JmxClientAction.java

package org.springside.examples.showcase.jmx.client;

import java.util.HashMap;
import java.util.Map;

import org.apache.struts2.convention.annotation.Namespace;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springside.modules.utils.web.struts2.Struts2Utils;

import com.opensymphony.xwork2.ActionSupport;

/**
 * JMX客户端演示的Action.
 * 
 * @author ben
 * @author calvin
 */
@Namespace("/jmx")
public class JmxClientAction extends ActionSupport {

	private static final long serialVersionUID = -12923147736849709L;

	private static Logger logger = LoggerFactory.getLogger(JmxClientAction.class);

	@Autowired
	private JmxClientService jmxClientService;

	//-- 页面属性 --//
	private String nodeName;
	private boolean notificationMailEnabled;
	private boolean traceStarted;

	/**
	 * 默认函数,显示服务器配置及运行情况.
	 */
	@Override
	public String execute() {
		nodeName = jmxClientService.getNodeName();
		notificationMailEnabled = jmxClientService.isNotificationMailEnabled();
		traceStarted = jmxClientService.getTraceStatus();
		return SUCCESS;
	}

	//-- 系统配置 (基于MBean) --//
	/**
	 * 修改系统配置的Ajax请求.
	 */
	public String saveConfig() {
		try {
			jmxClientService.setNodeName(nodeName);
			jmxClientService.setNotificationMailEnabled(notificationMailEnabled);
			Struts2Utils.renderText("保存配置成功.");
		} catch (Exception e) {
			Struts2Utils.renderText("保存配置失败.");
			logger.error("保存配置失败.", e);
		}
		return null;
	}

	/**
	 * 获取最新系统配置, 返回JSON字符串.
	 */
	@SuppressWarnings("unchecked")
	public String refreshConfig() {
		Map map = new HashMap();
		try {
			nodeName = jmxClientService.getNodeName();
			notificationMailEnabled = jmxClientService.isNotificationMailEnabled();

			map.put("nodeName", nodeName);
			map.put("notificationMailEnabled", String.valueOf(notificationMailEnabled));
			map.put("message", "刷新配置成功.");
		} catch (Exception e) {
			map.put("message", "刷新配置失败.");
			logger.error(e.getMessage(), e);
		}

		Struts2Utils.renderJson(map);
		return null;
	}

	//-- Trace控制(直接读取属性/调用方法) --//
	/**
	 * 开始Trace.
	 */
	public void startTrace() {
		jmxClientService.startTrace();
	}

	/**
	 * 停止Trace.
	 */
	public void stopTrace() {
		jmxClientService.stopTrace();
	}

	//-- 页面属性访问函数 --//
	public String getNodeName() {
		return nodeName;
	}

	public void setNodeName(String nodeName) {
		this.nodeName = nodeName;
	}

	public boolean isNotificationMailEnabled() {
		return notificationMailEnabled;
	}

	public void setNotificationMailEnabled(boolean notificationMailEnabled) {
		this.notificationMailEnabled = notificationMailEnabled;
	}

	public boolean isTraceStarted() {
		return traceStarted;
	}
}