1 /* 2 * Copyright (c) 2012, 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 org.openjdk.jigsaw; 27 28 /** 29 * <p> Architecture of a module-file, or module library </p> 30 */ 31 32 public class ModuleArchitecture { // ## find a better name 33 34 private static final String WILDCARD = ""; 35 36 public static final ModuleArchitecture ANY = 37 new ModuleArchitecture(WILDCARD, WILDCARD); 38 39 private final String os; 40 private final String arch; 41 42 private ModuleArchitecture(String os, String arch) { 43 this.os = os == null ? WILDCARD : os; 44 this.arch = arch == null ? WILDCARD : arch; 45 } 46 47 public static ModuleArchitecture create(String os, String arch) { 48 return new ModuleArchitecture(os, arch); 49 } 50 51 public static ModuleArchitecture createFromOS(String os) { 52 return new ModuleArchitecture(os, WILDCARD); 53 } 54 55 public static ModuleArchitecture createFromArch(String arch) { 56 return new ModuleArchitecture(WILDCARD, arch); 57 } 58 59 /** 60 * Determines if the given ModuleArchitecture matches this. 61 */ 62 public boolean matches(ModuleArchitecture modArch) { 63 if (!equalOrAny(os, modArch.os)) 64 return false; 65 if (!equalOrAny(arch, modArch.arch)) 66 return false; 67 68 return true; 69 } 70 71 // case-sensitive comparison 72 private boolean equalOrAny(String s1, String s2) { 73 if (s1.equals(WILDCARD)) 74 return true; 75 if (s2.equals(WILDCARD)) 76 return true; 77 if (s1.equals(s2)) 78 return true; 79 80 return false; 81 } 82 83 @Override 84 public boolean equals(Object ob) { 85 if (!(ob instanceof ModuleArchitecture)) 86 return false; 87 ModuleArchitecture that = (ModuleArchitecture)ob; 88 if (!(os.equals(that.os))) 89 return false; 90 if (!(arch.equals(that.arch))) 91 return false; 92 93 return true; 94 } 95 96 @Override 97 public int hashCode() { 98 return (os.hashCode() * 41 + arch.hashCode()); 99 } 100 101 public String os() { 102 return os; 103 } 104 105 public String arch() { 106 return arch; 107 } 108 109 @Override 110 public String toString() { 111 if (this.equals(ANY)) 112 return "ANY"; 113 if (arch.equals(WILDCARD)) 114 return os; 115 if (os.equals(WILDCARD)) 116 return arch; 117 return os + '-' + arch; 118 } 119 }