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; }
private synchronized NameValueMap getCachedAttributes(ObjectName objName, Set<String> attrNames) throws InstanceNotFoundException, ReflectionException, IOException { NameValueMap values = cachedValues.get(objName); if (values != null && values.keySet().containsAll(attrNames)) { return values; } attrNames = new TreeSet<String>(attrNames); Set<String> oldNames = cachedNames.get(objName); if (oldNames != null) { attrNames.addAll(oldNames); } values = new NameValueMap(); final AttributeList attrs = conn.getAttributes(objName, attrNames.toArray(new String[attrNames.size()])); for (Attribute attr : attrs.asList()) { values.put(attr.getName(), attr.getValue()); } cachedValues.put(objName, values); cachedNames.put(objName, attrNames); return values; }
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; }