| /* |
| * Copyright (c) 2005, 2014, 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.IOException; |
| import java.util.Set; |
| import javax.tools.JavaFileObject; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.File; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.io.Writer; |
| import java.net.URI; |
| import java.nio.ByteBuffer; |
| import java.nio.CharBuffer; |
| import java.nio.charset.CharsetDecoder; |
| |
| import com.sun.tools.javac.file.JavacFileManager.Archive; |
| import com.sun.tools.javac.file.RelativePath.RelativeDirectory; |
| import com.sun.tools.javac.file.RelativePath.RelativeFile; |
| import com.sun.tools.javac.util.Assert; |
| import com.sun.tools.javac.util.List; |
| |
| /** |
| * <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 class ZipFileIndexArchive implements Archive { |
| |
| private final ZipFileIndex zfIndex; |
| private JavacFileManager fileManager; |
| |
| public ZipFileIndexArchive(JavacFileManager fileManager, ZipFileIndex zdir) throws IOException { |
| super(); |
| this.fileManager = fileManager; |
| this.zfIndex = zdir; |
| } |
| |
| public boolean contains(RelativePath name) { |
| return zfIndex.contains(name); |
| } |
| |
| public List<String> getFiles(RelativeDirectory subdirectory) { |
| return zfIndex.getFiles(subdirectory); |
| } |
| |
| public JavaFileObject getFileObject(RelativeDirectory subdirectory, String file) { |
| RelativeFile fullZipFileName = new RelativeFile(subdirectory, file); |
| ZipFileIndex.Entry entry = zfIndex.getZipIndexEntry(fullZipFileName); |
| JavaFileObject ret = new ZipFileIndexFileObject(fileManager, zfIndex, entry, zfIndex.getZipFile()); |
| return ret; |
| } |
| |
| public Set<RelativeDirectory> getSubdirectories() { |
| return zfIndex.getAllDirectories(); |
| } |
| |
| public void close() throws IOException { |
| zfIndex.close(); |
| } |
| |
| @Override |
| public String toString() { |
| return "ZipFileIndexArchive[" + zfIndex + "]"; |
| } |
| |
| /** |
| * A subclass of JavaFileObject representing zip entries using the com.sun.tools.javac.file.ZipFileIndex implementation. |
| */ |
| public static class ZipFileIndexFileObject extends BaseFileObject { |
| |
| /** The entry's name. |
| */ |
| private String name; |
| |
| /** The zipfile containing the entry. |
| */ |
| ZipFileIndex zfIndex; |
| |
| /** The underlying zip entry object. |
| */ |
| ZipFileIndex.Entry entry; |
| |
| /** The name of the zip file where this entry resides. |
| */ |
| File zipName; |
| |
| |
| ZipFileIndexFileObject(JavacFileManager fileManager, ZipFileIndex zfIndex, ZipFileIndex.Entry entry, File zipFileName) { |
| super(fileManager); |
| this.name = entry.getFileName(); |
| this.zfIndex = zfIndex; |
| this.entry = entry; |
| this.zipName = zipFileName; |
| } |
| |
| @Override |
| public URI toUri() { |
| return createJarUri(zipName, getPrefixedEntryName()); |
| } |
| |
| @Override |
| public String getName() { |
| return zipName + "(" + getPrefixedEntryName() + ")"; |
| } |
| |
| @Override |
| public String getShortName() { |
| return zipName.getName() + "(" + entry.getName() + ")"; |
| } |
| |
| @Override |
| public JavaFileObject.Kind getKind() { |
| return getKind(entry.getName()); |
| } |
| |
| @Override |
| public InputStream openInputStream() throws IOException { |
| Assert.checkNonNull(entry); // see constructor |
| return new ByteArrayInputStream(zfIndex.read(entry)); |
| } |
| |
| @Override |
| public OutputStream openOutputStream() throws IOException { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public CharBuffer getCharContent(boolean ignoreEncodingErrors) throws IOException { |
| CharBuffer cb = fileManager.getCachedContent(this); |
| if (cb == null) { |
| try (InputStream in = new ByteArrayInputStream(zfIndex.read(entry))) { |
| ByteBuffer bb = fileManager.makeByteBuffer(in); |
| JavaFileObject prev = fileManager.log.useSource(this); |
| try { |
| cb = fileManager.decode(bb, ignoreEncodingErrors); |
| } finally { |
| fileManager.log.useSource(prev); |
| } |
| fileManager.recycleByteBuffer(bb); // save for next time |
| if (!ignoreEncodingErrors) |
| fileManager.cache(this, cb); |
| } |
| } |
| return cb; |
| } |
| |
| @Override |
| public Writer openWriter() throws IOException { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public long getLastModified() { |
| return entry.getLastModified(); |
| } |
| |
| @Override |
| public boolean delete() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| protected CharsetDecoder getDecoder(boolean ignoreEncodingErrors) { |
| return fileManager.getDecoder(fileManager.getEncodingName(), ignoreEncodingErrors); |
| } |
| |
| @Override |
| protected String inferBinaryName(Iterable<? extends File> path) { |
| String entryName = entry.getName(); |
| if (zfIndex.symbolFilePrefix != null) { |
| String prefix = zfIndex.symbolFilePrefix.path; |
| if (entryName.startsWith(prefix)) |
| entryName = entryName.substring(prefix.length()); |
| } |
| return removeExtension(entryName).replace('/', '.'); |
| } |
| |
| @Override |
| public boolean isNameCompatible(String cn, JavaFileObject.Kind k) { |
| cn.getClass(); // null check |
| if (k == Kind.OTHER && getKind() != k) |
| return false; |
| return name.equals(cn + k.extension); |
| } |
| |
| /** |
| * Check if two file objects are equal. |
| * Two ZipFileIndexFileObjects are equal if the absolute paths of the underlying |
| * zip files are equal and if the paths within those zip files are equal. |
| */ |
| @Override |
| public boolean equals(Object other) { |
| if (this == other) |
| return true; |
| |
| if (!(other instanceof ZipFileIndexFileObject)) |
| return false; |
| |
| ZipFileIndexFileObject o = (ZipFileIndexFileObject) other; |
| return zfIndex.getAbsoluteFile().equals(o.zfIndex.getAbsoluteFile()) |
| && name.equals(o.name); |
| } |
| |
| @Override |
| public int hashCode() { |
| return zfIndex.getAbsoluteFile().hashCode() + name.hashCode(); |
| } |
| |
| private String getPrefixedEntryName() { |
| if (zfIndex.symbolFilePrefix != null) |
| return zfIndex.symbolFilePrefix.path + entry.getName(); |
| else |
| return entry.getName(); |
| } |
| } |
| |
| } |