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2.10 WebClient: Talking to Web Servers Interactively

59

SocketUtil

SocketUtil

 is a simple utility class that simplifies creating some of the

streams used in network programming. It is used by 

NetworkClient

 and

HttpClient

. 

Listing 2.15 SocketUtil.java 

import java.net.*;

import java.io.*;

/** A shorthand way to create BufferedReaders and

 *  PrintWriters associated with a Socket.

 */

public class SocketUtil {

  /** Make a BufferedReader to get incoming data. */

  public static BufferedReader getReader(Socket s)

      throws IOException {

    return(new BufferedReader(

     new InputStreamReader(s.getInputStream())));

  }

  /** Make a PrintWriter to send outgoing data.

   *  This PrintWriter will automatically flush stream

   *  when println is called.

   */

  public static PrintWriter getWriter(Socket s)

      throws IOException {

    // 2nd argument of true means autoflush

    return(new PrintWriter(s.getOutputStream(), true));

  }

}

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