/*

 * Copyright (c) 2007, 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 5030265

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

 * @run main/othervm UnicodeTest

 * @summary Verify that the J2RE can handle all legal Unicode characters

 *          in class names unless limited by the file system encoding

 *          or the encoding used for command line arguments.

 * @author Norbert Lindenberg, ksrini

 */

/*

 * This class creates Java source files using Unicode characters

 * that test the limits of what's possible

 * - in situations where the platform encoding imposes limits

 *   (command line arguments, non-Unicode file system)

 * - in situations where full Unicode is supported

 *   (file system access in UTF-8 locales and on Windows 2000++,

 *    jar file contents)

 *

 * This test needs to be run in othervm as the locale is reset.

 */

import java.io.File;

import java.io.FileOutputStream;

import java.io.OutputStreamWriter;

import java.nio.charset.Charset;

import java.util.Locale;

public class UnicodeTest extends TestHelper {

    static final File UnicodeTestSrc        = new File("UnicodeTest-src");

    static final File UnicodeTestClasses    = new File("UnicodeTest-classes");

    static final String UnicodeTestJarName  = "UnicodeTest" + JAR_FILE_EXT;

    static final File UnicodeTestJar        = new File(UnicodeTestJarName);

    static final File SolarisUnicodeTestJar = new File(TEST_SOURCES_DIR,

                                                       UnicodeTestJarName);

    /*

     * the main method is a port of the shell based test to a java, this

     * eliminates the need for MKS on windows, thus we can rely on consistent

     * results regardless of the shell being used.

     */

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

        System.out.println("creating test source files");

        UnicodeTestSrc.mkdirs();

        UnicodeTestClasses.mkdirs();

        String classname = generateSources();

        File javaFile = new File(UnicodeTestSrc, classname + JAVA_FILE_EXT);

        System.out.println("building test apps");

        compile("-encoding", "UTF-8",

                "-sourcepath", UnicodeTestSrc.getAbsolutePath(),

                "-d", UnicodeTestClasses.getAbsolutePath(),

                javaFile.getAbsolutePath());

        createJar("-cvfm", UnicodeTestJar.getAbsolutePath(),

                  new File(UnicodeTestSrc, "MANIFEST.MF").getAbsolutePath(),

                  "-C", UnicodeTestClasses.getAbsolutePath(), ".");

        if (!UnicodeTestJar.exists()) {

            throw new Error("failed to create " + UnicodeTestJar.getAbsolutePath());

        }

        System.out.println("running test app using class file");

        TestResult tr = doExec(javaCmd,

                        "-cp", UnicodeTestClasses.getAbsolutePath(), classname);

        if (!tr.isOK()) {

            System.out.println(tr);

            throw new RuntimeException("test fails");

        }

        System.out.println("delete generated files with non-ASCII names");

        recursiveDelete(UnicodeTestSrc);

        recursiveDelete(UnicodeTestClasses);

        /*

         * test in whatever the default locale is

         */

        runJarTests();

        /*

         * if the Japanese locale is available, test in that locale as well

         */

        if (setLocale(Locale.JAPANESE)) {

            runJarTests();

        }

       /*

        * if we can switch to a C locale, then test whether jar files with

        * non-ASCII characters in the manifest still work in this crippled

        * environment

        */

        if (setLocale(Locale.ENGLISH)) {

            runJarTests();

        }

        // thats it we are outta here

    }

    static void runJarTests() {

        System.out.println("running test app using newly built jar file in " +

                Locale.getDefault());

        runTest(UnicodeTestJar);

        System.out.println("running test app using jar file " +

                "(built with Solaris UTF-8 locale) in " + Locale.getDefault());

        runTest(SolarisUnicodeTestJar);

    }

    static void runTest(File testJar) {

        TestResult tr = doExec(javaCmd, "-jar", testJar.getAbsolutePath());

        if (!tr.isOK()) {

            System.out.println(tr);

            throw new RuntimeException("test fails");

        }

    }

    static boolean setLocale(Locale desired) {

        if (Locale.getDefault().equals(desired)) {

            return true;  // already set nothing more

        }

        for (Locale l : Locale.getAvailableLocales()) {

            if (l == desired) {

                Locale.setDefault(l);

                return true;

            }

        }

        return false;

    }

    static String generateSources() throws Exception {

        String commandLineClassNameSuffix = commandLineClassNameSuffix();

        String commandLineClassName = "ClassA" + commandLineClassNameSuffix;

        String manifestClassName = "ClassB" +

                (hasUnicodeFileSystem() ? unicode : commandLineClassNameSuffix);

        generateSource(commandLineClassName, manifestClassName);

        generateSource(manifestClassName, commandLineClassName);

        generateManifest(manifestClassName);

        return commandLineClassName;

    }

    private static final String defaultEncoding = Charset.defaultCharset().name();

