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 26package build.tools.module; 27 28import java.io.BufferedReader; 29import java.io.BufferedWriter; 30import java.io.IOException; 31import java.io.InputStream; 32import java.io.InputStreamReader; 33import java.io.PrintWriter; 34import java.nio.charset.StandardCharsets; 35import java.nio.file.Files; 36import java.nio.file.Path; 37import java.nio.file.Paths; 38import java.util.Arrays; 39import java.util.Set; 40import java.util.stream.Collectors; 41import java.util.stream.Stream; 42 43public class GenModuleLoaderMap { 44 private static final String USAGE = 45 "GenModuleLoaderMap -o <output-file> -boot m1[,m2]* -platform m3[,m4]* <original-source>"; 46 47 public static void main(String... args) throws Exception { 48 // default set of boot modules and ext modules 49 Stream<String> bootModules = Stream.empty(); 50 Stream<String> platformModules = Stream.empty(); 51 Path outfile = null; 52 Path source = null; 53 for (int i=0; i < args.length; i++) { 54 String option = args[i]; 55 if (option.startsWith("-")) { 56 String arg = args[++i]; 57 if (option.equals("-boot")) { 58 String[] mns = arg.split(","); 59 bootModules = Stream.concat(bootModules, Arrays.stream(mns)); 60 } else if (option.equals("-platform")) { 61 String[] mns = arg.split(","); 62 platformModules = Stream.concat(platformModules, Arrays.stream(mns)); 63 } else if (option.equals("-o")) { 64 outfile = Paths.get(arg); 65 } else { 66 throw new IllegalArgumentException("invalid option: " + option); 67 } 68 } else { 69 source = Paths.get(option); 70 } 71 } 72 73 if (outfile == null) { 74 throw new IllegalArgumentException("-o must be specified"); 75 } 76 if (Files.notExists(source)) { 77 throw new IllegalArgumentException(source + " not exist"); 78 } 79 80 boolean needsQuotes = outfile.toString().contains(".java.tmp"); 81 82 try (BufferedWriter bw = Files.newBufferedWriter(outfile, StandardCharsets.UTF_8); 83 PrintWriter writer = new PrintWriter(bw)) { 84 for (String line : Files.readAllLines(source)) { 85 if (line.contains("@@BOOT_MODULE_NAMES@@")) { 86 line = patch(line, "@@BOOT_MODULE_NAMES@@", bootModules, needsQuotes); 87 } else if (line.contains("@@PLATFORM_MODULE_NAMES@@")) { 88 line = patch(line, "@@PLATFORM_MODULE_NAMES@@", platformModules, needsQuotes); 89 } 90 writer.println(line); 91 } 92 } 93 } 94 95 private static String patch(String s, String tag, Stream<String> stream, boolean needsQuotes) { 96 String mns = null; 97 if (needsQuotes) { 98 mns = stream.sorted() 99 .collect(Collectors.joining("\",\n \"")); 100 } else { 101 mns = stream.sorted() 102 .collect(Collectors.joining("\n")); 103 } 104 return s.replace(tag, mns); 105 } 106 107 /** 108 * Reads the contents of the given modules file. 109 */ 110 private static Set<String> readModuleSet(String name) throws IOException { 111 try (InputStream is = GenModuleLoaderMap.class.getResourceAsStream(name); 112 BufferedReader reader = new BufferedReader(new InputStreamReader(is))) { 113 return reader.lines().collect(Collectors.toSet()); 114 } 115 } 116} 117