Java ManagedResource類代碼示例

import org.springframework.jmx.export.annotation.ManagedResource; //導入依賴的package包/類
protected void registerEndpoint(String beanName, Endpoint<?> endpoint) {
	@SuppressWarnings("rawtypes")
	Class<? extends Endpoint> type = endpoint.getClass();
	if (AnnotationUtils.findAnnotation(type, ManagedResource.class) != null) {
		// Already managed
		return;
	}
	if (type.isMemberClass()
			&& AnnotationUtils.findAnnotation(type.getEnclosingClass(),
					ManagedResource.class) != null) {
		// Nested class with @ManagedResource in parent
		return;
	}
	try {
		registerBeanNameOrInstance(getEndpointMBean(beanName, endpoint), beanName);
	}
	catch (MBeanExportException ex) {
		logger.error("Could not register MBean for endpoint [" + beanName + "]", ex);
	}
}
 

import org.springframework.jmx.export.annotation.ManagedResource; //導入依賴的package包/類
@Override
protected void formatBean(Object objBean) throws Exception {
    IdentityHashMap identityHashMap = new IdentityHashMap();
	// root object
    Map<String, Object> json = new HashMap<String, Object>();

	// set desc and type on root
	Class<?> clazz = objBean.getClass();
	ManagedResource mr = clazz.getAnnotation(ManagedResource.class);
	String strHelp = mr == null ? null : mr.description();
	if (strHelp != null)
		json.put("description", strHelp);
	json.put("bean", clazz.getName());

	identityHashMap.put(objBean, Boolean.TRUE);
	
	// add properties and operations, recursively as needed
	format(objBean, json, identityHashMap);

	ObjectMapper mapper = new ObjectMapper();
	mapper.configure(Feature.FAIL_ON_EMPTY_BEANS, false);
	// Output
	getWriter().print(mapper.writeValueAsString(json));
}
 

import org.springframework.jmx.export.annotation.ManagedResource; //導入依賴的package包/類
@Override
protected final void formatBean(Object bean) throws Exception {
	Class<?> bclass = bean.getClass();
	ManagedResource mr = bclass.getAnnotation(ManagedResource.class);
	String help = mr == null ? null : mr.description();
	formatBean(false, bclass, help);
	boolean section = false;
	for (PropertyDescriptor pd : Introspector.getBeanInfo(bclass)
			.getPropertyDescriptors()) {
		Method getter = pd.getReadMethod();
		if (!XMLSerializationManager.isHidden(getter)) {
			if (!section) {
				section = true;
				formatSection(false, "Properties");
			}
			formatProperty(bean, pd);
		}
	}
	if (section) {
		formatSection(true, "Properties");
	}
	section = false;
	for (Method method : bean.getClass().getMethods()) {
		ManagedOperation mo = method.getAnnotation(ManagedOperation.class);
		if (mo != null && method.getParameterTypes().length == 0) {
			help = mo.description();
			if (!section) {
				section = true;
				formatSection(false, "Operations");
			}
			formatOperation(method);
		}
		if (section) {
			formatSection(true, "Operations");
		}
	}
}
 

import org.springframework.jmx.export.annotation.ManagedResource; //導入依賴的package包/類
private static String getResourcePath(String path, Object bean) {
  String rpath = path;
  ManagedResource mr = bean.getClass().getAnnotation(ManagedResource.class);
  if (mr != null) {
    String xpath = mr.objectName();
    if (xpath == null || xpath.length() == 0)
      xpath = mr.value();
    if (xpath != null && xpath.length() > 0) {
      rpath = path == null ? "" : xpath.startsWith(PATH_RELATIVE) ? path + PATH_SEPARATOR : PATH_SEPARATOR + path;
      rpath = xpath.startsWith(PATH_RELATIVE) ? rpath + xpath.substring(PATH_RELATIVE.length()) : xpath + rpath;
    }
  }
  return rpath;
}
 

import org.springframework.jmx.export.annotation.ManagedResource; //導入依賴的package包/類
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;
}