Mercurial > hg > graal-compiler
view graal/com.oracle.max.base/src/com/sun/max/profile/GlobalMetrics.java @ 3733:e233f5660da4
Added Java files from Maxine project.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sat, 17 Dec 2011 19:59:18 +0100 |
parents | |
children | bc8527f3071c |
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/* * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.sun.max.profile; import java.io.*; import java.util.*; import java.util.Arrays; import com.sun.max.*; import com.sun.max.profile.Metrics.*; import com.sun.max.util.timer.*; public class GlobalMetrics { static class EntryComparator implements Comparator<Map.Entry<String, Metric>> { public int compare(Map.Entry<String, Metric> a, Map.Entry<String, Metric> b) { return String.CASE_INSENSITIVE_ORDER.compare(a.getKey(), b.getKey()); } } static class MetricSet<T extends Metric> { private final Class<T> clazz; private final Map<String, T> metrics = new HashMap<String, T>(); MetricSet(Class<T> mClass) { clazz = mClass; } } protected static final Map<Class<? extends Metric>, MetricSet> metricSets = new HashMap<Class<? extends Metric>, MetricSet>(); /** * This method allocates a new counter with the specified name and adds it to the global * metric list. If a previous metric with the same name exists, it will return a reference * to the first one created. * @param name the name of the metric for which to create a counter * @return a reference to a code {@code Counter} object which can be incremented and accumulated */ public static Metrics.Counter newCounter(String name) { if (name == null) { return new Metrics.Counter(); } return getCounter(name); } public static TimerMetric newTimer(String name, Clock clock) { if (name == null) { return new TimerMetric(new MultiThreadTimer(clock)); } return getTimer(name, clock); } public static Metrics.Rate newRate(String name, Metrics.Counter count, Clock clock) { if (name == null) { return new Rate(count, clock); } return getRate(name, count, clock); } static synchronized Metrics.Counter getCounter(String name) { Metrics.Counter counter = getMetric(name, Metrics.Counter.class); if (counter == null) { counter = setMetric(name, Metrics.Counter.class, new Metrics.Counter()); } return counter; } static synchronized TimerMetric getTimer(String name, Clock clock) { TimerMetric timer = getMetric(name, TimerMetric.class); if (timer == null) { timer = setMetric(name, TimerMetric.class, new TimerMetric(new MultiThreadTimer(clock))); } return timer; } static synchronized Metrics.Rate getRate(String name, Metrics.Counter count, Clock clock) { Metrics.Rate rate = getMetric(name, Metrics.Rate.class); if (rate == null) { rate = setMetric(name, Metrics.Rate.class, new Metrics.Rate(count, clock)); } return rate; } public static <T extends Metric> T getMetric(String name, Class<T> mClass) { final MetricSet<T> metricSet = Utils.cast(metricSets.get(mClass)); if (metricSet != null) { final T metric = metricSet.metrics.get(name); if (metric != null) { return metric; } } return null; } public static <T extends Metric> T setMetric(String name, Class<T> mClass, T metric) { MetricSet<T> metricSet = Utils.cast(metricSets.get(mClass)); if (metricSet == null) { metricSet = new MetricSet<T>(mClass); metricSets.put(mClass, metricSet); } metricSet.metrics.put(name, metric); return metric; } /** * Resets of all the currently registered metrics. */ public static synchronized void reset() { for (MetricSet<? extends Metric> metricSet : metricSets.values()) { for (Metric metric : metricSet.metrics.values()) { metric.reset(); } } } /** * This method prints a report of all the metrics that have been created during this * execution run. * @param stream the print stream to which to print the report */ public static synchronized void report(PrintStream stream) { final Map<String, Metric> allMetrics = new HashMap<String, Metric>(); for (MetricSet<? extends Metric> metricSet : metricSets.values()) { allMetrics.putAll(metricSet.metrics); } Map.Entry<String, Metric>[] array = Utils.cast(new Map.Entry[allMetrics.size()]); array = allMetrics.entrySet().toArray(array); Arrays.sort(array, new GlobalMetrics.EntryComparator()); for (Map.Entry<String, Metric> entry : array) { if (entry.getKey().length() > Metrics.longestMetricName) { Metrics.longestMetricName = entry.getKey().length(); } } for (Map.Entry<String, Metric> entry : array) { entry.getValue().report(entry.getKey(), stream); } stream.flush(); } }