下面列出了怎么用javax.management.monitor.StringMonitor的API类实例代码及写法，或者点击链接到github查看源代码。
public static void main (String args[]) throws Exception {
ObjectName[] mbeanNames = new ObjectName[6];
ObservedObject[] monitored = new ObservedObject[6];
ObjectName[] monitorNames = new ObjectName[6];
Monitor[] monitor = new Monitor[6];
String[] principals = { "role1", "role2" };
String[] attributes = { "Integer", "Double", "String" };
try {
echo(">>> CREATE MBeanServer");
MBeanServer server = MBeanServerFactory.newMBeanServer();
for (int i = 0; i < 6; i++) {
mbeanNames[i] =
new ObjectName(":type=ObservedObject,instance=" + i);
monitored[i] = new ObservedObject();
echo(">>> CREATE ObservedObject = " + mbeanNames[i].toString());
server.registerMBean(monitored[i], mbeanNames[i]);
switch (i) {
case 0:
case 3:
monitorNames[i] =
new ObjectName(":type=CounterMonitor,instance=" + i);
monitor[i] = new CounterMonitor();
break;
case 1:
case 4:
monitorNames[i] =
new ObjectName(":type=GaugeMonitor,instance=" + i);
monitor[i] = new GaugeMonitor();
break;
case 2:
case 5:
monitorNames[i] =
new ObjectName(":type=StringMonitor,instance=" + i);
monitor[i] = new StringMonitor();
break;
}
echo(">>> CREATE Monitor = " + monitorNames[i].toString());
server.registerMBean(monitor[i], monitorNames[i]);
monitor[i].addObservedObject(mbeanNames[i]);
monitor[i].setObservedAttribute(attributes[i % 3]);
monitor[i].setGranularityPeriod(500);
final Monitor m = monitor[i];
Subject subject = new Subject();
echo(">>> RUN Principal = " + principals[i / 3]);
subject.getPrincipals().add(new JMXPrincipal(principals[i / 3]));
PrivilegedAction<Void> action = new PrivilegedAction<Void>() {
public Void run() {
m.start();
return null;
}
};
Subject.doAs(subject, action);
}
while(!testPrincipals(monitored, monitorNames, monitor, principals));
} finally {
for (int i = 0; i < 6; i++)
if (monitor[i] != null)
monitor[i].stop();
}
}
void run() throws Exception {
final MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
final ObjectName observedName = new ObjectName("a:b=c");
final ObjectName monitorName = new ObjectName("a:type=Monitor");
mbs.registerMBean(new StringMonitor(), monitorName);
final StringMonitorMBean monitorProxy =
JMX.newMBeanProxy(mbs, monitorName, StringMonitorMBean.class);
final TestMBean observedProxy =
JMX.newMBeanProxy(mbs, observedName, TestMBean.class);
final Runnable sensitiveThing = new Runnable() {
public void run() {
doSensitiveThing(monitorProxy, observedName);
}
};
final Runnable nothing = new Runnable() {
public void run() {}
};
final Runnable withinGetAttribute =
(when == When.IN_GET_ATTRIBUTE) ? sensitiveThing : nothing;
mbs.registerMBean(new Test(withinGetAttribute), observedName);
monitorProxy.addObservedObject(observedName);
monitorProxy.setObservedAttribute("Thing");
monitorProxy.setStringToCompare("old");
monitorProxy.setGranularityPeriod(10L); // 10 ms
monitorProxy.setNotifyDiffer(true);
final int initGetCount = observedProxy.getGetCount();
monitorProxy.start();
int getCount = initGetCount;
for (int i = 0; i < 500; i++) { // 500 * 10 = 5 seconds
getCount = observedProxy.getGetCount();
if (getCount != initGetCount)
break;
Thread.sleep(10);
}
if (getCount <= initGetCount)
throw new Exception("Test failed: presumable deadlock");
// This won't show up as a deadlock in CTRL-\ or in
// ThreadMXBean.findDeadlockedThreads(), because they don't
// see that thread A is waiting for thread B (B.join()), and
// thread B is waiting for a lock held by thread A
// Now we know the monitor has observed the initial value,
// so if we want to test notify behaviour we can trigger by
// exceeding the threshold.
if (when == When.IN_NOTIFY) {
final AtomicInteger notifCount = new AtomicInteger();
final NotificationListener listener = new NotificationListener() {
public void handleNotification(Notification n, Object h) {
Thread t = new Thread(sensitiveThing);
t.start();
try {
t.join();
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
notifCount.incrementAndGet();
}
};
mbs.addNotificationListener(monitorName, listener, null, null);
observedProxy.setThing("new");
for (int i = 0; i < 500 && notifCount.get() == 0; i++)
Thread.sleep(10);
if (notifCount.get() == 0)
throw new Exception("Test failed: presumable deadlock");
}
}
/**
* Run test
*/
public int runTest(int monitorType) throws Exception {
int nTasks = maxPoolSize + 2;
ObjectName[] mbeanNames = new ObjectName[nTasks];
ObservedObject[] monitored = new ObservedObject[nTasks];
ObjectName[] monitorNames = new ObjectName[nTasks];
Monitor[] monitor = new Monitor[nTasks];
String[] attributes = { "Integer", "Double", "String" };
try {
echo(">>> CREATE MBeanServer");
MBeanServer server = MBeanServerFactory.newMBeanServer();
String domain = server.getDefaultDomain();
for (int i = 0; i < nTasks; i++) {
mbeanNames[i] =
new ObjectName(":type=ObservedObject,instance=" + (i + 1));
monitored[i] = new ObservedObject();
echo(">>> CREATE ObservedObject = " + mbeanNames[i].toString());
server.registerMBean(monitored[i], mbeanNames[i]);
switch (monitorType) {
case 1:
monitorNames[i] = new ObjectName(":type=CounterMonitor," +
"instance=" + (i + 1));
monitor[i] = new CounterMonitor();
break;
case 2:
monitorNames[i] = new ObjectName(":type=GaugeMonitor," +
"instance=" + (i + 1));
monitor[i] = new GaugeMonitor();
break;
case 3:
monitorNames[i] = new ObjectName(":type=StringMonitor," +
"instance=" + (i + 1));
monitor[i] = new StringMonitor();
break;
default:
echo("Unsupported monitor type");
return 1;
}
echo(">>> CREATE Monitor = " + monitorNames[i].toString());
server.registerMBean(monitor[i], monitorNames[i]);
monitor[i].addObservedObject(mbeanNames[i]);
monitor[i].setObservedAttribute(attributes[monitorType-1]);
monitor[i].setGranularityPeriod(50);
}
for (int j = 0; j < 2; j++) {
echo(">>> Start MONITORS");
for (int i = 0; i < nTasks; i++)
monitor[i].start();
echo(">>> MONITORS started");
doSleep(500);
echo(">>> Check FLAGS true");
for (int i = 0; i < nTasks; i++)
if (!monitored[i].called) {
echo("KO: At least one attribute was not called");
return 1;
}
echo(">>> FLAGS checked true");
echo(">>> Stop MONITORS");
for (int i = 0; i < nTasks; i++)
monitor[i].stop();
echo(">>> MONITORS stopped");
doSleep(500);
echo(">>> Set FLAGS to false");
for (int i = 0; i < nTasks; i++)
monitored[i].called = false;
echo(">>> FLAGS set to false");
echo(">>> Check FLAGS remain false");
for (int i = 0; i < nTasks; i++)
if (monitored[i].called) {
echo("KO: At least one attribute " +
"continued to get called");
return 1;
}
echo(">>> FLAGS checked false");
}
} finally {
for (int i = 0; i < nTasks; i++)
if (monitor[i] != null)
monitor[i].stop();
}
return 0;
}
/**
* Update the string and check for notifications
*/
public int stringMonitorNotification() throws Exception {
StringMonitor stringMonitor = new StringMonitor();
try {
// Create a new StringMonitor MBean and add it to the MBeanServer.
