/**
* Returns a map of MBeans with ObjectName as the key and MBeanInfo value of a given domain. If
* domain is <tt>null</tt>, all MBeans are returned. If no MBean found, an empty map is returned.
*/
public Map<ObjectName, MBeanInfo> getMBeans(String domain) throws IOException {
ObjectName name = null;
if (domain != null) {
try {
name = new ObjectName(domain + ":*");
} catch (MalformedObjectNameException e) {
// should not reach here
assert (false);
}
}
Set<ObjectName> mbeans = server.queryNames(name, null);
Map<ObjectName, MBeanInfo> result = new HashMap<ObjectName, MBeanInfo>(mbeans.size());
Iterator<ObjectName> iterator = mbeans.iterator();
while (iterator.hasNext()) {
Object object = iterator.next();
if (object instanceof ObjectName) {
ObjectName o = (ObjectName) object;
try {
MBeanInfo info = server.getMBeanInfo(o);
result.put(o, info);
} catch (IntrospectionException e) {
// TODO: should log the error
} catch (InstanceNotFoundException e) {
// TODO: should log the error
} catch (ReflectionException e) {
// TODO: should log the error
}
}
}
return result;
}
public synchronized Collection<GarbageCollectorMXBean> getGarbageCollectorMXBeans()
throws IOException {
// TODO: How to deal with changes to the list??
if (garbageCollectorMBeans == null) {
ObjectName gcName = null;
try {
gcName = new ObjectName(GARBAGE_COLLECTOR_MXBEAN_DOMAIN_TYPE + ",*");
} catch (MalformedObjectNameException e) {
// should not reach here
assert (false);
}
Set<ObjectName> mbeans = server.queryNames(gcName, null);
if (mbeans != null) {
garbageCollectorMBeans = new ArrayList<GarbageCollectorMXBean>();
Iterator<ObjectName> iterator = mbeans.iterator();
while (iterator.hasNext()) {
ObjectName on = (ObjectName) iterator.next();
String name = GARBAGE_COLLECTOR_MXBEAN_DOMAIN_TYPE + ",name=" + on.getKeyProperty("name");
GarbageCollectorMXBean mBean =
newPlatformMXBeanProxy(server, name, GarbageCollectorMXBean.class);
garbageCollectorMBeans.add(mBean);
}
}
}
return garbageCollectorMBeans;
}
/**
* Invokes an operation of a named MBean.
*
* @throws MBeanException Wraps an exception thrown by the MBean's invoked method.
*/
public Object invoke(ObjectName name, String operationName, Object[] params, String[] signature)
throws IOException, MBeanException {
Object result = null;
try {
result = server.invoke(name, operationName, params, signature);
} catch (InstanceNotFoundException e) {
// TODO: A MBean may have been unregistered.
} catch (ReflectionException e) {
// TODO: should log the error
}
return result;
}
/** Set the value of a specific attribute of a named MBean. */
public void setAttribute(ObjectName name, Attribute attribute)
throws InvalidAttributeValueException, MBeanException, IOException {
try {
server.setAttribute(name, attribute);
} catch (InstanceNotFoundException e) {
// TODO: A MBean may have been unregistered.
} catch (AttributeNotFoundException e) {
assert (false);
} catch (ReflectionException e) {
// TODO: should log the error
}
}
/** Returns a list of attributes of a named MBean. */
public AttributeList getAttributes(ObjectName name, String[] attributes) throws IOException {
AttributeList list = null;
try {
list = server.getAttributes(name, attributes);
} catch (InstanceNotFoundException e) {
// TODO: A MBean may have been unregistered.
// need to set up listener to listen for MBeanServerNotification.
} catch (ReflectionException e) {
// TODO: should log the error
}
return list;
}
public synchronized com.sun.management.OperatingSystemMXBean getSunOperatingSystemMXBean()
throws IOException {
try {
ObjectName on = new ObjectName(OPERATING_SYSTEM_MXBEAN_NAME);
if (sunOperatingSystemMXBean == null) {
if (server.isInstanceOf(on, "com.sun.management.OperatingSystemMXBean")) {
sunOperatingSystemMXBean =
newPlatformMXBeanProxy(
server,
OPERATING_SYSTEM_MXBEAN_NAME,
com.sun.management.OperatingSystemMXBean.class);
}
}
} catch (InstanceNotFoundException e) {
return null;
} catch (MalformedObjectNameException e) {
return null; // should never reach here
}
return sunOperatingSystemMXBean;
}
public Collection<MemoryPoolProxy> getMemoryPoolProxies() throws IOException {
// TODO: How to deal with changes to the list??
