2
|
1 |
/*
|
5506
|
2 |
* Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved.
|
2
|
3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
4 |
*
|
|
5 |
* This code is free software; you can redistribute it and/or modify it
|
|
6 |
* under the terms of the GNU General Public License version 2 only, as
|
5506
|
7 |
* published by the Free Software Foundation. Oracle designates this
|
2
|
8 |
* particular file as subject to the "Classpath" exception as provided
|
5506
|
9 |
* by Oracle in the LICENSE file that accompanied this code.
|
2
|
10 |
*
|
|
11 |
* This code is distributed in the hope that it will be useful, but WITHOUT
|
|
12 |
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
13 |
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
14 |
* version 2 for more details (a copy is included in the LICENSE file that
|
|
15 |
* accompanied this code).
|
|
16 |
*
|
|
17 |
* You should have received a copy of the GNU General Public License version
|
|
18 |
* 2 along with this work; if not, write to the Free Software Foundation,
|
|
19 |
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
20 |
*
|
5506
|
21 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
22 |
* or visit www.oracle.com if you need additional information or have any
|
|
23 |
* questions.
|
2
|
24 |
*/
|
|
25 |
package sun.management.snmp.jvminstr;
|
|
26 |
|
|
27 |
// java imports
|
|
28 |
//
|
|
29 |
import java.io.Serializable;
|
|
30 |
|
|
31 |
import java.lang.management.ThreadMXBean;
|
|
32 |
import java.lang.management.ManagementFactory;
|
|
33 |
|
|
34 |
// jmx imports
|
|
35 |
//
|
|
36 |
import javax.management.MBeanServer;
|
|
37 |
import com.sun.jmx.snmp.SnmpString;
|
|
38 |
import com.sun.jmx.snmp.SnmpStatusException;
|
|
39 |
|
|
40 |
// jdmk imports
|
|
41 |
//
|
|
42 |
import com.sun.jmx.snmp.agent.SnmpMib;
|
|
43 |
import com.sun.jmx.snmp.SnmpDefinitions;
|
|
44 |
|
|
45 |
import sun.management.snmp.jvmmib.JvmThreadingMBean;
|
|
46 |
import sun.management.snmp.jvmmib.EnumJvmThreadCpuTimeMonitoring;
|
|
47 |
import sun.management.snmp.jvmmib.EnumJvmThreadContentionMonitoring;
|
|
48 |
import sun.management.snmp.util.MibLogger;
|
|
49 |
|
|
50 |
/**
|
|
51 |
* The class is used for implementing the "JvmThreading" group.
|
|
52 |
*/
|
|
53 |
public class JvmThreadingImpl implements JvmThreadingMBean {
|
|
54 |
|
|
55 |
/**
|
|
56 |
* Variable for storing the value of "JvmThreadCpuTimeMonitoring".
|
|
57 |
*
|
|
58 |
* "The state of the Thread CPU Time Monitoring feature.
|
|
59 |
* This feature can be:
|
|
60 |
*
|
|
61 |
* unsupported: The JVM does not support Thread CPU Time Monitoring.
|
|
62 |
* enabled : The JVM supports Thread CPU Time Monitoring, and it
|
|
63 |
* is enabled.
|
|
64 |
* disabled : The JVM supports Thread CPU Time Monitoring, and it
|
|
65 |
* is disabled.
|
|
66 |
*
|
|
67 |
* Only enabled(3) and disabled(4) may be supplied as values to a
|
|
68 |
* SET request. unsupported(1) can only be set internally by the
|
|
69 |
* agent.
