com.github.lipinskipawel.maelstrom.api.framework.EventHandler Maven / Gradle / Ivy

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package com.github.lipinskipawel.maelstrom.api.framework;

import com.github.lipinskipawel.maelstrom.api.protocol.BaseWorkload;
import com.github.lipinskipawel.maelstrom.api.protocol.Event;

import static com.github.lipinskipawel.maelstrom.internal.JsonSupport.writeEvent;

/**
 * Every class that wishes to handle maelstrom workload must extend this class.
 *
 * @param  type of workload
 */
public abstract class EventHandler {

    /**
     * Clients will receive maelstrom events through this method.
     *
     * @param event from maelstrom cluster
     */
    public abstract void handle(Event event);

    /**
     * Sends an plain event to maelstrom cluster.
     *
     * @param event event that must be sent
     */
    public void send(Event event) {
        System.out.println(parse(event));
        System.out.flush();
    }

    private String parse(Event event) {
        return writeEvent(event);
    }
}