| /* |
| * Copyright (c) 2005, 2009, 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.io.IOException; |
| import java.io.InputStreamReader; |
| import java.io.Reader; |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| import java.nio.charset.CharsetDecoder; |
| import javax.lang.model.element.Modifier; |
| import javax.lang.model.element.NestingKind; |
| import javax.tools.FileObject; |
| import javax.tools.JavaFileObject; |
| |
| import static javax.tools.JavaFileObject.Kind.*; |
| |
| import com.sun.tools.javac.util.BaseFileManager; |
| |
| /** |
| * <p><b>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.</b> |
| */ |
| public abstract class BaseFileObject implements JavaFileObject { |
| protected BaseFileObject(JavacFileManager fileManager) { |
| this.fileManager = fileManager; |
| } |
| |
| /** Return a short name for the object, such as for use in raw diagnostics |
| */ |
| public abstract String getShortName(); |
| |
| @Override |
| public String toString() { |
| return getClass().getSimpleName() + "[" + getName() + "]"; |
| } |
| |
| public NestingKind getNestingKind() { return null; } |
| |
| public Modifier getAccessLevel() { return null; } |
| |
| public Reader openReader(boolean ignoreEncodingErrors) throws IOException { |
| return new InputStreamReader(openInputStream(), getDecoder(ignoreEncodingErrors)); |
| } |
| |
| protected CharsetDecoder getDecoder(boolean ignoreEncodingErrors) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| protected abstract String inferBinaryName(Iterable<? extends File> path); |
| |
| protected static JavaFileObject.Kind getKind(String filename) { |
| return BaseFileManager.getKind(filename); |
| } |
| |
| protected static String removeExtension(String fileName) { |
| int lastDot = fileName.lastIndexOf("."); |
| return (lastDot == -1 ? fileName : fileName.substring(0, lastDot)); |
| } |
| |
| protected static URI createJarUri(File jarFile, String entryName) { |
| URI jarURI = jarFile.toURI().normalize(); |
| String separator = entryName.startsWith("/") ? "!" : "!/"; |
| try { |
| // The jar URI convention appears to be not to re-encode the jarURI |
| return new URI("jar:" + jarURI + separator + entryName); |
| } catch (URISyntaxException e) { |
| throw new CannotCreateUriError(jarURI + separator + entryName, e); |
| } |
| } |
| |
| /** Used when URLSyntaxException is thrown unexpectedly during |
| * implementations of (Base)FileObject.toURI(). */ |
| protected static class CannotCreateUriError extends Error { |
| private static final long serialVersionUID = 9101708840997613546L; |
| public CannotCreateUriError(String value, Throwable cause) { |
| super(value, cause); |
| } |
| } |
| |
| /** Return the last component of a presumed hierarchical URI. |
| * From the scheme specific part of the URI, it returns the substring |
| * after the last "/" if any, or everything if no "/" is found. |
| */ |
| public static String getSimpleName(FileObject fo) { |
| URI uri = fo.toUri(); |
| String s = uri.getSchemeSpecificPart(); |
| return s.substring(s.lastIndexOf("/") + 1); // safe when / not found |
| |
| } |
| |
| // force subtypes to define equals |
| @Override |
| public abstract boolean equals(Object other); |
| |
| // force subtypes to define hashCode |
| @Override |
| public abstract int hashCode(); |
| |
| /** The file manager that created this JavaFileObject. */ |
| protected final JavacFileManager fileManager; |
| } |