| /* |
| * Copyright (c) 2015, 2016, 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 jdk.test.lib.hprof; |
| |
| import java.io.BufferedOutputStream; |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.PrintStream; |
| |
| import jdk.test.lib.hprof.model.Snapshot; |
| import jdk.test.lib.hprof.parser.Reader; |
| |
| /** |
| * Helper class to parse a java heap dump file. |
| */ |
| public class HprofParser { |
| |
| public static void main(String[] args) throws Exception { |
| if (args.length < 1) { |
| System.out.println("No arguments supplied"); |
| } |
| File dump = new File(args[0]); |
| if (!dump.exists() || !dump.isFile()) { |
| throw new RuntimeException("The dump file does not exist or not a file"); |
| } |
| parse(dump); |
| } |
| |
| /** |
| * @see #parse(File, boolean, boolean, boolean) |
| */ |
| public static File parse(File dump) throws Exception { |
| return parse(dump, false, true, true); |
| } |
| |
| /** |
| * @see #parse(File, boolean, boolean, boolean) |
| */ |
| public static File parseWithDebugInfo(File dump) throws Exception { |
| return parse(dump, true, true, true); |
| } |
| |
| /** |
| * Parse a java heap dump file |
| * |
| * @param dump Heap dump file to parse |
| * @param debug Turn on/off debug file parsing |
| * @param callStack Turn on/off tracking of object allocation call stack |
| * @param calculateRefs Turn on/off tracking object allocation call stack |
| * @throws Exception |
| * @return File containing output from the parser |
| */ |
| public static File parse(File dump, boolean debug, boolean callStack, boolean calculateRefs) throws Exception { |
| File out = new File("hprof." + System.currentTimeMillis() + ".out"); |
| if (out.exists()) { |
| out.delete(); |
| } |
| |
| PrintStream psSystemOut = System.out; |
| try (PrintStream psHprof = new PrintStream(new BufferedOutputStream(new FileOutputStream(out.getAbsolutePath())))) { |
| System.setOut(psHprof); |
| |
| int debugLevel = debug ? 2 : 0; |
| try (Snapshot snapshot = Reader.readFile(dump.getAbsolutePath(), callStack, debugLevel)) { |
| System.out.println("Snapshot read, resolving..."); |
| snapshot.resolve(calculateRefs); |
| System.out.println("Snapshot resolved."); |
| } |
| } finally { |
| System.setOut(psSystemOut); |
| } |
| |
| return out; |
| } |
| |
| } |