//
echo(">>> CREATE a new StringMonitor MBean");
ObjectName stringMonitorName = new ObjectName(
domain + ":type=" + StringMonitor.class.getName());
server.registerMBean(stringMonitor, stringMonitorName);
echo(">>> ADD a listener to the StringMonitor");
stringMonitor.addNotificationListener(this, null, null);
//
// MANAGEMENT OF A STANDARD MBEAN
//
echo(">>> SET the attributes of the StringMonitor:");
stringMonitor.addObservedObject(obsObjName);
echo("\tATTRIBUTE \"ObservedObject\" = " + obsObjName);
stringMonitor.setObservedAttribute("StringAttribute");
echo("\tATTRIBUTE \"ObservedAttribute\" = StringAttribute");
stringMonitor.setNotifyMatch(false);
echo("\tATTRIBUTE \"NotifyMatch\" = false");
stringMonitor.setNotifyDiffer(false);
echo("\tATTRIBUTE \"NotifyDiffer\" = false");
stringMonitor.setStringToCompare("dummy");
echo("\tATTRIBUTE \"StringToCompare\" = \"dummy\"");
int granularityperiod = 500;
stringMonitor.setGranularityPeriod(granularityperiod);
echo("\tATTRIBUTE \"GranularityPeriod\" = " + granularityperiod);
echo(">>> START the StringMonitor");
stringMonitor.start();
// Check if notification was received
//
doWait();
if (messageReceived) {
echo("\tOK: StringMonitor got RUNTIME_ERROR notification!");
} else {
echo("\tKO: StringMonitor did not get " +
"RUNTIME_ERROR notification!");
return 1;
}
} finally {
messageReceived = false;
if (stringMonitor != null)
stringMonitor.stop();
}
return 0;
}
/**
* Run test
*/
public int runTest(int monitorType) throws Exception {
ObjectName[] mbeanNames = new ObjectName[nTasks];
ObservedObject[] monitored = new ObservedObject[nTasks];
ObjectName[] monitorNames = new ObjectName[nTasks];
Monitor[] monitor = new Monitor[nTasks];
String[] attributes = { "Integer", "Double", "String" };
try {
echo(">>> CREATE MBeanServer");
MBeanServer server = MBeanServerFactory.newMBeanServer();
String domain = server.getDefaultDomain();
for (int i = 0; i < nTasks; i++) {
mbeanNames[i] =
new ObjectName(":type=ObservedObject,instance=" + (i + 1));
monitored[i] = new ObservedObject();
echo(">>> CREATE ObservedObject = " + mbeanNames[i].toString());
server.registerMBean(monitored[i], mbeanNames[i]);
switch (monitorType) {
case 1:
monitorNames[i] = new ObjectName(":type=CounterMonitor," +
"instance=" + (i + 1));
monitor[i] = new CounterMonitor();
break;
case 2:
monitorNames[i] = new ObjectName(":type=GaugeMonitor," +
"instance=" + (i + 1));
monitor[i] = new GaugeMonitor();
break;
case 3:
monitorNames[i] = new ObjectName(":type=StringMonitor," +
"instance=" + (i + 1));
monitor[i] = new StringMonitor();
break;
default:
echo("Unsupported monitor type");
return 1;
}
echo(">>> CREATE Monitor = " + monitorNames[i].toString());
server.registerMBean(monitor[i], monitorNames[i]);
monitor[i].addObservedObject(mbeanNames[i]);
monitor[i].setObservedAttribute(attributes[monitorType-1]);
monitor[i].setGranularityPeriod(50);
monitor[i].start();
}
if (!waiter.waiting(MAX_WAITING_TIME)) {
echo("Error, not all "+nTasks+" monitor tasks are called after "
+MAX_WAITING_TIME);
return 1;
}
} finally {
for (int i = 0; i < nTasks; i++)
if (monitor[i] != null)
monitor[i].stop();
}
echo("All "+nTasks+" monitors are called.");
return 0;
}
/**
* Update the string and check for notifications
*/
public int stringMonitorNotification() throws Exception {
StringMonitor stringMonitor = new StringMonitor();
try {
// Create a new StringMonitor MBean and add it to the MBeanServer.
//
echo(">>> CREATE a new StringMonitor MBean");
ObjectName stringMonitorName = new ObjectName(
domain + ":type=" + StringMonitor.class.getName());
server.registerMBean(stringMonitor, stringMonitorName);
echo(">>> ADD a listener to the StringMonitor");
stringMonitor.addNotificationListener(this, null, null);
//
// MANAGEMENT OF A STANDARD MBEAN
//
echo(">>> SET the attributes of the StringMonitor:");
stringMonitor.addObservedObject(obsObjName);
echo("\tATTRIBUTE \"ObservedObject\" = " + obsObjName);
stringMonitor.setObservedAttribute("StringAttribute");
echo("\tATTRIBUTE \"ObservedAttribute\" = StringAttribute");
stringMonitor.setNotifyMatch(false);
echo("\tATTRIBUTE \"NotifyMatch\" = false");
stringMonitor.setNotifyDiffer(false);
echo("\tATTRIBUTE \"NotifyDiffer\" = false");
stringMonitor.setStringToCompare("dummy");
echo("\tATTRIBUTE \"StringToCompare\" = \"dummy\"");
int granularityperiod = 500;
stringMonitor.setGranularityPeriod(granularityperiod);
echo("\tATTRIBUTE \"GranularityPeriod\" = " + granularityperiod);
echo(">>> START the StringMonitor");
stringMonitor.start();
// Check if notification was received
//
doWait();
if (messageReceived) {
echo("\tOK: StringMonitor got RUNTIME_ERROR notification!");
} else {
echo("\tKO: StringMonitor did not get " +
"RUNTIME_ERROR notification!");
return 1;
}
} finally {
messageReceived = false;
if (stringMonitor != null)
stringMonitor.stop();
}
return 0;
}
public static void main (String args[]) throws Exception {
ObjectName[] mbeanNames = new ObjectName[6];
ObservedObject[] monitored = new ObservedObject[6];
ObjectName[] monitorNames = new ObjectName[6];
Monitor[] monitor = new Monitor[6];
String[] principals = { "role1", "role2" };
String[] attributes = { "Integer", "Double", "String" };
try {
echo(">>> CREATE MBeanServer");
MBeanServer server = MBeanServerFactory.newMBeanServer();
for (int i = 0; i < 6; i++) {
mbeanNames[i] =
new ObjectName(":type=ObservedObject,instance=" + i);
monitored[i] = new ObservedObject();
echo(">>> CREATE ObservedObject = " + mbeanNames[i].toString());
server.registerMBean(monitored[i], mbeanNames[i]);
switch (i) {
case 0:
case 3:
monitorNames[i] =
new ObjectName(":type=CounterMonitor,instance=" + i);
monitor[i] = new CounterMonitor();
break;
case 1:
case 4:
monitorNames[i] =
new ObjectName(":type=GaugeMonitor,instance=" + i);
monitor[i] = new GaugeMonitor();
break;
case 2:
case 5:
monitorNames[i] =
new ObjectName(":type=StringMonitor,instance=" + i);
monitor[i] = new StringMonitor();
break;
}
echo(">>> CREATE Monitor = " + monitorNames[i].toString());
server.registerMBean(monitor[i], monitorNames[i]);
monitor[i].addObservedObject(mbeanNames[i]);
monitor[i].setObservedAttribute(attributes[i % 3]);
monitor[i].setGranularityPeriod(500);
final Monitor m = monitor[i];
Subject subject = new Subject();
echo(">>> RUN Principal = " + principals[i / 3]);
subject.getPrincipals().add(new JMXPrincipal(principals[i / 3]));
PrivilegedAction<Void> action = new PrivilegedAction<Void>() {
public Void run() {
m.start();
return null;
}
};
Subject.doAs(subject, action);
}
while(!testPrincipals(monitored, monitorNames, monitor, principals));
} finally {
for (int i = 0; i < 6; i++)
if (monitor[i] != null)
monitor[i].stop();
}
}
void run() throws Exception {
final MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
final ObjectName observedName = new ObjectName("a:b=c");
final ObjectName monitorName = new ObjectName("a:type=Monitor");
mbs.registerMBean(new StringMonitor(), monitorName);
final StringMonitorMBean monitorProxy =
JMX.newMBeanProxy(mbs, monitorName, StringMonitorMBean.class);
final TestMBean observedProxy =
JMX.newMBeanProxy(mbs, observedName, TestMBean.class);
final Runnable sensitiveThing = new Runnable() {
public void run() {
doSensitiveThing(monitorProxy, observedName);
}
};
final Runnable nothing = new Runnable() {
public void run() {}
};
final Runnable withinGetAttribute =
(when == When.IN_GET_ATTRIBUTE) ? sensitiveThing : nothing;
mbs.registerMBean(new Test(withinGetAttribute), observedName);
monitorProxy.addObservedObject(observedName);
monitorProxy.setObservedAttribute("Thing");
monitorProxy.setStringToCompare("old");
monitorProxy.setGranularityPeriod(10L); // 10 ms
monitorProxy.setNotifyDiffer(true);
final int initGetCount = observedProxy.getGetCount();
monitorProxy.start();
int getCount = initGetCount;
for (int i = 0; i < 500; i++) { // 500 * 10 = 5 seconds
getCount = observedProxy.getGetCount();
if (getCount != initGetCount)
break;
Thread.sleep(10);
}
if (getCount <= initGetCount)
throw new Exception("Test failed: presumable deadlock");
// This won't show up as a deadlock in CTRL-\ or in
// ThreadMXBean.findDeadlockedThreads(), because they don't
// see that thread A is waiting for thread B (B.join()), and
// thread B is waiting for a lock held by thread A
// Now we know the monitor has observed the initial value,
// so if we want to test notify behaviour we can trigger by
// exceeding the threshold.
