io.zeebe.logstreams.impl.service.LogWriteBufferSubscriptionService Maven / Gradle / Ivy

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/*
 * Copyright © 2017 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.zeebe.logstreams.impl.service;

import io.zeebe.dispatcher.Dispatcher;
import io.zeebe.dispatcher.Subscription;
import io.zeebe.servicecontainer.*;
import io.zeebe.util.sched.future.ActorFuture;

public class LogWriteBufferSubscriptionService implements Service
{
    private final Injector logWritebufferInjector = new Injector<>();

    private final String subscriptionName;

    private ActorFuture subscriptionFuture;

    public LogWriteBufferSubscriptionService(String subscriptionName)
    {
        this.subscriptionName = subscriptionName;
    }

    @Override
    public void start(ServiceStartContext startContext)
    {
        final Dispatcher logBuffer = logWritebufferInjector.getValue();

        subscriptionFuture = logBuffer.openSubscriptionAsync(subscriptionName);
        startContext.async(subscriptionFuture);
    }

    @Override
    public void stop(ServiceStopContext stopContext)
    {
        final Dispatcher logBuffer = logWritebufferInjector.getValue();

        stopContext.async(logBuffer.closeSubscriptionAsync(subscriptionFuture.join()));
    }

    @Override
    public Subscription get()
    {
        return subscriptionFuture.join();
    }

    public Injector getWritebufferInjector()
    {
        return logWritebufferInjector;
    }

}