org.springframework.integration.leader.event.DefaultLeaderEventPublisher.java Source code

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Here is the source code for org.springframework.integration.leader.event.DefaultLeaderEventPublisher.java

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/*
 * Copyright 2015-2019 the original author or authors.
 *
 * 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
 *
 *      https://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 org.springframework.integration.leader.event;

import org.springframework.context.ApplicationEventPublisher;
import org.springframework.context.ApplicationEventPublisherAware;
import org.springframework.integration.leader.Context;

/**
 * Default implementation of {@link LeaderEventPublisher}.
 *
 * @author Janne Valkealahti
 * @author Gary Russell
 * @author Glenn Renfro
 *
 */
public class DefaultLeaderEventPublisher implements LeaderEventPublisher, ApplicationEventPublisherAware {

    private ApplicationEventPublisher applicationEventPublisher;

    /**
     * Instantiates a new leader event publisher.
     */
    public DefaultLeaderEventPublisher() {
    }

    /**
     * Instantiates a new leader event publisher.
     *
     * @param applicationEventPublisher the application event publisher
     */
    public DefaultLeaderEventPublisher(ApplicationEventPublisher applicationEventPublisher) {
        this.applicationEventPublisher = applicationEventPublisher;
    }

    @Override
    public void publishOnGranted(Object source, Context context, String role) {
        if (this.applicationEventPublisher != null) {
            this.applicationEventPublisher.publishEvent(new OnGrantedEvent(source, context, role));
        }
    }

    @Override
    public void publishOnRevoked(Object source, Context context, String role) {
        if (this.applicationEventPublisher != null) {
            this.applicationEventPublisher.publishEvent(new OnRevokedEvent(source, context, role));
        }
    }

    @Override
    public void publishOnFailedToAcquire(Object source, Context context, String role) {
        if (this.applicationEventPublisher != null) {
            this.applicationEventPublisher.publishEvent(new OnFailedToAcquireMutexEvent(source, context, role));
        }
    }

    @Override
    public void setApplicationEventPublisher(ApplicationEventPublisher applicationEventPublisher) {
        this.applicationEventPublisher = applicationEventPublisher;
    }

}