applications/jpip/util/opj_viewer/src/ImgdecClient.java

   1 /*
   2  * $Id$
   3  *
   4  * Copyright (c) 2002-2011, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
   5  * Copyright (c) 2002-2011, Professor Benoit Macq
   6  * Copyright (c) 2010-2011, Kaori Hagihara
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
  19  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 import java.io.*;
  32 import java.net.*;
  33
  34 public class ImgdecClient{
  35
  36     public static PnmImage decode_jpipstream( byte[] jpipstream, String tid, String cid, int fw, int fh)
  37     {
  38         if( jpipstream != null)
  39             send_JPIPstream( jpipstream);
  40         return get_PNMstream( cid, tid, fw, fh);
  41     }
  42
  43     public static PnmImage decode_jpipstream( byte[] jpipstream, String j2kfilename, String tid, String cid, int fw, int fh)
  44     {
  45         send_JPIPstream( jpipstream, j2kfilename, tid, cid);
  46         return get_PNMstream( cid, tid, fw, fh);
  47     }
  48
  49     public static void send_JPIPstream( byte[] jpipstream)
  50     {
  51         try{
  52             Socket imgdecSocket = new Socket( "localhost", 50000);
  53             DataOutputStream os = new DataOutputStream( imgdecSocket.getOutputStream());
  54             DataInputStream  is = new DataInputStream( imgdecSocket.getInputStream());
  55
  56             System.err.println("Sending " + jpipstream.length + "Data Bytes to decodingServer");
  57
  58             os.writeBytes("JPIP-stream\n");
  59             os.writeBytes("version 1.2\n");
  60             os.writeBytes( jpipstream.length + "\n");
  61             os.write( jpipstream, 0, jpipstream.length);
  62
  63             byte signal = is.readByte();
  64
  65             if( signal == 0)
  66                 System.err.println("    failed");
  67         } catch (UnknownHostException e) {
  68             System.err.println("Trying to connect to unknown host: " + e);
  69         } catch (IOException e) {
  70             System.err.println("IOException: " + e);
  71         }
  72     }
  73
  74     public static void send_JPIPstream( byte[] jpipstream, String j2kfilename, String tid, String cid)
  75     {
  76         try{
  77             Socket imgdecSocket = new Socket( "localhost", 50000);
  78             DataOutputStream os = new DataOutputStream( imgdecSocket.getOutputStream());
  79             DataInputStream  is = new DataInputStream( imgdecSocket.getInputStream());
  80             int length = 0;
  81
  82             if( jpipstream != null)
  83                 length = jpipstream.length;
  84
  85             System.err.println("Sending " + length + "Data Bytes to decodingServer");
  86
  87             os.writeBytes("JPIP-stream\n");
  88             os.writeBytes("version 1.2\n");
  89             os.writeBytes( j2kfilename + "\n");
  90             if( tid == null)
  91                 os.writeBytes( "0\n");
  92             else
  93                 os.writeBytes( tid + "\n");
  94             if( cid == null)
  95                 os.writeBytes( "0\n");
  96             else
  97                 os.writeBytes( cid + "\n");
  98             os.writeBytes( length + "\n");
  99             os.write( jpipstream, 0, length);
 100
 101             byte signal = is.readByte();
 102
 103             if( signal == 0)
 104                 System.err.println("    failed");
 105         } catch (UnknownHostException e) {
 106             System.err.println("Trying to connect to unknown host: " + e);
 107         } catch (IOException e) {
 108             System.err.println("IOException: " + e);
 109         }
 110     }
 111
 112     public static PnmImage get_PNMstream( String cid, String tid, int fw, int fh)
 113     {
 114         PnmImage pnmstream = null;
 115
 116         try {
 117             Socket imgdecSocket = new Socket( "localhost", 50000);
 118             DataOutputStream os = new DataOutputStream( imgdecSocket.getOutputStream());
 119             DataInputStream is = new DataInputStream( imgdecSocket.getInputStream());
 120             byte []header = new byte[7];
 121
 122             os.writeBytes("PNM request\n");
 123             if( cid != null)
 124                 os.writeBytes( cid + "\n");
