1   /*
    2    * Copyright 2007-2008 Sun Microsystems, Inc.  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.  Sun designates this
    8    * particular file as subject to the "Classpath" exception as provided
    9    * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
   22    * CA 95054 USA or visit www.sun.com if you need additional information or
   23    * have any questions.
   24    */
   25   
   26   package com.sun.tools.javac.zip;
   27   
   28   import java.io.File;
   29   import java.util.Calendar;
   30   
   31   public final class ZipFileIndexEntry implements Comparable<ZipFileIndexEntry> {
   32       public static final ZipFileIndexEntry[] EMPTY_ARRAY = {};
   33   
   34       // Directory related
   35       String dir;
   36       boolean isDir;
   37   
   38       // File related
   39       String name;
   40   
   41       int offset;
   42       int size;
   43       int compressedSize;
   44       long javatime;
   45   
   46       private int nativetime;
   47   
   48       public ZipFileIndexEntry(String path) {
   49           int separator = path.lastIndexOf(File.separatorChar);
   50           if (separator == -1) {
   51               dir = "".intern();
   52               name = path;
   53           } else {
   54               dir = path.substring(0, separator).intern();
   55               name = path.substring(separator + 1);
   56           }
   57       }
   58   
   59       public ZipFileIndexEntry(String directory, String name) {
   60           this.dir = directory.intern();
   61           this.name = name;
   62       }
   63   
   64       public String getName() {
   65           if (dir == null || dir.length() == 0) {
   66               return name;
   67           }
   68   
   69           StringBuilder sb = new StringBuilder();
   70           sb.append(dir);
   71           sb.append(File.separatorChar);
   72           sb.append(name);
   73           return sb.toString();
   74       }
   75   
   76       public String getFileName() {
   77           return name;
   78       }
   79   
   80       public long getLastModified() {
   81           if (javatime == 0) {
   82                   javatime = dosToJavaTime(nativetime);
   83           }
   84           return javatime;
   85       }
   86   
   87       // based on dosToJavaTime in java.util.Zip, but avoiding the
   88       // use of deprecated Date constructor
   89       private static long dosToJavaTime(int dtime) {
   90           Calendar c = Calendar.getInstance();
   91           c.set(Calendar.YEAR,        ((dtime >> 25) & 0x7f) + 1980);
   92           c.set(Calendar.MONTH,       ((dtime >> 21) & 0x0f) - 1);
   93           c.set(Calendar.DATE,        ((dtime >> 16) & 0x1f));
   94           c.set(Calendar.HOUR_OF_DAY, ((dtime >> 11) & 0x1f));
   95           c.set(Calendar.MINUTE,      ((dtime >>  5) & 0x3f));
   96           c.set(Calendar.SECOND,      ((dtime <<  1) & 0x3e));
   97           c.set(Calendar.MILLISECOND, 0);
   98           return c.getTimeInMillis();
   99       }
  100       
  101       void setNativeTime(int natTime) {
  102           nativetime = natTime;
  103       }
  104   
  105       public boolean isDirectory() {
  106           return isDir;
  107       }
  108   
  109       public int compareTo(ZipFileIndexEntry other) {
  110           String otherD = other.dir;
  111           if (dir != otherD) {
  112               int c = dir.compareTo(otherD);
  113               if (c != 0)
  114                   return c;
  115           }
  116           return name.compareTo(other.name);
  117       }
  118   
  119   
  120       public String toString() {
  121           return isDir ? ("Dir:" + dir + " : " + name) :
  122               (dir + ":" + name);
  123       }
  124   }