src/share/classes/com/sun/tools/javac/file/RelativePath.java

Tue, 26 Aug 2008 14:52:59 -0700

author
jjg
date
Tue, 26 Aug 2008 14:52:59 -0700
changeset 103
e571266ae14f
child 333
7c2d6da61646
permissions
-rw-r--r--

6508981: cleanup file separator handling in JavacFileManager
Reviewed-by: mcimadamore

jjg@103 1 /*
jjg@103 2 * Copyright 2008 Sun Microsystems, Inc. All Rights Reserved.
jjg@103 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jjg@103 4 *
jjg@103 5 * This code is free software; you can redistribute it and/or modify it
jjg@103 6 * under the terms of the GNU General Public License version 2 only, as
jjg@103 7 * published by the Free Software Foundation. Sun designates this
jjg@103 8 * particular file as subject to the "Classpath" exception as provided
jjg@103 9 * by Sun in the LICENSE file that accompanied this code.
jjg@103 10 *
jjg@103 11 * This code is distributed in the hope that it will be useful, but WITHOUT
jjg@103 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jjg@103 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
jjg@103 14 * version 2 for more details (a copy is included in the LICENSE file that
jjg@103 15 * accompanied this code).
jjg@103 16 *
jjg@103 17 * You should have received a copy of the GNU General Public License version
jjg@103 18 * 2 along with this work; if not, write to the Free Software Foundation,
jjg@103 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jjg@103 20 *
jjg@103 21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
jjg@103 22 * CA 95054 USA or visit www.sun.com if you need additional information or
jjg@103 23 * have any questions.
jjg@103 24 */
jjg@103 25
jjg@103 26 package com.sun.tools.javac.file;
jjg@103 27
jjg@103 28 import java.io.File;
jjg@103 29 import java.util.zip.ZipEntry;
jjg@103 30 import java.util.zip.ZipFile;
jjg@103 31 import javax.tools.JavaFileObject;
jjg@103 32
jjg@103 33 /**
jjg@103 34 * Used to represent a platform-neutral path within a platform-specific
jjg@103 35 * container, such as a directory or zip file.
jjg@103 36 * Internally, the file separator is always '/'.
jjg@103 37 */
jjg@103 38 public abstract class RelativePath implements Comparable<RelativePath> {
jjg@103 39 /**
jjg@103 40 * @param p must use '/' as an internal separator
jjg@103 41 */
jjg@103 42 protected RelativePath(String p) {
jjg@103 43 path = p;
jjg@103 44 }
jjg@103 45
jjg@103 46 public abstract RelativeDirectory dirname();
jjg@103 47
jjg@103 48 public abstract String basename();
jjg@103 49
jjg@103 50 public File getFile(File directory) {
jjg@103 51 if (path.length() == 0)
jjg@103 52 return directory;
jjg@103 53 return new File(directory, path.replace('/', File.separatorChar));
jjg@103 54 }
jjg@103 55
jjg@103 56 public int compareTo(RelativePath other) {
jjg@103 57 return path.compareTo(other.path);
jjg@103 58 }
jjg@103 59
jjg@103 60 @Override
jjg@103 61 public boolean equals(Object other) {
jjg@103 62 if (!(other instanceof RelativePath))
jjg@103 63 return false;
jjg@103 64 return path.equals(((RelativePath) other).path);
jjg@103 65 }
jjg@103 66
jjg@103 67 @Override
jjg@103 68 public int hashCode() {
jjg@103 69 return path.hashCode();
jjg@103 70 }
jjg@103 71
jjg@103 72 @Override
jjg@103 73 public String toString() {
jjg@103 74 return "RelPath[" + path + "]";
jjg@103 75 }
jjg@103 76
jjg@103 77 public String getPath() {
jjg@103 78 return path;
jjg@103 79 }
jjg@103 80
jjg@103 81 protected final String path;
jjg@103 82
jjg@103 83 /**
jjg@103 84 * Used to represent a platform-neutral subdirectory within a platform-specific
jjg@103 85 * container, such as a directory or zip file.
jjg@103 86 * Internally, the file separator is always '/', and if the path is not empty,
