Mercurial > hg > release > thermostat-0.5
view system-backend/src/main/java/com/redhat/thermostat/backend/system/JvmStatVmListener.java @ 894:0ba74f790a8a
Create VM Memory agent and common bundles
This commit extracts VM Memory data collection from SystemBackend and
related classes into a vm-memory-agent bundle. It also moves the
VmMemoryStatDAO from common-core into a vm-memory-common bundle that
registers the DAO once Storage is available. This also removes the DAO
from DAOFactory.
This also temporarily adds the vm-memory-common bundle as a dependency
to client-cli until my later dynamic vm-stat patch.
Reviewed-by: omajid
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2013-January/004995.html
author | Elliott Baron <ebaron@redhat.com> |
---|---|
date | Mon, 07 Jan 2013 15:50:03 -0500 |
parents | 9e6bcfc40ea1 |
children |
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/* * Copyright 2012 Red Hat, Inc. * * This file is part of Thermostat. * * Thermostat is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published * by the Free Software Foundation; either version 2, or (at your * option) any later version. * * Thermostat 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 * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Thermostat; see the file COPYING. If not see * <http://www.gnu.org/licenses/>. * * Linking this code with other modules is making a combined work * based on this code. Thus, the terms and conditions of the GNU * General Public License cover the whole combination. * * As a special exception, the copyright holders of this code give * you permission to link this code with independent modules to * produce an executable, regardless of the license terms of these * independent modules, and to copy and distribute the resulting * executable under terms of your choice, provided that you also * meet, for each linked independent module, the terms and conditions * of the license of that module. An independent module is a module * which is not derived from or based on this code. If you modify * this code, you may extend this exception to your version of the * library, but you are not obligated to do so. If you do not wish * to do so, delete this exception statement from your version. */ package com.redhat.thermostat.backend.system; import java.util.logging.Level; import java.util.logging.Logger; import sun.jvmstat.monitor.MonitorException; import sun.jvmstat.monitor.MonitoredVm; import sun.jvmstat.monitor.event.MonitorStatusChangeEvent; import sun.jvmstat.monitor.event.VmEvent; import sun.jvmstat.monitor.event.VmListener; import com.redhat.thermostat.common.dao.VmGcStatDAO; import com.redhat.thermostat.common.utils.LoggingUtils; import com.redhat.thermostat.storage.model.VmGcStat; public class JvmStatVmListener implements VmListener { private static final Logger logger = LoggingUtils.getLogger(JvmStatVmListener.class); private final int vmId; private final VmGcStatDAO gcDAO; public JvmStatVmListener(VmGcStatDAO vmGcStatDao, int vmId) { gcDAO = vmGcStatDao; this.vmId = vmId; } @Override public void disconnected(VmEvent event) { /* nothing to do here */ } @Override public void monitorStatusChanged(MonitorStatusChangeEvent event) { /* nothing to do here */ } @Override public void monitorsUpdated(VmEvent event) { MonitoredVm vm = event.getMonitoredVm(); if (vm == null) { throw new NullPointerException(); } recordGcStat(vm); } private void recordGcStat(MonitoredVm vm) { try { JvmStatDataExtractor extractor = new JvmStatDataExtractor(vm); long collectors = extractor.getTotalCollectors(); for (int i = 0; i < collectors; i++) { long timestamp = System.currentTimeMillis(); VmGcStat stat = new VmGcStat(vmId, timestamp, extractor.getCollectorName(i), extractor.getCollectorInvocations(i), extractor.getCollectorTime(i)); gcDAO.putVmGcStat(stat); } } catch (MonitorException e) { logger.log(Level.WARNING, "error gathering gc info for vm " + vmId, e); } } }