import java.util.Random;
import org.zeromq.ZMQ;
import org.zeromq.ZMQ.Context;
import org.zeromq.ZMQ.Socket;
//
// Lazy Pirate server
// Binds REQ socket to tcp://*:5555
// Like hwserver except:
// - echoes request as-is
// - randomly runs slowly, or exits to simulate a crash.
//
public class lpserver
{
public static void main(String[] argv) throws Exception
{
Random rand = new Random(System.nanoTime());
Context context = ZMQ.context(1);
Socket server = context.socket(ZMQ.REP);
server.bind("tcp://*:5555");
int cycles = 0;
while (true) {
String request = server.recvStr();
cycles++;
// Simulate various problems, after a few cycles
if (cycles > 3 && rand.nextInt(3) == 0) {
System.out.println("I: simulating a crash");
break;
} else if (cycles > 3 && rand.nextInt(3) == 0) {
System.out.println("I: simulating CPU overload");
Thread.sleep(2000);
}
System.out.printf("I: normal request (%s)\n", request);
Thread.sleep(1000); // Do some heavy work
server.send(request);
}
server.close();
context.term();
}
}