/*

 * Copyright (c) 2012, 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.

 */

/*

 * @test

 * @bug 6901992

 * @compile -XDignore.symbol.file JarIndexMergeTest.java

 * @run main JarIndexMergeTest

 * @summary InvalidJarIndexException due to bug in sun.misc.JarIndex.merge()

 * @author  Diego Belfer

 */

import java.io.File;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.util.LinkedList;

import java.util.jar.JarEntry;

import java.util.jar.JarOutputStream;

// implementation specific API

import sun.misc.JarIndex;

public class JarIndexMergeTest {

    static final String slash = File.separator;

    static final String testClassesDir = System.getProperty("test.classes", ".");

    static final File tmpFolder = new File(testClassesDir);

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

        File jar1 = buildJar1();

        File jar2 = buildJar2();

        JarIndex jarIndex1 = new JarIndex(new String[] { jar1.getAbsolutePath() });

        JarIndex jarIndex2 = new JarIndex(new String[] { jar2.getAbsolutePath() });

        jarIndex1.merge(jarIndex2, null);

        assertFileResolved(jarIndex2, "com/test1/resource1.file",

                           jar1.getAbsolutePath());

        assertFileResolved(jarIndex2, "com/test2/resource2.file",

                           jar2.getAbsolutePath());

    }

    static void assertFileResolved(JarIndex jarIndex2, String file,

                                   String jarName) {

        @SuppressWarnings("unchecked")

        LinkedList<String> jarLists = (LinkedList<String>)jarIndex2.get(file);

        if (jarLists == null || jarLists.size() == 0 ||

            !jarName.equals(jarLists.get(0))) {

            throw new RuntimeException(

                "Unexpected result: the merged index must resolve file: "

                + file);

        }

    }

    private static File buildJar1() throws FileNotFoundException, IOException {

        JarBuilder jar1Builder = new JarBuilder(tmpFolder, "jar1-merge.jar");

        jar1Builder.addResourceFile("com/test1/resource1.file", "resource1");

        return jar1Builder.build();

    }

    private static File buildJar2() throws FileNotFoundException, IOException {

        JarBuilder jar2Builder = new JarBuilder(tmpFolder, "jar2-merge.jar");

        jar2Builder.addResourceFile("com/test2/resource2.file", "resource2");

        return jar2Builder.build();

    }

    /*

     * Helper class for building jar files

     */

    public static class JarBuilder {

        private JarOutputStream os;

        private File jarFile;

        public JarBuilder(File tmpFolder, String jarName)

            throws FileNotFoundException, IOException

        {

            this.jarFile = new File(tmpFolder, jarName);

            this.os = new JarOutputStream(new FileOutputStream(jarFile));

        }

        public void addResourceFile(String pathFromRoot, String content)

            throws IOException

        {

            JarEntry entry = new JarEntry(pathFromRoot);

            os.putNextEntry(entry);

            os.write(content.getBytes("ASCII"));

            os.closeEntry();

        }

        public File build() throws IOException {

            os.close();

            return jarFile;

        }

    }

}