/*

 * Copyright (c) 2015, 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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 build.tools.charsetmapping;

import java.io.*;

import java.util.Scanner;

public class SRC {

    public static void genClass(Charset cs, String srcDir, String dstDir)

        throws Exception

    {

        String clzName = cs.clzName;

        String csName  = cs.csName;

        String pkgName = cs.pkgName;

        try (Scanner s = new Scanner(new File(srcDir, clzName + ".java.template"));

             PrintStream out = new PrintStream(new FileOutputStream(

                                  new File(dstDir, clzName + ".java")));) {

            while (s.hasNextLine()) {

                String line = s.nextLine();

                if (line.indexOf("$") < 0) {

                    out.println(line);

                    continue;

                }

                if (line.indexOf("$PACKAGE$") != -1) {

                    out.println(line.replace("$PACKAGE$", pkgName));

                } else if (line.indexOf("$ALIASES$") != -1) {

                    if ("sun.nio.cs".equals(pkgName))

                        out.println(line.replace("$ALIASES$",

                                                 "StandardCharsets.aliases_" + clzName));

                    else

                        out.println(line.replace("$ALIASES$",

                                                 "ExtendedCharsets.aliasesFor(\"" + csName + "\")"));

                } else {

                    out.println(line);

                }

            }

        }

    }

}