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/*
* Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.tools.javac.file;
import java.io.File;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import javax.tools.JavaFileObject;
/**
* Used to represent a platform-neutral path within a platform-specific
* container, such as a directory or zip file.
* Internally, the file separator is always '/'.
*
* This is NOT part of any supported API.
* If you write code that depends on this, you do so at your own risk.
* This code and its internal interfaces are subject to change or
* deletion without notice.
*/
public abstract class RelativePath implements Comparable {
/**
* @param p must use '/' as an internal separator
*/
protected RelativePath(String p) {
path = p;
}
public abstract RelativeDirectory dirname();
public abstract String basename();
public File getFile(File directory) {
if (path.length() == 0)
return directory;
return new File(directory, path.replace('/', File.separatorChar));
}
public int compareTo(RelativePath other) {
return path.compareTo(other.path);
}
@Override
public boolean equals(Object other) {
if (!(other instanceof RelativePath))
return false;
return path.equals(((RelativePath) other).path);
}
@Override
public int hashCode() {
return path.hashCode();
}
@Override
public String toString() {
return "RelPath[" + path + "]";
}
public String getPath() {
return path;
}
protected final String path;
/**
* Used to represent a platform-neutral subdirectory within a platform-specific
* container, such as a directory or zip file.
* Internally, the file separator is always '/', and if the path is not empty,
* it always ends in a '/' as well.
*/
public static class RelativeDirectory extends RelativePath {
static RelativeDirectory forPackage(CharSequence packageName) {
return new RelativeDirectory(packageName.toString().replace('.', '/'));
}
/**
* @param p must use '/' as an internal separator
*/
public RelativeDirectory(String p) {
super(p.length() == 0 || p.endsWith("/") ? p : p + "/");
}
/**
* @param p must use '/' as an internal separator
*/
public RelativeDirectory(RelativeDirectory d, String p) {
this(d.path + p);
}
@Override
public RelativeDirectory dirname() {
int l = path.length();
if (l == 0)
return this;
int sep = path.lastIndexOf('/', l - 2);
return new RelativeDirectory(path.substring(0, sep + 1));
}
@Override
public String basename() {
int l = path.length();
if (l == 0)
return path;
int sep = path.lastIndexOf('/', l - 2);
return path.substring(sep + 1, l - 1);
}
/**
* Return true if this subdirectory "contains" the other path.
* A subdirectory path does not contain itself.
**/
boolean contains(RelativePath other) {
return other.path.length() > path.length() && other.path.startsWith(path);
}
@Override
public String toString() {
return "RelativeDirectory[" + path + "]";
}
}
/**
* Used to represent a platform-neutral file within a platform-specific
* container, such as a directory or zip file.
* Internally, the file separator is always '/'. It never ends in '/'.
*/
public static class RelativeFile extends RelativePath {
static RelativeFile forClass(CharSequence className, JavaFileObject.Kind kind) {
return new RelativeFile(className.toString().replace('.', '/') + kind.extension);
}
public RelativeFile(String p) {
super(p);
if (p.endsWith("/"))
throw new IllegalArgumentException(p);
}
/**
* @param p must use '/' as an internal separator
*/
public RelativeFile(RelativeDirectory d, String p) {
this(d.path + p);
}
RelativeFile(RelativeDirectory d, RelativePath p) {
this(d, p.path);
}
@Override
public RelativeDirectory dirname() {
int sep = path.lastIndexOf('/');
return new RelativeDirectory(path.substring(0, sep + 1));
}
@Override
public String basename() {
int sep = path.lastIndexOf('/');
return path.substring(sep + 1);
}
ZipEntry getZipEntry(ZipFile zip) {
return zip.getEntry(path);
}
@Override
public String toString() {
return "RelativeFile[" + path + "]";
}
}
}