Source for gnu.inet.nntp.PostStream

   1: /*
   2:  * PostStream.java
   3:  * Copyright (C) 2002, 2003 The free Software Foundation
   4:  * 
   5:  * This file is part of GNU inetlib, a library.
   6:  * 
   7:  * GNU inetlib is free software; you can redistribute it and/or modify
   8:  * it under the terms of the GNU General Public License as published by
   9:  * the Free Software Foundation; either version 2 of the License, or
  10:  * (at your option) any later version.
  11:  * 
  12:  * GNU inetlib is distributed in the hope that it will be useful,
  13:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15:  * GNU General Public License for more details.
  16:  * 
  17:  * You should have received a copy of the GNU General Public License
  18:  * along with this library; if not, write to the Free Software
  19:  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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:  * obliged to do so.  If you do not wish to do so, delete this
  36:  * exception statement from your version.
  37:  */
  38: 
  39: package gnu.inet.nntp;
  40: 
  41: import java.io.FilterOutputStream;
  42: import java.io.OutputStream;
  43: import java.io.IOException;
  44: 
  45: /**
  46:  * A stream to which article contents should be written.
  47:  *
  48:  * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
  49:  */
  50: public final class PostStream
  51:   extends FilterOutputStream
  52: {
  53: 
  54:   NNTPConnection connection;
  55:   boolean isTakethis;
  56:   byte last;
  57:   
  58:   PostStream(NNTPConnection connection, boolean isTakethis)
  59:   {
  60:     super(connection.out);
  61:     this.connection = connection;
  62:     this.isTakethis = isTakethis;
  63:   }
  64:   
  65:   public void write(int c)
  66:     throws IOException
  67:   {
  68:     super.write(c);
  69:     last = (byte) c;
  70:   }
  71: 
  72:   public void write(byte[] bytes)
  73:     throws IOException
  74:   {
  75:     write(bytes, 0, bytes.length);
  76:   }
  77: 
  78:   public void write(byte[] bytes, int pos, int len)
  79:     throws IOException
  80:   {
  81:     super.write(bytes, pos, len);
  82:     if(len > 0)
  83:       {
  84:         last = bytes[pos + len - 1];
  85:       }
  86:   }
  87:   
  88:   /**
  89:    * Close the stream.
  90:    * This calls NNTPConnection.postComplete().
  91:    */
  92:   public void close()
  93:     throws IOException
  94:   {
  95:     if (last != 0x0d)
  96:       {
  97:         // Need to add LF
  98:         write(0x0d);
  99:       }
 100:     if (isTakethis)
 101:       {
 102:         connection.takethisComplete();
 103:       }
 104:     else
 105:       {
 106:         connection.postComplete();
 107:       }
 108:   }
 109:   
 110: }