Source for gnu.javax.rmi.CORBA.CorbaOutput

   1: /* CorbaOutput.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.javax.rmi.CORBA;
  40: 
  41: import org.omg.CORBA_2_3.portable.OutputStream;
  42: 
  43: import java.io.IOException;
  44: import java.io.ObjectOutput;
  45: import java.io.ObjectOutputStream;
  46: import java.io.Serializable;
  47: 
  48: /**
  49:  * A class to substitute as an ObjectOutputStream for objects using writeObject
  50:  * method.
  51:  *
  52:  * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
  53:  */
  54: public class CorbaOutput
  55:   extends ObjectOutputStream
  56:   implements ObjectOutput
  57: {
  58:   /**
  59:    * A CORBA stream where the output is forwarded.
  60:    */
  61:   final OutputStream stream;
  62: 
  63:   /**
  64:    * The utility class to write the object fields in default way.
  65:    */
  66:   final RmiUtilities util;
  67: 
  68:   /**
  69:    * The object currently being written.
  70:    */
  71:   Object current;
  72: 
  73:   /**
  74:    * Create an instance, delegating calls to the given CORBA stream.
  75:    */
  76:   public CorbaOutput(OutputStream an_output, Object firstObject,
  77:                            RmiUtilities an_util)
  78:     throws Exception
  79:   {
  80:     stream = an_output;
  81:     current = firstObject;
  82:     util = an_util;
  83:   }
  84: 
  85:   /**
  86:    * No action.
  87:    */
  88:   public void close()
  89:     throws IOException
  90:   {
  91:   }
  92: 
  93:   /** @inheritDoc */
  94:   public void flush()
  95:     throws IOException
  96:   {
  97:     stream.flush();
  98:   }
  99: 
 100:   /** @inheritDoc */
 101:   public void write(byte[] buf, int off, int len)
 102:     throws IOException
 103:   {
 104:     stream.write(buf, off, len);
 105:   }
 106: 
 107:   /** @inheritDoc */
 108:   public void write(byte[] buf)
 109:     throws IOException
 110:   {
 111:     stream.write(buf);
 112:   }
 113: 
 114:   /** @inheritDoc */
 115:   public void write(int val)
 116:     throws IOException
 117:   {
 118:     stream.write(val);
 119:   }
 120: 
 121:   /** @inheritDoc */
 122:   public void writeBoolean(boolean val)
 123:     throws IOException
 124:   {
 125:     stream.write_boolean(val);
 126:   }
 127: 
 128:   /** @inheritDoc */
 129:   public void writeByte(int val)
 130:     throws IOException
 131:   {
 132:     stream.write(val);
 133:   }
 134: 
 135:   /** @inheritDoc */
 136:   public void writeBytes(String str)
 137:     throws IOException
 138:   {
 139:     stream.write_string(str);
 140:   }
 141: 
 142:   /** @inheritDoc */
 143:   public void writeChar(int val)
 144:     throws IOException
 145:   {
 146:     stream.write_wchar((char) val);
 147:   }
 148: 
 149:   /** @inheritDoc */
 150:   public void writeChars(String str)
 151:     throws IOException
 152:   {
 153:     stream.write_char_array(str.toCharArray(), 0, str.length());
 154:   }
 155: 
 156:   /** @inheritDoc */
 157:   public void writeDouble(double val)
 158:     throws IOException
 159:   {
 160:     stream.write_double(val);
 161:   }
 162: 
 163:   /** @inheritDoc */
 164:   public void writeFloat(float val)
 165:     throws IOException
 166:   {
 167:     stream.write_float(val);
 168:   }
 169: 
 170:   /** @inheritDoc */
 171:   public void writeInt(int val)
 172:     throws IOException
 173:   {
 174:     stream.write_long(val);
 175:   }
 176: 
 177:   /** @inheritDoc */
 178:   public void writeLong(long val)
 179:     throws IOException
 180:   {
 181:     stream.write_longlong(val);
 182:   }
 183: 
 184:   /**
 185:    * Objects are written as abstract interfaces.
 186:    */
 187:   protected void writeObjectOverride(Object obj)
 188:     throws IOException
 189:   {
 190:     current = obj;
 191:     stream.write_abstract_interface(obj);
 192:   }
 193: 
 194:   /** @inheritDoc */
 195:   public void writeShort(int val)
 196:     throws IOException
 197:   {
 198:     stream.write_short((short) val);
 199:   }
 200: 
 201:   /**
 202:    * Such strings are written as wide strings, not as UTF.
 203:    */
 204:   public void writeUTF(String str)
 205:     throws IOException
 206:   {
 207:     stream.write_wstring(str);
 208:   }
 209: 
 210:   /**
 211:    * @inheritDoc
 212:    */
 213:   public void defaultWriteObject()
 214:     throws IOException
 215:   {
 216:     util.writeFields(stream, (Serializable) current);
 217:   }
 218: 
 219: }