|
|
70 |
*
|
|
71 |
* See java.lang.management.ThreadMXBean.isThreadCpuTimeSupported(),
|
|
72 |
* java.lang.management.ThreadMXBean.isThreadCpuTimeEnabled(),
|
|
73 |
* java.lang.management.ThreadMXBean.setThreadCpuTimeEnabled()
|
|
74 |
* "
|
|
75 |
*
|
|
76 |
*/
|
|
77 |
final static EnumJvmThreadCpuTimeMonitoring
|
|
78 |
JvmThreadCpuTimeMonitoringUnsupported =
|
|
79 |
new EnumJvmThreadCpuTimeMonitoring("unsupported");
|
|
80 |
final static EnumJvmThreadCpuTimeMonitoring
|
|
81 |
JvmThreadCpuTimeMonitoringEnabled =
|
|
82 |
new EnumJvmThreadCpuTimeMonitoring("enabled");
|
|
83 |
final static EnumJvmThreadCpuTimeMonitoring
|
|
84 |
JvmThreadCpuTimeMonitoringDisabled =
|
|
85 |
new EnumJvmThreadCpuTimeMonitoring("disabled");
|
|
86 |
|
|
87 |
|
|
88 |
/**
|
|
89 |
* Variable for storing the value of "JvmThreadContentionMonitoring".
|
|
90 |
*
|
|
91 |
* "The state of the Thread Contention Monitoring feature.
|
|
92 |
* This feature can be:
|
|
93 |
*
|
|
94 |
* unsupported: The JVM does not support Thread Contention Monitoring.
|
|
95 |
* enabled : The JVM supports Thread Contention Monitoring, and it
|
|
96 |
* is enabled.
|
|
97 |
* disabled : The JVM supports Thread Contention Monitoring, and it
|
|
98 |
* is disabled.
|
|
99 |
*
|
|
100 |
* Only enabled(3) and disabled(4) may be supplied as values to a
|
|
101 |
* SET request. unsupported(1) can only be set internally by the
|
|
102 |
* agent.
|
|
103 |
*
|
|
104 |
* See java.lang.management.ThreadMXBean.isThreadContentionMonitoringSupported(),
|
|
105 |
* java.lang.management.ThreadMXBean.isThreadContentionMonitoringEnabled(),
|
|
106 |
* java.lang.management.ThreadMXBean.setThreadContentionMonitoringEnabled()
|
|
107 |
* "
|
|
108 |
*
|
|
109 |
*/
|
|
110 |
static final EnumJvmThreadContentionMonitoring
|
|
111 |
JvmThreadContentionMonitoringUnsupported =
|
|
112 |
new EnumJvmThreadContentionMonitoring("unsupported");
|
|
113 |
static final EnumJvmThreadContentionMonitoring
|
|
114 |
JvmThreadContentionMonitoringEnabled =
|
|
115 |
new EnumJvmThreadContentionMonitoring("enabled");
|
|
116 |
static final EnumJvmThreadContentionMonitoring
|
|
117 |
JvmThreadContentionMonitoringDisabled =
|
|
118 |
new EnumJvmThreadContentionMonitoring("disabled");
|
|
119 |
|
|
120 |
/**
|
|
121 |
* Constructor for the "JvmThreading" group.
|
|
122 |
* If the group contains a table, the entries created through an SNMP SET
|
|
123 |
* will not be registered in Java DMK.
|
|
124 |
*/
|
|
125 |
public JvmThreadingImpl(SnmpMib myMib) {
|
|
126 |
log.debug("JvmThreadingImpl","Constructor");
|
|
127 |
}
|
|
128 |
|
|
129 |
|
|
130 |
/**
|
|
131 |
* Constructor for the "JvmThreading" group.
|
|
132 |
* If the group contains a table, the entries created through an SNMP SET
|
|
133 |
* will be AUTOMATICALLY REGISTERED in Java DMK.
|
|
134 |
*/
|
|
135 |
public JvmThreadingImpl(SnmpMib myMib, MBeanServer server) {
|
|
136 |
log.debug("JvmThreadingImpl","Constructor with server");
|
|
137 |
}
|
|
138 |
|
|
139 |
/**
|
|
140 |
* ThreadMXBean accessor. It is acquired from the
|
|
141 |
* java.lang.management.ManagementFactory
|
|
142 |
* @return The local ThreadMXBean.
|
|
143 |
*/
|
|
144 |
static ThreadMXBean getThreadMXBean() {
|
|
145 |
return ManagementFactory.getThreadMXBean();
|
|
146 |
}
|
|
147 |
|
|
148 |
/**
|
|
149 |
* Getter for the "JvmThreadCpuTimeMonitoring" variable.