    // language names taken from java.util.Locale.getDisplayLanguage for the respective language

    private static final String arabic = "\u0627\u0644\u0639\u0631\u0628\u064a\u0629";

    private static final String s_chinese = "\u4e2d\u6587";

    private static final String t_chinese = "\u4e2d\u6587";

    private static final String russian = "\u0440\u0443\u0441\u0441\u043A\u0438\u0439";

    private static final String hindi = "\u0939\u093f\u0902\u0926\u0940";

    private static final String greek = "\u03b5\u03bb\u03bb\u03b7\u03bd\u03b9\u03ba\u03ac";

    private static final String hebrew = "\u05e2\u05d1\u05e8\u05d9\u05ea";

    private static final String japanese = "\u65e5\u672c\u8a9e";

    private static final String korean = "\ud55c\uad6d\uc5b4";

    private static final String lithuanian = "Lietuvi\u0173";

    private static final String czech = "\u010de\u0161tina";

    private static final String turkish = "T\u00fcrk\u00e7e";

    private static final String spanish = "espa\u00f1ol";

    private static final String thai = "\u0e44\u0e17\u0e22";

    private static final String unicode = arabic + s_chinese + t_chinese

            + russian + hindi + greek + hebrew + japanese + korean

            + lithuanian + czech + turkish + spanish + thai;

    private static String commandLineClassNameSuffix() {

        // Mapping from main platform encodings to language names

        // for Unix and Windows, respectively. Use empty suffix

        // for Windows encodings where OEM encoding differs.

        // Use null if encoding isn't used.

        String[][] names = {

            { "UTF-8",          unicode,        ""              },

            { "windows-1256",   null,           ""              },

            { "iso-8859-6",     arabic,         null            },

            { "GBK",            s_chinese,      s_chinese       },

            { "GB18030",        s_chinese,      s_chinese       },

            { "GB2312",         s_chinese,      null            },

            { "x-windows-950",  null,           t_chinese       },

            { "x-MS950-HKSCS",  null,           t_chinese       },

            { "x-euc-tw",       t_chinese,      null            },

            { "Big5",           t_chinese,      null            },

            { "Big5-HKSCS",     t_chinese,      null            },

            { "windows-1251",   null,           ""              },

            { "iso-8859-5",     russian,        null            },

            { "koi8-r",         russian,        null            },

            { "windows-1253",   null,           ""              },

            { "iso-8859-7",     greek,          null            },

            { "windows-1255",   null,           ""              },

            { "iso8859-8",      hebrew,         null            },

            { "windows-31j",    null,           japanese        },

            { "x-eucJP-Open",   japanese,       null            },

            { "x-EUC-JP-LINUX", japanese,       null            },

            { "x-pck",          japanese,       null            },

            { "x-windows-949",  null,           korean          },

            { "euc-kr",         korean,         null            },

            { "windows-1257",   null,           ""              },

            { "iso-8859-13",    lithuanian,     null            },

            { "windows-1250",   null,           ""              },

            { "iso-8859-2",     czech,          null            },

            { "windows-1254",   null,           ""              },

            { "iso-8859-9",     turkish,        null            },

            { "windows-1252",   null,           ""              },

            { "iso-8859-1",     spanish,        null            },

            { "iso-8859-15",    spanish,        null            },

            { "x-windows-874",  null,           thai            },

            { "tis-620",        thai,           null            },

        };

        int column = isWindows ? 2 : 1;

        for (int i = 0; i < names.length; i++) {

             if (names[i][0].equalsIgnoreCase(defaultEncoding)) {

                 return names[i][column];

             }

         }

         return "";

    }

    private static boolean hasUnicodeFileSystem() {

        return (isWindows) ? true : defaultEncoding.equalsIgnoreCase("UTF-8");

    }

    private static void generateSource(String thisClass, String otherClass) throws Exception {

        File file = new File(UnicodeTestSrc, thisClass + JAVA_FILE_EXT);

        OutputStreamWriter out = new OutputStreamWriter(new FileOutputStream(file), "UTF-8");

        out.write("public class " + thisClass + " {\n");

        out.write("    public static void main(String[] args) {\n");

        out.write("        if (!" + otherClass + "." + otherClass.toLowerCase() + "().equals(\"" + otherClass + "\")) {\n");

        out.write("            throw new RuntimeException();\n");

        out.write("        }\n");

        out.write("    }\n");

        out.write("    public static String " + thisClass.toLowerCase() + "() {\n");

        out.write("        return \"" + thisClass + "\";\n");

        out.write("    }\n");

        out.write("}\n");

        out.close();

    }

    private static void generateManifest(String mainClass) throws Exception {

        File file = new File(UnicodeTestSrc, "MANIFEST.MF");

        FileOutputStream out = new FileOutputStream(file);

        out.write("Manifest-Version: 1.0\n".getBytes("UTF-8"));

        // Header lines are limited to 72 bytes.

        // The manifest spec doesn't say we have to break at character boundaries,

        // so we rudely break at byte boundaries.

        byte[] headerBytes = ("Main-Class: " + mainClass + "\n").getBytes("UTF-8");

        if (headerBytes.length <= 72) {

            out.write(headerBytes);

        } else {

            out.write(headerBytes, 0, 72);

            int start = 72;

            while (headerBytes.length > start) {

                out.write((byte) '\n');

                out.write((byte) ' ');

                int count = Math.min(71, headerBytes.length - start);

                out.write(headerBytes, start, count);

                start += count;

            }

        }

        out.close();

    }

}