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;
}
/**
* 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;
}
/**
* Get Component MBeans. Creates, registers and deregisters MBeans for an array of components. On
* each call the passed map is used to determine components that have already been registers and
* those that need to be deregistered.
*
* @param components the components.
* @param map A map of previously registered components to object name. If null is passed, a
* default map for the mbean is used.
* @return An array of ObjectNames for each component.
*/
protected ObjectName[] getComponentMBeans(Object[] components, Map map) {
if (map == null) map = _components;
ObjectName[] beans = null;
if (components == null) beans = new ObjectName[0];
else {
beans = new ObjectName[components == null ? 0 : components.length];
// Add new beans
for (int i = 0; i < components.length; i++) {
ObjectName on = (ObjectName) map.get(components[i]);
if (on == null) {
ModelMBean mbean = mbeanFor(components[i]);
if (mbean == null) log.warn("No mbean for " + components[i]);
else {
try {
if (mbean instanceof ModelMBeanImpl) {
((ModelMBeanImpl) mbean).setBaseObjectName(getObjectName().toString());
on = getMBeanServer().registerMBean(mbean, null).getObjectName();
} else {
on = uniqueObjectName(getMBeanServer(), components[i], getObjectName().toString());
on = getMBeanServer().registerMBean(mbean, on).getObjectName();
}
map.put(components[i], on);
} catch (Exception e) {
log.warn(LogSupport.EXCEPTION, e);
}
}
}
beans[i] = on;
}
}
// Delete old beans
if (components == null || map.size() > components.length) {
Object[] to_delete = new Object[map.size() - beans.length];
int d = 0;
Iterator iter = map.keySet().iterator();
keys:
while (iter.hasNext()) {
Object bean = iter.next();
if (components != null) {
for (int i = 0; i < components.length; i++) if (components[i] == bean) continue keys;
}
to_delete[d++] = bean;
}
for (; d-- > 0; ) {
try {
getMBeanServer().unregisterMBean((ObjectName) map.remove(to_delete[d]));
} catch (Exception e) {
log.warn(LogSupport.EXCEPTION, e);
}
}
}
return beans;
}
private void deployBundle(File bundle, boolean encrypt)
throws JDOMException, IOException, ISOException, GeneralSecurityException {
SAXBuilder builder = createSAXBuilder();
Document doc = builder.build(bundle);
Iterator iter = doc.getRootElement().getChildren().iterator();
for (int i = 1; iter.hasNext(); i++) {
Element e = (Element) iter.next();
deployElement(e, String.format("%02d_%s.xml", i, e.getName()), encrypt, !encrypt);
// the !encrypt above is tricky and deserves an explanation
// if we are encrypting a QBean, we want it to stay in the deploy
// directory for future runs. If on the other hand we are deploying
// a bundle, we want it to be transient.
}
}
private void checkModified() {
Iterator iter = dirMap.entrySet().iterator();
while (iter.hasNext()) {
Map.Entry entry = (Map.Entry) iter.next();
File f = (File) entry.getKey();
QEntry qentry = (QEntry) entry.getValue();
if (qentry.isQBean() && qentry.isQPersist()) {
ObjectName name = qentry.getObjectName();
if (getState(name) == QBean.STARTED && isModified(name)) {
qentry.setDeployed(persist(f, name));
}
}
}
}
/* ------------------------------------------------------------ */
public AttributeList setAttributes(AttributeList attrs) {
log.debug("setAttributes");
AttributeList results = new AttributeList(attrs.size());
Iterator iter = attrs.iterator();
while (iter.hasNext()) {
try {
Attribute attr = (Attribute) iter.next();
setAttribute(attr);
results.add(new Attribute(attr.getName(), getAttribute(attr.getName())));
} catch (Exception e) {
log.warn(LogSupport.EXCEPTION, e);
}
}
return results;
}
private void deploy() {
List startList = new ArrayList();
Iterator iter = dirMap.entrySet().iterator();
try {
while (iter.hasNext() && !shutdown) {
Map.Entry entry = (Map.Entry) iter.next();
File f = (File) entry.getKey();
QEntry qentry = (QEntry) entry.getValue();
long deployed = qentry.getDeployed();
if (deployed == 0) {
if (deploy(f)) {
if (qentry.isQBean()) startList.add(qentry.getInstance());
qentry.setDeployed(f.lastModified());
} else {
// deploy failed, clean up.
iter.remove();
}
} else if (deployed != f.lastModified()) {
undeploy(f);
iter.remove();
loader.forceNewClassLoaderOnNextScan();
}
}
iter = startList.iterator();
while (iter.hasNext()) {
start((ObjectInstance) iter.next());
}
} catch (Exception e) {
log.error("deploy", e);
}
}
/**
* Unregister mbeans for already registered components
*
* @param map
*/
protected void destroyComponentMBeans(Map map) {
// if no map of registered mbean names is passed,
// use the default map
if (null == map) map = _components;
if (map == null) return;
Iterator itor = map.values().iterator();
while (itor.hasNext()) {
try {
ObjectName o = (ObjectName) itor.next();
getMBeanServer().unregisterMBean(o);
itor.remove();
} catch (Exception e) {
log.warn(LogSupport.EXCEPTION, e);
}
}
}
public String[] getjavaVMs() {
// get the internal VM name
// App Clients never run on the internal VM
Set res = new HashSet();
if (!(this instanceof AppClientModuleMdl)) {
// res.addAll(findNames("j2eeType=JVM,name=" + MOAgentFactory.getAgent().getJVMId()));
}
// get the external VM names
Iterator vmNames = externalVMs.iterator();
while (vmNames.hasNext()) {
String vmName = (String) vmNames.next();
Set x = findNames("j2eeType=JVM,name=" + vmName);
if (x.size() > 0) {
res.addAll(x);
} else {
// no longer an active VM
externalVMs.remove(vmName);
vmNames = externalVMs.iterator();
}
}
Iterator it = res.iterator();
String[] vms = new String[res.size()];
int i = 0;
while (it.hasNext()) {
vms[i++] = ((ObjectName) it.next()).toString();
}
return vms;
}
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;
}