/**
* Validates the agent.
*
* @return The object name for SWT resource monitor MXBean
* @throws JvmCoreException
*/
private ObjectName validateAgent() throws JvmCoreException {
if (!jvm.isRemote() && !JvmModel.getInstance().getAgentLoadHandler().isAgentLoaded()) {
throw new JvmCoreException(IStatus.ERROR, Messages.agentNotLoadedMsg, new Exception());
}
return jvm.getMBeanServer().getObjectName(SWT_RESOURCE_MONITOR_MXBEAN_NAME);
}
/*
* @see ISWTResourceMonitor#setTracking(boolean)
*/
@Override
public void setTracking(boolean tracking) throws JvmCoreException {
ObjectName objectName = validateAgent();
if (objectName != null) {
jvm.getMBeanServer().setAttribute(objectName, new Attribute(TRACKING, tracking));
}
}
/*
* @see ISWTResourceMonitor#clear()
*/
@Override
public void clear() throws JvmCoreException {
ObjectName objectName = validateAgent();
if (objectName != null) {
jvm.getMBeanServer().invoke(objectName, CLEAR, new Object[0], new String[0]);
}
}
/*
* @see ISWTResourceMonitor#isTracking()
*/
@Override
public boolean isTracking() throws JvmCoreException {
ObjectName objectName = validateAgent();
if (objectName != null) {
Object attribute = jvm.getMBeanServer().getAttribute(objectName, TRACKING);
if (attribute instanceof Boolean) {
return ((Boolean) attribute).booleanValue();
}
}
return false;
}
/*
* @see ISWTResourceMonitor#refreshResourcesCache()
*/
@Override
public void refreshResourcesCache() throws JvmCoreException {
resources.clear();
ObjectName objectName = validateAgent();
if (objectName != null) {
Object attribute = jvm.getMBeanServer().getAttribute(objectName, RESOURCES);
if (attribute instanceof CompositeData[]) {
resources =
new ArrayList<ISWTResourceElement>(getSWTResourceElements((CompositeData[]) attribute));
}
}
}
/*
* @see ISWTResourceMonitor#isSupported()
*/
@Override
public boolean isSupported() {
try {
ObjectName objectName = validateAgent();
if (objectName == null) {
return false;
}
Object attribute = jvm.getMBeanServer().getAttribute(objectName, TRACKING);
return attribute != null;
} catch (JvmCoreException e) {
return false;
}
}
