1 /*

     2  * Copyright (c) 2005, 2009, 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  */

    25 

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

    27 

    28 import java.io.File;

    29 import java.io.IOException;

    30 import java.util.zip.ZipEntry;

    31 import java.util.zip.ZipFile;

    32 import javax.tools.JavaFileObject;

    33 

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

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

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

    37 

    38 /**

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

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

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

    42  * deletion without notice.</b>

    43 */

    44 public class SymbolArchive extends ZipArchive {

    45 

    46     final File origFile;

    47     final RelativeDirectory prefix;

    48 

    49     public SymbolArchive(JavacFileManager fileManager, File orig, ZipFile zdir, RelativeDirectory prefix) throws IOException {

    50         super(fileManager, zdir, false);

    51         this.origFile = orig;

    52         this.prefix = prefix;

    53         initMap();

    54     }

    55 

    56     @Override

    57     void addZipEntry(ZipEntry entry) {

    58         String name = entry.getName();

    59         if (!name.startsWith(prefix.path)) {

    60             return;

    61         }

    62         name = name.substring(prefix.path.length());

    63         int i = name.lastIndexOf('/');

    64         RelativeDirectory dirname = new RelativeDirectory(name.substring(0, i+1));

    65         String basename = name.substring(i + 1);

    66         if (basename.length() == 0) {

    67             return;

    68         }

    69         List<String> list = map.get(dirname);

    70         if (list == null)

    71             list = List.nil();

    72         list = list.prepend(basename);

    73         map.put(dirname, list);

    74     }

    75 

    76     @Override

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

    78         RelativeDirectory prefix_subdir = new RelativeDirectory(prefix, subdirectory.path);

    79         ZipEntry ze = new RelativeFile(prefix_subdir, file).getZipEntry(zfile);

    80         return new SymbolFileObject(this, file, ze);

    81     }

    82 

    83     @Override

    84     public String toString() {

    85         return "SymbolArchive[" + zfile.getName() + "]";

    86     }

    87 

    88     /**

    89      * A subclass of JavaFileObject representing zip entries in a symbol file.

    90      */

    91     public static class SymbolFileObject extends ZipFileObject {

    92         protected SymbolFileObject(SymbolArchive zarch, String name, ZipEntry entry) {

    93             super(zarch, name, entry);

    94         }

    95 

    96         @Override

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

    98             String entryName = entry.getName();

    99             String prefix = ((SymbolArchive) zarch).prefix.path;

   100             if (entryName.startsWith(prefix))

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

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

   103         }

   104     }

   105 

   106 

   107 }