| /* |
| * 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.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 java.util.Enumeration; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.zip.ZipEntry; |
| import java.util.zip.ZipFile; |
| |
| import javax.tools.JavaFileObject; |
| |
| 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.List; |
| import java.lang.ref.Reference; |
| import java.lang.ref.SoftReference; |
| |
| /** |
| * <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 ZipArchive implements Archive { |
| |
| public ZipArchive(JavacFileManager fm, ZipFile zfile) throws IOException { |
| this(fm, zfile, true); |
| } |
| |
| protected ZipArchive(JavacFileManager fm, ZipFile zfile, boolean initMap) throws IOException { |
| this.fileManager = fm; |
| this.zfile = zfile; |
| this.map = new HashMap<RelativeDirectory,List<String>>(); |
| if (initMap) |
| initMap(); |
| } |
| |
| protected void initMap() throws IOException { |
| for (Enumeration<? extends ZipEntry> e = zfile.entries(); e.hasMoreElements(); ) { |
| ZipEntry entry; |
| try { |
| entry = e.nextElement(); |
| } catch (InternalError ex) { |
| IOException io = new IOException(); |
| io.initCause(ex); // convenience constructors added in Mustang :-( |
| throw io; |
| } |
| addZipEntry(entry); |
| } |
| } |
| |
| void addZipEntry(ZipEntry entry) { |
| String name = entry.getName(); |
| int i = name.lastIndexOf('/'); |
| RelativeDirectory dirname = new RelativeDirectory(name.substring(0, i+1)); |
| String basename = name.substring(i+1); |
| if (basename.length() == 0) |
| return; |
| List<String> list = map.get(dirname); |
| if (list == null) |
| list = List.nil(); |
| list = list.prepend(basename); |
| map.put(dirname, list); |
| } |
| |
| public boolean contains(RelativePath name) { |
| RelativeDirectory dirname = name.dirname(); |
| String basename = name.basename(); |
| if (basename.length() == 0) |
| return false; |
| List<String> list = map.get(dirname); |
| return (list != null && list.contains(basename)); |
| } |
| |
| public List<String> getFiles(RelativeDirectory subdirectory) { |
| return map.get(subdirectory); |
| } |
| |
| public JavaFileObject getFileObject(RelativeDirectory subdirectory, String file) { |
| ZipEntry ze = new RelativeFile(subdirectory, file).getZipEntry(zfile); |
| return new ZipFileObject(this, file, ze); |
| } |
| |
| public Set<RelativeDirectory> getSubdirectories() { |
| return map.keySet(); |
| } |
| |
| public void close() throws IOException { |
| zfile.close(); |
| } |
| |
| @Override |
| public String toString() { |
| return "ZipArchive[" + zfile.getName() + "]"; |
| } |
| |
| private File getAbsoluteFile() { |
| File absFile = (absFileRef == null ? null : absFileRef.get()); |
| if (absFile == null) { |
| absFile = new File(zfile.getName()).getAbsoluteFile(); |
| absFileRef = new SoftReference<File>(absFile); |
| } |
| return absFile; |
| } |
| |
| /** |
| * The file manager that created this archive. |
| */ |
| protected JavacFileManager fileManager; |
| /** |
| * The index for the contents of this archive. |
| */ |
| protected final Map<RelativeDirectory,List<String>> map; |
| /** |
| * The zip file for the archive. |
| */ |
| protected final ZipFile zfile; |
| /** |
| * A reference to the absolute filename for the zip file for the archive. |
| */ |
| protected Reference<File> absFileRef; |
| |
| /** |
| * A subclass of JavaFileObject representing zip entries. |
| */ |
| public static class ZipFileObject extends BaseFileObject { |
| |
| private String name; |
| ZipArchive zarch; |
| ZipEntry entry; |
| |
| protected ZipFileObject(ZipArchive zarch, String name, ZipEntry entry) { |
| super(zarch.fileManager); |
| this.zarch = zarch; |
| this.name = name; |
| this.entry = entry; |
| } |
| |
| public URI toUri() { |
| File zipFile = new File(zarch.zfile.getName()); |
| return createJarUri(zipFile, entry.getName()); |
| } |
| |
| @Override |
| public String getName() { |
| return zarch.zfile.getName() + "(" + entry.getName() + ")"; |
| } |
| |
| @Override |
| public String getShortName() { |
| return new File(zarch.zfile.getName()).getName() + "(" + entry + ")"; |
| } |
| |
| @Override |
| public JavaFileObject.Kind getKind() { |
| return getKind(entry.getName()); |
| } |
| |
| @Override |
| public InputStream openInputStream() throws IOException { |
| return zarch.zfile.getInputStream(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) { |
| InputStream in = zarch.zfile.getInputStream(entry); |
| try { |
| 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); |
| if (!ignoreEncodingErrors) { |
| fileManager.cache(this, cb); |
| } |
| } finally { |
| in.close(); |
| } |
| } |
| return cb; |
| } |
| |
| @Override |
| public Writer openWriter() throws IOException { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public long getLastModified() { |
| return entry.getTime(); |
| } |
| |
| @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(); |
| 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 ZipFileObjects 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 ZipFileObject)) |
| return false; |
| |
| ZipFileObject o = (ZipFileObject) other; |
| return zarch.getAbsoluteFile().equals(o.zarch.getAbsoluteFile()) |
| && name.equals(o.name); |
| } |
| |
| @Override |
| public int hashCode() { |
| return zarch.getAbsoluteFile().hashCode() + name.hashCode(); |
| } |
| } |
| |
| } |