if (memoryPoolProxies == null) {
ObjectName poolName = null;
try {
poolName = new ObjectName(MEMORY_POOL_MXBEAN_DOMAIN_TYPE + ",*");
} catch (MalformedObjectNameException e) {
// should not reach here
assert (false);
}
Set<ObjectName> mbeans = server.queryNames(poolName, null);
if (mbeans != null) {
memoryPoolProxies = new ArrayList<MemoryPoolProxy>();
Iterator<ObjectName> iterator = mbeans.iterator();
while (iterator.hasNext()) {
ObjectName objName = (ObjectName) iterator.next();
MemoryPoolProxy p = new MemoryPoolProxy(this, objName);
memoryPoolProxies.add(p);
}
}
}
return memoryPoolProxies;
}
public boolean isRegistered(ObjectName name) throws IOException {
return server.isRegistered(name);
}
/** Returns the list of domains in which any MBean is currently registered. */
public String[] getDomains() throws IOException {
return server.getDomains();
}
private void tryConnect(boolean requireRemoteSSL) throws IOException {
if (jmxUrl == null && "localhost".equals(hostName) && port == 0) {
// Monitor self
this.jmxc = null;
this.mbsc = ManagementFactory.getPlatformMBeanServer();
this.server = Snapshot.newSnapshot(mbsc);
} else {
// Monitor another process
if (lvm != null) {
if (!lvm.isManageable()) {
lvm.startManagementAgent();
if (!lvm.isManageable()) {
// FIXME: what to throw
throw new IOException(lvm + "not manageable");
}
}
if (this.jmxUrl == null) {
this.jmxUrl = new JMXServiceURL(lvm.connectorAddress());
}
}
Map<String, Object> env = new HashMap<String, Object>();
if (requireRemoteSSL) {
env.put("jmx.remote.x.check.stub", "true");
}
// Need to pass in credentials ?
if (userName == null && password == null) {
if (isVmConnector()) {
// Check for SSL config on reconnection only
if (stub == null) {
checkSslConfig();
}
this.jmxc = new RMIConnector(stub, null);
jmxc.connect(env);
} else {
this.jmxc = JMXConnectorFactory.connect(jmxUrl, env);
}
} else {
env.put(JMXConnector.CREDENTIALS, new String[] {userName, password});
if (isVmConnector()) {
// Check for SSL config on reconnection only
if (stub == null) {
checkSslConfig();
}
this.jmxc = new RMIConnector(stub, null);
jmxc.connect(env);
} else {
this.jmxc = JMXConnectorFactory.connect(jmxUrl, env);
}
}
this.mbsc = jmxc.getMBeanServerConnection();
this.server = Snapshot.newSnapshot(mbsc);
}
this.isDead = false;
try {
ObjectName on = new ObjectName(THREAD_MXBEAN_NAME);
this.hasPlatformMXBeans = server.isRegistered(on);
this.hasHotSpotDiagnosticMXBean =
server.isRegistered(new ObjectName(HOTSPOT_DIAGNOSTIC_MXBEAN_NAME));
// check if it has 6.0 new APIs
if (this.hasPlatformMXBeans) {
MBeanOperationInfo[] mopis = server.getMBeanInfo(on).getOperations();
// look for findDeadlockedThreads operations;
for (MBeanOperationInfo op : mopis) {
if (op.getName().equals("findDeadlockedThreads")) {
this.supportsLockUsage = true;
break;
}
}
on = new ObjectName(COMPILATION_MXBEAN_NAME);
this.hasCompilationMXBean = server.isRegistered(on);
}
} catch (MalformedObjectNameException e) {
// should not reach here
throw new InternalError(e.getMessage());
} catch (IntrospectionException e) {
InternalError ie = new InternalError(e.getMessage());
ie.initCause(e);
throw ie;
} catch (InstanceNotFoundException e) {
InternalError ie = new InternalError(e.getMessage());
ie.initCause(e);
throw ie;
} catch (ReflectionException e) {
InternalError ie = new InternalError(e.getMessage());
ie.initCause(e);
throw ie;
}
if (hasPlatformMXBeans) {
// WORKAROUND for bug 5056632
// Check if the access role is correct by getting a RuntimeMXBean
getRuntimeMXBean();
}
}
void flush() {
if (server != null) {
server.flush();
}
}
