/*

 * Copyright (c) 2010, 2014, 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

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 */

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.util.ArrayList;

import java.util.Collections;

import java.util.HashMap;

import java.util.List;

import java.util.TimeZone;

import java.util.jar.JarEntry;

import java.util.jar.JarFile;

import java.util.jar.JarOutputStream;

/*

 * @test

 * @bug 6966740

 * @summary verify identical timestamps, unpacked in any timezone

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

 * @run main/othervm TimeStamp

 * @author ksrini

 */

/**

 * First we pack the file in some time zone say India, then we unpack the  file

 * in the current time zone, and ensure the timestamp recorded in the unpacked

 * jar are the same.

 */

public class TimeStamp {

    static final TimeZone tz = TimeZone.getDefault();

    public static void main(String... args) throws IOException {

        // make a local copy of our test file

        File srcFile = Utils.getGoldenJar();

        File goldenFile = new File("golden.jar");

        Utils.copyFile(srcFile, goldenFile);

        JarFile goldenJarFile = new JarFile(goldenFile);

        File packFile = new File("golden.pack");

        // set the test timezone and pack the file

        TimeZone.setDefault(TimeZone.getTimeZone("IST"));

        Utils.pack(goldenJarFile, packFile);

        TimeZone.setDefault(tz);   // reset the timezone

        // unpack in the  test timezone

        File istFile = new File("golden.jar.java.IST");

        unpackJava(packFile, istFile);

        verifyJar(goldenFile, istFile);

        istFile.delete();

        // unpack in some other timezone

        File pstFile = new File("golden.jar.java.PST");

        unpackJava(packFile, pstFile);

        verifyJar(goldenFile, pstFile);

        pstFile.delete();

        // repeat the test for unpack200 tool.

        istFile = new File("golden.jar.native.IST");

        unpackNative(packFile, istFile);

        verifyJar(goldenFile, istFile);

        istFile.delete();

        pstFile = new File("golden.jar.native.PST");

        unpackNative(packFile, pstFile);

        verifyJar(goldenFile, pstFile);

        pstFile.delete();

        Utils.cleanup();

    }

    static void unpackNative(File packFile, File outFile) {

        String name = outFile.getName();

        String tzname = name.substring(name.lastIndexOf(".") + 1);

        HashMap<String, String> env = new HashMap<>();

        switch(tzname) {

            case "PST":

                env.put("TZ", "US/Pacific");

                break;

            case "IST":

                env.put("TZ", "Asia/Calcutta");

                break;

            default:

                throw new RuntimeException("not implemented: " + tzname);

        }

        List<String> cmdsList = new ArrayList<>();

        cmdsList.add(Utils.getUnpack200Cmd());

        cmdsList.add(packFile.getName());

        cmdsList.add(outFile.getName());

        Utils.runExec(cmdsList, env);

    }

    static void unpackJava(File packFile, File outFile) throws IOException {

        String name = outFile.getName();

        String tzname = name.substring(name.lastIndexOf(".") + 1);

        JarOutputStream jos = null;

        try {

            TimeZone.setDefault(TimeZone.getTimeZone(tzname));

            jos = new JarOutputStream(new FileOutputStream(outFile));

            System.out.println("Using timezone: " + TimeZone.getDefault());

            Utils.unpackj(packFile, jos);

        } finally {

            Utils.close(jos);

            TimeZone.setDefault(tz); // always reset

        }

    }

    static void verifyJar(File f1, File f2) throws IOException {

        int errors = 0;

        JarFile jf1 = null;

        JarFile jf2 = null;

        try {

            jf1 = new JarFile(f1);

            jf2 = new JarFile(f2);

            System.out.println("Verifying: " + f1 + " and " + f2);

            for (JarEntry je1 : Collections.list(jf1.entries())) {

                JarEntry je2 = jf2.getJarEntry(je1.getName());

                if (je1.getTime() != je2.getTime()) {

                    System.out.println("Error:");

                    System.out.println("  expected:" + jf1.getName() + ":"

                            + je1.getName() + ":" + je1.getTime());

                    System.out.println("  obtained:" + jf2.getName() + ":"

                            + je2.getName() + ":" + je2.getTime());

                    errors++;

                }

            }

        } finally {

            Utils.close(jf1);

            Utils.close(jf2);

        }

        if (errors > 0) {

            throw new RuntimeException("FAIL:" + errors + " error(s) encounted");

        }

    }

}