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1
8 package mx4j.tools.adaptor.http;
9
10 import java.io.IOException  ;
11 import java.util.HashMap ;
12 import java.util.Iterator ;
13 import java.util.List ;
14 import java.util.Map ;
15 import java.util.Set ;
16
17 import javax.management.JMException ;
18 import javax.management.MBeanServerInvocationHandler ;
19 import javax.management.ObjectInstance ;
20 import javax.management.ObjectName ;
21 import javax.management.relation.RelationServiceMBean ;
22 import javax.management.relation.RoleInfo ;
23
24 import org.w3c.dom.Document ;
25 import org.w3c.dom.Element ;
26 import org.w3c.dom.Text ;
27
28
34 public class RelationCommandProcessor extends HttpCommandProcessorAdaptor
35 {
36 private ObjectName m_relationObjectName = null;
37 private RelationServiceMBean m_proxy = null;
38
39 public RelationCommandProcessor()
40 {
41 }
42
43 public Document executeRequest(HttpInputStream in) throws IOException , JMException
44 {
45 Document document = builder.newDocument();
46 Element root = document.createElement("RelationServer");
47 document.appendChild(root);
48
49 if (!checkRelationServiceIsRegistered())
51 {
52 Element defaultElement = document.createElement("default");
53 Text defaultNode = document.createTextNode("RelationService is not registered!");
54 defaultElement.appendChild(defaultNode);
55 root.appendChild(defaultElement);
56 return document;
57 }
58 m_proxy = (RelationServiceMBean )MBeanServerInvocationHandler.newProxyInstance(server, m_relationObjectName, RelationServiceMBean .class, true);
59
60 List allRelationNames = m_proxy.getAllRelationTypeNames();
62 addRelationTypeNames(root, document, allRelationNames);
63 return document;
64 }
65
66
70 protected void addRelationTypeNames(Element node, Document document, List allRelationNames) throws JMException
71 {
72 Map namesMap = new HashMap ();
73 Iterator i = allRelationNames.iterator();
74 while (i.hasNext())
75 {
76 String name = (String )i.next();
77 List values = m_proxy.findRelationsOfType(name);
78 if (namesMap.containsKey(name))
79 {
80
81 ((List )namesMap.get(name)).add(values);
82 }
83 else
84 {
85 namesMap.put(name, values);
86 }
87 }
88 i = namesMap.keySet().iterator();
90 while (i.hasNext())
91 {
92 String relationName = (String )i.next();
93 Element typeNameElement = document.createElement("relation-type-name");
94 typeNameElement.setAttribute("name", relationName);
95 node.appendChild(typeNameElement);
96
97 List infos = m_proxy.getRoleInfos(relationName);
98 Iterator x = infos.iterator();
99 while (x.hasNext())
101 {
102 RoleInfo roleInfo = (RoleInfo )x.next();
104 String roleName = roleInfo.getName();
105 String mbeanClassName = roleInfo.getRefMBeanClassName();
106 String description = roleInfo.getDescription();
107 int minDegree = roleInfo.getMinDegree();
108 int maxDegree = roleInfo.getMaxDegree();
109 boolean reading = roleInfo.isReadable();
110 boolean writing = roleInfo.isWritable();
111
112 Element roleInfoElement = document.createElement("relation-meta-data");
114
115 Element roleNameElement = document.createElement("role-name");
117 Text roleNameNode = document.createTextNode(roleName);
118 roleNameElement.appendChild(roleNameNode);
119 roleInfoElement.appendChild(roleNameElement);
120
121 Element mbeanClassElement = document.createElement("mbean-classname");
123 Text mbeanClassNode = document.createTextNode(mbeanClassName);
124 mbeanClassElement.appendChild(mbeanClassNode);
125 roleInfoElement.appendChild(mbeanClassElement);
126
127 Element descriptionElement = document.createElement("description");
129 if (description == null) description = "no description";
130 Text descriptionNode = document.createTextNode(description);
131 descriptionElement.appendChild(descriptionNode);
132 roleInfoElement.appendChild(descriptionElement);
133
134 Element minDegreeElement = document.createElement("min-degree");
136 Text minDegreeNode = document.createTextNode(Integer.toString(minDegree));
137 minDegreeElement.appendChild(minDegreeNode);
138 roleInfoElement.appendChild(minDegreeElement);
139
140 Element maxDegreeElement = document.createElement("max-degree");
141 Text maxDegreeNode = document.createTextNode(Integer.toString(maxDegree));
142 maxDegreeElement.appendChild(maxDegreeNode);
143 roleInfoElement.appendChild(maxDegreeElement);
144
145 Element readingElement = document.createElement("is-readable");
146 String readable = null;
147 if (reading)
148 readable = "true";
149 else
150 readable = "false";
151 Text readingNode = document.createTextNode(readable);
152 readingElement.appendChild(readingNode);
153 roleInfoElement.appendChild(readingElement);
154
155 Element writingElement = document.createElement("is-writable");
156 String writable = null;
157 if (writing)
158 writable = "true";
159 else
160 writable = "false";
161 Text writingNode = document.createTextNode(writable);
162 writingElement.appendChild(writingNode);
163 roleInfoElement.appendChild(writingElement);
164
165 typeNameElement.appendChild(roleInfoElement);
166
167 }
168 List references = (List )namesMap.get(relationName);
170 Iterator j = references.iterator();
171 while (j.hasNext())
172 {
173 String relationId = (String )j.next();
174 Element idElement = document.createElement("relation-id");
175 Text idNode = document.createTextNode(relationId);
176 idElement.appendChild(idNode);
177 typeNameElement.appendChild(idElement);
178 }
179 }
180 }
181
182 protected boolean checkRelationServiceIsRegistered()
184 {
185 Set allMBeans = server.queryMBeans(null, null);
186 for (Iterator i = allMBeans.iterator(); i.hasNext();)
187 {
188 ObjectInstance instance = (ObjectInstance )i.next();
189 if (instance.getClassName().equals("javax.management.relation.RelationService"))
190 {
191 m_relationObjectName = instance.getObjectName();
193 return true;
194 }
195 }
196 return false;
197 }
198 }
199 |
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