Work/java/JCHAT/SocketControl.java

import java.net.*;
import java.io.*;

public class SocketControl extends Socket
{
	public final int OkResult=220;
	public final int ErrorResult=500;
  private InputStream mInputStream=null;
  private OutputStream mOutputStream=null;
  private boolean mIsConnected=false;

  public SocketControl()
  {
  }
  public SocketControl(String strHost,int port)throws IOException
  {
    super(strHost,port);
    try{mInputStream=getInputStream();}
    catch(IOException exception){close();return;}
    try{mOutputStream=getOutputStream();}
    catch(IOException exception){close();return;}
    isConnected(true);
  }
  public SocketControl(InetAddress inetAddress,int port)throws IOException
  {
    super(inetAddress,port);
    try{mInputStream=getInputStream();}
    catch(IOException exception){close();return;}
    try{mOutputStream=getOutputStream();}
    catch(IOException exception){close();return;}
    isConnected(true);
  }
  public void closeSocket()throws IOException
  {
    isConnected(false);
    close();
  }
  public boolean isConnected()
  {
    return mIsConnected;
  }
  private void isConnected(boolean isConnected)
  {
    mIsConnected=isConnected;
  }
  public String readLine()
	{
	  byte streamByte[];
	  String strLine=new String();

    if(!isConnected())return strLine;
    strLine=new String();
    while(true)
	  {
		  streamByte=new byte[1];
		  try{mInputStream.read(streamByte);}
		  catch(IOException exception){break;}
		  if(13==streamByte[0])continue;
		  else if(10==streamByte[0])break;
		  strLine+=new String(streamByte);
	  }
	  return strLine;
	}
	public boolean writeLine(String strLine)
	{
	  if(!isConnected()||0==strLine.length())return false;
	  strLine+=new String("\r\n");
	  byte streamData[]=strLine.getBytes();
	  try{mOutputStream.write(streamData);}
	  catch(IOException exception){return false;}
	  return true;
	}
	public int getResultCode(String strLine)
	{
	  if(0==strLine.length())return 0;
	  String strResult=new String();
	  int strIndex=0;
	  while(true)
	  {
	    if(strIndex>=3)break;
	    if(' '==strLine.charAt(strIndex))break;
	    strResult+=strLine.charAt(strIndex);
	    strIndex++;
	  }
	  if(0==strResult.length())return 0;
	  return Integer.parseInt(strResult);
	}
	public String getResult(String strLine)
	{
	  String strResult=new String();
	  int strIndex=0;
	  int strLength=strLine.length();
	  if(0==strLength)return strResult;
	  while(' '!=strLine.charAt(strIndex)&&strIndex<strLength)strIndex++;
	  strIndex++;
	  if(strIndex>=strLength)return strResult;
	  while(strIndex<strLength)
	  {
	    strResult+=strLine.charAt(strIndex);
	    strIndex++;
	  }
	  return strResult;
	}
	public boolean receive(StringArray receiveStrings,StringArray responseStrings)
	{
	  boolean isInMultiLine=false;
	  boolean returnCode=true;
	  String seriesItem=new String();
	  String stringData=new String();
	  
	  receiveStrings.clear();
	  if(!isConnected())return false;
	  while(true)
	  {
	    stringData=readLine();
	    if(0==stringData.length())break;
	    if(0==receiveStrings.size())
	    {
	      seriesItem=stringData.substring(0,3);
	      if(!isInResponse(seriesItem,responseStrings))
	      {
	        returnCode=false;
	        receiveStrings.insert(stringData);
	        break;
	      }
	      if('-'==stringData.charAt(3))isInMultiLine=true;
	    }
	    if(0!=receiveStrings.size()&&isInMultiLine&&'-'!=stringData.charAt(3)&&stringData.substring(0,3)==seriesItem)
	    {
	      receiveStrings.insert(stringData);
	      break;
	    }
      receiveStrings.insert(stringData);
      if(!isInMultiLine)break;
	  }
	  return returnCode;
	}
	public boolean receive(StringArray receiveStrings)
	{
	  boolean isInMultiLine=false;
	  boolean returnCode=false;
	  String seriesItem=new String();
	  String stringData=new String();
	  
	  receiveStrings.clear();
	  if(!isConnected())return false;
	  while(true)
	  {
	    stringData=readLine();
	    if(0==stringData.length())break;
	    if(0==receiveStrings.size())
	    {
	      seriesItem=stringData.substring(0,3);
	      if('-'==stringData.charAt(3))isInMultiLine=true;
	    }
	    if(0!=receiveStrings.size()&&isInMultiLine&&'-'!=stringData.charAt(3)&&stringData.substring(0,3)==seriesItem)
	    {
	      receiveStrings.insert(stringData);
	      break;
	    }
      receiveStrings.insert(stringData);
      if(!isInMultiLine)break;
	  }
	  if(0!=receiveStrings.size())return true;
	  return false;
	}
	public boolean isInResponse(String responseString,StringArray responseStrings)
	{
	  if(0==responseString.length())return false;
	  for(int index=0;index<responseStrings.size();index++)
	  {
	    if(responseString.equals(responseStrings.getAt(index)))return true;
	  }
	  return false;
	}
	public boolean accept(int port)throws IOException
	{
	  ServerSocketControl serverSocketControl=null;
	  
	  try{serverSocketControl=new ServerSocketControl(port);}
	  catch(IOException exception){return false;}
	  try{serverSocketControl.accept(this);}
	  catch(IOException exception){return false;}
	  try{mInputStream=getInputStream();}
	  catch(IOException exception)
	  {
	    try{closeSocket();}
	    finally{return false;}
	  }
	  try{mOutputStream=getOutputStream();}
	  catch(IOException exception)
	  {
	    try{closeSocket();}
	    finally{return false;}
	  }
	  isConnected(true);
	  return isConnected();
	}
}