RelativePath.java revision 3155:30e288cb2d22
18871Srgrimes/* 24Srgrimes * Copyright (c) 2008, 2015, Oracle and/or its affiliates. All rights reserved. 34Srgrimes * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 44Srgrimes * 58871Srgrimes * This code is free software; you can redistribute it and/or modify it 64Srgrimes * under the terms of the GNU General Public License version 2 only, as 74Srgrimes * published by the Free Software Foundation. Oracle designates this 84Srgrimes * particular file as subject to the "Classpath" exception as provided 94Srgrimes * by Oracle in the LICENSE file that accompanied this code. 104Srgrimes * 118871Srgrimes * This code is distributed in the hope that it will be useful, but WITHOUT 124Srgrimes * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 134Srgrimes * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 144Srgrimes * version 2 for more details (a copy is included in the LICENSE file that 158871Srgrimes * accompanied this code). 164Srgrimes * 178871Srgrimes * You should have received a copy of the GNU General Public License version 184Srgrimes * 2 along with this work; if not, write to the Free Software Foundation, 194Srgrimes * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 204Srgrimes * 214Srgrimes * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 228871Srgrimes * or visit www.oracle.com if you need additional information or have any 234Srgrimes * questions. 244Srgrimes */ 254Srgrimes 264Srgrimespackage com.sun.tools.javac.file; 2737415Scharnier 2837415Scharnierimport java.io.File; 2940946Sjkoshyimport java.nio.file.FileSystem; 3037415Scharnierimport java.nio.file.FileSystems; 3137415Scharnierimport java.nio.file.InvalidPathException; 324Srgrimesimport java.nio.file.Path; 3337415Scharnierimport java.nio.file.Paths; 3437415Scharnierimport java.util.zip.ZipEntry; 3537415Scharnierimport java.util.zip.ZipFile; 3637415Scharnier 3737415Scharnierimport javax.tools.JavaFileObject; 384Srgrimes 3937415Scharnier/** 4016561Salex * Used to represent a platform-neutral path within a platform-specific 4116561Salex * container, such as a directory or zip file. 424Srgrimes * Internally, the file separator is always '/'. 434Srgrimes * 444Srgrimes * <p><b>This is NOT part of any supported API. 454Srgrimes * If you write code that depends on this, you do so at your own risk. 464Srgrimes * This code and its internal interfaces are subject to change or 474Srgrimes * deletion without notice.</b> 484Srgrimes */ 494Srgrimespublic abstract class RelativePath implements Comparable<RelativePath> { 504Srgrimes /** 514Srgrimes * @param p must use '/' as an internal separator 524Srgrimes */ 534Srgrimes protected RelativePath(String p) { 544Srgrimes path = p; 554Srgrimes } 564Srgrimes 574Srgrimes public abstract RelativeDirectory dirname(); 584Srgrimes 594Srgrimes public abstract String basename(); 604Srgrimes 614Srgrimes public Path resolveAgainst(Path directory) throws /*unchecked*/ InvalidPathException { 624Srgrimes if (directory == null) { 6320061Ssos String sep = FileSystems.getDefault().getSeparator(); 6420061Ssos return Paths.get(path.replace("/", sep)); 6520061Ssos } else { 664Srgrimes String sep = directory.getFileSystem().getSeparator(); 6710514Sjoerg return directory.resolve(path.replace("/", sep)); 6810514Sjoerg } 6910514Sjoerg } 7010514Sjoerg 7110514Sjoerg public Path resolveAgainst(FileSystem fs) throws /*unchecked*/ InvalidPathException { 7210514Sjoerg String sep = fs.getSeparator(); 734Srgrimes Path root = fs.getRootDirectories().iterator().next(); 744Srgrimes return root.resolve(path.replace("/", sep)); 754Srgrimes } 764Srgrimes 774Srgrimes @Override 784Srgrimes public int compareTo(RelativePath other) { 7937415Scharnier return path.compareTo(other.path); 804Srgrimes } 814Srgrimes 824Srgrimes @Override 8320061Ssos public boolean equals(Object other) { 8420061Ssos if (!