1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.dx.command.annotool; 18 19import java.lang.annotation.ElementType; 20import java.util.EnumSet; 21import java.util.Locale; 22 23public class Main { 24 25 private static class InvalidArgumentException extends Exception { 26 InvalidArgumentException() { 27 super(); 28 } 29 30 InvalidArgumentException(String s) { 31 super(s); 32 } 33 } 34 35 enum PrintType { 36 CLASS, 37 INNERCLASS, 38 METHOD, 39 PACKAGE 40 } 41 42 43 static class Arguments { 44 /** 45 * from --annotation, dot-separated classname 46 * of annotation to look for 47 */ 48 String aclass; 49 50 /** from --eTypes */ 51 EnumSet<ElementType> eTypes = EnumSet.noneOf(ElementType.class); 52 53 /** from --print */ 54 EnumSet<PrintType> printTypes = EnumSet.noneOf(PrintType.class); 55 56 /** remaining positional arguments */ 57 String[] files; 58 59 Arguments() { 60 } 61 62 void parse (String[] argArray) throws InvalidArgumentException { 63 for (int i = 0; i < argArray.length; i++) { 64 String arg = argArray[i]; 65 66 if (arg.startsWith("--annotation=")) { 67 String argParam = arg.substring(arg.indexOf('=') + 1); 68 if (aclass != null) { 69 throw new InvalidArgumentException( 70 "--annotation can only be specified once."); 71 } 72 aclass = argParam.replace('.','/'); 73 } else if (arg.startsWith("--element=")) { 74 String argParam = arg.substring(arg.indexOf('=') + 1); 75 76 try { 77 for (String p : argParam.split(",")) { 78 eTypes.add(ElementType.valueOf(p.toUpperCase(Locale.ROOT))); 79 } 80 } catch (IllegalArgumentException ex) { 81 throw new InvalidArgumentException( 82 "invalid --element"); 83 } 84 } else if (arg.startsWith("--print=")) { 85 String argParam = arg.substring(arg.indexOf('=') + 1); 86 87 try { 88 for (String p : argParam.split(",")) { 89 printTypes.add(PrintType.valueOf(p.toUpperCase(Locale.ROOT))); 90 } 91 } catch (IllegalArgumentException ex) { 92 throw new InvalidArgumentException("invalid --print"); 93 } 94 } else { 95 files = new String[argArray.length - i]; 96 System.arraycopy(argArray, i, files, 0, files.length); 97 break; 98 } 99 } 100 101 if (aclass == null) { 102 throw new InvalidArgumentException( 103 "--annotation must be specified"); 104 } 105 106 if (printTypes.isEmpty()) { 107 printTypes.add(PrintType.CLASS); 108 } 109 110 if (eTypes.isEmpty()) { 111 eTypes.add(ElementType.TYPE); 112 } 113 114 EnumSet<ElementType> set = eTypes.clone(); 115 116 set.remove(ElementType.TYPE); 117 set.remove(ElementType.PACKAGE); 118 if (!set.isEmpty()) { 119 throw new InvalidArgumentException( 120 "only --element parameters 'type' and 'package' " 121 + "supported"); 122 } 123 } 124 } 125 126 /** 127 * This class is uninstantiable. 128 */ 129 private Main() { 130 // This space intentionally left blank. 131 } 132 133 public static void main(String[] argArray) { 134 135 final Arguments args = new Arguments(); 136 137 try { 138 args.parse(argArray); 139 } catch (InvalidArgumentException ex) { 140 System.err.println(ex.getMessage()); 141 142 throw new RuntimeException("usage"); 143 } 144 145 new AnnotationLister(args).process(); 146 } 147} 148