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| 1 | /* | ||
| 2 | * Copyright (c) 1995, 2004, 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 sun.tools.java; | ||
| 27 | |||
| 28 | import java.util.Enumeration; | ||
| 29 | import java.io.File; | ||
| 30 | import java.io.IOException; | ||
| 31 | |||
| 32 | /** | ||
| 33 | * This class is used to represent the classes in a package. | ||
| 34 | * | ||
| 35 | * WARNING: The contents of this source file are not part of any | ||
| 36 | * supported API. Code that depends on them does so at its own risk: | ||
| 37 | * they are subject to change or removal without notice. | ||
| 38 | */ | ||
| 39 | public | ||
| 40 | class Package { | ||
| 41 | /** | ||
| 42 | * The path which we use to locate source files. | ||
| 43 | */ | ||
| 44 | ClassPath sourcePath; | ||
| 45 | |||
| 46 | /** | ||
| 47 | * The path which we use to locate class (binary) files. | ||
| 48 | */ | ||
| 49 | ClassPath binaryPath; | ||
| 50 | |||
| 51 | /** | ||
| 52 | * The path name of the package. | ||
| 53 | */ | ||
| 54 | String pkg; | ||
| 55 | |||
| 56 | /** | ||
| 57 | * Create a package given a class path, and package name. | ||
| 58 | */ | ||
| 59 | public Package(ClassPath path, Identifier pkg) throws IOException { | ||
| 60 | this(path, path, pkg); | ||
| 61 | } | ||
| 62 | |||
| 63 | /** | ||
| 64 | * Create a package given a source path, binary path, and package | ||
| 65 | * name. | ||
| 66 | */ | ||
| 67 | public Package(ClassPath sourcePath, | ||
| 68 | ClassPath binaryPath, | ||
| 69 | Identifier pkg) | ||
| 70 | throws IOException { | ||
| 71 | if (pkg.isInner()) | ||
| 72 | pkg = Identifier.lookup(pkg.getQualifier(), pkg.getFlatName()); | ||
| 73 | this.sourcePath = sourcePath; | ||
| 74 | this.binaryPath = binaryPath; | ||
| 75 | this.pkg = pkg.toString().replace('.', File.separatorChar); | ||
| 76 | } | ||
| 77 | |||
| 78 | /** | ||
| 79 | * Check if a class is defined in this package. | ||
| 80 | * (If it is an inner class name, it is assumed to exist | ||
| 81 | * only if its binary file exists. This is somewhat pessimistic.) | ||
| 82 | */ | ||
| 83 | public boolean classExists(Identifier className) { | ||
| 84 | return getBinaryFile(className) != null || | ||
| 85 | !className.isInner() && | ||
| 86 | getSourceFile(className) != null; | ||
| 87 | } | ||
| 88 | |||
| 89 | /** | ||
| 90 | * Check if the package exists | ||
| 91 | */ | ||
| 92 | public boolean exists() { | ||
| 93 | // Look for the directory on our binary path. | ||
| 94 | ClassFile dir = binaryPath.getDirectory(pkg); | ||
| 95 | if (dir != null && dir.isDirectory()) { | ||
| 96 | return true; | ||
| 97 | } | ||
| 98 | |||
| 99 | if (sourcePath != binaryPath) { | ||
| 100 | // Look for the directory on our source path. | ||
| 101 | dir = sourcePath.getDirectory(pkg); | ||
| 102 | if (dir != null && dir.isDirectory()) { | ||
| 103 | return true; | ||
| 104 | } | ||
| 105 | } | ||
| 106 | |||
| 107 | /* Accommodate ZIP files without CEN entries for directories | ||
| 108 | * (packages): look on class path for at least one binary | ||
| 109 | * file or one source file with the right package prefix | ||
| 110 | */ | ||
| 111 | String prefix = pkg + File.separator; | ||
| 112 | |||
| 113 | return binaryPath.getFiles(prefix, ".class").hasMoreElements() | ||
| 114 | || sourcePath.getFiles(prefix, ".java").hasMoreElements(); | ||
| 115 | } | ||
| 116 | |||
| 117 | private String makeName(String fileName) { | ||
| 118 | return pkg.equals("") ? fileName : pkg + File.separator + fileName; | ||
| 119 | } | ||
| 120 | |||
| 121 | /** | ||
| 122 | * Get the .class file of a class | ||
| 123 | */ | ||
| 124 | public ClassFile getBinaryFile(Identifier className) { | ||
| 125 | className = Type.mangleInnerType(className); | ||
| 126 | String fileName = className.toString() + ".class"; | ||
| 127 | return binaryPath.getFile(makeName(fileName)); | ||
| 128 | } | ||
| 129 | |||
| 130 | /** | ||
| 131 | * Get the .java file of a class | ||
| 132 | */ | ||
| 133 | public ClassFile getSourceFile(Identifier className) { | ||
| 134 | // The source file of an inner class is that of its outer class. | ||
| 135 | className = className.getTopName(); | ||
| 136 | String fileName = className.toString() + ".java"; | ||
| 137 | return sourcePath.getFile(makeName(fileName)); | ||
| 138 | } | ||
| 139 | |||
| 140 | public ClassFile getSourceFile(String fileName) { | ||
| 141 | if (fileName.endsWith(".java")) { | ||
| 142 | return sourcePath.getFile(makeName(fileName)); | ||
| 143 | } | ||
| 144 | return null; | ||
| 145 | } | ||
| 146 | |||
| 147 | public Enumeration getSourceFiles() { | ||
| 148 | return sourcePath.getFiles(pkg, ".java"); | ||
| 149 | } | ||
| 150 | |||
| 151 | public Enumeration getBinaryFiles() { | ||
| 152 | return binaryPath.getFiles(pkg, ".class"); | ||
| 153 | } | ||
| 154 | |||
| 155 | public String toString() { | ||
| 156 | if (pkg.equals("")) { | ||
| 157 | return "unnamed package"; | ||
| 158 | } | ||
| 159 | return "package " + pkg; | ||
| 160 | } | ||
| 161 | } | ||