/** * Create MBean for Object. Attempts to create an MBean for the object by searching the package * and class name space. For example an object of the type * * <PRE> * class com.acme.MyClass extends com.acme.util.BaseClass * </PRE> * * Then this method would look for the following classes: * * <UL> * <LI>com.acme.MyClassMBean * <LI>com.acme.jmx.MyClassMBean * <LI>com.acme.util.BaseClassMBean * <LI>com.acme.util.jmx.BaseClassMBean * </UL> * * @param o The object * @return A new instance of an MBean for the object or null. */ public static ModelMBean mbeanFor(Object o) { try { Class oClass = o.getClass(); ClassLoader loader = oClass.getClassLoader(); ModelMBean mbean = null; boolean jmx = false; Class[] interfaces = null; int i = 0; while (mbean == null && oClass != null) { Class focus = interfaces == null ? oClass : interfaces[i]; String pName = focus.getPackage().getName(); String cName = focus.getName().substring(pName.length() + 1); String mName = pName + (jmx ? ".jmx." : ".") + cName + "MBean"; try { Class mClass = loader.loadClass(mName); if (log.isTraceEnabled()) log.trace("mbeanFor " + o + " mClass=" + mClass); mbean = (ModelMBean) mClass.newInstance(); mbean.setManagedResource(o, "objectReference"); if (log.isDebugEnabled()) log.debug("mbeanFor " + o + " is " + mbean); return mbean; } catch (ClassNotFoundException e) { if (e.toString().endsWith("MBean")) { if (log.isTraceEnabled()) log.trace(e.toString()); } else log.warn(LogSupport.EXCEPTION, e); } catch (Error e) { log.warn(LogSupport.EXCEPTION, e); mbean = null; } catch (Exception e) { log.warn(LogSupport.EXCEPTION, e); mbean = null; } if (jmx) { if (interfaces != null) { i++; if (i >= interfaces.length) { interfaces = null; oClass = oClass.getSuperclass(); } } else { interfaces = oClass.getInterfaces(); i = 0; if (interfaces == null || interfaces.length == 0) { interfaces = null; oClass = oClass.getSuperclass(); } } } jmx = !jmx; } } catch (Exception e) { LogSupport.ignore(log, e); } return null; }
static { // FIXME: RMIServerImpl_Stub is generated at build time // after jconsole is built. We need to investigate if // the Makefile can be fixed to build jconsole in the // right order. As a workaround for now, we dynamically // load RMIServerImpl_Stub class instead of statically // referencing it. Class<? extends Remote> serverStubClass = null; try { serverStubClass = Class.forName(rmiServerImplStubClassName).asSubclass(Remote.class); } catch (ClassNotFoundException e) { // should never reach here throw (InternalError) new InternalError(e.getMessage()).initCause(e); } rmiServerImplStubClass = serverStubClass; }