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src/share/classes/com/sun/tools/javac/file/RelativePath.java@2eb010b6cb22 (annotated)

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

Thu, 31 Aug 2017 15:17:03 +0800

author

aoqi

date

Thu, 31 Aug 2017 15:17:03 +0800

changeset 2525

2eb010b6cb22

parent 581

f2fdd52e4e87

parent 0

959103a6100f

permissions

-rw-r--r--

merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation. Oracle designates this
aoqi@0	8	* particular file as subject to the "Classpath" exception as provided
aoqi@0	9	* by Oracle in the LICENSE file that accompanied this code.
aoqi@0	10	*
aoqi@0	11	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	12	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	13	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	14	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	15	* accompanied this code).
aoqi@0	16	*
aoqi@0	17	* You should have received a copy of the GNU General Public License version
aoqi@0	18	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	19	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	20	*
aoqi@0	21	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	22	* or visit www.oracle.com if you need additional information or have any
aoqi@0	23	* questions.
aoqi@0	24	*/
aoqi@0	25
aoqi@0	26	package com.sun.tools.javac.file;
aoqi@0	27
aoqi@0	28	import java.io.File;
aoqi@0	29	import java.util.zip.ZipEntry;
aoqi@0	30	import java.util.zip.ZipFile;
aoqi@0	31	import javax.tools.JavaFileObject;
aoqi@0	32
aoqi@0	33	/**
aoqi@0	34	* Used to represent a platform-neutral path within a platform-specific
aoqi@0	35	* container, such as a directory or zip file.
aoqi@0	36	* Internally, the file separator is always '/'.
aoqi@0	37	*
aoqi@0	38	* <p><b>This is NOT part of any supported API.
aoqi@0	39	* If you write code that depends on this, you do so at your own risk.
aoqi@0	40	* This code and its internal interfaces are subject to change or
aoqi@0	41	* deletion without notice.</b>
aoqi@0	42	*/
aoqi@0	43	public abstract class RelativePath implements Comparable<RelativePath> {
aoqi@0	44	/**
aoqi@0	45	* @param p must use '/' as an internal separator
aoqi@0	46	*/
aoqi@0	47	protected RelativePath(String p) {
aoqi@0	48	path = p;
aoqi@0	49	}
aoqi@0	50
aoqi@0	51	public abstract RelativeDirectory dirname();
aoqi@0	52
aoqi@0	53	public abstract String basename();
aoqi@0	54
aoqi@0	55	public File getFile(File directory) {
aoqi@0	56	if (path.length() == 0)
aoqi@0	57	return directory;
aoqi@0	58	return new File(directory, path.replace('/', File.separatorChar));
aoqi@0	59	}
aoqi@0	60
aoqi@0	61	public int compareTo(RelativePath other) {
aoqi@0	62	return path.compareTo(other.path);
aoqi@0	63	}
aoqi@0	64
aoqi@0	65	@Override
aoqi@0	66	public boolean equals(Object other) {
aoqi@0	67	if (!(other instanceof RelativePath))
aoqi@0	68	return false;
aoqi@0	69	return path.equals(((RelativePath) other).path);
aoqi@0	70	}
aoqi@0	71
aoqi@0	72	@Override
aoqi@0	73	public int hashCode() {
aoqi@0	74	return path.hashCode();
aoqi@0	75	}
aoqi@0	76
aoqi@0	77	@Override
aoqi@0	78	public String toString() {
aoqi@0	79	return "RelPath[" + path + "]";
aoqi@0	80	}
aoqi@0	81
aoqi@0	82	public String getPath() {
aoqi@0	83	return path;
aoqi@0	84	}
aoqi@0	85
aoqi@0	86	protected final String path;
aoqi@0	87
aoqi@0	88	/**
aoqi@0	89	* Used to represent a platform-neutral subdirectory within a platform-specific
aoqi@0	90	* container, such as a directory or zip file.
