/*

 * Copyright (c) 2010, 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

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 * questions.

 */

/*

 * @test

 * @bug 6531345

 * @summary check for unpacker memory leaks

 * @compile -XDignore.symbol.file Utils.java UnpackerMemoryTest.java

 * @run main/othervm/timeout=1200 -Xmx32m UnpackerMemoryTest

 * @author ksrini

 */

import java.io.File;

import java.io.FileOutputStream;

import java.io.PrintStream;

import java.io.IOException;

import java.util.jar.JarFile;

import java.util.jar.JarOutputStream;

public class UnpackerMemoryTest {

    private static void createPackFile(File packFile) throws IOException {

        File tFile = new File("test.dat");

        FileOutputStream fos = null;

        PrintStream ps = null;

        String jarFileName = Utils.baseName(packFile, Utils.PACK_FILE_EXT)

                + Utils.JAR_FILE_EXT;

        JarFile jarFile = null;

        try {

            fos = new FileOutputStream(tFile);

            ps = new PrintStream(fos);

            ps.println("A quick brown fox");

            Utils.jar("cvf", jarFileName, tFile.getName());

            jarFile = new JarFile(jarFileName);

            Utils.pack(jarFile, packFile);

        } finally {

            Utils.close(ps);

            tFile.delete();

            Utils.close(jarFile);

        }

    }

    public static void main(String[] args) throws Exception {

        String name = "foo";

        File packFile = new File(name + Utils.PACK_FILE_EXT);

        createPackFile(packFile);

        if (!packFile.exists()) {

           throw new RuntimeException(packFile + " not found");

        }

        File jarOut = new File(name + ".out");

        for (int i = 0; i < 2000; i++) {

            JarOutputStream jarOS = null;

            FileOutputStream fos = null;

            try {

                fos = new FileOutputStream(jarOut);

                jarOS = new JarOutputStream(fos);

                System.out.println("Unpacking[" + i + "]" + packFile);

                Utils.unpackn(packFile, jarOS);

            }  finally {

                Utils.close(jarOS);

                Utils.close(fos);

            }

        }

    }

}