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ClientActorPropsFactory.java
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ClientActorPropsFactory.java
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/*
* Copyright (c) 2017 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.connectivity.service.messaging;
import static org.eclipse.ditto.base.model.common.ConditionChecker.checkNotNull;
import org.eclipse.ditto.base.model.headers.DittoHeaders;
import org.eclipse.ditto.connectivity.model.Connection;
import org.eclipse.ditto.internal.utils.extension.DittoExtensionPoint;
import org.eclipse.ditto.internal.utils.extension.DittoExtensionIds;
import com.typesafe.config.Config;
import org.apache.pekko.actor.ActorRef;
import org.apache.pekko.actor.ActorSystem;
import org.apache.pekko.actor.Props;
/**
* Creates actor {@link Props} based on the given {@link Connection}.
*/
public interface ClientActorPropsFactory extends DittoExtensionPoint {
/**
* Create actor {@link Props} for a connection.
*
* @param connection the connection.
* @param commandForwarderActor the actor used to send signals into the ditto cluster..
* @param connectionActor the connectionPersistenceActor which creates this client.
* @param actorSystem the actorSystem.
* @param dittoHeaders Ditto headers of the command that caused the client actors to be created.
* @return the actor props
*/
Props getActorPropsForType(Connection connection,
ActorRef commandForwarderActor,
ActorRef connectionActor,
ActorSystem actorSystem,
DittoHeaders dittoHeaders,
Config connectivityConfigOverwrites);
/**
* Loads the implementation of {@code ClientActorPropsFactory} which is configured for the
* {@code ActorSystem}.
*
* @param actorSystem the actorSystem in which the {@code ClientActorPropsFactory} should be loaded.
* @param config the configuration of this extension.
* @return the {@code ClientActorPropsFactory} implementation.
* @throws NullPointerException if {@code actorSystem} is {@code null}.
*/
static ClientActorPropsFactory get(final ActorSystem actorSystem, final Config config) {
checkNotNull(actorSystem, "actorSystem");
checkNotNull(config, "config");
final var extensionIdConfig = ExtensionId.computeConfig(config);
return DittoExtensionIds.get(actorSystem)
.computeIfAbsent(extensionIdConfig, ExtensionId::new)
.get(actorSystem);
}
final class ExtensionId extends DittoExtensionPoint.ExtensionId<ClientActorPropsFactory> {
private static final String CONFIG_KEY = "client-actor-props-factory";
private ExtensionId(final ExtensionIdConfig<ClientActorPropsFactory> extensionIdConfig) {
super(extensionIdConfig);
}
static ExtensionIdConfig<ClientActorPropsFactory> computeConfig(final Config config) {
return ExtensionIdConfig.of(ClientActorPropsFactory.class, config, CONFIG_KEY);
}
@Override
protected String getConfigKey() {
return CONFIG_KEY;
}
}
}