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1
8
9 package mx4j.tools.adaptor.http;
10
11 import java.io.IOException  ;
12 import java.lang.reflect.Array ;
13 import java.util.Collection ;
14 import java.util.Iterator ;
15 import java.util.Map ;
16 import javax.management.JMException ;
17 import javax.management.MBeanAttributeInfo ;
18 import javax.management.MBeanInfo ;
19 import javax.management.ObjectName ;
20
21 import org.w3c.dom.Document ;
22 import org.w3c.dom.Element ;
23
24
30 public class GetAttributeCommandProcessor extends HttpCommandProcessorAdaptor
31 {
32 public GetAttributeCommandProcessor()
33 {
34 }
35
36 public Document executeRequest(HttpInputStream in) throws IOException , JMException
37 {
38 Document document = builder.newDocument();
39
40 String name = in.getVariable("objectname");
41 String attributeVariable = in.getVariable("attribute");
42 String formatVariable = in.getVariable("format");
43 ObjectName objectName = null;
44 MBeanAttributeInfo targetAttribute = null;
45 boolean validMBean = false;
47 if (name != null)
48 {
49 objectName = new ObjectName (name);
50 if (server.isRegistered(objectName))
51 {
52 validMBean = true;
53 }
54 }
55 if (validMBean && attributeVariable != null)
56 {
57 validMBean = false;
58 MBeanInfo info = server.getMBeanInfo(objectName);
59 MBeanAttributeInfo [] attributes = info.getAttributes();
60
61 if (attributes != null)
62 {
63 for (int i = 0; i < attributes.length; i++)
64 {
65 if (attributes[i].getName().equals(attributeVariable))
66 {
67 targetAttribute = attributes[i];
68 validMBean = true;
69 break;
70 }
71 }
72 }
73 }
74 if (validMBean)
75 {
76 Element root = document.createElement("MBean");
77 document.appendChild(root);
78
79 root.setAttribute("objectname", objectName.toString());
80 MBeanInfo info = server.getMBeanInfo(objectName);
81 root.setAttribute("classname", info.getClassName());
82 root.setAttribute("description", info.getDescription());
83
84 Element attribute = document.createElement("Attribute");
85 attribute.setAttribute("name", attributeVariable);
86 attribute.setAttribute("classname", targetAttribute.getType());
87 Object attributeValue = server.getAttribute(objectName, attributeVariable);
88 attribute.setAttribute("isnull", (attributeValue == null) ? "true" : "false");
89 root.appendChild(attribute);
90
91 if ("array".equals(formatVariable) && attributeValue.getClass().isArray())
92 {
93 Element array = document.createElement("Array");
94 array.setAttribute("componentclass", attributeValue.getClass().getComponentType().getName());
95 int length = Array.getLength(attributeValue);
96 array.setAttribute("length", "" + length);
97 for (int i = 0; i < length; i++)
98 {
99 Element arrayElement = document.createElement("Element");
100 arrayElement.setAttribute("index", "" + i);
101 if (Array.get(attributeValue, i) != null)
102 {
103 arrayElement.setAttribute("element", Array.get(attributeValue, i).toString());
104 arrayElement.setAttribute("isnull", "false");
105 }
106 else
107 {
108 arrayElement.setAttribute("element", "null");
109 arrayElement.setAttribute("isnull", "true");
110 }
111 array.appendChild(arrayElement);
112 }
113 attribute.appendChild(array);
114 }
115 else if ("collection".equals(formatVariable) && attributeValue instanceof Collection )
116 {
117 Collection collection = (Collection )attributeValue;
118 Element collectionElement = document.createElement("Collection");
119 collectionElement.setAttribute("length", "" + collection.size());
120 Iterator i = collection.iterator();
121 int j = 0;
122 while (i.hasNext())
123 {
124 Element collectionEntry = document.createElement("Element");
125 collectionEntry.setAttribute("index", "" + j++);
126 Object obj = i.next();
127 if (obj != null)
128 {
129 collectionEntry.setAttribute("elementclass", obj.getClass().getName());
130 collectionEntry.setAttribute("element", obj.toString());
131 }
132 else
133 {
134 collectionEntry.setAttribute("elementclass", "null");
135 collectionEntry.setAttribute("element", "null");
136 }
137 collectionElement.appendChild(collectionEntry);
138 }
139 attribute.appendChild(collectionElement);
140 }
141 else if ("map".equals(formatVariable) && attributeValue instanceof Map )
142 {
143 Map map = (Map )attributeValue;
144 Element mapElement = document.createElement("Map");
145 mapElement.setAttribute("length", "" + map.size());
146 Iterator i = map.keySet().iterator();
147 int j = 0;
148 while (i.hasNext())
149 {
150 Element mapEntry = document.createElement("Element");
151 mapEntry.setAttribute("index", "" + j++);
152 Object key = i.next();
153 Object entry = map.get(key);
154 if (entry != null && key != null)
155 {
156 mapEntry.setAttribute("keyclass", key.getClass().getName());
157 mapEntry.setAttribute("key", key.toString());
158 mapEntry.setAttribute("elementclass", entry.getClass().getName());
159 mapEntry.setAttribute("element", entry.toString());
160 }
161 else
162 {
163 mapEntry.setAttribute("keyclass", "null");
164 mapEntry.setAttribute("key", "null");
165 mapEntry.setAttribute("elementclass", "null");
166 mapEntry.setAttribute("element", "null");
167 }
168 mapElement.appendChild(mapEntry);
169 }
170 attribute.appendChild(mapElement);
171 }
172 else
173 {
174 attribute.setAttribute("value", (attributeValue == null) ? "null" : attributeValue.toString());
175 }
176
177 }
178 return document;
179 }
180 }
181 |
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