jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/javac/file/ZipFileIndexArchive.java@2eb010b6cb22

     1 /*

     2  * Copyright (c) 2005, 2011, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    26 package com.sun.tools.javac.file;

    28 import java.io.IOException;

    29 import java.util.Set;

    30 import javax.tools.JavaFileObject;

    32 import java.io.ByteArrayInputStream;

    33 import java.io.File;

    34 import java.io.InputStream;

    35 import java.io.OutputStream;

    36 import java.io.Writer;

    37 import java.net.URI;

    38 import java.nio.ByteBuffer;

    39 import java.nio.CharBuffer;

    40 import java.nio.charset.CharsetDecoder;

    42 import com.sun.tools.javac.file.JavacFileManager.Archive;

    43 import com.sun.tools.javac.file.RelativePath.RelativeDirectory;

    44 import com.sun.tools.javac.file.RelativePath.RelativeFile;

    45 import com.sun.tools.javac.util.Assert;

    46 import com.sun.tools.javac.util.List;

    48 /**

    49  * <p><b>This is NOT part of any supported API.

    50  * If you write code that depends on this, you do so at your own risk.

    51  * This code and its internal interfaces are subject to change or

    52  * deletion without notice.</b>

    53  */

    54 public class ZipFileIndexArchive implements Archive {

    56     private final ZipFileIndex zfIndex;

    57     private JavacFileManager fileManager;

    59     public ZipFileIndexArchive(JavacFileManager fileManager, ZipFileIndex zdir) throws IOException {

    60         super();

    61         this.fileManager = fileManager;

    62         this.zfIndex = zdir;

    63     }

    65     public boolean contains(RelativePath name) {

    66         return zfIndex.contains(name);

    67     }

    69     public List<String> getFiles(RelativeDirectory subdirectory) {

    70         return zfIndex.getFiles(subdirectory);

    71     }

    73     public JavaFileObject getFileObject(RelativeDirectory subdirectory, String file) {

    74         RelativeFile fullZipFileName = new RelativeFile(subdirectory, file);

    75         ZipFileIndex.Entry entry = zfIndex.getZipIndexEntry(fullZipFileName);

    76         JavaFileObject ret = new ZipFileIndexFileObject(fileManager, zfIndex, entry, zfIndex.getZipFile());

    77         return ret;

    78     }

    80     public Set<RelativeDirectory> getSubdirectories() {

    81         return zfIndex.getAllDirectories();

    82     }

    84     public void close() throws IOException {

    85         zfIndex.close();

    86     }

    88     @Override

    89     public String toString() {

    90         return "ZipFileIndexArchive[" + zfIndex + "]";

    91     }

    93     /**

    94      * A subclass of JavaFileObject representing zip entries using the com.sun.tools.javac.file.ZipFileIndex implementation.

    95      */

    96     public static class ZipFileIndexFileObject extends BaseFileObject {

    98         /** The entry's name.

    99          */

   100         private String name;

   102         /** The zipfile containing the entry.

   103          */

   104         ZipFileIndex zfIndex;

   106         /** The underlying zip entry object.

   107          */

   108         ZipFileIndex.Entry entry;

   110         /** The InputStream for this zip entry (file.)

   111          */

   112         InputStream inputStream = null;

   114         /** The name of the zip file where this entry resides.

   115          */

   116         File zipName;

   119         ZipFileIndexFileObject(JavacFileManager fileManager, ZipFileIndex zfIndex, ZipFileIndex.Entry entry, File zipFileName) {

   120             super(fileManager);

   121             this.name = entry.getFileName();

   122             this.zfIndex = zfIndex;

   123             this.entry = entry;

   124             this.zipName = zipFileName;

   125         }

   127         @Override

   128         public URI toUri() {

   129             return createJarUri(zipName, getPrefixedEntryName());

   130         }

   132         @Override

   133         public String getName() {

   134             return zipName + "(" + getPrefixedEntryName() + ")";

   135         }

   137         @Override

   138         public String getShortName() {

   139             return zipName.getName() + "(" + entry.getName() + ")";