 125             else
 126                 if( tid != null)
 127                     os.writeBytes( tid + "\n");
 128                 else
 129                     os.writeBytes( "0\n");
 130             os.writeBytes( fw + "\n");
 131             os.writeBytes( fh + "\n");
 132
 133             read_stream( is, header, 7);
 134
 135             if( header[0] == 80){
 136                 // P5: gray, P6: color
 137                 byte magicknum = header[1];
 138                 if( magicknum == 5 || magicknum == 6){
 139                     int c = magicknum==6 ? 3: 1;
 140                     int w = (header[2]&0xff)<<8 | (header[3]&0xff);
 141                     int h = (header[4]&0xff)<<8 | (header[5]&0xff);
 142                     int maxval = header[6]&0xff;
 143                     int length = w*h*c;
 144
 145                     if( maxval == 255 && length != 0){
 146                         pnmstream = new PnmImage( c, w, h);
 147                         read_stream( is, pnmstream.get_data(), length);
 148                     }
 149                     else
 150                         System.err.println("Error in get_PNMstream(), only 255 is accepted");
 151                 }
 152                 else
 153                     System.err.println("Error in get_PNMstream(), wrong magick number" + header[1]);
 154             }
 155             else
 156                 System.err.println("Error in get_PNMstream(), Not starting with P");
 157
 158             os.close();
 159             is.close();
 160             imgdecSocket.close();
 161         } catch (UnknownHostException e) {
 162             System.err.println("Trying to connect to unknown host: " + e);
 163         } catch (IOException e) {
 164             System.err.println("IOException: " + e);
 165         }
 166         return pnmstream;
 167     }
 168
 169     public static byte [] get_XMLstream( String cid)
 170     {
 171         byte []xmldata = null;
 172
 173         try{
 174             Socket imgdecSocket = new Socket( "localhost", 50000);
 175             DataOutputStream os = new DataOutputStream( imgdecSocket.getOutputStream());
 176             DataInputStream is = new DataInputStream( imgdecSocket.getInputStream());
 177             byte []header = new byte[5];
 178
 179             os.writeBytes("XML request\n");
 180             os.writeBytes( cid + "\n");
 181
 182             read_stream( is, header, 5);
 183
 184             if( header[0] == 88 && header[1] == 77 && header[2] == 76){
 185                 int length = (header[3]&0xff)<<8 | (header[4]&0xff);
 186
 187                 xmldata = new byte[ length];
 188                 read_stream( is, xmldata, length);
 189             }
 190             else
 191                 System.err.println("Error in get_XMLstream(), not starting with XML");
 192         } catch (UnknownHostException e) {
 193             System.err.println("Trying to connect to unknown host: " + e);
 194         } catch (IOException e) {
 195             System.err.println("IOException: " + e);
 196         }
 197         return xmldata;
 198     }
 199
 200     public static String query_cid( String j2kfilename)
 201     {
 202         int []retmsglabel = new int[3];
 203         retmsglabel[0] = 67;
 204         retmsglabel[1] = 73;
 205         retmsglabel[2] = 68;
 206
 207         return query_id( "CID request", j2kfilename, retmsglabel);
 208     }
 209
 210     public static String query_tid( String j2kfilename)
 211     {
 212         int []retmsglabel = new int[3];
 213         retmsglabel[0] = 84;
 214         retmsglabel[1] = 73;
 215         retmsglabel[2] = 68;
 216
 217         return query_id( "TID request", j2kfilename, retmsglabel);
 218     }
 219
 220     public static String query_id( String reqmsghead, String j2kfilename, int[] retmsglabel)
 221     {
 222         String id = null;
 223
 224         try{
 225             Socket imgdecSocket = new Socket( "localhost", 50000);
 226             DataOutputStream os = new DataOutputStream( imgdecSocket.getOutputStream());
 227             DataInputStream is = new DataInputStream( imgdecSocket.getInputStream());
 228             byte []header = new byte[4];
 229
 230             os.writeBytes( reqmsghead + "\n");
