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      1 /*
      2  * ProGuard -- shrinking, optimization, obfuscation, and preverification
      3  *             of Java bytecode.
      4  *
      5  * Copyright (c) 2002-2014 Eric Lafortune (eric (at) graphics.cornell.edu)
      6  *
      7  * This program is free software; you can redistribute it and/or modify it
      8  * under the terms of the GNU General Public License as published by the Free
      9  * Software Foundation; either version 2 of the License, or (at your option)
     10  * any later version.
     11  *
     12  * This program is distributed in the hope that it will be useful, but WITHOUT
     13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
     14  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
     15  * more details.
     16  *
     17  * You should have received a copy of the GNU General Public License along
     18  * with this program; if not, write to the Free Software Foundation, Inc.,
     19  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
     20  */
     21 package proguard.io;
     22 
     23 import java.io.*;
     24 
     25 /**
     26  * This DataEntryWriter lets another DataEntryWriter write the parent data
     27  * entries.
     28  *
     29  * @author Eric Lafortune
     30  */
     31 public class ParentDataEntryWriter implements DataEntryWriter
     32 {
     33     private DataEntryWriter dataEntryWriter;
     34 
     35 
     36     /**
     37      * Creates a new ParentDataEntryWriter.
     38      * @param dataEntryWriter the DataEntryWriter to which the writing will be
     39      *                        delegated, passing the data entries' parents.
     40      */
     41     public ParentDataEntryWriter(DataEntryWriter dataEntryWriter)
     42     {
     43         this.dataEntryWriter = dataEntryWriter;
     44     }
     45 
     46 
     47     // Implementations for DataEntryWriter.
     48 
     49 
     50     public boolean createDirectory(DataEntry dataEntry) throws IOException
     51     {
     52         return getOutputStream(dataEntry) != null;
     53     }
     54 
     55 
     56     public OutputStream getOutputStream(DataEntry dataEntry) throws IOException
     57     {
     58         return getOutputStream(dataEntry, null);
     59     }
     60 
     61 
     62     public OutputStream getOutputStream(DataEntry dataEntry,
     63                                         Finisher  finisher) throws IOException
     64     {
     65         return dataEntryWriter.getOutputStream(dataEntry.getParent(),
     66                                                finisher);
     67     }
     68 
     69 
     70     public void close() throws IOException
     71     {
     72         dataEntryWriter.close();
     73         dataEntryWriter = null;
     74     }
     75 }
     76