java类javax.management.DynamicMBean的实例源码

private NotificationListener getListenerWrapper(NotificationListener l,
                                                ObjectName name,
                                                DynamicMBean mbean,
                                                boolean create) {
    Object resource = getResource(mbean);
    ListenerWrapper wrapper = new ListenerWrapper(l, name, resource);
    synchronized (listenerWrappers) {
        WeakReference<ListenerWrapper> ref = listenerWrappers.get(wrapper);
        if (ref != null) {
            NotificationListener existing = ref.get();
            if (existing != null)
                return existing;
        }
        if (create) {
            ref = new WeakReference<ListenerWrapper>(wrapper);
            listenerWrappers.put(wrapper, ref);
            return wrapper;
        } else
            return null;
    }
}

/**
 * Create, register, and return an MBean for this
 * <code>MBeanFactory</code> object.
 *
 * @param factory The MBeanFactory to be managed
 *
 * @exception Exception if an MBean cannot be created or registered
 *
 * @deprecated Unused. Will be removed in Tomcat 8.0.x
 */
@Deprecated
static DynamicMBean createMBean(MBeanFactory factory)
    throws Exception {

    String mname = createManagedName(factory);
    ManagedBean managed = registry.findManagedBean(mname);
    if (managed == null) {
        Exception e = new Exception("ManagedBean is not found with "+mname);
        throw new MBeanException(e);
    }
    String domain = managed.getDomain();
    if (domain == null)
        domain = mserver.getDefaultDomain();
    DynamicMBean mbean = managed.createMBean(factory);
    ObjectName oname = createObjectName(domain, factory);
    if( mserver.isRegistered(oname )) {
        mserver.unregisterMBean(oname);
    }
    mserver.registerMBean(mbean, oname);
    return (mbean);

}

/**
 * Create, register, and return an MBean for this
 * <code>NamingResources</code> object.
 *
 * @param resource The NamingResources to be managed
 *
 * @exception Exception if an MBean cannot be created or registered
 *
 * @deprecated Unused. Will be removed in Tomcat 8.0.x
 */
@Deprecated
static DynamicMBean createMBean(NamingResources resource)
    throws Exception {

    String mname = createManagedName(resource);
    ManagedBean managed = registry.findManagedBean(mname);
    if (managed == null) {
        Exception e = new Exception("ManagedBean is not found with "+mname);
        throw new MBeanException(e);
    }
    String domain = managed.getDomain();
    if (domain == null)
        domain = mserver.getDefaultDomain();
    DynamicMBean mbean = managed.createMBean(resource);
    ObjectName oname = createObjectName(domain, resource);
    if( mserver.isRegistered( oname ))  {
        mserver.unregisterMBean(oname);
    }
    mserver.registerMBean(mbean, oname);
    return (mbean);

}

/**
 * Create, register, and return an MBean for this
 * <code>UserDatabase</code> object.
 *
 * @param userDatabase The UserDatabase to be managed
 *
 * @exception Exception if an MBean cannot be created or registered
 */
static DynamicMBean createMBean(UserDatabase userDatabase)
    throws Exception {

    String mname = createManagedName(userDatabase);
    ManagedBean managed = registry.findManagedBean(mname);
    if (managed == null) {
        Exception e = new Exception("ManagedBean is not found with "+mname);
        throw new MBeanException(e);
    }
    String domain = managed.getDomain();
    if (domain == null)
        domain = mserver.getDefaultDomain();
    DynamicMBean mbean = managed.createMBean(userDatabase);
    ObjectName oname = createObjectName(domain, userDatabase);
    if( mserver.isRegistered( oname ))  {
        mserver.unregisterMBean(oname);
    }
    mserver.registerMBean(mbean, oname);
    return (mbean);

}

private NotificationListener getListenerWrapper(NotificationListener l,
                                                ObjectName name,
                                                DynamicMBean mbean,
                                                boolean create) {
    Object resource = getResource(mbean);
    ListenerWrapper wrapper = new ListenerWrapper(l, name, resource);
    synchronized (listenerWrappers) {
        WeakReference<ListenerWrapper> ref = listenerWrappers.get(wrapper);
        if (ref != null) {
            NotificationListener existing = ref.get();
            if (existing != null)
                return existing;
        }
        if (create) {
            ref = new WeakReference<ListenerWrapper>(wrapper);
            listenerWrappers.put(wrapper, ref);
            return wrapper;
        } else
            return null;
    }
}

public Object invoke(ObjectName name, String operationName,
                     Object params[], String signature[])
        throws InstanceNotFoundException, MBeanException,
               ReflectionException {

    name = nonDefaultDomain(name);