|
|
150 |
*/
|
|
151 |
public EnumJvmThreadCpuTimeMonitoring getJvmThreadCpuTimeMonitoring()
|
|
152 |
throws SnmpStatusException {
|
|
153 |
|
|
154 |
ThreadMXBean mbean = getThreadMXBean();
|
|
155 |
|
|
156 |
if(!mbean.isThreadCpuTimeSupported()) {
|
|
157 |
log.debug("getJvmThreadCpuTimeMonitoring",
|
|
158 |
"Unsupported ThreadCpuTimeMonitoring");
|
|
159 |
return JvmThreadCpuTimeMonitoringUnsupported;
|
|
160 |
}
|
|
161 |
|
|
162 |
try {
|
|
163 |
if(mbean.isThreadCpuTimeEnabled()) {
|
|
164 |
log.debug("getJvmThreadCpuTimeMonitoring",
|
|
165 |
"Enabled ThreadCpuTimeMonitoring");
|
|
166 |
return JvmThreadCpuTimeMonitoringEnabled;
|
|
167 |
} else {
|
|
168 |
log.debug("getJvmThreadCpuTimeMonitoring",
|
|
169 |
"Disabled ThreadCpuTimeMonitoring");
|
|
170 |
return JvmThreadCpuTimeMonitoringDisabled;
|
|
171 |
}
|
|
172 |
}catch(UnsupportedOperationException e) {
|
|
173 |
log.debug("getJvmThreadCpuTimeMonitoring",
|
|
174 |
"Newly unsupported ThreadCpuTimeMonitoring");
|
|
175 |
|
|
176 |
return JvmThreadCpuTimeMonitoringUnsupported;
|
|
177 |
}
|
|
178 |
}
|
|
179 |
|
|
180 |
/**
|
|
181 |
* Setter for the "JvmThreadCpuTimeMonitoring" variable.
|
|
182 |
*/
|
|
183 |
public void setJvmThreadCpuTimeMonitoring(EnumJvmThreadCpuTimeMonitoring x)
|
|
184 |
throws SnmpStatusException {
|
|
185 |
|
|
186 |
ThreadMXBean mbean = getThreadMXBean();
|
|
187 |
|
|
188 |
// We can trust the received value, it has been checked in
|
|
189 |
// checkJvmThreadCpuTimeMonitoring
|
|
190 |
if(JvmThreadCpuTimeMonitoringEnabled.intValue() == x.intValue())
|
|
191 |
mbean.setThreadCpuTimeEnabled(true);
|
|
192 |
else
|
|
193 |
mbean.setThreadCpuTimeEnabled(false);
|
|
194 |
}
|
|
195 |
|
|
196 |
/**
|
|
197 |
* Checker for the "JvmThreadCpuTimeMonitoring" variable.
|
|
198 |
*/
|
|
199 |
public void checkJvmThreadCpuTimeMonitoring(EnumJvmThreadCpuTimeMonitoring
|
|
200 |
x)
|
|
201 |
throws SnmpStatusException {
|
|
202 |
|
|
203 |
//Can't be set externaly to unsupported state.
|
|
204 |
if(JvmThreadCpuTimeMonitoringUnsupported.intValue() == x.intValue()) {
|
|
205 |
log.debug("checkJvmThreadCpuTimeMonitoring",
|
|
206 |
"Try to set to illegal unsupported value");
|
|
207 |
throw new SnmpStatusException(SnmpDefinitions.snmpRspWrongValue);
|
|
208 |
}
|
|
209 |
|
|
210 |
if ((JvmThreadCpuTimeMonitoringEnabled.intValue() == x.intValue()) ||
|
|
211 |
(JvmThreadCpuTimeMonitoringDisabled.intValue() == x.intValue())) {
|
|
212 |
|
|
213 |
// The value is a valid value. But is the feature supported?
