iobounddoja.java

可以在cmwap上用socket的代码,cmwap是只能用http协议的,但这个可以帮你实现socket来连接.

/* -*-mode:java; c-basic-offset:2; -*- */
/*
Copyright (c) 2005 ymnk, JCraft,Inc. 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.

  3. The names of the authors may not be used to endorse or promote products
     derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 JCRAFT,
INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE 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.
*/

package com.jcraft.jhttptunnel;

import java.io.*;
import javax.microedition.io.*;
import com.nttdocomo.io.*;

public class IOBoundDoJa{
  OutBoundDoJa obdj=null;
  InBoundDoJa ibdj=null;
  private String sessionid=null;

  public IOBoundDoJa(){
    obdj=new OutBoundDoJa();
    ibdj=new InBoundDoJa();
  }
  public OutBound getOutBound(){return obdj;}
  public InBound getInBound(){return ibdj;}

  class OutBoundDoJa extends OutBound{
    private InputStream in=null;
    private OutputStream out=null;
    private HttpConnection con=null;
    private final byte[] _TUNNEL_DISCONNECT={(byte)0x47};

    private int count=0;
    boolean connected=false;

    public void connect() throws IOException{
//System.out.println("OutBound: connect");

      String host=getHost();
      int port=getPort();

      String uri="http://"+host+":"+port+"/index.html?crap=1"+"&count="+count;
      if(sessionid!=null){
        uri=uri+"&SESSIONID="+sessionid;
      }
//System.out.println("uri: "+uri);
      con=(HttpConnection)Connector.open(uri, Connector.READ_WRITE, true);
      count++;
      con.setRequestMethod(HttpConnection.POST);
      out=con.openOutputStream();
      sendCount=getContentLength();
    }

    public synchronized void sendData(byte[] foo, int s, int l, boolean flush) throws IOException{
//System.out.println("sendData: l="+l+" sendCount="+sendCount+" flush="+flush);
      if(foo!=null && l<=0) return;

      if(con==null){
	connect();
      }

      if(sendCount<=0){
	connect();
      }

      int retry=2;
      while(retry>0){
	try{
	  if(l>0)
	    out.write(foo, s, l);
	  sendCount-=l;

//	  if(flush){ 
	    out.close();
	    out=null;
	    try{
	      con.connect(); 
	    }
	    catch(ConnectionException e){
	      try{con.close();}catch(Exception ee){System.out.println(e);}
	      con=null;
	      if(foo==null){   // data retrieve
		connect();
                retry--;
		continue;
	      }
	      ibdj.connected=false;
              return;
	    }

	    sessionid=con.getHeaderField("x-SESSIONID");
//System.out.println("sessionid: "+sessionid);          
	    in=con.openInputStream();
	    readData();
//	  sendCount=0;

//	    return;
//	  }

	  return;
	}
	catch(IOException e){
	  connect();
	}
	retry--;
      }
    }

    private void readData() throws IOException{
      //System.out.println("readData: "+this+" con="+con+" in="+in);
      if(con!=null){
	if(out!=null){ try{out.close(); out=null;}catch(IOException e){} }
	long datalen=con.getLength();
	//System.out.println("datalen: "+datalen);
	if(in!=null){ 
	  try{
	    while(true){
	      //System.out.println("now read");
	      int c=in.read();
	      //System.out.println("c="+c);
	      if(c==-1)break;
	      while(true){
		if(ibdj.space()>=1){
		  break;
		}
		try{Thread.sleep(1000);}catch(Exception e){}
	      }
	      ibdj.push(c);
	    }
	    in.close(); in=null;
	  }
	  catch(IOException e){} 
	}
	try{con.close();}catch(Exception e){System.out.println(e);}
	con=null;
      }
    //System.out.println("close() done");
    }

    public void close() throws IOException{
      connected=false;
    }
  }

  public class InBoundDoJa extends InBound{
    private InputStream in=null;
    private HttpConnection con=null;

    boolean connected=false;
    public void connect() throws IOException{
      connected=true;
    }

    public int receiveData(byte[] buf, int s, int l) throws IOException{
//System.out.println("receiveData: buf="+buf+" l="+l);
      if(l<=0){	return -1; }
      int retry=2;
      while(connected){
	synchronized(this){
	  int bl=be-bs;
//System.out.println(" connected="+connected+" bl="+bl);
	  if(bl>0){
	    if(buf==null){
	      if(bl>l){ bl=l; } 
	      bs+=bl;
	      System.arraycopy(this.buf, bs, this.buf, 0, be-bs);
	      be=be-bs;
	      bs=0;
	      if(bl==l){
		return -1;  // ??
	      }
	      l-=bl;
	      continue;
	    }
	    if(bl>l) bl=l;
	    System.arraycopy(this.buf, bs, buf, s, bl);
	    bs+=bl;
	    System.arraycopy(this.buf, bs, this.buf, 0, be-bs);
	    be=be-bs;
	    bs=0;
	    return bl;
	  }
	}
        if(retry>0){
          retry--;
	  obdj.sendData(null, 0, 0, true);
	  obdj.readData();
//System.out.println("be-bs="+(be-bs));
	  if(be-bs>0){ continue; }

	  /*
          if(blockToRead>0){
	    try{ Thread.sleep(blockToRead); }
	    catch(Exception e){ }
            continue;
	  }
	  else if(blockToRead==0){   // non block
            return 0;
	  }
          else{
	    try{ Thread.sleep(10000); }    // block foreaver
	    catch(Exception e){ }
            retry=1; 
            continue;
	  }
	  */

	  try{ Thread.sleep(5000); }
	  catch(Exception e){ }
	  continue;

	}
	else{
          return 0;
	}
	//return 0; 
      }
      return -1;
    }

//    byte[] buf=new byte[1024];
    byte[] buf=new byte[4096];
    int bs=0;
    int be=0;
    public synchronized int space(){
      return buf.length-be;
    }
    public synchronized void push(int c){
//System.out.println("push: "+c);
      buf[bs+be]=(byte)c; be++;
//System.out.println(" be: "+be);
    }
    public void close() throws IOException{
      connected=false;
    }
  }
}