MultiLogDeliveryCallback.java

/*
 * Copyright 2014-2016 CyberVision, Inc.
 *
 * 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 org.kaaproject.kaa.server.operations.service.akka.messages.core.logs;

import akka.actor.ActorRef;

import java.util.concurrent.atomic.AtomicInteger;

public class MultiLogDeliveryCallback extends AbstractActorCallback {

  private final AtomicInteger appendersCount;

  /**
   * Instantiates a new actor log delivery callback.
   *
   * @param actor          the actor
   * @param requestId      the request id
   * @param appendersCount the count of appenders that need to confirm delivery
   */
  public MultiLogDeliveryCallback(ActorRef actor, int requestId, int appendersCount) {
    super(actor, requestId);
    this.appendersCount = new AtomicInteger(appendersCount);
  }

  /*
   * (non-Javadoc)
   *
   * @see
   * org.kaaproject.kaa.server.common.log.shared.appender.LogDeliveryCallback
   * #onSuccess()
   */
  @Override
  public void onSuccess() {
    if (appendersCount.decrementAndGet() == 0) {
      sendSuccessToEndpoint();
    }
  }
}