com.tomtom.james.common.api.publisher.EventPublisherSupplier Maven / Gradle / Ivy

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/*
 * Copyright 2017 TomTom International B.V.
 *
 * 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 com.tomtom.james.common.api.publisher;

import java.util.Optional;

public class EventPublisherSupplier {

    private static EventPublisher registeredPublisher;

    public static Optional get() {
        return Optional.ofNullable(registeredPublisher);
    }

    public static EventPublisher register(EventPublisher eventPublisher) {
        registeredPublisher = eventPublisher;
        return eventPublisher;
    }
}