/*
* $Id$
*
* Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
* Copyright (c) 2002-2014, Professor Benoit Macq
* Copyright (c) 2010-2011, Kaori Hagihara
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
import java.io.*;
import java.net.*;
public class ImgdecClient{
private String hostname;
private int portNo;
public ImgdecClient( String host, int port)
{
hostname = host;
portNo = port;
}
public PnmImage decode_jpipstream( byte[] jpipstream, String tid, String cid, int fw, int fh)
{
if( jpipstream != null)
send_JPIPstream( jpipstream);
return get_PNMstream( cid, tid, fw, fh);
}
public PnmImage decode_jpipstream( byte[] jpipstream, String j2kfilename, String tid, String cid, int fw, int fh)
{
send_JPIPstream( jpipstream, j2kfilename, tid, cid);
return get_PNMstream( cid, tid, fw, fh);
}
public void send_JPIPstream( byte[] jpipstream)
{
try{
Socket imgdecSocket = new Socket( hostname, portNo);
DataOutputStream os = new DataOutputStream( imgdecSocket.getOutputStream());
DataInputStream is = new DataInputStream( imgdecSocket.getInputStream());
System.err.println("Sending " + jpipstream.length + "Data Bytes to decodingServer");
os.writeBytes("JPIP-stream\n");
os.writeBytes("version 1.2\n");
os.writeBytes( jpipstream.length + "\n");
os.write( jpipstream, 0, jpipstream.length);
byte signal = is.readByte();
if( signal == 0)
System.err.println(" failed");
} catch (UnknownHostException e) {
System.err.println("Trying to connect to unknown host: " + e);
} catch (IOException e) {
System.err.println("IOException: " + e);
}
}
public void send_JPIPstream( byte[] jpipstream, String j2kfilename, String tid, String cid)
{
try{
Socket imgdecSocket = new Socket( hostname, portNo);
DataOutputStream os = new DataOutputStream( imgdecSocket.getOutputStream());
DataInputStream is = new DataInputStream( imgdecSocket.getInputStream());
int length = 0;
if( jpipstream != null)
length = jpipstream.length;
System.err.println("Sending " + length + "Data Bytes to decodingServer");
os.writeBytes("JPIP-stream\n");
os.writeBytes("version 1.2\n");
os.writeBytes( j2kfilename + "\n");
if( tid == null)
os.writeBytes( "0\n");
else
os.writeBytes( tid + "\n");
if( cid == null)
os.writeBytes( "0\n");
else
os.writeBytes( cid + "\n");
os.writeBytes( length + "\n");
os.write( jpipstream, 0, length);
byte signal = is.readByte();
if( signal == 0)
System.err.println(" failed");
} catch (UnknownHostException e) {
System.err.println("Trying to connect to unknown host: " + e);
} catch (IOException e) {
System.err.println("IOException: " + e);
}
}
public PnmImage get_PNMstream( String cid, String tid, int fw, int fh)
{
PnmImage pnmstream = null;
try {
Socket imgdecSocket = new Socket( hostname, portNo);
DataOutputStream os = new DataOutputStream( imgdecSocket.getOutputStream());
DataInputStream is = new DataInputStream( imgdecSocket.getInputStream());
byte []header = new byte[7];
os.writeBytes("PNM request\n");
if( cid != null)
os.writeBytes( cid + "\n");
else
if( tid != null)
os.writeBytes( tid + "\n");
else
os.writeBytes( "0\n");
os.writeBytes( fw + "\n");
os.writeBytes( fh + "\n");
read_stream( is, header, 7);
if( header[0] == 80){
// P5: gray, P6: color
byte magicknum = header[1];
if( magicknum == 5 || magicknum == 6){
int c = magicknum==6 ? 3: 1;
int w = (header[2]&0xff)<<8 | (header[3]&0xff);
int h = (header[4]&0xff)<<8 | (header[5]&0xff);
int maxval = header[6]&0xff;
int length = w*h*c;
if( maxval == 255 && length != 0){
pnmstream = new PnmImage( c, w, h);
read_stream( is, pnmstream.get_data(), length);
}
else
System.err.println("Error in get_PNMstream(), only 255 is accepted");
}
else
System.err.println("Error in get_PNMstream(), wrong magick number" + header[1]);
}
else
System.err.println("Error in get_PNMstream(), Not starting with P");
os.close();
is.close();
imgdecSocket.close();
} catch (UnknownHostException e) {
System.err.println("Trying to connect to unknown host: " + e);
} catch (IOException e) {
System.err.println("IOException: " + e);
}
return pnmstream;
}
public byte [] get_XMLstream( String cid)
{
byte []xmldata = null;
try{
Socket imgdecSocket = new Socket( hostname, portNo);