   140         }

   142         @Override

   143         public JavaFileObject.Kind getKind() {

   144             return getKind(entry.getName());

   145         }

   147         @Override

   148         public InputStream openInputStream() throws IOException {

   149             if (inputStream == null) {

   150                 Assert.checkNonNull(entry); // see constructor

   151                 inputStream = new ByteArrayInputStream(zfIndex.read(entry));

   152             }

   153             return inputStream;

   154         }

   156         @Override

   157         public OutputStream openOutputStream() throws IOException {

   158             throw new UnsupportedOperationException();

   159         }

   161         @Override

   162         public CharBuffer getCharContent(boolean ignoreEncodingErrors) throws IOException {

   163             CharBuffer cb = fileManager.getCachedContent(this);

   164             if (cb == null) {

   165                 InputStream in = new ByteArrayInputStream(zfIndex.read(entry));

   166                 try {

   167                     ByteBuffer bb = fileManager.makeByteBuffer(in);

   168                     JavaFileObject prev = fileManager.log.useSource(this);

   169                     try {

   170                         cb = fileManager.decode(bb, ignoreEncodingErrors);

   171                     } finally {

   172                         fileManager.log.useSource(prev);

   173                     }

   174                     fileManager.recycleByteBuffer(bb); // save for next time

   175                     if (!ignoreEncodingErrors)

   176                         fileManager.cache(this, cb);

   177                 } finally {

   178                     in.close();

   179                 }

   180             }

   181             return cb;

   182         }

   184         @Override

   185         public Writer openWriter() throws IOException {

   186             throw new UnsupportedOperationException();

   187         }

   189         @Override

   190         public long getLastModified() {

   191             return entry.getLastModified();

   192         }

   194         @Override

   195         public boolean delete() {

   196             throw new UnsupportedOperationException();

   197         }

   199         @Override

   200         protected CharsetDecoder getDecoder(boolean ignoreEncodingErrors) {

   201             return fileManager.getDecoder(fileManager.getEncodingName(), ignoreEncodingErrors);

   202         }

   204         @Override

   205         protected String inferBinaryName(Iterable<? extends File> path) {

   206             String entryName = entry.getName();

   207             if (zfIndex.symbolFilePrefix != null) {

   208                 String prefix = zfIndex.symbolFilePrefix.path;

   209                 if (entryName.startsWith(prefix))

   210                     entryName = entryName.substring(prefix.length());

   211             }

   212             return removeExtension(entryName).replace('/', '.');

   213         }

   215         @Override

   216         public boolean isNameCompatible(String cn, JavaFileObject.Kind k) {

   217             cn.getClass(); // null check

   218             if (k == Kind.OTHER && getKind() != k)

   219                 return false;

   220             return name.equals(cn + k.extension);

   221         }

   223         /**

   224          * Check if two file objects are equal.

   225          * Two ZipFileIndexFileObjects are equal if the absolute paths of the underlying

   226          * zip files are equal and if the paths within those zip files are equal.

   227          */

   228         @Override

   229         public boolean equals(Object other) {

   230             if (this == other)

   231                 return true;

   233             if (!(other instanceof ZipFileIndexFileObject))

   234                 return false;

   236             ZipFileIndexFileObject o = (ZipFileIndexFileObject) other;

   237             return zfIndex.getAbsoluteFile().equals(o.zfIndex.getAbsoluteFile())

   238                     && name.equals(o.name);

   239         }

   241         @Override

   242         public int hashCode() {

   243             return zfIndex.getAbsoluteFile().hashCode() + name.hashCode();

   244         }

   246         private String getPrefixedEntryName() {

   247             if (zfIndex.symbolFilePrefix != null)

   248                 return zfIndex.symbolFilePrefix.path + entry.getName();

   249             else

   250                 return entry.getName();

   251         }

   252     }

   254 }

Mercurial > jdk8-mips64-public > langtools / file revision

src/share/classes/com/sun/tools/javac/file/ZipFileIndexArchive.java@2eb010b6cb22

src/share/classes/com/sun/tools/javac/file/ZipFileIndexArchive.java