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1
17
18 package org.apache.geronimo.j2ee.management.impl;
19
20 import java.net.InetAddress  ;
21 import java.net.UnknownHostException ;
22 import java.util.Date ;
23 import java.util.Hashtable ;
24 import java.util.Properties ;
25 import javax.management.ObjectName ;
26 import javax.management.j2ee.statistics.Stats ;
27
28 import org.apache.geronimo.gbean.GBeanInfo;
29 import org.apache.geronimo.gbean.GBeanInfoBuilder;
30 import org.apache.geronimo.j2ee.j2eeobjectnames.NameFactory;
31 import org.apache.geronimo.kernel.Kernel;
32 import org.apache.geronimo.kernel.ObjectNameUtil;
33 import org.apache.geronimo.management.StatisticsProvider;
34 import org.apache.geronimo.management.geronimo.JVM;
35 import org.apache.geronimo.management.stats.BoundedRangeImpl;
36 import org.apache.geronimo.management.stats.JVMStatsImpl;
37 import org.apache.geronimo.system.logging.SystemLog;
38
39
44 public class JVMImpl implements JVM, StatisticsProvider {
45 public static final String JAVA_VERSION = System.getProperty("java.version");
46 public static final String JAVA_VENDOR = System.getProperty("java.vendor");
47 public static final String NODE;
48 private static final Runtime runtime = Runtime.getRuntime();
49
50 static {
51 String node;
52 try {
53 node = InetAddress.getLocalHost().toString();
54 } catch (UnknownHostException e) {
55 node = null;
56 }
57 NODE = node;
58 }
59
60 private final String objectName;
61 private final Kernel kernel;
62 private final SystemLog systemLog;
63 private JVMStatsImpl stats;
64
65 public JVMImpl(String objectName, Kernel kernel, SystemLog systemLog) {
66 this.objectName = objectName;
67 this.kernel = kernel;
68 this.systemLog = systemLog;
69 ObjectName myObjectName = ObjectNameUtil.getObjectName(this.objectName);
70 verifyObjectName(myObjectName);
71 }
72
73
78 private void verifyObjectName(ObjectName objectName) {
79 if (objectName.isPattern()) {
80 throw new InvalidObjectNameException("ObjectName can not be a pattern", objectName);
81 }
82 Hashtable keyPropertyList = objectName.getKeyPropertyList();
83 if (!"JVM".equals(keyPropertyList.get("j2eeType"))) {
84 throw new InvalidObjectNameException("JVM object name j2eeType property must be 'JVM'", objectName);
85 }
86 if (!keyPropertyList.containsKey("name")) {
87 throw new InvalidObjectNameException("JVM object must contain a name property", objectName);
88 }
89 if (!keyPropertyList.containsKey("J2EEServer")) {
90 throw new InvalidObjectNameException("JVM object must contain a J2EEServer property", objectName);
91 }
92 if (keyPropertyList.size() != 3) {
93 throw new InvalidObjectNameException("JVM object name can only have J2EEServer, j2eeType, and name", objectName);
94 }
95 }
96
97 public String getObjectName() {
98 return objectName;
99 }
100
101 public boolean isStateManageable() {
102 return true;
103 }
104
105 public boolean isStatisticsProvider() {
106 return true;
107 }
108
109 public boolean isEventProvider() {
110 return true;
111 }
112
113
119 public String getJavaVersion() {
120 return JAVA_VERSION;
121 }
122
123
129 public String getJavaVendor() {
130 return JAVA_VENDOR;
131 }
132
133
140 public String getNode() {
141 return NODE;
142 }
143
144 public int getAvailableProcessors() {
145 return runtime.availableProcessors();
146 }
147
148 public Date getKernelBootTime() {
149 return kernel.getBootTime();
150 }
151
152 public Stats getStats() {
153 BoundedRangeImpl heap;
154 if(stats == null) {
155 stats = new JVMStatsImpl();
156 long start = kernel.getBootTime().getTime();
157 stats.getUpTimeImpl().setCount(start);
158 stats.getUpTimeImpl().setStartTime(start);
159 heap = stats.getHeapSizeImpl();
160 heap.setStartTime(start);
161 heap.setBounds(0, runtime.totalMemory());
162 heap.setCurrent(heap.getUpperBound() - runtime.freeMemory());
163 heap.setLowWaterMark(heap.getCurrent());
164 heap.setHighWaterMark(heap.getCurrent());
165 } else {
166 heap = stats.getHeapSizeImpl();
167 heap.setBounds(0, runtime.totalMemory());
168 heap.setCurrent(heap.getUpperBound() - runtime.freeMemory());
169 }
170 long now = System.currentTimeMillis();
171 stats.getUpTimeImpl().setLastSampleTime(now);
172 heap.setLastSampleTime(now);
173 return stats;
174 }
175
176 public Properties getSystemProperties() {
177 return System.getProperties();
178 }
179
180 public SystemLog getSystemLog() {
181 return systemLog;
182 }
183
184 public static final GBeanInfo GBEAN_INFO;
185
186 static {
187 GBeanInfoBuilder infoFactory = GBeanInfoBuilder.createStatic(JVMImpl.class, NameFactory.JVM);
188 infoFactory.addReference("SystemLog", SystemLog.class);
189 infoFactory.setConstructor(new String [] {"objectName", "kernel", "SystemLog"});
190 GBEAN_INFO = infoFactory.getBeanInfo();
191 }
192
193 public static GBeanInfo getGBeanInfo() {
194 return GBEAN_INFO;
195 }
196 }
197 |
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