flink-connector-akka/src/main/java/org/apache/flink/streaming/connectors/akka/utils/SubscribeReceiver.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.flink.streaming.connectors.akka.utils;

import akka.actor.ActorRef;

import java.io.Serializable;

/**
 * General interface used by Receiver Actor to subscribe
 * to the publisher.
 */
public class SubscribeReceiver implements Serializable {
  private static final long serialVersionUID = 1L;
  private ActorRef receiverActor;

  public SubscribeReceiver(ActorRef receiverActor) {
    this.receiverActor = receiverActor;
  }

  public void setReceiverActor(ActorRef receiverActor) {
    this.receiverActor = receiverActor;
  }

  public ActorRef getReceiverActor() {
    return receiverActor;
  }

  @Override
  public boolean equals(Object obj) {
    if (obj instanceof SubscribeReceiver) {
      SubscribeReceiver other = (SubscribeReceiver) obj;
      return other.canEquals(this) && super.equals(other)
        && receiverActor.equals(other.getReceiverActor());
    } else {
      return false;
    }
  }

  public boolean canEquals(Object obj) {
    return obj instanceof SubscribeReceiver;
  }
}