.management.MBeanServer ;
30 import javax.management.MalformedObjectNameException ;
31 import javax.management.ObjectInstance ;
32 import javax.management.ObjectName ;
33 import javax.management.QueryExp ;
34 import javax.servlet.jsp.JspWriter ;
35
36 import org.apache.geronimo.console.web.util.MBeanAttributesComparator;
37
38
42 public final class MBeanAttributesTag
43 extends MBeanServerContextSupport {
44 private Hashtable properties;
45 private MBeanServerContextTag ctx;
46 private ObjectInstance instance;
47 private Object [] keys;
48 private Set keySet;
49 private ObjectName name;
50 private MBeanServer server;
51
52 public int doEndTag() {
53 return EVAL_PAGE;
54 }
55
56 public int doStartTag() {
57 ctx = getMBeanServerContext();
58 server = ctx.getMBeanServer();
59 JspWriter out = pageContext.getOut();
60
61 printMBeanProperties(out);
62 printMBeanAttributes(out);
63
64
65 return EVAL_BODY_INCLUDE;
66 }
67
68
74 private String getDomain() {
75 try {
76 ObjectName mbeanName = new ObjectName (getMBeanName());
77 QueryExp query = null;
78 Set results = server.queryMBeans(mbeanName, query);
79
80 instance = (ObjectInstance ) results.iterator().next();
81 name = instance.getObjectName();
82 return name.getDomain();
83
84 } catch (MalformedObjectNameException e) {
85 return "No object to introspect. Choose one from the MBean Stack View.";
86 }
87 }
88
89
93 private String getMBeanName() {
94 String s =
95 pageContext.getRequest().getParameter("MBeanName");
96 if (s == null || s == "") {
97 return null;
98 }
99 return s;
100 }
101
102 private void printMBeanProperties(JspWriter out) {
103 try {
104 out.println("<table cellpadding=\"0\" cellspacing=\"0\">");
107
108 out.println("\t<tr class=\"head\">");
109 out.println("\t\t<td class=\"head\" colspan=\"3\">" +
110 "MBean Properties</td>");
111 out.println("\t</tr>");
112
113 out.println("\t<tr class=\"one\">");
114 out.println("\t\t<td class=\"name\">MBean Domain</td>");
115 out.println("\t\t<td class=\"center\">=</td>");
116 out.println("\t\t<td class=\"value\">" + getDomain() + "</td>");
117 out.println("\t</tr>");
118
119 printMBeanPropertiesStack(out);
120
121 out.println("</table>");
122 } catch (IOException e) {
123 e.printStackTrace();
124 }
125 }
126
127 private void printMBeanPropertiesStack(JspWriter out) {
128 properties = name.getKeyPropertyList();
129 keySet = properties.keySet();
130 keys = toList(keySet).toArray();
131
132 try {
133
135 String key;
136 String property;
137 String trClass = "one";
138 for (int i = 0; i < keys.length; i++) {
139 key = (String ) keys[i];
140 property = (String ) name.getKeyProperty(key);
141 if (i % 2 == 0) {
142 trClass = "two";
143 } else if (i % 2 == 1) {
144 trClass = "one";
145 }
146
147 out.println("\t<tr class=\"" + trClass + "\">");
148 out.println("\t\t<td class=\"name\">" + key + "</td>");
149 out.println("\t\t<td class=\"center\">=</td>");
150 out.println("\t\t<td class=\"value\">" +
151 URLDecoder.decode(property, "UTF-8") + "</td>");
152 out.println("\t</tr>");
153
154 }
155 } catch (IOException e) {
156 e.printStackTrace();
157 }
158 }
159
160 private void printMBeanAttributes(JspWriter out) {
161 try {
162 out.println("<table cellpadding=\"0\" cellspacing=\"0\">");
165
166 out.println("\t<tr class=\"head\">");
167 out.println("\t\t<td class=\"head\" colspan=\"3\">" +
168 "MBean Attributes & Info</td>");
169 out.println("\t</tr>");
170
171 printMBeanAttributesStack(out);
172
173
174 out.println("</table>");
175 } catch (IOException e) {
176 e.printStackTrace();
177 }
178 }
179
180 private void printMBeanAttributesStack(JspWriter out) {
181 try {
182 MBeanInfo info = server.getMBeanInfo(name);
183 MBeanAttributeInfo [] attributes = info.getAttributes();
184 String className = info.getClassName();
185 String description = info.getDescription();
186
187 out.println("\t<tr class=\"one\">");
188 out.println("\t\t<td class=\"name\">Class Name</td>");
189 out.println("\t\t<td class=\"center\">=</td>");
190 out.println("\t\t<td class=\"value\">" + className + "</td>");
191 out.println("\t</tr>");
192
193 out.println("\t<tr class=\"two\">");
194 out.println("\t\t<td class=\"name\">Description</td>");
195 out.println("\t\t<td class=\"center\">=</td>");
196 out.println("\t\t<td class=\"value\">" + description + "</td>");
197 out.println("\t</tr>");
198
199 String attributeName = "name";
200 String value = "value";
201 String trClass = "one";
202 for (int i = 0; i < attributes.length; i++) {
203
204 attributeName = attributes[i].getName();
205
207 if (attributes[i].isReadable()) {
208 Object attrObj = server.getAttribute(name, attributeName);
209 if ( attrObj == null ) {
210 continue;
211 }
212 value = attrObj.toString();
213
214 if (i % 2 == 0) {
215 trClass = "one";
216 } else if (i % 2 == 1) {
217 trClass = "two";
218 }
219 out.println("\t<tr class=\"" + trClass + "\">");
220 out.println("\t\t<td class=\"name\">" + attributeName + "</td>");
221 out.println("\t\t<td class=\"center\">=</td>");
222 out.println("\t\t<td class=\"value\">" +
223 URLDecoder.decode(value, "UTF-8") + "</td>");
224 out.println("\t</tr>");
225 }
226 }
227 } catch (Exception e) {
228 e.printStackTrace();
229 }
230 }
231
232 private List toList(Set set) {
233 List list = new ArrayList ();
234 MBeanAttributesComparator comp = new MBeanAttributesComparator();
235 list.addAll(set);
236 Collections.sort(list, comp);
237 return list;
238 }
239 }
240 |
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