Mercurial > hg > release > thermostat-0.5
view vm-gc/agent/src/main/java/com/redhat/thermostat/vm/gc/agent/internal/VmGcVmListener.java @ 895:ceb28ef8f9e8
Create VM GC agent and common bundles
This commit extracts VM GC data collection from SystemBackend and related
classes to a vm-gc-agent bundle. It also moves the VmGcStatDAO from
common-core to a vm-gc-common bundle that registers the DAO once Storage
is available. This also removes the DAO from DAOFactory.
Reviewed-by: omajid
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2013-January/004997.html
author | Elliott Baron <ebaron@redhat.com> |
---|---|
date | Mon, 07 Jan 2013 15:50:59 -0500 |
parents | system-backend/src/main/java/com/redhat/thermostat/backend/system/JvmStatVmListener.java@0ba74f790a8a |
children | ccac9bcabaa0 |
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/* * Copyright 2013 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.vm.gc.agent.internal; 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.utils.LoggingUtils; import com.redhat.thermostat.storage.model.VmGcStat; import com.redhat.thermostat.vm.gc.common.VmGcStatDAO; public class VmGcVmListener implements VmListener { private static final Logger logger = LoggingUtils.getLogger(VmGcVmListener.class); private final int vmId; private final VmGcStatDAO gcDAO; public VmGcVmListener(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(); } VmGcDataExtractor extractor = new VmGcDataExtractor(vm); recordGcStat(vm, extractor); } void recordGcStat(MonitoredVm vm, VmGcDataExtractor extractor) { try { 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); } } }