if (when == When.IN_NOTIFY) {
final AtomicInteger notifCount = new AtomicInteger();
final NotificationListener listener = new NotificationListener() {
public void handleNotification(Notification n, Object h) {
Thread t = new Thread(sensitiveThing);
t.start();
try {
t.join();
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
notifCount.incrementAndGet();
}
};
mbs.addNotificationListener(monitorName, listener, null, null);
observedProxy.setThing("new");
for (int i = 0; i < 500 && notifCount.get() == 0; i++)
Thread.sleep(10);
if (notifCount.get() == 0)
throw new Exception("Test failed: presumable deadlock");
}
}
/**
* Run test
*/
public int runTest(int monitorType) throws Exception {
int nTasks = maxPoolSize + 2;
ObjectName[] mbeanNames = new ObjectName[nTasks];
ObservedObject[] monitored = new ObservedObject[nTasks];
ObjectName[] monitorNames = new ObjectName[nTasks];
Monitor[] monitor = new Monitor[nTasks];
String[] attributes = { "Integer", "Double", "String" };
try {
echo(">>> CREATE MBeanServer");
MBeanServer server = MBeanServerFactory.newMBeanServer();
String domain = server.getDefaultDomain();
for (int i = 0; i < nTasks; i++) {
mbeanNames[i] =
new ObjectName(":type=ObservedObject,instance=" + (i + 1));
monitored[i] = new ObservedObject();
echo(">>> CREATE ObservedObject = " + mbeanNames[i].toString());
server.registerMBean(monitored[i], mbeanNames[i]);
switch (monitorType) {
case 1:
monitorNames[i] = new ObjectName(":type=CounterMonitor," +
"instance=" + (i + 1));
monitor[i] = new CounterMonitor();
break;
case 2:
monitorNames[i] = new ObjectName(":type=GaugeMonitor," +
"instance=" + (i + 1));
monitor[i] = new GaugeMonitor();
break;
case 3:
monitorNames[i] = new ObjectName(":type=StringMonitor," +
"instance=" + (i + 1));
monitor[i] = new StringMonitor();
break;
default:
echo("Unsupported monitor type");
return 1;
}
echo(">>> CREATE Monitor = " + monitorNames[i].toString());
server.registerMBean(monitor[i], monitorNames[i]);
monitor[i].addObservedObject(mbeanNames[i]);
monitor[i].setObservedAttribute(attributes[monitorType-1]);
monitor[i].setGranularityPeriod(50);
}
for (int j = 0; j < 2; j++) {
echo(">>> Start MONITORS");
for (int i = 0; i < nTasks; i++)
monitor[i].start();
echo(">>> MONITORS started");
doSleep(500);
echo(">>> Check FLAGS true");
for (int i = 0; i < nTasks; i++)
if (!monitored[i].called) {
echo("KO: At least one attribute was not called");
return 1;
}
echo(">>> FLAGS checked true");
echo(">>> Stop MONITORS");
for (int i = 0; i < nTasks; i++)
monitor[i].stop();
echo(">>> MONITORS stopped");
doSleep(500);
echo(">>> Set FLAGS to false");
for (int i = 0; i < nTasks; i++)
monitored[i].called = false;
echo(">>> FLAGS set to false");
echo(">>> Check FLAGS remain false");
for (int i = 0; i < nTasks; i++)
if (monitored[i].called) {
echo("KO: At least one attribute " +
"continued to get called");
return 1;
}
echo(">>> FLAGS checked false");
}
} finally {
for (int i = 0; i < nTasks; i++)
if (monitor[i] != null)
monitor[i].stop();
}
return 0;
}
/**
* Update the string and check for notifications
*/
public int stringMonitorNotification() throws Exception {
StringMonitor stringMonitor = new StringMonitor();
try {
// Create a new StringMonitor MBean and add it to the MBeanServer.
//
echo(">>> CREATE a new StringMonitor MBean");
ObjectName stringMonitorName = new ObjectName(
domain + ":type=" + StringMonitor.class.getName());
server.registerMBean(stringMonitor, stringMonitorName);
echo(">>> ADD a listener to the StringMonitor");
stringMonitor.addNotificationListener(this, null, null);
//
// MANAGEMENT OF A STANDARD MBEAN
//
echo(">>> SET the attributes of the StringMonitor:");
stringMonitor.addObservedObject(obsObjName);
echo("\tATTRIBUTE \"ObservedObject\" = " + obsObjName);
stringMonitor.setObservedAttribute("StringAttribute");
echo("\tATTRIBUTE \"ObservedAttribute\" = StringAttribute");
stringMonitor.setNotifyMatch(false);
echo("\tATTRIBUTE \"NotifyMatch\" = false");
stringMonitor.setNotifyDiffer(false);
echo("\tATTRIBUTE \"NotifyDiffer\" = false");
stringMonitor.setStringToCompare("dummy");
echo("\tATTRIBUTE \"StringToCompare\" = \"dummy\"");
int granularityperiod = 500;
stringMonitor.setGranularityPeriod(granularityperiod);
echo("\tATTRIBUTE \"GranularityPeriod\" = " + granularityperiod);
echo(">>> START the StringMonitor");
stringMonitor.start();
// Check if notification was received
//
doWait();
if (messageReceived) {
echo("\tOK: StringMonitor got RUNTIME_ERROR notification!");
} else {
echo("\tKO: StringMonitor did not get " +
"RUNTIME_ERROR notification!");
return 1;
}
} finally {
messageReceived = false;
if (stringMonitor != null)
stringMonitor.stop();
}
return 0;
}
/**
* Run test
*/
public int runTest(int monitorType) throws Exception {
ObjectName[] mbeanNames = new ObjectName[nTasks];
ObservedObject[] monitored = new ObservedObject[nTasks];
ObjectName[] monitorNames = new ObjectName[nTasks];
Monitor[] monitor = new Monitor[nTasks];
String[] attributes = { "Integer", "Double", "String" };
try {
echo(">>> CREATE MBeanServer");
MBeanServer server = MBeanServerFactory.newMBeanServer();
String domain = server.getDefaultDomain();
for (int i = 0; i < nTasks; i++) {
mbeanNames[i] =
new ObjectName(":type=ObservedObject,instance=" + (i + 1));
monitored[i] = new ObservedObject();
echo(">>> CREATE ObservedObject = " + mbeanNames[i].toString());
server.registerMBean(monitored[i], mbeanNames[i]);
switch (monitorType) {
case 1:
monitorNames[i] = new ObjectName(":type=CounterMonitor," +
"instance=" + (i + 1));
monitor[i] = new CounterMonitor();
break;
case 2:
monitorNames[i] = new ObjectName(":type=GaugeMonitor," +
"instance=" + (i + 1));
monitor[i] = new GaugeMonitor();
break;
case 3:
monitorNames[i] = new ObjectName(":type=StringMonitor," +
"instance=" + (i + 1));
monitor[i] = new StringMonitor();
break;
default:
echo("Unsupported monitor type");
return 1;
}
echo(">>> CREATE Monitor = " + monitorNames[i].toString());
server.registerMBean(monitor[i], monitorNames[i]);
monitor[i].addObservedObject(mbeanNames[i]);
monitor[i].setObservedAttribute(attributes[monitorType-1]);
monitor[i].setGranularityPeriod(50);
monitor[i].start();
}
if (!waiter.waiting(MAX_WAITING_TIME)) {
echo("Error, not all "+nTasks+" monitor tasks are called after "
+MAX_WAITING_TIME);
return 1;
}
} finally {
for (int i = 0; i < nTasks; i++)
if (monitor[i] != null)
monitor[i].stop();
}
echo("All "+nTasks+" monitors are called.");
return 0;
}
/**
* Update the string and check for notifications
*/
public int stringMonitorNotification() throws Exception {
StringMonitor stringMonitor = new StringMonitor();
try {
// Create a new StringMonitor MBean and add it to the MBeanServer.
