/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.console.plugins.monitor;
import java.io.IOException;
import java.util.ArrayList;
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 org.jboss.logging.Logger;
import org.jboss.monitor.ThresholdMonitor;
import org.jboss.mx.util.MBeanServerLocator;
/**
* 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 CreateThresholdMonitorServlet extends javax.servlet.http.HttpServlet
{
private static final Logger log = Logger.getLogger(CreateThresholdMonitorServlet.class);
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 error(String msg, HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException
{
req.setAttribute("error", "Error: " + msg);
//this.getServletContext().getRequestDispatcher("/createThresholdMonitor.jsp").forward(req, resp);
req.getRequestDispatcher("/createThresholdMonitor.jsp").forward(req, resp);
return;
}
protected void doit(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException
{
String monitorName = req.getParameter("monitorName").trim();
log.debug(monitorName);
String objectName = req.getParameter("objectName").trim();
log.debug(objectName);
MBeanServer mbeanServer = MBeanServerLocator.locateJBoss();
ObjectName oname = null;
try
{
oname = new ObjectName(objectName);
}
catch (MalformedObjectNameException e)
{
error("Malformed ObjectName ", req, resp);
return;
}
String attribute = req.getParameter("attribute").trim();
log.debug(attribute);
Object val = null;
try
{
val = mbeanServer.getAttribute(oname, attribute);
}
catch (Exception e)
{
error("Unable to pull attribute value from MBean, does the attribute exist? ", req, resp);
return;
}
String threshold = req.getParameter("threshold").trim();
log.debug(threshold);
boolean enabled = req.getParameter("enabled") != null;
log.debug("Enabled: " + enabled);
boolean persisted = req.getParameter("persisted") != null;
log.debug("Persisted: " + persisted);
String period = req.getParameter("period").trim();
log.debug(period);
long timePeriod = 0;
try
{
timePeriod = Long.parseLong(period);
}
catch (NumberFormatException e)
{
error("Illegal format for watch period.", req, resp);
return;
}
String compare = req.getParameter("compare").trim();
log.debug(compare);
String[] alerts = req.getParameterValues("alerts");
if (alerts == null)
{
error("you must select at least one alert listener", req, resp);
return;
}
int compareTo = 0;
if ("gt".equals(compare))
compareTo = -1;
else if ("lt".equals(compare))
compareTo = 1;
else if ("eq".equals(compare)) compareTo = 0;
if (persisted)
{
try
{
Object[] args = {"monitors", monitorName, "-service.xml"};
String[] signature = {"java.lang.String", "java.lang.String", "java.lang.String"};
Object rtn = mbeanServer.invoke(new ObjectName("jboss.admin:service=DeploymentFileRepository"), "isStored", args, signature);
if (((Boolean)rtn).booleanValue())
{
error("Monitor with this name already exists", req, resp);
return;
}
}
catch (Exception ex)
{
error("Failed to determine if monitor with that name already exists: " + ex.toString(), req, resp);
return;
}
StringBuffer xml = new StringBuffer("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
xml.append("<server>\n");
xml.append("<mbean code=\"org.jboss.monitor.ThresholdMonitor\"\n");
xml.append(" name=\"jboss.monitor:service=" + monitorName.replace(' ', '_') + "\">\n");
xml.append(" <attribute name=\"MonitorName\">" + monitorName + "</attribute>\n");
try
{
if (mbeanServer.isInstanceOf(oname, "org.jboss.system.ServiceMBean"))
{
xml.append(" <depends optional-attribute-name=\"ObservedObject\">" + objectName + "</depends>\n");
}
else
{
xml.append(" <attribute name=\"ObservedObject\">" + objectName + "</attribute>\n");
}
}
catch (Exception ex)
{
error("failed creating service: " + ex.toString(), req, resp);
return;
}
xml.append(" <attribute name=\"ObservedAttribute\">" + attribute + "</attribute>\n");
xml.append(" <depends-list optional-attribute-name=\"AlertListeners\">\n");
for (int i = 0; i < alerts.length; i++)
{
xml.append(" <depends-list-element>");
xml.append(alerts[i].trim());
xml.append(" </depends-list-element>\n");
}
xml.append(" </depends-list>\n");
xml.append(" <attribute name=\"Threshold\">" + threshold + "</attribute>\n");
xml.append(" <attribute name=\"Period\">" + timePeriod + "</attribute>\n");
xml.append(" <attribute name=\"CompareTo\">" + compareTo + "</attribute>\n");
xml.append(" <attribute name=\"Enabled\">" + enabled + "</attribute>\n");
xml.append("</mbean>\n</server>");
try
{
Object[] args = {"monitors", monitorName, "-service.xml", xml.toString(), Boolean.TRUE};
String[] signature = {"java.lang.String", "java.lang.String", "java.lang.String", "java.lang.String", "boolean"};
mbeanServer.invoke(new ObjectName("jboss.admin:service=DeploymentFileRepository"), "store", args, signature);
}
catch (Exception ex)
{
error("Failed to create persisted file: " + ex.toString(), req, resp);
return;
}
}
else
{
try
{
ThresholdMonitor monitor = new ThresholdMonitor();
monitor.setMonitorName(monitorName);
monitor.setObservedObject(oname);
monitor.setObservedAttribute(attribute);
monitor.setThreshold(threshold);
monitor.setEnabled(new Boolean(enabled).booleanValue());
monitor.setPeriod(timePeriod);
monitor.setCompareTo(compareTo);
ArrayList list = new ArrayList();
for (int i = 0; i < alerts.length; i++)
{
list.add(new ObjectName(alerts[i]));
}
monitor.setAlertListeners(list);
mbeanServer.registerMBean(monitor, new ObjectName("jboss.monitor:name=" + monitorName));
monitor.create();
monitor.start();
}
catch (Exception ex)
{
error("Failed to create non-persisted monitor: " + ex.toString(), req, resp);
}
}
req.getRequestDispatcher("/createThresholdMonitorSummary.jsp").forward(req, resp);
}
}