package org.skywalking.apm.collector.actor.selector;
import org.skywalking.apm.collector.actor.AbstractWorker;
import org.skywalking.apm.collector.actor.WorkerRef;
import java.util.List;
/**
* The <code>WorkerSelector</code> should be implemented by any class whose instances
* are intended to provide select a {@link WorkerRef} from a {@link WorkerRef} list.
* <p>
* Actually, the <code>WorkerRef</code> is designed to provide a routing ability in the collector cluster
*
* @author pengys5
* @since v3.0-2017
*/
public interface WorkerSelector<T extends WorkerRef> {
/**
* select a {@link WorkerRef} from a {@link WorkerRef} list.
*
* @param members given {@link WorkerRef} list, which size is greater than 0;
* @param message the {@link AbstractWorker} is going to send.
* @return the selected {@link WorkerRef}
*/
T select(List<T> members, Object message);
}