//
echo(">>> CREATE a new StringMonitor MBean");
ObjectName stringMonitorName = new ObjectName(
domain + ":type=" + StringMonitor.class.getName());
server.registerMBean(stringMonitor, stringMonitorName);
echo(">>> ADD a listener to the StringMonitor");
stringMonitor.addNotificationListener(this, null, null);
//
// MANAGEMENT OF A STANDARD MBEAN
//
echo(">>> SET the attributes of the StringMonitor:");
stringMonitor.addObservedObject(obsObjName);
echo("\tATTRIBUTE \"ObservedObject\" = " + obsObjName);
stringMonitor.setObservedAttribute("StringAttribute");
echo("\tATTRIBUTE \"ObservedAttribute\" = StringAttribute");
stringMonitor.setNotifyMatch(false);
echo("\tATTRIBUTE \"NotifyMatch\" = false");
stringMonitor.setNotifyDiffer(false);
echo("\tATTRIBUTE \"NotifyDiffer\" = false");
stringMonitor.setStringToCompare("dummy");
echo("\tATTRIBUTE \"StringToCompare\" = \"dummy\"");
int granularityperiod = 500;
stringMonitor.setGranularityPeriod(granularityperiod);
echo("\tATTRIBUTE \"GranularityPeriod\" = " + granularityperiod);
echo(">>> START the StringMonitor");
stringMonitor.start();
// Check if notification was received
//
doWait();
if (messageReceived) {
echo("\tOK: StringMonitor got RUNTIME_ERROR notification!");
} else {
echo("\tKO: StringMonitor did not get " +
"RUNTIME_ERROR notification!");
return 1;
}
} finally {
messageReceived = false;
if (stringMonitor != null)
stringMonitor.stop();
}
return 0;
}
public static void main (String args[]) throws Exception {
ObjectName[] mbeanNames = new ObjectName[6];
ObservedObject[] monitored = new ObservedObject[6];
ObjectName[] monitorNames = new ObjectName[6];
Monitor[] monitor = new Monitor[6];
String[] principals = { "role1", "role2" };
String[] attributes = { "Integer", "Double", "String" };
try {
echo(">>> CREATE MBeanServer");
MBeanServer server = MBeanServerFactory.newMBeanServer();
for (int i = 0; i < 6; i++) {
mbeanNames[i] =
new ObjectName(":type=ObservedObject,instance=" + i);
monitored[i] = new ObservedObject();
echo(">>> CREATE ObservedObject = " + mbeanNames[i].toString());
server.registerMBean(monitored[i], mbeanNames[i]);
switch (i) {
case 0:
case 3:
monitorNames[i] =
new ObjectName(":type=CounterMonitor,instance=" + i);
monitor[i] = new CounterMonitor();
break;
case 1:
case 4:
monitorNames[i] =
new ObjectName(":type=GaugeMonitor,instance=" + i);
monitor[i] = new GaugeMonitor();
break;
case 2:
case 5:
monitorNames[i] =
new ObjectName(":type=StringMonitor,instance=" + i);
monitor[i] = new StringMonitor();
break;
}
echo(">>> CREATE Monitor = " + monitorNames[i].toString());
server.registerMBean(monitor[i], monitorNames[i]);
monitor[i].addObservedObject(mbeanNames[i]);
monitor[i].setObservedAttribute(attributes[i % 3]);
monitor[i].setGranularityPeriod(500);
final Monitor m = monitor[i];
Subject subject = new Subject();
echo(">>> RUN Principal = " + principals[i / 3]);
subject.getPrincipals().add(new JMXPrincipal(principals[i / 3]));
PrivilegedAction<Void> action = new PrivilegedAction<Void>() {
public Void run() {
m.start();
return null;
}
};
Subject.doAs(subject, action);
}
while(!testPrincipals(monitored, monitorNames, monitor, principals));
} finally {
for (int i = 0; i < 6; i++)
if (monitor[i] != null)
monitor[i].stop();
}
}
void run() throws Exception {
final MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
final ObjectName observedName = new ObjectName("a:b=c");
final ObjectName monitorName = new ObjectName("a:type=Monitor");
mbs.registerMBean(new StringMonitor(), monitorName);
final StringMonitorMBean monitorProxy =
JMX.newMBeanProxy(mbs, monitorName, StringMonitorMBean.class);
final TestMBean observedProxy =
JMX.newMBeanProxy(mbs, observedName, TestMBean.class);
final Runnable sensitiveThing = new Runnable() {
public void run() {
doSensitiveThing(monitorProxy, observedName);
}
};
final Runnable nothing = new Runnable() {
public void run() {}
};
final Runnable withinGetAttribute =
(when == When.IN_GET_ATTRIBUTE) ? sensitiveThing : nothing;
mbs.registerMBean(new Test(withinGetAttribute), observedName);
monitorProxy.addObservedObject(observedName);
monitorProxy.setObservedAttribute("Thing");
monitorProxy.setStringToCompare("old");
monitorProxy.setGranularityPeriod(10L); // 10 ms
monitorProxy.setNotifyDiffer(true);
monitorProxy.start();
final int initGetCount = observedProxy.getGetCount();
int getCount = initGetCount;
for (int i = 0; i < 500; i++) { // 500 * 10 = 5 seconds
getCount = observedProxy.getGetCount();
if (getCount != initGetCount)
break;
Thread.sleep(10);
}
if (getCount <= initGetCount)
throw new Exception("Test failed: presumable deadlock");
// This won't show up as a deadlock in CTRL-\ or in
// ThreadMXBean.findDeadlockedThreads(), because they don't
// see that thread A is waiting for thread B (B.join()), and
// thread B is waiting for a lock held by thread A
// Now we know the monitor has observed the initial value,
// so if we want to test notify behaviour we can trigger by
// exceeding the threshold.
if (when == When.IN_NOTIFY) {
final AtomicInteger notifCount = new AtomicInteger();
final NotificationListener listener = new NotificationListener() {
public void handleNotification(Notification n, Object h) {
Thread t = new Thread(sensitiveThing);
t.start();
try {
t.join();
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
notifCount.incrementAndGet();
}
};
mbs.addNotificationListener(monitorName, listener, null, null);
observedProxy.setThing("new");
for (int i = 0; i < 500 && notifCount.get() == 0; i++)
Thread.sleep(10);
if (notifCount.get() == 0)
throw new Exception("Test failed: presumable deadlock");
}
}
/**
* Run test
*/
public int runTest(int monitorType) throws Exception {
int nTasks = maxPoolSize + 2;
ObjectName[] mbeanNames = new ObjectName[nTasks];
ObservedObject[] monitored = new ObservedObject[nTasks];
ObjectName[] monitorNames = new ObjectName[nTasks];
Monitor[] monitor = new Monitor[nTasks];
String[] attributes = { "Integer", "Double", "String" };
try {
echo(">>> CREATE MBeanServer");
MBeanServer server = MBeanServerFactory.newMBeanServer();
String domain = server.getDefaultDomain();
for (int i = 0; i < nTasks; i++) {
mbeanNames[i] =
new ObjectName(":type=ObservedObject,instance=" + (i + 1));
monitored[i] = new ObservedObject();
echo(">>> CREATE ObservedObject = " + mbeanNames[i].toString());
server.registerMBean(monitored[i], mbeanNames[i]);
switch (monitorType) {
case 1:
monitorNames[i] = new ObjectName(":type=CounterMonitor," +
"instance=" + (i + 1));
monitor[i] = new CounterMonitor();
break;
case 2:
monitorNames[i] = new ObjectName(":type=GaugeMonitor," +
"instance=" + (i + 1));
monitor[i] = new GaugeMonitor();
break;
case 3:
monitorNames[i] = new ObjectName(":type=StringMonitor," +
"instance=" + (i + 1));
monitor[i] = new StringMonitor();
break;
default:
echo("Unsupported monitor type");
return 1;
}
echo(">>> CREATE Monitor = " + monitorNames[i].toString());
server.registerMBean(monitor[i], monitorNames[i]);
monitor[i].addObservedObject(mbeanNames[i]);
monitor[i].setObservedAttribute(attributes[monitorType-1]);
monitor[i].setGranularityPeriod(50);
}
for (int j = 0; j < 2; j++) {
echo(">>> Start MONITORS");
for (int i = 0; i < nTasks; i++)
monitor[i].start();
echo(">>> MONITORS started");
doSleep(500);
echo(">>> Check FLAGS true");
for (int i = 0; i < nTasks; i++)
if (!monitored[i].called) {
echo("KO: At least one attribute was not called");
return 1;
}
echo(">>> FLAGS checked true");
echo(">>> Stop MONITORS");
for (int i = 0; i < nTasks; i++)
monitor[i].stop();
echo(">>> MONITORS stopped");
doSleep(500);
echo(">>> Set FLAGS to false");
for (int i = 0; i < nTasks; i++)
monitored[i].called = false;
echo(">>> FLAGS set to false");
echo(">>> Check FLAGS remain false");
for (int i = 0; i < nTasks; i++)
if (monitored[i].called) {
echo("KO: At least one attribute " +
"continued to get called");
return 1;
}
echo(">>> FLAGS checked false");
}
} finally {
for (int i = 0; i < nTasks; i++)
if (monitor[i] != null)
monitor[i].stop();
}
return 0;
}
/**
* Update the string and check for notifications
*/
public int stringMonitorNotification() throws Exception {
StringMonitor stringMonitor = new StringMonitor();
try {
// Create a new StringMonitor MBean and add it to the MBeanServer.