jjg@103 87 * it always ends in a '/' as well.
jjg@103 88 */
jjg@103 89 public static class RelativeDirectory extends RelativePath {
jjg@103 90
jjg@103 91 static RelativeDirectory forPackage(CharSequence packageName) {
jjg@103 92 return new RelativeDirectory(packageName.toString().replace('.', '/'));
jjg@103 93 }
jjg@103 94
jjg@103 95 /**
jjg@103 96 * @param p must use '/' as an internal separator
jjg@103 97 */
jjg@103 98 public RelativeDirectory(String p) {
jjg@103 99 super(p.length() == 0 || p.endsWith("/") ? p : p + "/");
jjg@103 100 }
jjg@103 101
jjg@103 102 /**
jjg@103 103 * @param p must use '/' as an internal separator
jjg@103 104 */
jjg@103 105 public RelativeDirectory(RelativeDirectory d, String p) {
jjg@103 106 this(d.path + p);
jjg@103 107 }
jjg@103 108
jjg@103 109 @Override
jjg@103 110 public RelativeDirectory dirname() {
jjg@103 111 int l = path.length();
jjg@103 112 if (l == 0)
jjg@103 113 return this;
jjg@103 114 int sep = path.lastIndexOf('/', l - 2);
jjg@103 115 return new RelativeDirectory(path.substring(0, sep + 1));
jjg@103 116 }
jjg@103 117
jjg@103 118 @Override
jjg@103 119 public String basename() {
jjg@103 120 int l = path.length();
jjg@103 121 if (l == 0)
jjg@103 122 return path;
jjg@103 123 int sep = path.lastIndexOf('/', l - 2);
jjg@103 124 return path.substring(sep + 1, l - 1);
jjg@103 125 }
jjg@103 126
jjg@103 127 /**
jjg@103 128 * Return true if this subdirectory "contains" the other path.
jjg@103 129 * A subdirectory path does not contain itself.
jjg@103 130 **/
jjg@103 131 boolean contains(RelativePath other) {
jjg@103 132 return other.path.length() > path.length() && other.path.startsWith(path);
jjg@103 133 }
jjg@103 134
jjg@103 135 @Override
jjg@103 136 public String toString() {
jjg@103 137 return "RelativeDirectory[" + path + "]";
jjg@103 138 }
jjg@103 139 }
jjg@103 140
jjg@103 141 /**
jjg@103 142 * Used to represent a platform-neutral file within a platform-specific
jjg@103 143 * container, such as a directory or zip file.
jjg@103 144 * Internally, the file separator is always '/'. It never ends in '/'.
jjg@103 145 */
jjg@103 146 public static class RelativeFile extends RelativePath {
jjg@103 147 static RelativeFile forClass(CharSequence className, JavaFileObject.Kind kind) {
jjg@103 148 return new RelativeFile(className.toString().replace('.', '/') + kind.extension);
jjg@103 149 }
jjg@103 150
jjg@103 151 public RelativeFile(String p) {
jjg@103 152 super(p);
jjg@103 153 if (p.endsWith("/"))
jjg@103 154 throw new IllegalArgumentException(p);
jjg@103 155 }
jjg@103 156
jjg@103 157 /**
jjg@103 158 * @param p must use '/' as an internal separator
jjg@103 159 */
jjg@103 160 public RelativeFile(RelativeDirectory d, String p) {
jjg@103 161 this(d.path + p);
jjg@103 162 }
jjg@103 163
jjg@103 164 RelativeFile(RelativeDirectory d, RelativePath p) {
jjg@103 165 this(d, p.path);
jjg@103 166 }
jjg@103 167
jjg@103 168 @Override
jjg@103 169 public RelativeDirectory dirname() {
jjg@103 170 int sep = path.lastIndexOf('/');
jjg@103 171 return new RelativeDirectory(path.substring(0, sep + 1));
jjg@103 172 }
jjg@103 173
jjg@103 174 @Override
jjg@103 175 public String basename() {
jjg@103 176 int sep = path.lastIndexOf('/');
jjg@103 177 return path.substring(sep + 1);
jjg@103 178 }
jjg@103 179
jjg@103 180 ZipEntry getZipEntry(ZipFile zip) {
jjg@103 181 return zip.getEntry(path);
jjg@103 182 }
jjg@103 183
jjg@103 184 @Override
jjg@103 185 public String toString() {
jjg@103 186 return "RelativeFile[" + path + "]";
jjg@103 187 }
jjg@103 188
jjg@103 189 }
jjg@103 190
jjg@103 191 }

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