1 /*
   2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package build.tools.charsetmapping;
  27 
  28 import java.io.*;
  29 import java.util.Scanner;
  30 
  31 public class SRC {
  32 
  33     public static void genClass(Charset cs, String srcDir, String dstDir)
  34         throws Exception
  35     {
  36         String clzName = cs.clzName;
  37         String csName  = cs.csName;
  38         String pkgName = cs.pkgName;
  39 
  40         try (Scanner s = new Scanner(new File(srcDir, clzName + ".java.template"));
  41              PrintStream out = new PrintStream(new FileOutputStream(
  42                                   new File(dstDir, clzName + ".java")));) {
  43             while (s.hasNextLine()) {
  44                 String line = s.nextLine();
  45                 if (line.indexOf("$") < 0) {
  46                     out.println(line);
  47                     continue;
  48                 }
  49                 if (line.indexOf("$PACKAGE$") != -1) {
  50                     out.println(line.replace("$PACKAGE$", pkgName));
  51                 } else if (line.indexOf("$ALIASES$") != -1) {
  52                     if ("sun.nio.cs".equals(pkgName))
  53                         out.println(line.replace("$ALIASES$",
  54                                                  "StandardCharsets.aliases_" + clzName + "()"));
  55                     else
  56                         out.println(line.replace("$ALIASES$",
  57                                                  "ExtendedCharsets.aliasesFor(\"" + csName + "\")"));
  58                 } else {
  59                     out.println(line);
  60                 }
  61             }
  62         }
  63     }
  64 }