Mercurial > hg > release > thermostat-1.2
view vm-gc/common/src/main/java/com/redhat/thermostat/vm/gc/common/GcCommonNameMapper.java @ 1660:c6ae78b6f3ac
[Thermostat 1.2] Update copyright year to 2015
Reviewed-by: omajid
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2015-March/013127.html
PR2273
author | Severin Gehwolf <sgehwolf@redhat.com> |
---|---|
date | Wed, 11 Mar 2015 15:07:27 +0100 |
parents | d1b1dd94a100 |
children |
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/* * Copyright 2012-2015 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.common; import java.util.HashMap; import java.util.HashSet; import java.util.Map; import java.util.Set; public class GcCommonNameMapper { private static final Map<Set<String>, CollectorCommonName> commonNameMap; public enum CollectorCommonName { /** Serial Collector: {@code -XX:+UseSerialGC} */ SERIAL_COLLECTOR("Serial Collector"), /** G1 Collector: {@code -XX:+UseG1GC} */ G1("Garbage-First Collector (G1)"), /** Parallel Collector: {@code -XX:+UseParallelGC} */ PARALLEL_COLLECTOR("Parallel Collector"), /** Concurrent Mark and Sweep Collector: {@code +XX:+UseConcMarkSweepGC} */ CONCURRENT_COLLECTOR("Concurrent Collector (Concurrent Mark and Sweep)"), /** Mark Sweep Compact Collector: {@code -XX:+UseParNewGC} */ MARK_SWEEP_COMPACT("Mark Sweep Compact Collector"), UNKNOWN_COLLECTOR("Unknown Collector"); private String humanReadableName; private CollectorCommonName(String humanReadableName) { this.humanReadableName = humanReadableName; } public String getHumanReadableString() { return humanReadableName; } } static { commonNameMap = new HashMap<>(4); // Serial collector has two sub collectors, MSC and Copy Set<String> serialCollectorColls = new HashSet<>(2); serialCollectorColls.add("MSC"); serialCollectorColls.add("Copy"); commonNameMap.put(serialCollectorColls, CollectorCommonName.SERIAL_COLLECTOR); // Mark Sweep Compact GC has two sub collectors, MSC and PCopy Set<String> msCompactColls = new HashSet<>(2); msCompactColls.add("MSC"); msCompactColls.add("PCopy"); commonNameMap.put(msCompactColls, CollectorCommonName.MARK_SWEEP_COMPACT); // Garbage first collector (G1) has only one collector, namely // 'G1 incremental collections' Set<String> g1Colls = new HashSet<>(1); g1Colls.add("G1 incremental collections"); commonNameMap.put(g1Colls, CollectorCommonName.G1); // Current default, the Parallel Collector has two sub collectors: // PSParallelCompact and PSScavenge Set<String> parallelColls = new HashSet<>(2); parallelColls.add("PSParallelCompact"); parallelColls.add("PSScavenge"); commonNameMap.put(parallelColls, CollectorCommonName.PARALLEL_COLLECTOR); // Concurrent collector has two sub collectors: // CMS and PCopy Set<String> concurrentColls = new HashSet<>(2); concurrentColls.add("CMS"); concurrentColls.add("PCopy"); commonNameMap.put(concurrentColls, CollectorCommonName.CONCURRENT_COLLECTOR); } /** * * @param distinctCollectors * A set of distinct collector names for one JVM. * @return The common name of the collector for this set of distinct * collectors. */ public CollectorCommonName mapToCommonName(Set<String> distinctCollectors) { for (Set<String> subCollSet: commonNameMap.keySet()) { if (subCollSet.equals(distinctCollectors)) { return commonNameMap.get(subCollSet); } } // not found so far? return unknown. return CollectorCommonName.UNKNOWN_COLLECTOR; } }