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CustomGatewayRootExecutor.java
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CustomGatewayRootExecutor.java
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/*
* Copyright (c) 2022 Contributors to the Eclipse Foundation
*
* See the NOTICE file(s) distributed with this work for additional
* information regarding copyright ownership.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.ditto.gateway.service.starter;
import static org.eclipse.ditto.base.model.common.ConditionChecker.checkNotNull;
import org.eclipse.ditto.base.service.DittoExtensionPoint;
import org.eclipse.ditto.gateway.service.util.config.DittoGatewayConfig;
import org.eclipse.ditto.internal.utils.config.DefaultScopedConfig;
import akka.actor.ActorContext;
import akka.actor.ActorSystem;
/**
* Executor for custom code in gateway root. Can be used i.e. to start custom actors.
*
* @since 3.0.0
*/
public abstract class CustomGatewayRootExecutor extends DittoExtensionPoint {
/**
* @param actorSystem the actor system in which to load the extension.
*/
protected CustomGatewayRootExecutor(final ActorSystem actorSystem) {
super(actorSystem);
}
/**
* Execute custom custom code.
* @param actorContext the context of the {@code GatewayRootActor}.
*/
public abstract void execute(ActorContext actorContext);
/**
* Loads the implementation of {@code CustomGatewayRootExecutor} which is configured for the
* {@code ActorSystem}.
*
* @param actorSystem the actorSystem in which the {@code CustomGatewayRootExecutor} should be loaded.
* @return the {@code CustomGatewayRootExecutor} implementation.
* @throws NullPointerException if {@code actorSystem} is {@code null}.
*/
public static CustomGatewayRootExecutor get(final ActorSystem actorSystem) {
checkNotNull(actorSystem, "actorSystem");
final var implementation = DittoGatewayConfig.of(DefaultScopedConfig.dittoScoped(
actorSystem.settings().config())).getCustomRootExecutor();
return new ExtensionId<>(implementation, CustomGatewayRootExecutor.class).get(actorSystem);
}
}