aoqi@0	91	* Internally, the file separator is always '/', and if the path is not empty,
aoqi@0	92	* it always ends in a '/' as well.
aoqi@0	93	*/
aoqi@0	94	public static class RelativeDirectory extends RelativePath {
aoqi@0	95
aoqi@0	96	static RelativeDirectory forPackage(CharSequence packageName) {
aoqi@0	97	return new RelativeDirectory(packageName.toString().replace('.', '/'));
aoqi@0	98	}
aoqi@0	99
aoqi@0	100	/**
aoqi@0	101	* @param p must use '/' as an internal separator
aoqi@0	102	*/
aoqi@0	103	public RelativeDirectory(String p) {
aoqi@0	104	super(p.length() == 0 || p.endsWith("/") ? p : p + "/");
aoqi@0	105	}
aoqi@0	106
aoqi@0	107	/**
aoqi@0	108	* @param p must use '/' as an internal separator
aoqi@0	109	*/
aoqi@0	110	public RelativeDirectory(RelativeDirectory d, String p) {
aoqi@0	111	this(d.path + p);
aoqi@0	112	}
aoqi@0	113
aoqi@0	114	@Override
aoqi@0	115	public RelativeDirectory dirname() {
aoqi@0	116	int l = path.length();
aoqi@0	117	if (l == 0)
aoqi@0	118	return this;
aoqi@0	119	int sep = path.lastIndexOf('/', l - 2);
aoqi@0	120	return new RelativeDirectory(path.substring(0, sep + 1));
aoqi@0	121	}
aoqi@0	122
aoqi@0	123	@Override
aoqi@0	124	public String basename() {
aoqi@0	125	int l = path.length();
aoqi@0	126	if (l == 0)
aoqi@0	127	return path;
aoqi@0	128	int sep = path.lastIndexOf('/', l - 2);
aoqi@0	129	return path.substring(sep + 1, l - 1);
aoqi@0	130	}
aoqi@0	131
aoqi@0	132	/**
aoqi@0	133	* Return true if this subdirectory "contains" the other path.
aoqi@0	134	* A subdirectory path does not contain itself.
aoqi@0	135	**/
aoqi@0	136	boolean contains(RelativePath other) {
aoqi@0	137	return other.path.length() > path.length() && other.path.startsWith(path);
aoqi@0	138	}
aoqi@0	139
aoqi@0	140	@Override
aoqi@0	141	public String toString() {
aoqi@0	142	return "RelativeDirectory[" + path + "]";
aoqi@0	143	}
aoqi@0	144	}
aoqi@0	145
aoqi@0	146	/**
aoqi@0	147	* Used to represent a platform-neutral file within a platform-specific
aoqi@0	148	* container, such as a directory or zip file.
aoqi@0	149	* Internally, the file separator is always '/'. It never ends in '/'.
aoqi@0	150	*/
aoqi@0	151	public static class RelativeFile extends RelativePath {
aoqi@0	152	static RelativeFile forClass(CharSequence className, JavaFileObject.Kind kind) {
aoqi@0	153	return new RelativeFile(className.toString().replace('.', '/') + kind.extension);
aoqi@0	154	}
aoqi@0	155
aoqi@0	156	public RelativeFile(String p) {
aoqi@0	157	super(p);
aoqi@0	158	if (p.endsWith("/"))
aoqi@0	159	throw new IllegalArgumentException(p);
aoqi@0	160	}
aoqi@0	161
aoqi@0	162	/**
aoqi@0	163	* @param p must use '/' as an internal separator
aoqi@0	164	*/
aoqi@0	165	public RelativeFile(RelativeDirectory d, String p) {
aoqi@0	166	this(d.path + p);
aoqi@0	167	}
aoqi@0	168
aoqi@0	169	RelativeFile(RelativeDirectory d, RelativePath p) {
aoqi@0	170	this(d, p.path);
aoqi@0	171	}
aoqi@0	172
aoqi@0	173	@Override
aoqi@0	174	public RelativeDirectory dirname() {
aoqi@0	175	int sep = path.lastIndexOf('/');
aoqi@0	176	return new RelativeDirectory(path.substring(0, sep + 1));
aoqi@0	177	}
aoqi@0	178
aoqi@0	179	@Override
aoqi@0	180	public String basename() {
aoqi@0	181	int sep = path.lastIndexOf('/');
aoqi@0	182	return path.substring(sep + 1);
aoqi@0	183	}
aoqi@0	184
aoqi@0	185	ZipEntry getZipEntry(ZipFile zip) {
aoqi@0	186	return zip.getEntry(path);
aoqi@0	187	}
aoqi@0	188
aoqi@0	189	@Override
aoqi@0	190	public String toString() {
aoqi@0	191	return "RelativeFile[" + path + "]";
aoqi@0	192	}
aoqi@0	193
aoqi@0	194	}
aoqi@0	195
aoqi@0	196	}