com.hazelcast.shaded.org.codehaus.janino.tools.HprofScrubber Maven / Gradle / Ivy

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SQL Parser and Optimizer
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/*
 * Janino - An embedded Java[TM] compiler
 *
 * Copyright (c) 2001-2010 Arno Unkrig. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
 * following conditions are met:
 *
 *    1. Redistributions of source code must retain the above copyright notice, this list of conditions and the
 *       following disclaimer.
 *    2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
 *       following disclaimer in the documentation and/or other materials provided with the distribution.
 *    3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote
 *       products derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.hazelcast.shaded.org.codehaus.janino.tools;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.text.FieldPosition;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.StringTokenizer;

import com.hazelcast.shaded.org.codehaus.commons.nullanalysis.Nullable;

/**
 * Example for object allocation statistics:
 *  *     java -Xrunhprof:heap=sites,monitor=n,cutoff=0,depth=4 MyClass
 * 
 */
public final
class HprofScrubber {
    private HprofScrubber() {}

    private static
    class Site {
        public final int    allocatedBytes;
        public final int    allocatedObjects;
        public final int    traceNumber;
        public final String className;

        Site(int allocatedBytes, int allocatedObjects, int traceNumber, String className) {
            this.allocatedBytes   = allocatedBytes;
            this.allocatedObjects = allocatedObjects;
            this.traceNumber      = traceNumber;
            this.className        = className;
        }
    }

    private static
    class Sample {
        public final int count;
        public final int traceNumber;

        Sample(int count, int traceNumber) {
            this.count       = count;
            this.traceNumber = traceNumber;
        }
    }

    public static void // SUPPRESS CHECKSTYLE JavadocMethod
    main(String[] args) throws Exception {
        String fileName = args.length == 0 ? "java.hprof.txt" : args[0];

        BufferedReader br = new BufferedReader(new FileReader(fileName));
        try {
            Map traces  = new HashMap<>();
            List                                        sites   = new ArrayList<>();
            List                                      samples = new ArrayList<>();

            String s = br.readLine();
            while (s != null) {
                if (s.startsWith("SITES BEGIN")) {
                    br.readLine();
                    br.readLine();
                    for (;;) {
                        s = br.readLine();
                        if (s.startsWith("SITES END")) break;
                        StringTokenizer st = new StringTokenizer(s);
                        st.nextToken(); // rank
                        st.nextToken(); // percent self
                        st.nextToken(); // percent accum
                        st.nextToken(); // live bytes
                        st.nextToken(); // live objects
                        sites.add(new Site(
                            Integer.parseInt(st.nextToken()), // allocatedBytes
                            Integer.parseInt(st.nextToken()), // allocatedObjects
                            Integer.parseInt(st.nextToken()), // traceNumber
                            st.nextToken()                    // className
                        ));
                    }
                } else
                if (s.startsWith("TRACE ") && s.endsWith(":")) {
                    int          traceNumber = Integer.parseInt(s.substring(6, s.length() - 1));
                    List l           = new ArrayList<>();
                    for (;;) {
                        s = br.readLine();
                        if (!s.startsWith("\t")) break;
                        l.add(s.substring(1));
                    }
                    traces.put(
                        new Integer(traceNumber),
                        (String[]) l.toArray(new String[l.size()])
                    );
                } else
                if (s.startsWith("CPU SAMPLES BEGIN")) {
                    br.readLine();
                    for (;;) {
                        s = br.readLine();
                        if (s.startsWith("CPU SAMPLES END")) break;
                        StringTokenizer st = new StringTokenizer(s);
                        st.nextToken(); // rank
                        st.nextToken(); // percent self
                        st.nextToken(); // percent accum
                        int count = Integer.parseInt(st.nextToken());
                        if (count == 0) continue;
                        int trace = Integer.parseInt(st.nextToken());
                        samples.add(new Sample(count, trace));
                    }
                } else {
                    s = br.readLine();
                }
            }

            HprofScrubber.dumpSites((Site[]) sites.toArray(new Site[sites.size()]), traces);

            HprofScrubber.dumpSamples((Sample[]) samples.toArray(new Sample[samples.size()]), traces);

        } finally {
            try { br.close(); } catch (IOException e) {}
        }
    }

    private static void
    dumpSites(Site[] ss, Map traces) {
        Arrays.sort(ss, new Comparator