|
|
214 |
ThreadMXBean mbean = getThreadMXBean();
|
|
215 |
if(mbean.isThreadCpuTimeSupported()) return;
|
|
216 |
|
|
217 |
// Not supported.
|
|
218 |
log.debug("checkJvmThreadCpuTimeMonitoring",
|
|
219 |
"Unsupported operation, can't set state");
|
|
220 |
throw new
|
|
221 |
SnmpStatusException(SnmpDefinitions.snmpRspInconsistentValue);
|
|
222 |
}
|
|
223 |
|
|
224 |
// Unknown value.
|
|
225 |
log.debug("checkJvmThreadCpuTimeMonitoring",
|
|
226 |
"unknown enum value ");
|
|
227 |
throw new SnmpStatusException(SnmpDefinitions.snmpRspWrongValue);
|
|
228 |
}
|
|
229 |
|
|
230 |
/**
|
|
231 |
* Getter for the "JvmThreadContentionMonitoring" variable.
|
|
232 |
*/
|
|
233 |
public EnumJvmThreadContentionMonitoring getJvmThreadContentionMonitoring()
|
|
234 |
throws SnmpStatusException {
|
|
235 |
|
|
236 |
ThreadMXBean mbean = getThreadMXBean();
|
|
237 |
|
|
238 |
if(!mbean.isThreadContentionMonitoringSupported()) {
|
|
239 |
log.debug("getJvmThreadContentionMonitoring",
|
|
240 |
"Unsupported ThreadContentionMonitoring");
|
|
241 |
return JvmThreadContentionMonitoringUnsupported;
|
|
242 |
}
|
|
243 |
|
|
244 |
if(mbean.isThreadContentionMonitoringEnabled()) {
|
|
245 |
log.debug("getJvmThreadContentionMonitoring",
|
|
246 |
"Enabled ThreadContentionMonitoring");
|
|
247 |
return JvmThreadContentionMonitoringEnabled;
|
|
248 |
} else {
|
|
249 |
log.debug("getJvmThreadContentionMonitoring",
|
|
250 |
"Disabled ThreadContentionMonitoring");
|
|
251 |
return JvmThreadContentionMonitoringDisabled;
|
|
252 |
}
|
|
253 |
}
|
|
254 |
|
|
255 |
/**
|
|
256 |
* Setter for the "JvmThreadContentionMonitoring" variable.
|
|
257 |
*/
|
|
258 |
public void setJvmThreadContentionMonitoring(
|
|
259 |
EnumJvmThreadContentionMonitoring x)
|
|
260 |
throws SnmpStatusException {
|
|
261 |
ThreadMXBean mbean = getThreadMXBean();
|
|
262 |
|
|
263 |
// We can trust the received value, it has been checked in
|
|
264 |
// checkJvmThreadContentionMonitoring
|
|
265 |
if(JvmThreadContentionMonitoringEnabled.intValue() == x.intValue())
|
|
266 |
mbean.setThreadContentionMonitoringEnabled(true);
|
|
267 |
else
|
|
268 |
mbean.setThreadContentionMonitoringEnabled(false);
|
|
269 |
}
|
|
270 |
|
|
271 |
/**
|
|
272 |
* Checker for the "JvmThreadContentionMonitoring" variable.
|
|
273 |
*/
|
|
274 |
public void checkJvmThreadContentionMonitoring(
|
|
275 |
EnumJvmThreadContentionMonitoring x)
|
|
276 |
throws SnmpStatusException {
|
|
277 |
//Can't be set externaly to unsupported state.
|
|
278 |
if(JvmThreadContentionMonitoringUnsupported.intValue()==x.intValue()) {
|
|
279 |
log.debug("checkJvmThreadContentionMonitoring",
|
|
280 |
"Try to set to illegal unsupported value");
|
|
281 |
throw new SnmpStatusException(SnmpDefinitions.snmpRspWrongValue);
|
|
282 |
}
|
|
283 |
|
|
284 |
if ((JvmThreadContentionMonitoringEnabled.intValue()==x.intValue()) ||
|
|
285 |
(JvmThreadContentionMonitoringDisabled.intValue()==x.intValue())) {
|
|
286 |
|
|
287 |
// The value is valid, but is the feature supported ?
