SpringManagementMBeanAssembler.java 文件源码

public ModelMBean assemble(MBeanServer mBeanServer, Object obj, ObjectName name) throws JMException {
    ModelMBeanInfo mbi = null;

    // prefer to use the managed instance if it has been annotated with Spring JMX annotations
    if (obj instanceof ManagedInstance) {
        Object custom = ((ManagedInstance) obj).getInstance();
        if (custom != null && ObjectHelper.hasAnnotation(custom.getClass().getAnnotations(), ManagedResource.class)) {
            LOG.trace("Assembling MBeanInfo for: {} from custom @ManagedResource object: {}", name, custom);
            // get the mbean info from the custom managed object
            mbi = springAssembler.getMBeanInfo(custom, name.toString());
            // and let the custom object be registered in JMX
            obj = custom;
        }
    }

    if (mbi == null) {
        if (ObjectHelper.hasAnnotation(obj.getClass().getAnnotations(), ManagedResource.class)) {
            // the object has a Spring ManagedResource annotations so assemble the MBeanInfo
            LOG.trace("Assembling MBeanInfo for: {} from @ManagedResource object: {}", name, obj);
            mbi = springAssembler.getMBeanInfo(obj, name.toString());
        } else {
            // fallback and let the default mbean assembler handle this instead
            return super.assemble(mBeanServer, obj, name);
        }
    }

    LOG.trace("Assembled MBeanInfo {}", mbi);

    RequiredModelMBean mbean = (RequiredModelMBean) mBeanServer.instantiate(RequiredModelMBean.class.getName());
    mbean.setModelMBeanInfo(mbi);

    try {
        mbean.setManagedResource(obj, "ObjectReference");
    } catch (InvalidTargetObjectTypeException e) {
        throw new JMException(e.getMessage());
    }

    // Allows the managed object to send notifications
    if (obj instanceof NotificationSenderAware) {
        ((NotificationSenderAware)obj).setNotificationSender(new NotificationSenderAdapter(mbean));
    }

    return mbean;
}