 231             os.writeBytes( j2kfilename + "\n");
 232
 233             read_stream( is, header, 4);
 234
 235             if( header[0] == retmsglabel[0] && header[1] == retmsglabel[1] && header[2] == retmsglabel[2]){
 236                 int length = header[3]&0xff;
 237
 238                 if( length > 0){
 239
 240                     byte []iddata = new byte[ length];
 241                     read_stream( is, iddata, length);
 242                     id = new String( iddata);
 243                 }
 244             }
 245             else
 246                 System.err.println("Error in query_id("+ reqmsghead + "), wrong to start with " + header);
 247         }
 248         catch (UnknownHostException e) {
 249             System.err.println("Trying to connect to unknown host: " + e);
 250         } catch (IOException e) {
 251             System.err.println("IOException: " + e);
 252         }
 253
 254         return id;
 255     }
 256
 257     public static java.awt.Dimension query_imagesize( String cid, String tid)
 258     {
 259         java.awt.Dimension dim = null;
 260
 261         try{
 262             Socket imgdecSocket = new Socket( "localhost", 50000);
 263             DataOutputStream os = new DataOutputStream( imgdecSocket.getOutputStream());
 264             DataInputStream is = new DataInputStream( imgdecSocket.getInputStream());
 265             byte []header = new byte[3];
 266
 267             os.writeBytes( "SIZ request\n");
 268             if( tid == null)
 269                 os.writeBytes( "0\n");
 270             else
 271                 os.writeBytes( tid + "\n");
 272             if( cid == null)
 273                 os.writeBytes( "0\n");
 274             else
 275                 os.writeBytes( cid + "\n");
 276
 277             read_stream( is, header, 3);
 278
 279             if( header[0] == 83 && header[1] == 73 && header[2] == 90){
 280
 281                 byte []data = new byte[ 3];
 282                 read_stream( is, data, 3);
 283                 int w = (data[0]&0xff)<<16 | (data[1]&0xff)<<8 | (data[2]&0xff);
 284                 read_stream( is, data, 3);
 285                 int h = (data[0]&0xff)<<16 | (data[1]&0xff)<<8 | (data[2]&0xff);
 286                 dim = new java.awt.Dimension( w, h);
 287             }
 288             else
 289                 System.err.println("Error in query_imagesize("+ cid + ", " + tid + "), wrong to start with " + header);
 290         }
 291         catch (UnknownHostException e) {
 292             System.err.println("Trying to connect to unknown host: " + e);
 293         } catch (IOException e) {
 294             System.err.println("IOException: " + e);
 295         }
 296
 297         return dim;
 298     }
 299
 300     public static void read_stream( DataInputStream is, byte []stream, int length)
 301     {
 302         int remlen = length;
 303         int off = 0;
 304
 305         try{
 306             while( remlen > 0){
 307                 int redlen = is.read( stream, off, remlen);
 308
 309                 if( redlen == -1){
 310                     System.err.println("    failed to read_stream()");
 311                     break;
 312                 }
 313                 off += redlen;
 314                 remlen -= redlen;
 315             }
 316         } catch (IOException e) {
 317             System.err.println("IOException: " + e);
 318         }
 319     }
 320
 321     public static void destroy_cid( String cid)
 322     {
 323         try{
 324             Socket imgdecSocket = new Socket( "localhost", 50000);
 325             DataOutputStream os = new DataOutputStream( imgdecSocket.getOutputStream());
 326             DataInputStream  is = new DataInputStream( imgdecSocket.getInputStream());
 327
 328             os.writeBytes("CID destroy\n");
 329             os.writeBytes( cid + "\n");
 330
 331             byte signal = is.readByte();
 332
 333             if( signal == 0)
 334                 System.err.println("    failed");
 335         } catch (UnknownHostException e) {
 336             System.err.println("Trying to connect to unknown host: " + e);
 337         } catch (IOException e) {
 338             System.err.println("IOException: " + e);
 339         }
 340     }
 341 }