schafkopf-bot/Backend/schafkopf-client/src/main/java/org/schafkopf/HeartbeatSender.java

package org.schafkopf;

import java.util.Timer;
import java.util.TimerTask;
import org.schafkopf.SchafkopfMessage.SchafkopfBaseMessage;

/**
 * Creates an Instance of the Backend Server.
 */
public class HeartbeatSender {

  private static final int HEARTBEAT_INTERVAL = 15000; // 1 minute

  private final DedicatedServerConnection client;

  public HeartbeatSender(DedicatedServerConnection client) {
    this.client = client;
  }

  /**
   * Creates an Instance of the Backend Server.
   */
  public void start() {
    Timer timer = new Timer();
    timer.scheduleAtFixedRate(new TimerTask() {
      @Override
      public void run() {
        client.sendMessage(
            new SchafkopfBaseMessage(SchafkopfMessage.SchafkopfMessageType.HEARTBEAT_SYN));
      }
    }, HEARTBEAT_INTERVAL, HEARTBEAT_INTERVAL);
  }
}