/*
* JBoss, the OpenSource J2EE webOS
*
* Distributable under LGPL license.
* See terms of license at gnu.org.
*/
package org.jboss.console.plugins.monitor;

import org.jboss.monitor.ThresholdMonitor;
import org.jboss.mx.util.MBeanServerLocator;
import org.jboss.mx.util.InstanceOfQueryExp;

import javax.management.MBeanServer;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Set;
import java.util.Iterator;

/**
 * Created by IntelliJ IDEA.
 * User: wburke
 * Date: Nov 25, 2003
 * Time: 5:53:01 PM
 * To change this template use Options | File Templates.
 */
public class ClearMonitorAlertsServlet extends javax.servlet.http.HttpServlet
{
   protected void doGet(HttpServletRequest req, HttpServletResponse resp)
           throws ServletException, IOException
   {
      doit(req, resp);
   }

   protected void doPost(HttpServletRequest req, HttpServletResponse resp)
           throws ServletException, IOException
   {
      doit(req, resp);
   }

   protected void doit(HttpServletRequest req, HttpServletResponse resp)
           throws ServletException, IOException
   {
      try
      {
         MBeanServer mbeanServer = MBeanServerLocator.locateJBoss();
         InstanceOfQueryExp queryExp = null;
         queryExp = new InstanceOfQueryExp("org.jboss.monitor.JBossMonitorMBean");
         Set monitors = mbeanServer.queryNames(null, queryExp);
         Iterator mbeans = monitors.iterator();
         while (mbeans.hasNext())
         {
            ObjectName moname = (ObjectName) mbeans.next();
            Object[] nullArgs = {};
            String[] nullSig = {};
            boolean alerted = ((Boolean) mbeanServer.invoke(moname, "alerted", nullArgs, nullSig)).booleanValue();
            if (alerted)
            {
               mbeanServer.invoke(moname, "clearAlert", nullArgs, nullSig);
            }
         }
      }
      catch (Exception ex)
      {
         req.setAttribute("error", "Error clearing alerts: " + ex.toString());
      }
      req.getRequestDispatcher("/listMonitors.jsp").forward(req, resp);
   }

}