//
echo(">>> CREATE a new StringMonitor MBean");
ObjectName stringMonitorName = new ObjectName(
domain + ":type=" + StringMonitor.class.getName());
server.registerMBean(stringMonitor, stringMonitorName);
echo(">>> ADD a listener to the StringMonitor");
stringMonitor.addNotificationListener(this, null, null);
//
// MANAGEMENT OF A STANDARD MBEAN
//
echo(">>> SET the attributes of the StringMonitor:");
stringMonitor.addObservedObject(obsObjName);
echo("\tATTRIBUTE \"ObservedObject\" = " + obsObjName);
stringMonitor.setObservedAttribute("StringAttribute");
echo("\tATTRIBUTE \"ObservedAttribute\" = StringAttribute");
stringMonitor.setNotifyMatch(false);
echo("\tATTRIBUTE \"NotifyMatch\" = false");
stringMonitor.setNotifyDiffer(false);
echo("\tATTRIBUTE \"NotifyDiffer\" = false");
stringMonitor.setStringToCompare("dummy");
echo("\tATTRIBUTE \"StringToCompare\" = \"dummy\"");
int granularityperiod = 500;
stringMonitor.setGranularityPeriod(granularityperiod);
echo("\tATTRIBUTE \"GranularityPeriod\" = " + granularityperiod);
echo(">>> START the StringMonitor");
stringMonitor.start();
// Check if notification was received
//
doWait();
if (messageReceived) {
echo("\tOK: StringMonitor got RUNTIME_ERROR notification!");
} else {
echo("\tKO: StringMonitor did not get " +
"RUNTIME_ERROR notification!");
return 1;
}
} finally {
messageReceived = false;
if (stringMonitor != null)
stringMonitor.stop();
}
return 0;
}
/**
* Run test
*/
public int runTest(int monitorType) throws Exception {
ObjectName[] mbeanNames = new ObjectName[nTasks];
ObservedObject[] monitored = new ObservedObject[nTasks];
ObjectName[] monitorNames = new ObjectName[nTasks];
Monitor[] monitor = new Monitor[nTasks];
String[] attributes = { "Integer", "Double", "String" };
try {
echo(">>> CREATE MBeanServer");
MBeanServer server = MBeanServerFactory.newMBeanServer();
String domain = server.getDefaultDomain();
for (int i = 0; i < nTasks; i++) {
mbeanNames[i] =
new ObjectName(":type=ObservedObject,instance=" + (i + 1));
monitored[i] = new ObservedObject();
echo(">>> CREATE ObservedObject = " + mbeanNames[i].toString());
server.registerMBean(monitored[i], mbeanNames[i]);
switch (monitorType) {
case 1:
monitorNames[i] = new ObjectName(":type=CounterMonitor," +
"instance=" + (i + 1));
monitor[i] = new CounterMonitor();
break;
case 2:
monitorNames[i] = new ObjectName(":type=GaugeMonitor," +
"instance=" + (i + 1));
monitor[i] = new GaugeMonitor();
break;
case 3:
monitorNames[i] = new ObjectName(":type=StringMonitor," +
"instance=" + (i + 1));
monitor[i] = new StringMonitor();
break;
default:
echo("Unsupported monitor type");
return 1;
}
echo(">>> CREATE Monitor = " + monitorNames[i].toString());
server.registerMBean(monitor[i], monitorNames[i]);
monitor[i].addObservedObject(mbeanNames[i]);
monitor[i].setObservedAttribute(attributes[monitorType-1]);
monitor[i].setGranularityPeriod(50);
monitor[i].start();
}
if (!waiter.waiting(MAX_WAITING_TIME)) {
echo("Error, not all "+nTasks+" monitor tasks are called after "
+MAX_WAITING_TIME);
return 1;
}
} finally {
for (int i = 0; i < nTasks; i++)
if (monitor[i] != null)
monitor[i].stop();
}
echo("All "+nTasks+" monitors are called.");
return 0;
}
/**
* Update the string and check for notifications
*/
public int stringMonitorNotification() throws Exception {
StringMonitor stringMonitor = new StringMonitor();
try {
// Create a new StringMonitor MBean and add it to the MBeanServer.
//
echo(">>> CREATE a new StringMonitor MBean");
ObjectName stringMonitorName = new ObjectName(
domain + ":type=" + StringMonitor.class.getName());
server.registerMBean(stringMonitor, stringMonitorName);
echo(">>> ADD a listener to the StringMonitor");
stringMonitor.addNotificationListener(this, null, null);
//
// MANAGEMENT OF A STANDARD MBEAN
//
echo(">>> SET the attributes of the StringMonitor:");
stringMonitor.addObservedObject(obsObjName);
echo("\tATTRIBUTE \"ObservedObject\" = " + obsObjName);
stringMonitor.setObservedAttribute("StringAttribute");
echo("\tATTRIBUTE \"ObservedAttribute\" = StringAttribute");
stringMonitor.setNotifyMatch(false);
echo("\tATTRIBUTE \"NotifyMatch\" = false");
stringMonitor.setNotifyDiffer(false);
echo("\tATTRIBUTE \"NotifyDiffer\" = false");
stringMonitor.setStringToCompare("dummy");
echo("\tATTRIBUTE \"StringToCompare\" = \"dummy\"");
int granularityperiod = 500;
stringMonitor.setGranularityPeriod(granularityperiod);
echo("\tATTRIBUTE \"GranularityPeriod\" = " + granularityperiod);
echo(">>> START the StringMonitor");
stringMonitor.start();
// Check if notification was received
//
doWait();
if (messageReceived) {
echo("\tOK: StringMonitor got RUNTIME_ERROR notification!");
} else {
echo("\tKO: StringMonitor did not get " +
"RUNTIME_ERROR notification!");
return 1;
}
} finally {
messageReceived = false;
if (stringMonitor != null)
stringMonitor.stop();
}
return 0;
}
public static void main (String args[]) throws Exception {
ObjectName[] mbeanNames = new ObjectName[6];
ObservedObject[] monitored = new ObservedObject[6];
ObjectName[] monitorNames = new ObjectName[6];
Monitor[] monitor = new Monitor[6];
String[] principals = { "role1", "role2" };
String[] attributes = { "Integer", "Double", "String" };
try {
echo(">>> CREATE MBeanServer");
MBeanServer server = MBeanServerFactory.newMBeanServer();
for (int i = 0; i < 6; i++) {
mbeanNames[i] =
new ObjectName(":type=ObservedObject,instance=" + i);
monitored[i] = new ObservedObject();
echo(">>> CREATE ObservedObject = " + mbeanNames[i].toString());
server.registerMBean(monitored[i], mbeanNames[i]);
switch (i) {
case 0:
case 3:
monitorNames[i] =
new ObjectName(":type=CounterMonitor,instance=" + i);
monitor[i] = new CounterMonitor();
break;
case 1:
case 4:
monitorNames[i] =
new ObjectName(":type=GaugeMonitor,instance=" + i);
monitor[i] = new GaugeMonitor();
break;
case 2:
case 5:
monitorNames[i] =
new ObjectName(":type=StringMonitor,instance=" + i);
monitor[i] = new StringMonitor();
break;
}
echo(">>> CREATE Monitor = " + monitorNames[i].toString());
server.registerMBean(monitor[i], monitorNames[i]);
monitor[i].addObservedObject(mbeanNames[i]);
monitor[i].setObservedAttribute(attributes[i % 3]);
monitor[i].setGranularityPeriod(500);
final Monitor m = monitor[i];
Subject subject = new Subject();
echo(">>> RUN Principal = " + principals[i / 3]);
subject.getPrincipals().add(new JMXPrincipal(principals[i / 3]));
PrivilegedAction<Void> action = new PrivilegedAction<Void>() {
public Void run() {
m.start();
return null;
}
};
Subject.doAs(subject, action);
}
while(!testPrincipals(monitored, monitorNames, monitor, principals));
} finally {
for (int i = 0; i < 6; i++)
if (monitor[i] != null)
monitor[i].stop();
}
}
void run() throws Exception {
final MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
final ObjectName observedName = new ObjectName("a:b=c");
final ObjectName monitorName = new ObjectName("a:type=Monitor");
mbs.registerMBean(new StringMonitor(), monitorName);
final StringMonitorMBean monitorProxy =
JMX.newMBeanProxy(mbs, monitorName, StringMonitorMBean.class);
final TestMBean observedProxy =
JMX.newMBeanProxy(mbs, observedName, TestMBean.class);
final Runnable sensitiveThing = new Runnable() {
public void run() {
doSensitiveThing(monitorProxy, observedName);
}
};
final Runnable nothing = new Runnable() {
public void run() {}
};
final Runnable withinGetAttribute =
(when == When.IN_GET_ATTRIBUTE) ? sensitiveThing : nothing;
mbs.registerMBean(new Test(withinGetAttribute), observedName);
monitorProxy.addObservedObject(observedName);
monitorProxy.setObservedAttribute("Thing");
monitorProxy.setStringToCompare("old");
monitorProxy.setGranularityPeriod(10L); // 10 ms
monitorProxy.setNotifyDiffer(true);
final int initGetCount = observedProxy.getGetCount();
monitorProxy.start();
int getCount = initGetCount;
for (int i = 0; i < 500; i++) { // 500 * 10 = 5 seconds
getCount = observedProxy.getGetCount();
if (getCount != initGetCount)
break;
Thread.sleep(10);
}
if (getCount <= initGetCount)
throw new Exception("Test failed: presumable deadlock");
// This won't show up as a deadlock in CTRL-\ or in
// ThreadMXBean.findDeadlockedThreads(), because they don't
// see that thread A is waiting for thread B (B.join()), and
// thread B is waiting for a lock held by thread A
// Now we know the monitor has observed the initial value,
// so if we want to test notify behaviour we can trigger by
// exceeding the threshold.
