gomp-20050608-branch/libjava/classpath/gnu/CORBA/CDR/BufferedCdrOutput.java

   1 /* BufferedCdrOutput.java --
   2    Copyright (C) 2005 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Classpath.
   5
   6 GNU Classpath is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Classpath is distributed in the hope that it will be useful, but
  12 WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Classpath; see the file COPYING.  If not, write to the
  18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19 02110-1301 USA.
  20
  21 Linking this library statically or dynamically with other modules is
  22 making a combined work based on this library.  Thus, the terms and
  23 conditions of the GNU General Public License cover the whole
  24 combination.
  25
  26 As a special exception, the copyright holders of this library give you
  27 permission to link this library with independent modules to produce an
  28 executable, regardless of the license terms of these independent
  29 modules, and to copy and distribute the resulting executable under
  30 terms of your choice, provided that you also meet, for each linked
  31 independent module, the terms and conditions of the license of that
  32 module.  An independent module is a module which is not derived from
  33 or based on this library.  If you modify this library, you may extend
  34 this exception to your version of the library, but you are not
  35 obligated to do so.  If you do not wish to do so, delete this
  36 exception statement from your version. */
  37
  38
  39 package gnu.CORBA.CDR;
  40
  41 import java.io.ByteArrayOutputStream;
  42
  43 /**
  44  * A CORBA output stream, writing data into the internal buffer ({@link ByteArrayOutputStream}).
  45  *
  46  * @author Audrius Meskauskas (AudriusA@Bioinformatics.org)
  47  */
  48 public class BufferedCdrOutput
  49   extends AbstractCdrOutput
  50   implements gnuValueStream
  51 {
  52   /**
  53    * Use serialVersionUID for interoperability.
  54    */
  55   private static final long serialVersionUID = 1;
  56
  57   /**
  58    * The byte buffer.
  59    */
  60   public final AligningOutput buffer;
  61
  62   /**
  63    * Creates the instance with the given initial buffer size.
  64    *
  65    * @param bufSize the buffer size.
  66    */
  67   public BufferedCdrOutput(int bufSize)
  68   {
  69     buffer = new AligningOutput(bufSize);
  70     setOutputStream(buffer);
  71   }
  72
  73   /**
  74    * Creates the instance with the default buffer size.
  75    */
  76   public BufferedCdrOutput()
  77   {
  78     buffer = new AligningOutput();
  79     setOutputStream(buffer);
  80   }
  81
  82   /**
  83    * Set the alignment offset, if the index of the first byte in the stream is
  84    * different from 0.
  85    */
  86   public void setOffset(int an_offset)
  87   {
  88     buffer.setOffset(an_offset);
  89   }
  90
  91   /**
  92    * Align the curretn position at the given natural boundary.
  93    */
  94   public void align(int boundary)
  95   {
  96     buffer.align(boundary);
  97   }
  98
  99   /**
 100    * Return the input stream that reads the previously written values.
 101    */
 102   public org.omg.CORBA.portable.InputStream create_input_stream()
 103   {
 104     BufferredCdrInput in = new BufferredCdrInput(buffer.toByteArray());
 105     in.setOrb(orb);
 106
 107     in.setVersion(giop);
 108     in.setCodeSet(getCodeSet());
 109
 110     return in;
 111   }
 112
 113   /**
 114    * Resets (clears) the buffer.
 115    */
 116   public void reset()
 117   {
 118     buffer.reset();
 119     setOutputStream(buffer);
 120   }
 121
 122   /**
 123    * Get the current position in the buffer.
 124    *
 125    * @return The position in the buffer, taking offset into consideration.
 126    */
 127   public int getPosition()
 128   {
 129     return buffer.getPosition();
 130   }
 131
 132   /**
 133    * Get the associated RunTime.
 134    */
 135   public gnuRuntime getRunTime()
 136   {
 137     return runtime;
 138   }
 139
 140   /**
 141    * Replace the instance of RunTime.
 142    */
 143   public void setRunTime(gnuRuntime a_runtime)
 144   {
 145     runtime = a_runtime;
 146   }
 147
 148   /**
 149    * Seek to the given position.
 150    */
 151   public void seek(int position)
 152   {
 153     buffer.seek(position);
 154   }
 155
 156 }