author | jjg |
Wed, 23 Sep 2009 18:48:13 -0700 | |
changeset 3995 | 73af8b6fb8bc |
parent 3782 | ae62279eeb46 |
child 3998 | c66be272f350 |
permissions | -rw-r--r-- |
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/* |
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* Copyright 2005-2008 Sun Microsystems, Inc. All Rights Reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Sun designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Sun in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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* CA 95054 USA or visit www.sun.com if you need additional information or |
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* have any questions. |
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*/ |
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package com.sun.tools.javac.file; |
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import java.io.File; |
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import java.io.IOException; |
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import java.io.InputStreamReader; |
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import java.io.Reader; |
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import java.net.URI; |
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import java.net.URISyntaxException; |
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import java.nio.charset.CharsetDecoder; |
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import javax.lang.model.element.Modifier; |
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import javax.lang.model.element.NestingKind; |
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import javax.tools.FileObject; |
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import javax.tools.JavaFileObject; |
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import static javax.tools.JavaFileObject.Kind.*; |
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/** |
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* <p><b>This is NOT part of any API supported by Sun Microsystems. |
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* If you write code that depends on this, you do so at your own risk. |
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* This code and its internal interfaces are subject to change or |
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* deletion without notice.</b> |
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*/ |
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public abstract class BaseFileObject implements JavaFileObject { |
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protected BaseFileObject(JavacFileManager fileManager) { |
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this.fileManager = fileManager; |
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} |
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/** Return a short name for the object, such as for use in raw diagnostics |
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*/ |
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public abstract String getShortName(); |
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@Override |
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public String toString() { |
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return getClass().getSimpleName() + "[" + getName() + "]"; |
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} |
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public NestingKind getNestingKind() { return null; } |
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public Modifier getAccessLevel() { return null; } |
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public Reader openReader(boolean ignoreEncodingErrors) throws IOException { |
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return new InputStreamReader(openInputStream(), getDecoder(ignoreEncodingErrors)); |
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} |
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protected CharsetDecoder getDecoder(boolean ignoreEncodingErrors) { |
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throw new UnsupportedOperationException(); |
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} |
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protected abstract String inferBinaryName(Iterable<? extends File> path); |
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protected static JavaFileObject.Kind getKind(String filename) { |
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if (filename.endsWith(CLASS.extension)) |
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return CLASS; |
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else if (filename.endsWith(SOURCE.extension)) |
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return SOURCE; |
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else if (filename.endsWith(HTML.extension)) |
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return HTML; |
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else |
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return OTHER; |
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} |
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protected static String removeExtension(String fileName) { |
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int lastDot = fileName.lastIndexOf("."); |
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return (lastDot == -1 ? fileName : fileName.substring(0, lastDot)); |
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} |
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protected static URI createJarUri(File jarFile, String entryName) { |
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URI jarURI = jarFile.toURI().normalize(); |
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String separator = entryName.startsWith("/") ? "!" : "!/"; |
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try { |
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// The jar URI convention appears to be not to re-encode the jarURI |
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return new URI("jar:" + jarURI + separator + entryName); |
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} catch (URISyntaxException e) { |
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throw new CannotCreateUriError(jarURI + separator + entryName, e); |
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} |
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} |
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/** Used when URLSyntaxException is thrown unexpectedly during |
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* implementations of (Base)FileObject.toURI(). */ |
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protected static class CannotCreateUriError extends Error { |
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private static final long serialVersionUID = 9101708840997613546L; |
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public CannotCreateUriError(String value, Throwable cause) { |
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super(value, cause); |
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} |
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} |
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/** Return the last component of a presumed hierarchical URI. |
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* From the scheme specific part of the URI, it returns the substring |
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* after the last "/" if any, or everything if no "/" is found. |
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*/ |
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public static String getSimpleName(FileObject fo) { |
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URI uri = fo.toUri(); |
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String s = uri.getSchemeSpecificPart(); |
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return s.substring(s.lastIndexOf("/") + 1); // safe when / not found |
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} |
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/** The file manager that created this JavaFileObject. */ |
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protected final JavacFileManager fileManager; |
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} |