if (when == When.IN_NOTIFY) {
final AtomicInteger notifCount = new AtomicInteger();
final NotificationListener listener = new NotificationListener() {
public void handleNotification(Notification n, Object h) {
Thread t = new Thread(sensitiveThing);
t.start();
try {
t.join();
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
notifCount.incrementAndGet();
}
};
mbs.addNotificationListener(monitorName, listener, null, null);
observedProxy.setThing("new");
for (int i = 0; i < 500 && notifCount.get() == 0; i++)
Thread.sleep(10);
if (notifCount.get() == 0)
throw new Exception("Test failed: presumable deadlock");
}
}
/**
* Run test
*/
public int runTest(int monitorType) throws Exception {
int nTasks = maxPoolSize + 2;
ObjectName[] mbeanNames = new ObjectName[nTasks];
ObservedObject[] monitored = new ObservedObject[nTasks];
ObjectName[] monitorNames = new ObjectName[nTasks];
Monitor[] monitor = new Monitor[nTasks];
String[] attributes = { "Integer", "Double", "String" };
try {
echo(">>> CREATE MBeanServer");
MBeanServer server = MBeanServerFactory.newMBeanServer();
String domain = server.getDefaultDomain();
for (int i = 0; i < nTasks; i++) {
mbeanNames[i] =
new ObjectName(":type=ObservedObject,instance=" + (i + 1));
monitored[i] = new ObservedObject();
echo(">>> CREATE ObservedObject = " + mbeanNames[i].toString());
server.registerMBean(monitored[i], mbeanNames[i]);
switch (monitorType) {
case 1:
monitorNames[i] = new ObjectName(":type=CounterMonitor," +
"instance=" + (i + 1));
monitor[i] = new CounterMonitor();
break;
case 2:
monitorNames[i] = new ObjectName(":type=GaugeMonitor," +
"instance=" + (i + 1));
monitor[i] = new GaugeMonitor();
break;
case 3:
monitorNames[i] = new ObjectName(":type=StringMonitor," +
"instance=" + (i + 1));
monitor[i] = new StringMonitor();
break;
default:
echo("Unsupported monitor type");
return 1;
}
echo(">>> CREATE Monitor = " + monitorNames[i].toString());
server.registerMBean(monitor[i], monitorNames[i]);
monitor[i].addObservedObject(mbeanNames[i]);
monitor[i].setObservedAttribute(attributes[monitorType-1]);
monitor[i].setGranularityPeriod(50);
}
for (int j = 0; j < 2; j++) {
echo(">>> Start MONITORS");
for (int i = 0; i < nTasks; i++)
monitor[i].start();
echo(">>> MONITORS started");
doSleep(500);
echo(">>> Check FLAGS true");
for (int i = 0; i < nTasks; i++)
if (!monitored[i].called) {
echo("KO: At least one attribute was not called");
return 1;
}
echo(">>> FLAGS checked true");
echo(">>> Stop MONITORS");
for (int i = 0; i < nTasks; i++)
monitor[i].stop();
echo(">>> MONITORS stopped");
doSleep(500);
echo(">>> Set FLAGS to false");
for (int i = 0; i < nTasks; i++)
monitored[i].called = false;
echo(">>> FLAGS set to false");
echo(">>> Check FLAGS remain false");
for (int i = 0; i < nTasks; i++)
if (monitored[i].called) {
echo("KO: At least one attribute " +
"continued to get called");
return 1;
}
echo(">>> FLAGS checked false");
}
} finally {
for (int i = 0; i < nTasks; i++)
if (monitor[i] != null)
monitor[i].stop();
}
return 0;
}
/**
* Update the string and check for notifications
*/
public int stringMonitorNotification() throws Exception {
StringMonitor stringMonitor = new StringMonitor();
try {
// Create a new StringMonitor MBean and add it to the MBeanServer.
//
echo(">>> CREATE a new StringMonitor MBean");
ObjectName stringMonitorName = new ObjectName(
domain + ":type=" + StringMonitor.class.getName());
server.registerMBean(stringMonitor, stringMonitorName);
echo(">>> ADD a listener to the StringMonitor");
stringMonitor.addNotificationListener(this, null, null);
//
// MANAGEMENT OF A STANDARD MBEAN
//
echo(">>> SET the attributes of the StringMonitor:");
stringMonitor.addObservedObject(obsObjName);
echo("\tATTRIBUTE \"ObservedObject\" = " + obsObjName);
stringMonitor.setObservedAttribute("StringAttribute");
echo("\tATTRIBUTE \"ObservedAttribute\" = StringAttribute");
stringMonitor.setNotifyMatch(false);
echo("\tATTRIBUTE \"NotifyMatch\" = false");
stringMonitor.setNotifyDiffer(false);
echo("\tATTRIBUTE \"NotifyDiffer\" = false");
stringMonitor.setStringToCompare("dummy");
echo("\tATTRIBUTE \"StringToCompare\" = \"dummy\"");
int granularityperiod = 500;
stringMonitor.setGranularityPeriod(granularityperiod);
echo("\tATTRIBUTE \"GranularityPeriod\" = " + granularityperiod);
echo(">>> START the StringMonitor");
stringMonitor.start();
// Check if notification was received
//
doWait();
if (messageReceived) {
echo("\tOK: StringMonitor got RUNTIME_ERROR notification!");
} else {
echo("\tKO: StringMonitor did not get " +
"RUNTIME_ERROR notification!");
return 1;
}
} finally {
messageReceived = false;
if (stringMonitor != null)
stringMonitor.stop();
}
return 0;
}
/**
* Run test
*/
public int runTest(int monitorType) throws Exception {
ObjectName[] mbeanNames = new ObjectName[nTasks];
ObservedObject[] monitored = new ObservedObject[nTasks];
ObjectName[] monitorNames = new ObjectName[nTasks];
Monitor[] monitor = new Monitor[nTasks];
String[] attributes = { "Integer", "Double", "String" };
try {
echo(">>> CREATE MBeanServer");
MBeanServer server = MBeanServerFactory.newMBeanServer();
String domain = server.getDefaultDomain();
for (int i = 0; i < nTasks; i++) {
mbeanNames[i] =
new ObjectName(":type=ObservedObject,instance=" + (i + 1));
monitored[i] = new ObservedObject();
echo(">>> CREATE ObservedObject = " + mbeanNames[i].toString());
server.registerMBean(monitored[i], mbeanNames[i]);
switch (monitorType) {
case 1:
monitorNames[i] = new ObjectName(":type=CounterMonitor," +
"instance=" + (i + 1));
monitor[i] = new CounterMonitor();
break;
case 2:
monitorNames[i] = new ObjectName(":type=GaugeMonitor," +
"instance=" + (i + 1));
monitor[i] = new GaugeMonitor();
break;
case 3:
monitorNames[i] = new ObjectName(":type=StringMonitor," +
"instance=" + (i + 1));
monitor[i] = new StringMonitor();
break;
default:
echo("Unsupported monitor type");
return 1;
}
echo(">>> CREATE Monitor = " + monitorNames[i].toString());
server.registerMBean(monitor[i], monitorNames[i]);
monitor[i].addObservedObject(mbeanNames[i]);
monitor[i].setObservedAttribute(attributes[monitorType-1]);
monitor[i].setGranularityPeriod(50);
monitor[i].start();
}
if (!waiter.waiting(MAX_WAITING_TIME)) {
echo("Error, not all "+nTasks+" monitor tasks are called after "
+MAX_WAITING_TIME);
return 1;
}
} finally {
for (int i = 0; i < nTasks; i++)
if (monitor[i] != null)
monitor[i].stop();
}
echo("All "+nTasks+" monitors are called.");
return 0;
}
/**
* Update the string and check for notifications
*/
public int stringMonitorNotification() throws Exception {
StringMonitor stringMonitor = new StringMonitor();
try {
// Create a new StringMonitor MBean and add it to the MBeanServer.
