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

class LineChild extends Thread {
  Socket RemoteHostConnect ;  
  SynchCount count ;
  PrintStream logOut ;
  String logPrefix ;

  public LineChild( Socket s, SynchCount c, PrintStream p) {
    RemoteHostConnect = s ;
    count = c ;
    logOut = p ;
  }
 
 
  // It's not the greatest format,
  // but it's what I'm using in the C server

  private String makeLogPrefix () {
    String p ;
    int i ;

    p = RemoteHostConnect.getInetAddress().toString() ;
    i = p.indexOf((int) '/') ;
    if (i != -1 )
       p = p.substring(0, i) ;
    p = p + " (" + Integer.toString(RemoteHostConnect.getPort())
           + ")" + "                                                  " ;
    p = p.substring(0, 38) + " -- " ;
    return(p) ;
  }

  private String makeLogString(String s) {
    String t ;
    int i = s.length() ;
    if (i>20)
      t = s.substring(i-20) ;
    else
      t = s ;
    return ("[" + t + "]") ;
  }

  private void printLogRecord(String s) {
    logOut.println( logPrefix + s) ;
    logOut.flush() ;
  }

  public void run() {

    BufferedReader RemoteInput ;
    PrintWriter RemoteOutput ;

    logPrefix = makeLogPrefix() ;

    printLogRecord("connected (" + getName() + ")") ;

    try {
      RemoteInput  = new BufferedReader(
			 new InputStreamReader(
			     RemoteHostConnect.getInputStream())) ;
      RemoteOutput = new PrintWriter(RemoteHostConnect.getOutputStream(),true);
    } catch ( IOException ioe ) {
      printLogRecord("Cannot create I/O streams" + ioe.toString()) ;
      return ;
    }

    try {
      String inString = RemoteInput.readLine() ;
      while (inString != null) {
	printLogRecord(makeLogString(inString)) ;
	RemoteOutput.println(count.Increment()) ;
	inString = RemoteInput.readLine() ;
      }
    } catch ( IOException ioe ) {
      printLogRecord("socket exception: " + ioe.toString()) ;
      return ;
    }
    printLogRecord("socket closed (" + getName() + ")") ;
  }
}