io.atomix.cluster.messaging.impl.HandlerRegistry Maven / Gradle / Ivy
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/*
* Copyright 2018-present Open Networking Foundation
* Copyright © 2020 camunda services GmbH ([email protected])
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.atomix.cluster.messaging.impl;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.function.BiConsumer;
/** Messaging handler registry. */
final class HandlerRegistry {
private final Map> handlers =
new ConcurrentHashMap<>();
/**
* Registers a message type handler.
*
* @param type the message type
* @param handler the message handler
*/
void register(final String type, final BiConsumer handler) {
handlers.put(type, handler);
}
/**
* Unregisters a message type handler.
*
* @param type the message type
*/
void unregister(final String type) {
handlers.remove(type);
}
/**
* Looks up a message type handler.
*
* @param type the message type
* @return the message handler or {@code null} if no handler of the given type is registered
*/
BiConsumer get(final String type) {
return handlers.get(type);
}
}