|
|
288 |
ThreadMXBean mbean = getThreadMXBean();
|
|
289 |
if(mbean.isThreadContentionMonitoringSupported()) return;
|
|
290 |
|
|
291 |
log.debug("checkJvmThreadContentionMonitoring",
|
|
292 |
"Unsupported operation, can't set state");
|
|
293 |
throw new
|
|
294 |
SnmpStatusException(SnmpDefinitions.snmpRspInconsistentValue);
|
|
295 |
}
|
|
296 |
|
|
297 |
log.debug("checkJvmThreadContentionMonitoring",
|
|
298 |
"Try to set to unknown value");
|
|
299 |
throw new SnmpStatusException(SnmpDefinitions.snmpRspWrongValue);
|
|
300 |
}
|
|
301 |
|
|
302 |
/**
|
|
303 |
* Getter for the "JvmThreadTotalStartedCount" variable.
|
|
304 |
*/
|
|
305 |
public Long getJvmThreadTotalStartedCount() throws SnmpStatusException {
|
|
306 |
return new Long(getThreadMXBean().getTotalStartedThreadCount());
|
|
307 |
}
|
|
308 |
|
|
309 |
/**
|
|
310 |
* Getter for the "JvmThreadPeakCount" variable.
|
|
311 |
*/
|
|
312 |
public Long getJvmThreadPeakCount() throws SnmpStatusException {
|
|
313 |
return new Long(getThreadMXBean().getPeakThreadCount());
|
|
314 |
}
|
|
315 |
|
|
316 |
/**
|
|
317 |
* Getter for the "JvmThreadDaemonCount" variable.
|
|
318 |
*/
|
|
319 |
public Long getJvmThreadDaemonCount() throws SnmpStatusException {
|
|
320 |
return new Long(getThreadMXBean().getDaemonThreadCount());
|
|
321 |
}
|
|
322 |
|
|
323 |
/**
|
|
324 |
* Getter for the "JvmThreadCount" variable.
|
|
325 |
*/
|
|
326 |
public Long getJvmThreadCount() throws SnmpStatusException {
|
|
327 |
return new Long(getThreadMXBean().getThreadCount());
|
|
328 |
}
|
|
329 |
|
|
330 |
/**
|
|
331 |
* Getter for the "JvmThreadPeakCountReset" variable.
|
|
332 |
*/
|
|
333 |
public synchronized Long getJvmThreadPeakCountReset()
|
|
334 |
throws SnmpStatusException {
|
|
335 |
return new Long(jvmThreadPeakCountReset);
|
|
336 |
}
|
|
337 |
|
|
338 |
/**
|
|
339 |
* Setter for the "JvmThreadPeakCountReset" variable.
|
|
340 |
*/
|
|
341 |
public synchronized void setJvmThreadPeakCountReset(Long x)
|
|
342 |
throws SnmpStatusException {
|
|
343 |
final long l = x.longValue();
|
|
344 |
if (l > jvmThreadPeakCountReset) {
|
|
345 |
final long stamp = System.currentTimeMillis();
|
|
346 |
getThreadMXBean().resetPeakThreadCount();
|
|
347 |
jvmThreadPeakCountReset = stamp;
|
|
348 |
log.debug("setJvmThreadPeakCountReset",
|
|
349 |
"jvmThreadPeakCountReset="+stamp);
|
|
350 |
}
|
|
351 |
}
|
|
352 |
|
|
353 |
/**
|
|
354 |
* Checker for the "JvmThreadPeakCountReset" variable.
|
|
355 |
*/
|
|
356 |
public void checkJvmThreadPeakCountReset(Long x)
|
|
357 |
throws SnmpStatusException {
|
|
358 |
}
|
|
359 |
|
|
360 |
/* Last time thread peak count was reset */
|
|
361 |
private long jvmThreadPeakCountReset=0;
|
|
362 |
|
|
363 |
static final MibLogger log = new MibLogger(JvmThreadingImpl.class);
|
|
364 |
}
|