(other instanceof RelativePath)) 854Srgrimes return false; 864Srgrimes return path.equals(((RelativePath) other).path); 874Srgrimes } 884Srgrimes 894Srgrimes @Override 904Srgrimes public int hashCode() { 914Srgrimes return path.hashCode(); 924Srgrimes } 934Srgrimes 944Srgrimes @Override 954Srgrimes public String toString() { 964Srgrimes return "RelPath[" + path + "]"; 974Srgrimes } 984Srgrimes 994Srgrimes public String getPath() { 1004Srgrimes return path; 10119459Sjkh } 10219459Sjkh 10319459Sjkh protected final String path; 10419459Sjkh 10519459Sjkh /** 10619459Sjkh * Used to represent a platform-neutral subdirectory within a platform-specific 10719459Sjkh * container, such as a directory or zip file. 10819459Sjkh * Internally, the file separator is always '/', and if the path is not empty, 10919459Sjkh * it always ends in a '/' as well. 11019459Sjkh */ 11119459Sjkh public static class RelativeDirectory extends RelativePath { 11219459Sjkh 11319459Sjkh static RelativeDirectory forPackage(CharSequence packageName) { 11419459Sjkh return new RelativeDirectory(packageName.toString().replace('.', '/')); 11519459Sjkh } 11619459Sjkh 11719459Sjkh /** 11819459Sjkh * @param p must use '/' as an internal separator 11919459Sjkh */ 1204Srgrimes public RelativeDirectory(String p) { 1214Srgrimes super(p.length() == 0 || p.endsWith("/") ? p : p + "/"); 1224Srgrimes } 12319459Sjkh 12419459Sjkh /** 12519459Sjkh * @param p must use '/' as an internal separator 1264Srgrimes */ 1274Srgrimes public RelativeDirectory(RelativeDirectory d, String p) { 1288871Srgrimes this(d.path + p); 1298871Srgrimes } 1308871Srgrimes 1318871Srgrimes @Override 1328871Srgrimes public RelativeDirectory dirname() { 1338871Srgrimes int l = path.length(); 1348871Srgrimes if (l == 0) 1358871Srgrimes return this; 1364Srgrimes int sep = path.lastIndexOf('/', l - 2); 1374Srgrimes return new RelativeDirectory(path.substring(0, sep + 1)); 1384Srgrimes } 1398871Srgrimes 1404Srgrimes @Override 1414Srgrimes public String basename() { 1424Srgrimes int l = path.length(); 1434Srgrimes if (l == 0) 1448871Srgrimes return path; 1454Srgrimes int sep = path.lastIndexOf('/', l - 2); 1468871Srgrimes return path.substring(sep + 1, l - 1); 1478871Srgrimes } 1488871Srgrimes 1498871Srgrimes /** 1508871Srgrimes * Return true if this subdirectory "contains" the other path. 1518871Srgrimes * A subdirectory path does not contain itself. 1528871Srgrimes **/ 1538871Srgrimes boolean contains(RelativePath other) { 1548871Srgrimes return other.path.length() > path.length() && other.path.startsWith(path); 1558871Srgrimes } 1568871Srgrimes 1578871Srgrimes @Override 1588871Srgrimes public String toString() { 1594Srgrimes return "RelativeDirectory[" + path + "]"; 1604Srgrimes } 1614Srgrimes } 1624Srgrimes 1634Srgrimes /** 1644Srgrimes * Used to represent a platform-neutral file within a platform-specific 1654Srgrimes * container, such as a directory or zip file. 1664Srgrimes * Internally, the file separator is always '/'. It never ends in '/'. 1678871Srgrimes */ 1688871Srgrimes public static class RelativeFile extends RelativePath { 1698871Srgrimes static RelativeFile forClass(CharSequence className, JavaFileObject.Kind kind) { 1708871Srgrimes return new RelativeFile(className.toString().replace('.', '/') + kind.extension); 17134582Sache } 1728871Srgrimes 1738871Srgrimes public RelativeFile(String p) { 17434952Sobrien super(p); 1758871Srgrimes if (p.endsWith("/")) 1768871Srgrimes throw new IllegalArgumentException(p); 1778871Srgrimes } 17834582Sache 17934582Sache /** 18034582Sache * @param p must use '/' as an internal separator 18134582Sache */ 1828871Srgrimes public RelativeFile(RelativeDirectory d, String p) { 1838871Srgrimes this(d.path + p); 1848871Srgrimes } 1858871Srgrimes 1868871Srgrimes RelativeFile(RelativeDirectory d, RelativePath p) { 1878871Srgrimes this(d, p.path); 1888871Srgrimes } 1898871Srgrimes 1908871Srgrimes @Override 1918871Srgrimes public RelativeDirectory dirname() { 1928871Srgrimes int sep = path.lastIndexOf('/'); 1938871Srgrimes return new RelativeDirectory(path.substring(0, sep + 1)); 1948871Srgrimes } 19539377Sobrien 1968871Srgrimes @Override 1978871Srgrimes public String basename() { 1988871Srgrimes int sep = path.lastIndexOf('/'); 19940946Sjkoshy return path.substring(sep + 1); 2008871Srgrimes } 20125378Simp 2027902Sgpalmer ZipEntry getZipEntry(ZipFile zip) { 2038871Srgrimes return zip.getEntry(path); 2048871Srgrimes } 2058871Srgrimes 2068871Srgrimes @Override 2078871Srgrimes public String toString() { 2088871Srgrimes return "RelativeFile[" + path + "]"; 2098871Srgrimes } 2108871Srgrimes 2118871Srgrimes } 2128871Srgrimes 2134Srgrimes} 2144Srgrimes