eu.lucaventuri.fibry.SinkActor Maven / Gradle / Ivy

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package eu.lucaventuri.fibry;

import eu.lucaventuri.common.Exceptions;
import eu.lucaventuri.common.RunnableEx;
import eu.lucaventuri.common.Stateful;

import java.util.concurrent.Executor;
import java.util.function.Consumer;

/**
 * A Sink Actor is an actor that is not processing any messages, though it can run code. In practice, this is an executor.
 */
public interface SinkActor extends SinkActorSingleTask, Executor {
    public void execAsync(Runnable worker);

    public boolean execAsyncTimeout(Runnable worker, int timeoutMs);

    @Override
    /** Executing a command on a bounded queue will now wait forever instead of throwing an exception; this allow the caller code (e.g. producer) to slow-down */
    default public void execute(Runnable command) {
        execAsyncTimeout(command, Integer.MAX_VALUE);
    }

    public void execAsyncStateful(Consumer> worker);

    default public  void execAsyncEx(RunnableEx worker) {
        execAsync(Exceptions.silentRunnable(worker));
    }

    public void execAsyncState(Consumer worker);

    public void execAndWaitState(Consumer worker);

    /**
     * Queue a request to exit, that will be processed after all the messages currently in the queue
     */
    default boolean sendPoisonPill() {
        try {
            execAsync(this::askExit);
            return true;
        } catch (IllegalStateException e) {
            return false;
        }
    }
}