    DynamicMBean instance = getMBean(name);
    checkMBeanPermission(instance, operationName, name, "invoke");
    try {
        return instance.invoke(operationName, params, signature);
    } catch (Throwable t) {
        rethrowMaybeMBeanException(t);
        throw new AssertionError();
    }
}

private static ObjectName preRegister(
        DynamicMBean mbean, MBeanServer mbs, ObjectName name)
        throws InstanceAlreadyExistsException, MBeanRegistrationException {

    ObjectName newName = null;

    try {
        if (mbean instanceof MBeanRegistration)
            newName = ((MBeanRegistration) mbean).preRegister(mbs, name);
    } catch (Throwable t) {
        throwMBeanRegistrationException(t, "in preRegister method");
    }

    if (newName != null) return newName;
    else return name;
}

private static void postRegister(
        ObjectName logicalName, DynamicMBean mbean,
        boolean registrationDone, boolean registerFailed) {

    if (registerFailed && mbean instanceof DynamicMBean2)
        ((DynamicMBean2) mbean).registerFailed();
    try {
        if (mbean instanceof MBeanRegistration)
            ((MBeanRegistration) mbean).postRegister(registrationDone);
    } catch (RuntimeException e) {
        MBEANSERVER_LOGGER.fine("While registering MBean ["+logicalName+
                "]: " + "Exception thrown by postRegister: " +
                "rethrowing <"+e+">, but keeping the MBean registered");
        throw new RuntimeMBeanException(e,
                  "RuntimeException thrown in postRegister method: "+
                  "rethrowing <"+e+">, but keeping the MBean registered");
    } catch (Error er) {
        MBEANSERVER_LOGGER.fine("While registering MBean ["+logicalName+
                "]: " + "Error thrown by postRegister: " +
                "rethrowing <"+er+">, but keeping the MBean registered");
        throw new RuntimeErrorException(er,
                  "Error thrown in postRegister method: "+
                  "rethrowing <"+er+">, but keeping the MBean registered");
    }
}

/**
 * Create, register, and return an MBean for this <code>Loader</code>
 * object.
 *
 * @param loader
 *            The Loader to be managed
 *
 * @exception Exception
 *                if an MBean cannot be created or registered
 *
 * @deprecated Unused. Will be removed in Tomcat 8.0.x
 */
@Deprecated
static DynamicMBean createMBean(Loader loader) throws Exception {

    String mname = createManagedName(loader);
    ManagedBean managed = registry.findManagedBean(mname);
    if (managed == null) {
        Exception e = new Exception("ManagedBean is not found with " + mname);
        throw new MBeanException(e);
    }
    String domain = managed.getDomain();
    if (domain == null)
        domain = mserver.getDefaultDomain();
    DynamicMBean mbean = managed.createMBean(loader);
    ObjectName oname = createObjectName(domain, loader);
    if (mserver.isRegistered(oname)) {
        // side effect: stop it
        mserver.unregisterMBean(oname);
    }
    mserver.registerMBean(mbean, oname);
    return (mbean);

}

private NotificationListener getListener(ObjectName listener)
    throws ListenerNotFoundException {
    // ----------------
    // Get listener object
    // ----------------
    DynamicMBean instance;
    try {
        instance = getMBean(listener);
    } catch (InstanceNotFoundException e) {
        throw EnvHelp.initCause(
                      new ListenerNotFoundException(e.getMessage()), e);
    }

    Object resource = getResource(instance);
    if (!(resource instanceof NotificationListener)) {
        final RuntimeException exc =
            new IllegalArgumentException(listener.getCanonicalName());
        final String msg =
            "MBean " + listener.getCanonicalName() + " does not " +
            "implement " + NotificationListener.class.getName();
        throw new RuntimeOperationsException(exc, msg);
    }
    return (NotificationListener) resource;
}