Mercurial > hg > release > thermostat-1.6
view vm-numa/agent/src/main/java/com/redhat/thermostat/vm/numa/agent/internal/VmNumaBackend.java @ 2049:a92d602216ad
Update copyright license headers for 2017
PR3290
Reviewed-by: jerboaa
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2017-January/021974.html
author | Andrew Azores <aazores@redhat.com> |
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date | Tue, 17 Jan 2017 12:19:56 -0500 |
parents | aa8f08ccbd1e |
children |
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/* * Copyright 2012-2017 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.numa.agent.internal; import java.io.IOException; import java.text.ParseException; import java.util.HashMap; import java.util.Map; import java.util.concurrent.ScheduledExecutorService; import java.util.logging.Level; import java.util.logging.Logger; import com.redhat.thermostat.agent.VmStatusListenerRegistrar; import com.redhat.thermostat.backend.VmPollingAction; import com.redhat.thermostat.backend.VmPollingBackend; import com.redhat.thermostat.common.Version; import com.redhat.thermostat.common.utils.LoggingUtils; import com.redhat.thermostat.storage.core.WriterID; import com.redhat.thermostat.vm.numa.common.VmNumaDAO; import com.redhat.thermostat.vm.numa.common.VmNumaStat; public class VmNumaBackend extends VmPollingBackend { private final VmNumaBackendAction action; private static final Logger logger = LoggingUtils.getLogger(VmNumaBackend.class); public VmNumaBackend(ScheduledExecutorService executor, VmNumaDAO vmNumaDAO, Version version, VmStatusListenerRegistrar registrar, WriterID id) { super("VM NUMA Backend", "Gathers NUMA statistics about a vm", "Red Hat, Inc.", version, executor, registrar); this.action = new VmNumaBackendAction(id, vmNumaDAO); registerAction(action); } @Override public int getOrderValue() { return ORDER_MEMORY_GROUP; } private static class VmNumaBackendAction implements VmPollingAction { private VmNumaDAO dao; private WriterID writerID; private Map<Integer, VmNumaCollector> collectors; private VmNumaBackendAction(final WriterID writerID, VmNumaDAO dao) { this.writerID = writerID; this.dao = dao; this.collectors = new HashMap<>(); } @Override public void run(String vmId, int pid) { if (!collectors.containsKey(pid)) { collectors.put(pid, new VmNumaCollector(pid)); } try { VmNumaStat data = collectors.get(pid).collect(); data.setAgentId(writerID.getWriterID()); data.setVmId(vmId); dao.putVmNumaStat(data); } catch (ParseException e) { logger.log(Level.FINE, "Unable to read numa info for: " + pid); } } } /** * VmNumaBackend requires numastat process to function * @return true if numastat process exists, false otherwise */ public boolean canRegister() { try { Runtime.getRuntime().exec("numastat"); return true; } catch (IOException e) { //numastat does not exist, do nothing } return false; } // For testing purposes only void setVmNumaBackendCollector(int pid, VmNumaCollector collector) { action.collectors.put(pid, collector); } }