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CustomConnectivityCommandInterceptorProvider.java
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CustomConnectivityCommandInterceptorProvider.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.connectivity.service.messaging.validation;
import static org.eclipse.ditto.base.model.common.ConditionChecker.checkNotNull;
import org.eclipse.ditto.connectivity.model.signals.commands.ConnectivityCommandInterceptor;
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.ActorSystem;
public interface CustomConnectivityCommandInterceptorProvider extends DittoExtensionPoint {
ConnectivityCommandInterceptor getCommandInterceptor();
/**
* Loads the implementation of {@code CustomConnectivityCommandInterceptorProvider} which is configured for the
* {@code ActorSystem}.
*
* @param actorSystem the actorSystem in which the {@code CustomConnectivityCommandInterceptorProvider} should be loaded.
* @param config the configuration of this extension.
* @return the {@code CustomConnectivityCommandInterceptorProvider} implementation.
* @throws NullPointerException if {@code actorSystem} is {@code null}.
*/
static CustomConnectivityCommandInterceptorProvider 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<CustomConnectivityCommandInterceptorProvider> {
private static final String CONFIG_KEY = "custom-connectivity-command-interceptor-provider";
private ExtensionId(final ExtensionIdConfig<CustomConnectivityCommandInterceptorProvider> extensionIdConfig) {
super(extensionIdConfig);
}
static ExtensionIdConfig<CustomConnectivityCommandInterceptorProvider> computeConfig(final Config config) {
return ExtensionIdConfig.of(CustomConnectivityCommandInterceptorProvider.class, config, CONFIG_KEY);
}
@Override
protected String getConfigKey() {
return CONFIG_KEY;
}
}
}