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SearchHealthCheckingActorFactory.java
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SearchHealthCheckingActorFactory.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.thingsearch.service.starter.actors;
import java.util.LinkedHashMap;
import java.util.Map;
import org.eclipse.ditto.thingsearch.service.common.config.SearchConfig;
import org.eclipse.ditto.thingsearch.service.updater.actors.SearchUpdaterRootActor;
import org.eclipse.ditto.internal.utils.health.AbstractHealthCheckingActor;
import org.eclipse.ditto.internal.utils.health.CompositeCachingHealthCheckingActor;
import org.eclipse.ditto.internal.utils.health.SingletonStatusReporter;
import org.eclipse.ditto.internal.utils.health.config.HealthCheckConfig;
import org.eclipse.ditto.internal.utils.persistence.mongo.MongoHealthChecker;
import org.apache.pekko.actor.ActorRef;
import org.apache.pekko.actor.Props;
/**
* Provides an actor for checking and caching the health of the search service.
*/
final class SearchHealthCheckingActorFactory {
/**
* The required name of the Actor to be created in the ActorSystem.
*/
public static final String ACTOR_NAME = AbstractHealthCheckingActor.ACTOR_NAME;
private static final String PERSISTENCE_LABEL = "persistence";
private static final String BACKGROUND_SYNC_LABEL = "backgroundSync";
private SearchHealthCheckingActorFactory() {
throw new AssertionError();
}
/**
* Creates Akka configuration object Props for a health checking actor.
*
* @param searchConfig the configuration settings.
* @param backgroundSyncActorProxy proxy actor for RetrieveHealth messages to the background sync actor.
* @return the Akka configuration Props object.
*/
public static Props props(final SearchConfig searchConfig, final ActorRef backgroundSyncActorProxy) {
final Map<String, Props> childActorProps = new LinkedHashMap<>();
final HealthCheckConfig healthCheckConfig = searchConfig.getHealthCheckConfig();
final boolean healthCheckEnabled = healthCheckConfig.isEnabled();
if (healthCheckEnabled) {
childActorProps.put(PERSISTENCE_LABEL, MongoHealthChecker.props());
}
childActorProps.put(BACKGROUND_SYNC_LABEL,
SingletonStatusReporter.props(SearchUpdaterRootActor.CLUSTER_ROLE, backgroundSyncActorProxy));
return CompositeCachingHealthCheckingActor.props(childActorProps, healthCheckConfig.getInterval(),
healthCheckEnabled);
}
}