Mercurial > hg > release > thermostat-0.5
view vm-memory/agent/src/main/java/com/redhat/thermostat/vm/memory/agent/internal/VmMemoryVmListener.java @ 925:259c60624174
Update all Backends to use new API for Vm start/stop
Reviewed-by: ebaron
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2013-January/005252.html
PR 1258
author | Omair Majid <omajid@redhat.com> |
---|---|
date | Mon, 21 Jan 2013 13:48:50 -0500 |
parents | 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.memory.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.VmMemoryStat; import com.redhat.thermostat.storage.model.VmMemoryStat.Generation; import com.redhat.thermostat.storage.model.VmMemoryStat.Space; import com.redhat.thermostat.vm.memory.common.VmMemoryStatDAO; public class VmMemoryVmListener implements VmListener { private static final Logger logger = LoggingUtils.getLogger(VmMemoryVmListener.class); private final int vmId; private final VmMemoryStatDAO memDAO; public VmMemoryVmListener(VmMemoryStatDAO vmMemoryStatDao, int vmId) { memDAO = vmMemoryStatDao; 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(); VmMemoryDataExtractor extractor = new VmMemoryDataExtractor(vm); recordMemoryStat(extractor); } void recordMemoryStat(VmMemoryDataExtractor extractor) { try { long timestamp = System.currentTimeMillis(); int maxGenerations = (int) extractor.getTotalGcGenerations(); Generation[] generations = new Generation[maxGenerations]; for (int generation = 0; generation < maxGenerations; generation++) { Generation g = new Generation(); g.setName(extractor.getGenerationName(generation)); g.setCapacity(extractor.getGenerationCapacity(generation)); g.setMaxCapacity(extractor.getGenerationMaxCapacity(generation)); g.setCollector(extractor.getGenerationCollector(generation)); generations[generation] = g; int maxSpaces = (int) extractor.getTotalSpaces(generation); Space[] spaces = new Space[maxSpaces]; for (int space = 0; space < maxSpaces; space++) { Space s = new Space(); s.setIndex((int) space); s.setName(extractor.getSpaceName(generation, space)); s.setCapacity(extractor.getSpaceCapacity(generation, space)); s.setMaxCapacity(extractor.getSpaceMaxCapacity(generation, space)); s.setUsed(extractor.getSpaceUsed(generation, space)); spaces[space] = s; } g.setSpaces(spaces); } VmMemoryStat stat = new VmMemoryStat(timestamp, vmId, generations); memDAO.putVmMemoryStat(stat); } catch (MonitorException e) { logger.log(Level.WARNING, "error gathering memory info for vm " + vmId, e); } } }