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 Tue Aug 26 14:52:59 2008 -0700
1.3 @@ -0,0 +1,191 @@
1.4 +/*
1.5 + * Copyright 2008 Sun Microsystems, Inc. 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. Sun designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
1.25 + * CA 95054 USA or visit www.sun.com if you need additional information or
1.26 + * have any 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 +public abstract class RelativePath implements Comparable<RelativePath> {
1.42 + /**
1.43 + * @param p must use '/' as an internal separator
1.44 + */
1.45 + protected RelativePath(String p) {
1.46 + path = p;
1.47 + }
1.48 +
1.49 + public abstract RelativeDirectory dirname();
1.50 +
1.51 + public abstract String basename();
1.52 +
1.53 + public File getFile(File directory) {
1.54 + if (path.length() == 0)
1.55 + return directory;
1.56 + return new File(directory, path.replace('/', File.separatorChar));
1.57 + }
1.58 +
1.59 + public int compareTo(RelativePath other) {
1.60 + return path.compareTo(other.path);
1.61 + }
1.62 +
1.63 + @Override
1.64 + public boolean equals(Object other) {
1.65 + if (!(other instanceof RelativePath))
1.66 + return false;
1.67 + return path.equals(((RelativePath) other).path);
1.68 + }
1.69 +
1.70 + @Override
1.71 + public int hashCode() {
1.72 + return path.hashCode();
1.73 + }
1.74 +
1.75 + @Override
1.76 + public String toString() {
1.77 + return "RelPath[" + path + "]";
1.78 + }
1.79 +
1.80 + public String getPath() {
1.81 + return path;
1.82 + }
1.83 +
1.84 + protected final String path;
1.85 +
1.86 + /**
1.87 + * Used to represent a platform-neutral subdirectory within a platform-specific
1.88 + * container, such as a directory or zip file.
1.89 + * Internally, the file separator is always '/', and if the path is not empty,
1.90 + * it always ends in a '/' as well.
1.91 + */
1.92 + public static class RelativeDirectory extends RelativePath {
1.93 +
1.94 + static RelativeDirectory forPackage(CharSequence packageName) {
1.95 + return new RelativeDirectory(packageName.toString().replace('.', '/'));
1.96 + }
1.97 +
1.98 + /**
1.99 + * @param p must use '/' as an internal separator
1.100 + */
1.101 + public RelativeDirectory(String p) {
1.102 + super(p.length() == 0 || p.endsWith("/") ? p : p + "/");
1.103 + }
1.104 +
1.105 + /**
1.106 + * @param p must use '/' as an internal separator
1.107 + */
1.108 + public RelativeDirectory(RelativeDirectory d, String p) {
1.109 + this(d.path + p);
1.110 + }
1.111 +
1.112 + @Override
1.113 + public RelativeDirectory dirname() {
1.114 + int l = path.length();
1.115 + if (l == 0)
1.116 + return this;
1.117 + int sep = path.lastIndexOf('/', l - 2);
1.118 + return new RelativeDirectory(path.substring(0, sep + 1));
1.119 + }
1.120 +
1.121 + @Override
1.122 + public String basename() {
1.123 + int l = path.length();
1.124 + if (l == 0)
1.125 + return path;
1.126 + int sep = path.lastIndexOf('/', l - 2);
1.127 + return path.substring(sep + 1, l - 1);
1.128 + }
1.129 +
1.130 + /**
1.131 + * Return true if this subdirectory "contains" the other path.
1.132 + * A subdirectory path does not contain itself.
1.133 + **/
1.134 + boolean contains(RelativePath other) {
1.135 + return other.path.length() > path.length() && other.path.startsWith(path);
1.136 + }
1.137 +
1.138 + @Override
1.139 + public String toString() {
1.140 + return "RelativeDirectory[" + path + "]";
1.141 + }
1.142 + }
1.143 +
1.144 + /**
1.145 + * Used to represent a platform-neutral file within a platform-specific
1.146 + * container, such as a directory or zip file.
1.147 + * Internally, the file separator is always '/'. It never ends in '/'.
1.148 + */
1.149 + public static class RelativeFile extends RelativePath {
1.150 + static RelativeFile forClass(CharSequence className, JavaFileObject.Kind kind) {
1.151 + return new RelativeFile(className.toString().replace('.', '/') + kind.extension);
1.152 + }
1.153 +
1.154 + public RelativeFile(String p) {
1.155 + super(p);
1.156 + if (p.endsWith("/"))
1.157 + throw new IllegalArgumentException(p);
1.158 + }
1.159 +
1.160 + /**
1.161 + * @param p must use '/' as an internal separator
1.162 + */
1.163 + public RelativeFile(RelativeDirectory d, String p) {
1.164 + this(d.path + p);
1.165 + }
1.166 +
1.167 + RelativeFile(RelativeDirectory d, RelativePath p) {
1.168 + this(d, p.path);
1.169 + }
1.170 +
1.171 + @Override
1.172 + public RelativeDirectory dirname() {
1.173 + int sep = path.lastIndexOf('/');
1.174 + return new RelativeDirectory(path.substring(0, sep + 1));
1.175 + }
1.176 +
1.177 + @Override
1.178 + public String basename() {
1.179 + int sep = path.lastIndexOf('/');
1.180 + return path.substring(sep + 1);
1.181 + }
1.182 +
1.183 + ZipEntry getZipEntry(ZipFile zip) {
1.184 + return zip.getEntry(path);
1.185 + }
1.186 +
1.187 + @Override
1.188 + public String toString() {
1.189 + return "RelativeFile[" + path + "]";
1.190 + }
1.191 +
1.192 + }
1.193 +
1.194 +}
