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TextServer.java
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TextServer.java
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package net.xmeter.echo;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.atomic.AtomicInteger;
public class TextServer {
public static AtomicInteger sessions = new AtomicInteger(0);
public void handleRequest(final Socket socket) {
ExecutorService executor = Executors.newSingleThreadExecutor();
executor.submit(new Runnable() {
@Override
public void run() {
try {
BufferedReader is = new BufferedReader(new InputStreamReader(socket.getInputStream()));
PrintWriter os = new PrintWriter(socket.getOutputStream());
while(true) {
String line = is.readLine();
if(line == null) {
System.out.println("Probably the client side closed the connection, now close me as well.");
socket.close();
break;
}
System.out.println("Received message: " + line);
os.println("Echo: " + line);
os.flush();
if("bye".equals(line)) {
break;
}
}
} catch(Exception ex) {
ex.printStackTrace();
} finally {
try {
socket.close();
int num = sessions.decrementAndGet();
System.out.println("Now totally has " + num + " of conn.");
} catch (IOException e) {
e.printStackTrace();
}
}
}
});
}
public static void main(String[] args) {
try {
ServerSocket server = new ServerSocket(4700);
while(true) {
Socket socket = server.accept();
TextServer srv = new TextServer();
srv.handleRequest(socket);
int num = sessions.incrementAndGet();
System.out.println("Received new conn, now totally has " + num + " of conn.");
}
} catch (Exception e) {
e.printStackTrace();
}
}
}