//
echo(">>> CREATE a new StringMonitor MBean");
ObjectName stringMonitorName = new ObjectName(
domain + ":type=" + StringMonitor.class.getName());
server.registerMBean(stringMonitor, stringMonitorName);
echo(">>> ADD a listener to the StringMonitor");
stringMonitor.addNotificationListener(this, null, null);
//
// MANAGEMENT OF A STANDARD MBEAN
//
echo(">>> SET the attributes of the StringMonitor:");
stringMonitor.addObservedObject(obsObjName);
echo("\tATTRIBUTE \"ObservedObject\" = " + obsObjName);
stringMonitor.setObservedAttribute("StringAttribute");
echo("\tATTRIBUTE \"ObservedAttribute\" = StringAttribute");
stringMonitor.setNotifyMatch(false);
echo("\tATTRIBUTE \"NotifyMatch\" = false");
stringMonitor.setNotifyDiffer(false);
echo("\tATTRIBUTE \"NotifyDiffer\" = false");
stringMonitor.setStringToCompare("dummy");
echo("\tATTRIBUTE \"StringToCompare\" = \"dummy\"");
int granularityperiod = 500;
stringMonitor.setGranularityPeriod(granularityperiod);
echo("\tATTRIBUTE \"GranularityPeriod\" = " + granularityperiod);
echo(">>> START the StringMonitor");
stringMonitor.start();
// Check if notification was received
//
doWait();
if (messageReceived) {
echo("\tOK: StringMonitor got RUNTIME_ERROR notification!");
} else {
echo("\tKO: StringMonitor did not get " +
"RUNTIME_ERROR notification!");
return 1;
}
} finally {
messageReceived = false;
if (stringMonitor != null)
stringMonitor.stop();
}
return 0;
}
public static void main (String args[]) throws Exception {
ObjectName[] mbeanNames = new ObjectName[6];
ObservedObject[] monitored = new ObservedObject[6];
ObjectName[] monitorNames = new ObjectName[6];
Monitor[] monitor = new Monitor[6];
String[] principals = { "role1", "role2" };
String[] attributes = { "Integer", "Double", "String" };
try {
echo(">>> CREATE MBeanServer");
MBeanServer server = MBeanServerFactory.newMBeanServer();
for (int i = 0; i < 6; i++) {
mbeanNames[i] =
new ObjectName(":type=ObservedObject,instance=" + i);
monitored[i] = new ObservedObject();
echo(">>> CREATE ObservedObject = " + mbeanNames[i].toString());
server.registerMBean(monitored[i], mbeanNames[i]);
switch (i) {
case 0:
case 3:
monitorNames[i] =
new ObjectName(":type=CounterMonitor,instance=" + i);
monitor[i] = new CounterMonitor();
break;
case 1:
case 4:
monitorNames[i] =
new ObjectName(":type=GaugeMonitor,instance=" + i);
monitor[i] = new GaugeMonitor();
break;
case 2:
case 5:
monitorNames[i] =
new ObjectName(":type=StringMonitor,instance=" + i);
monitor[i] = new StringMonitor();
break;
}
echo(">>> CREATE Monitor = " + monitorNames[i].toString());
server.registerMBean(monitor[i], monitorNames[i]);
monitor[i].addObservedObject(mbeanNames[i]);
monitor[i].setObservedAttribute(attributes[i % 3]);
monitor[i].setGranularityPeriod(500);
final Monitor m = monitor[i];
Subject subject = new Subject();
echo(">>> RUN Principal = " + principals[i / 3]);
subject.getPrincipals().add(new JMXPrincipal(principals[i / 3]));
PrivilegedAction<Void> action = new PrivilegedAction<Void>() {
public Void run() {
m.start();
return null;
}
};
Subject.doAs(subject, action);
}
while(!testPrincipals(monitored, monitorNames, monitor, principals));
} finally {
for (int i = 0; i < 6; i++)
if (monitor[i] != null)
monitor[i].stop();
}
}
void run() throws Exception {
final MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
final ObjectName observedName = new ObjectName("a:b=c");
final ObjectName monitorName = new ObjectName("a:type=Monitor");
mbs.registerMBean(new StringMonitor(), monitorName);
final StringMonitorMBean monitorProxy =
JMX.newMBeanProxy(mbs, monitorName, StringMonitorMBean.class);
final TestMBean observedProxy =
JMX.newMBeanProxy(mbs, observedName, TestMBean.class);
final Runnable sensitiveThing = new Runnable() {
public void run() {
doSensitiveThing(monitorProxy, observedName);
}
};
final Runnable nothing = new Runnable() {
public void run() {}
};
final Runnable withinGetAttribute =
(when == When.IN_GET_ATTRIBUTE) ? sensitiveThing : nothing;
mbs.registerMBean(new Test(withinGetAttribute), observedName);
monitorProxy.addObservedObject(observedName);
monitorProxy.setObservedAttribute("Thing");
monitorProxy.setStringToCompare("old");
monitorProxy.setGranularityPeriod(10L); // 10 ms
monitorProxy.setNotifyDiffer(true);
final int initGetCount = observedProxy.getGetCount();
monitorProxy.start();
int getCount = initGetCount;
for (int i = 0; i < 500; i++) { // 500 * 10 = 5 seconds
getCount = observedProxy.getGetCount();
if (getCount != initGetCount)
break;
Thread.sleep(10);
}
if (getCount <= initGetCount)
throw new Exception("Test failed: presumable deadlock");
// This won't show up as a deadlock in CTRL-\ or in
// ThreadMXBean.findDeadlockedThreads(), because they don't
// see that thread A is waiting for thread B (B.join()), and
// thread B is waiting for a lock held by thread A
// Now we know the monitor has observed the initial value,
// so if we want to test notify behaviour we can trigger by
// exceeding the threshold.
