userqueries.java

精通Jboss——Ejb和Web Services开发精解的随书源代码

package com.liuyang.jmx.mbeans.user;

import java.util.Iterator;
import java.util.Set;

import javax.management.Attribute;
import javax.management.MBeanServer;
import javax.management.MBeanServerFactory;
import javax.management.ObjectName;
import javax.management.Query;
import javax.management.QueryExp;

public class UserQueries {

  public static void main(String[] args) throws Exception {

    MBeanServer server = MBeanServerFactory.createMBeanServer();
    ObjectName user1 = new ObjectName("book.liuyang:Name=user1");
    ObjectName user2 = new ObjectName("book.liuyang:Name=user2");
    server.createMBean("com.liuyang.jmx.mbeans.user.User", user1);
    server.createMBean("com.liuyang.jmx.mbeans.user.User", user2);
	server.setAttribute(user1, new Attribute("Name", "user1"));
	server.setAttribute(user2, new Attribute("Name", "user2"));
    server.setAttribute(user1, new Attribute("Role", "code"));
    server.setAttribute(user2, new Attribute("Role", "test"));
	QueryExp exp = Query.match(Query.attr("Name"), Query.value("user1"));
	ObjectName scope = new ObjectName("book.liuyang:*");    
	Set set      = server.queryNames(scope, exp);    
	Iterator it  = set.iterator();
	System.out.println("下列MBean的名字是：user1");
	while (it.hasNext()) {
	  System.out.println(it.next());    
	}
	scope = new ObjectName("book.liuyang:*");    
	exp   = Query.initialSubString(Query.attr("Role"),Query.value("t"));
	set   = server.queryNames(scope, exp);    
	it    = set.iterator();
	System.out.println("下列MBean的角色是：test");
	while (it.hasNext()) {
	  System.out.println(it.next());
	}
  }
}