1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/src/share/classes/com/sun/tools/javac/file/RelativePath.java Wed Apr 27 01:34:52 2016 +0800 1.3 @@ -0,0 +1,196 @@ 1.4 +/* 1.5 + * Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved. 1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 1.7 + * 1.8 + * This code is free software; you can redistribute it and/or modify it 1.9 + * under the terms of the GNU General Public License version 2 only, as 1.10 + * published by the Free Software Foundation. Oracle designates this 1.11 + * particular file as subject to the "Classpath" exception as provided 1.12 + * by Oracle in the LICENSE file that accompanied this code. 1.13 + * 1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT 1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1.17 + * version 2 for more details (a copy is included in the LICENSE file that 1.18 + * accompanied this code). 1.19 + * 1.20 + * You should have received a copy of the GNU General Public License version 1.21 + * 2 along with this work; if not, write to the Free Software Foundation, 1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 1.23 + * 1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 1.25 + * or visit www.oracle.com if you need additional information or have any 1.26 + * questions. 1.27 + */ 1.28 + 1.29 +package com.sun.tools.javac.file; 1.30 + 1.31 +import java.io.File; 1.32 +import java.util.zip.ZipEntry; 1.33 +import java.util.zip.ZipFile; 1.34 +import javax.tools.JavaFileObject; 1.35 + 1.36 +/** 1.37 + * Used to represent a platform-neutral path within a platform-specific 1.38 + * container, such as a directory or zip file. 1.39 + * Internally, the file separator is always '/'. 1.40 + * 1.41 + * <p><b>This is NOT part of any supported API. 1.42 + * If you write code that depends on this, you do so at your own risk. 1.43 + * This code and its internal interfaces are subject to change or 1.44 + * deletion without notice.</b> 1.45 + */ 1.46 +public abstract class RelativePath implements Comparable<RelativePath> { 1.47 + /** 1.48 + * @param p must use '/' as an internal separator 1.49 + */ 1.50 + protected RelativePath(String p) { 1.51 + path = p; 1.52 + } 1.53 + 1.54 + public abstract RelativeDirectory dirname(); 1.55 + 1.56 + public abstract String basename(); 1.57 + 1.58 + public File getFile(File directory) { 1.59 + if (path.length() == 0) 1.60 + return directory; 1.61 + return new File(directory, path.replace('/', File.separatorChar)); 1.62 + } 1.63 + 1.64 + public int compareTo(RelativePath other) { 1.65 + return path.compareTo(other.path); 1.66 + } 1.67 + 1.68 + @Override 1.69 + public boolean equals(Object other) { 1.70 + if (!(other instanceof RelativePath)) 1.71 + return false; 1.72 + return path.equals(((RelativePath) other).path); 1.73 + } 1.74 + 1.75 + @Override 1.76 + public int hashCode() { 1.77 + return path.hashCode(); 1.78 + } 1.79 + 1.80 + @Override 1.81 + public String toString() { 1.82 + return "RelPath[" + path + "]"; 1.83 + } 1.84 + 1.85 + public String getPath() { 1.86 + return path; 1.87 + } 1.88 + 1.89 + protected final String path; 1.90 + 1.91 + /** 1.92 + * Used to represent a platform-neutral subdirectory within a platform-specific 1.93 + * container, such as a directory or zip file. 1.94 + * Internally, the file separator is always '/', and if the path is not empty, 1.95 + * it always ends in a '/' as well. 1.96 + */ 1.97 + public static class RelativeDirectory extends RelativePath { 1.98 + 1.99 + static RelativeDirectory forPackage(CharSequence packageName) { 1.100 + return new RelativeDirectory(packageName.toString().replace('.', '/')); 1.101 + } 1.102 + 1.103 + /** 1.104 + * @param p must use '/' as an internal separator 1.105 + */ 1.106 + public RelativeDirectory(String p) { 1.107 + super(p.length() == 0 || p.endsWith("/") ? p : p + "/"); 1.108 + } 1.109 + 1.110 + /** 1.111 + * @param p must use '/' as an internal separator 1.112 + */ 1.113 + public RelativeDirectory(RelativeDirectory d, String p) { 1.114 + this(d.path + p); 1.115 + } 1.116 + 1.117 + @Override 1.118 + public RelativeDirectory dirname() { 1.119 + int l = path.length(); 1.120 + if (l == 0) 1.121 + return this; 1.122 + int sep = path.lastIndexOf('/', l - 2); 1.123 + return new RelativeDirectory(path.substring(0, sep + 1)); 1.124 + } 1.125 + 1.126 + @Override 1.127 + public String basename() { 1.128 + int l = path.length(); 1.129 + if (l == 0) 1.130 + return path; 1.131 + int sep = path.lastIndexOf('/', l - 2); 1.132 + return path.substring(sep + 1, l - 1); 1.133 + } 1.134 + 1.135 + /** 1.136 + * Return true if this subdirectory "contains" the other path. 1.137 + * A subdirectory path does not contain itself. 1.138 + **/ 1.139 + boolean contains(RelativePath other) { 1.140 + return other.path.length() > path.length() && other.path.startsWith(path); 1.141 + } 1.142 + 1.143 + @Override 1.144 + public String toString() { 1.145 + return "RelativeDirectory[" + path + "]"; 1.146 + } 1.147 + } 1.148 + 1.149 + /** 1.150 + * Used to represent a platform-neutral file within a platform-specific 1.151 + * container, such as a directory or zip file. 1.152 + * Internally, the file separator is always '/'. It never ends in '/'. 1.153 + */ 1.154 + public static class RelativeFile extends RelativePath { 1.155 + static RelativeFile forClass(CharSequence className, JavaFileObject.Kind kind) { 1.156 + return new RelativeFile(className.toString().replace('.', '/') + kind.extension); 1.157 + } 1.158 + 1.159 + public RelativeFile(String p) { 1.160 + super(p); 1.161 + if (p.endsWith("/")) 1.162 + throw new IllegalArgumentException(p); 1.163 + } 1.164 + 1.165 + /** 1.166 + * @param p must use '/' as an internal separator 1.167 + */ 1.168 + public RelativeFile(RelativeDirectory d, String p) { 1.169 + this(d.path + p); 1.170 + } 1.171 + 1.172 + RelativeFile(RelativeDirectory d, RelativePath p) { 1.173 + this(d, p.path); 1.174 + } 1.175 + 1.176 + @Override 1.177 + public RelativeDirectory dirname() { 1.178 + int sep = path.lastIndexOf('/'); 1.179 + return new RelativeDirectory(path.substring(0, sep + 1)); 1.180 + } 1.181 + 1.182 + @Override 1.183 + public String basename() { 1.184 + int sep = path.lastIndexOf('/'); 1.185 + return path.substring(sep + 1); 1.186 + } 1.187 + 1.188 + ZipEntry getZipEntry(ZipFile zip) { 1.189 + return zip.getEntry(path); 1.190 + } 1.191 + 1.192 + @Override 1.193 + public String toString() { 1.194 + return "RelativeFile[" + path + "]"; 1.195 + } 1.196 + 1.197 + } 1.198 + 1.199 +}