commafeed/commafeed-server/src/main/java/com/commafeed/backend/task/ScheduledTask.java

package com.commafeed.backend.task;

import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

import lombok.extern.slf4j.Slf4j;

@Slf4j
public abstract class ScheduledTask {
	protected abstract void run();

	protected abstract long getInitialDelay();

	protected abstract long getPeriod();

	protected abstract TimeUnit getTimeUnit();

	public void register(ScheduledExecutorService executor) {
		Runnable runnable = () -> {
			try {
				ScheduledTask.this.run();
			} catch (Exception e) {
				log.error(e.getMessage(), e);
			}
		};
		log.debug("registering task {} for execution every {} {}, starting in {} {}", getClass().getSimpleName(), getPeriod(),
				getTimeUnit(), getInitialDelay(), getTimeUnit());
		executor.scheduleWithFixedDelay(runnable, getInitialDelay(), getPeriod(), getTimeUnit());
	}
}