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   }