if (when == When.IN_NOTIFY) {
final AtomicInteger notifCount = new AtomicInteger();
final NotificationListener listener = new NotificationListener() {
public void handleNotification(Notification n, Object h) {
Thread t = new Thread(sensitiveThing);
t.start();
try {
t.join();
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
notifCount.incrementAndGet();
}
};
mbs.addNotificationListener(monitorName, listener, null, null);
observedProxy.setThing("new");
for (int i = 0; i < 500 && notifCount.get() == 0; i++)
Thread.sleep(10);
if (notifCount.get() == 0)
throw new Exception("Test failed: presumable deadlock");
}
}
/**
* Run test
*/
public int runTest(int monitorType) throws Exception {
int nTasks = maxPoolSize + 2;
ObjectName[] mbeanNames = new ObjectName[nTasks];
ObservedObject[] monitored = new ObservedObject[nTasks];
ObjectName[] monitorNames = new ObjectName[nTasks];
Monitor[] monitor = new Monitor[nTasks];
String[] attributes = { "Integer", "Double", "String" };
try {
echo(">>> CREATE MBeanServer");
MBeanServer server = MBeanServerFactory.newMBeanServer();
String domain = server.getDefaultDomain();
for (int i = 0; i < nTasks; i++) {
mbeanNames[i] =
new ObjectName(":type=ObservedObject,instance=" + (i + 1));
monitored[i] = new ObservedObject();
echo(">>> CREATE ObservedObject = " + mbeanNames[i].toString());
server.registerMBean(monitored[i], mbeanNames[i]);
switch (monitorType) {
case 1:
monitorNames[i] = new ObjectName(":type=CounterMonitor," +
"instance=" + (i + 1));
monitor[i] = new CounterMonitor();
break;
case 2:
monitorNames[i] = new ObjectName(":type=GaugeMonitor," +
"instance=" + (i + 1));
monitor[i] = new GaugeMonitor();
break;
case 3:
monitorNames[i] = new ObjectName(":type=StringMonitor," +
"instance=" + (i + 1));
monitor[i] = new StringMonitor();
break;
default:
echo("Unsupported monitor type");
return 1;
}
echo(">>> CREATE Monitor = " + monitorNames[i].toString());
server.registerMBean(monitor[i], monitorNames[i]);
monitor[i].addObservedObject(mbeanNames[i]);
monitor[i].setObservedAttribute(attributes[monitorType-1]);
monitor[i].setGranularityPeriod(50);
}
for (int j = 0; j < 2; j++) {
echo(">>> Start MONITORS");
for (int i = 0; i < nTasks; i++)
monitor[i].start();
echo(">>> MONITORS started");
doSleep(500);
echo(">>> Check FLAGS true");
for (int i = 0; i < nTasks; i++)
if (!monitored[i].called) {
echo("KO: At least one attribute was not called");
return 1;
}
echo(">>> FLAGS checked true");
echo(">>> Stop MONITORS");
for (int i = 0; i < nTasks; i++)
monitor[i].stop();
echo(">>> MONITORS stopped");
doSleep(500);
echo(">>> Set FLAGS to false");
for (int i = 0; i < nTasks; i++)
monitored[i].called = false;
echo(">>> FLAGS set to false");
echo(">>> Check FLAGS remain false");
for (int i = 0; i < nTasks; i++)
if (monitored[i].called) {
echo("KO: At least one attribute " +
"continued to get called");
return 1;
}
echo(">>> FLAGS checked false");
}
} finally {
for (int i = 0; i < nTasks; i++)
if (monitor[i] != null)
monitor[i].stop();
}
return 0;
}
/**
* Update the string and check for notifications
*/
public int stringMonitorNotification() throws Exception {
StringMonitor stringMonitor = new StringMonitor();
try {
// Create a new StringMonitor MBean and add it to the MBeanServer.
//
echo(">>> CREATE a new StringMonitor MBean");
ObjectName stringMonitorName = new ObjectName(
domain + ":type=" + StringMonitor.class.getName());
server.registerMBean(stringMonitor, stringMonitorName);
echo(">>> ADD a listener to the StringMonitor");
stringMonitor.addNotificationListener(this, null, null);
//
// MANAGEMENT OF A STANDARD MBEAN
//
echo(">>> SET the attributes of the StringMonitor:");
stringMonitor.addObservedObject(obsObjName);
echo("\tATTRIBUTE \"ObservedObject\" = " + obsObjName);
stringMonitor.setObservedAttribute("StringAttribute");
echo("\tATTRIBUTE \"ObservedAttribute\" = StringAttribute");
stringMonitor.setNotifyMatch(false);
echo("\tATTRIBUTE \"NotifyMatch\" = false");
stringMonitor.setNotifyDiffer(false);
echo("\tATTRIBUTE \"NotifyDiffer\" = false");
stringMonitor.setStringToCompare("dummy");
echo("\tATTRIBUTE \"StringToCompare\" = \"dummy\"");
int granularityperiod = 500;
stringMonitor.setGranularityPeriod(granularityperiod);
echo("\tATTRIBUTE \"GranularityPeriod\" = " + granularityperiod);
echo(">>> START the StringMonitor");
stringMonitor.start();
// Check if notification was received
//
doWait();
if (messageReceived) {
echo("\tOK: StringMonitor got RUNTIME_ERROR notification!");
} else {
echo("\tKO: StringMonitor did not get " +
"RUNTIME_ERROR notification!");
return 1;
}
} finally {
messageReceived = false;
if (stringMonitor != null)
stringMonitor.stop();
}
return 0;
}
/**
* Run test
*/
public int runTest(int monitorType) throws Exception {
ObjectName[] mbeanNames = new ObjectName[nTasks];
ObservedObject[] monitored = new ObservedObject[nTasks];
ObjectName[] monitorNames = new ObjectName[nTasks];
Monitor[] monitor = new Monitor[nTasks];
String[] attributes = { "Integer", "Double", "String" };
try {
echo(">>> CREATE MBeanServer");
MBeanServer server = MBeanServerFactory.newMBeanServer();
String domain = server.getDefaultDomain();
for (int i = 0; i < nTasks; i++) {
mbeanNames[i] =
new ObjectName(":type=ObservedObject,instance=" + (i + 1));
monitored[i] = new ObservedObject();
echo(">>> CREATE ObservedObject = " + mbeanNames[i].toString());
server.registerMBean(monitored[i], mbeanNames[i]);
switch (monitorType) {
case 1:
monitorNames[i] = new ObjectName(":type=CounterMonitor," +
"instance=" + (i + 1));
monitor[i] = new CounterMonitor();
break;
case 2:
monitorNames[i] = new ObjectName(":type=GaugeMonitor," +
"instance=" + (i + 1));
monitor[i] = new GaugeMonitor();
break;
case 3:
monitorNames[i] = new ObjectName(":type=StringMonitor," +
"instance=" + (i + 1));
monitor[i] = new StringMonitor();
break;
default:
echo("Unsupported monitor type");
return 1;
}
echo(">>> CREATE Monitor = " + monitorNames[i].toString());
server.registerMBean(monitor[i], monitorNames[i]);
monitor[i].addObservedObject(mbeanNames[i]);
monitor[i].setObservedAttribute(attributes[monitorType-1]);
monitor[i].setGranularityPeriod(50);
monitor[i].start();
}
if (!waiter.waiting(MAX_WAITING_TIME)) {
echo("Error, not all "+nTasks+" monitor tasks are called after "
+MAX_WAITING_TIME);
return 1;
}
} finally {
for (int i = 0; i < nTasks; i++)
if (monitor[i] != null)
monitor[i].stop();
}
echo("All "+nTasks+" monitors are called.");
return 0;
}
/**
* Update the string and check for notifications
*/
public int stringMonitorNotification() throws Exception {
StringMonitor stringMonitor = new StringMonitor();
try {
// Create a new StringMonitor MBean and add it to the MBeanServer.
//
echo(">>> CREATE a new StringMonitor MBean");
ObjectName stringMonitorName = new ObjectName(
domain + ":type=" + StringMonitor.class.getName());
server.registerMBean(stringMonitor, stringMonitorName);
echo(">>> ADD a listener to the StringMonitor");
stringMonitor.addNotificationListener(this, null, null);
//
// MANAGEMENT OF A STANDARD MBEAN
//
echo(">>> SET the attributes of the StringMonitor:");
stringMonitor.addObservedObject(obsObjName);
echo("\tATTRIBUTE \"ObservedObject\" = " + obsObjName);
stringMonitor.setObservedAttribute("StringAttribute");
echo("\tATTRIBUTE \"ObservedAttribute\" = StringAttribute");
stringMonitor.setNotifyMatch(false);
echo("\tATTRIBUTE \"NotifyMatch\" = false");
stringMonitor.setNotifyDiffer(false);
echo("\tATTRIBUTE \"NotifyDiffer\" = false");
stringMonitor.setStringToCompare("dummy");
echo("\tATTRIBUTE \"StringToCompare\" = \"dummy\"");
int granularityperiod = 500;
stringMonitor.setGranularityPeriod(granularityperiod);
echo("\tATTRIBUTE \"GranularityPeriod\" = " + granularityperiod);
echo(">>> START the StringMonitor");
stringMonitor.start();
// Check if notification was received
//
doWait();
if (messageReceived) {
echo("\tOK: StringMonitor got RUNTIME_ERROR notification!");
} else {
echo("\tKO: StringMonitor did not get " +
"RUNTIME_ERROR notification!");
return 1;
}
} finally {
messageReceived = false;
if (stringMonitor != null)
stringMonitor.stop();
}
return 0;
}