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