DataOutputStream os = new DataOutputStream( imgdecSocket.getOutputStream());
DataInputStream is = new DataInputStream( imgdecSocket.getInputStream());
byte []header = new byte[5];
os.writeBytes("XML request\n");
os.writeBytes( cid + "\n");
read_stream( is, header, 5);
if( header[0] == 88 && header[1] == 77 && header[2] == 76){
int length = (header[3]&0xff)<<8 | (header[4]&0xff);
xmldata = new byte[ length];
read_stream( is, xmldata, length);
}
else
System.err.println("Error in get_XMLstream(), not starting with XML");
} catch (UnknownHostException e) {
System.err.println("Trying to connect to unknown host: " + e);
} catch (IOException e) {
System.err.println("IOException: " + e);
}
return xmldata;
}
public String query_cid( String j2kfilename)
{
int []retmsglabel = new int[3];
retmsglabel[0] = 67;
retmsglabel[1] = 73;
retmsglabel[2] = 68;
return query_id( "CID request", j2kfilename, retmsglabel);
}
public String query_tid( String j2kfilename)
{
int []retmsglabel = new int[3];
retmsglabel[0] = 84;
retmsglabel[1] = 73;
retmsglabel[2] = 68;
return query_id( "TID request", j2kfilename, retmsglabel);
}
public String query_id( String reqmsghead, String j2kfilename, int[] retmsglabel)
{
String id = null;
try{
Socket imgdecSocket = new Socket( hostname, portNo);
DataOutputStream os = new DataOutputStream( imgdecSocket.getOutputStream());
DataInputStream is = new DataInputStream( imgdecSocket.getInputStream());
byte []header = new byte[4];
os.writeBytes( reqmsghead + "\n");
os.writeBytes( j2kfilename + "\n");
read_stream( is, header, 4);
if( header[0] == retmsglabel[0] && header[1] == retmsglabel[1] && header[2] == retmsglabel[2]){
int length = header[3]&0xff;
if( length > 0){
byte []iddata = new byte[ length];
read_stream( is, iddata, length);
id = new String( iddata);
}
}
else
System.err.println("Error in query_id("+ reqmsghead + "), wrong to start with " + header);
}
catch (UnknownHostException e) {
System.err.println("Trying to connect to unknown host: " + e);
} catch (IOException e) {
System.err.println("IOException: " + e);
}
return id;
}
public java.awt.Dimension query_imagesize( String cid, String tid)
{
java.awt.Dimension dim = null;
try{
Socket imgdecSocket = new Socket( hostname, portNo);
DataOutputStream os = new DataOutputStream( imgdecSocket.getOutputStream());
DataInputStream is = new DataInputStream( imgdecSocket.getInputStream());
byte []header = new byte[3];
os.writeBytes( "SIZ request\n");
if( tid == null)
os.writeBytes( "0\n");
else
os.writeBytes( tid + "\n");
if( cid == null)
os.writeBytes( "0\n");
else
os.writeBytes( cid + "\n");
read_stream( is, header, 3);
if( header[0] == 83 && header[1] == 73 && header[2] == 90){
byte []data = new byte[ 3];
read_stream( is, data, 3);
int w = (data[0]&0xff)<<16 | (data[1]&0xff)<<8 | (data[2]&0xff);
read_stream( is, data, 3);
int h = (data[0]&0xff)<<16 | (data[1]&0xff)<<8 | (data[2]&0xff);
dim = new java.awt.Dimension( w, h);
}
else
System.err.println("Error in query_imagesize("+ cid + ", " + tid + "), wrong to start with " + header);
}
catch (UnknownHostException e) {
System.err.println("Trying to connect to unknown host: " + e);
} catch (IOException e) {
System.err.println("IOException: " + e);
}
return dim;
}
private static void read_stream( DataInputStream is, byte []stream, int length)
{
int remlen = length;
int off = 0;
try{
while( remlen > 0){
int redlen = is.read( stream, off, remlen);
if( redlen == -1){
System.err.println(" failed to read_stream()");
break;
}
off += redlen;
remlen -= redlen;
}
} catch (IOException e) {
System.err.println("IOException: " + e);
}
}
public void destroy_cid( String cid)
{
try{
Socket imgdecSocket = new Socket( hostname, portNo);
DataOutputStream os = new DataOutputStream( imgdecSocket.getOutputStream());
DataInputStream is = new DataInputStream( imgdecSocket.getInputStream());
os.writeBytes("CID destroy\n");
os.writeBytes( cid + "\n");
byte signal = is.readByte();
if( signal == 0)
System.err.println(" failed");
} catch (UnknownHostException e) {
System.err.println("Trying to connect to unknown host: " + e);
} catch (IOException e) {
System.err.println("IOException: " + e);
}
}
}