hadoop-hdds/framework/src/test/java/org/apache/hadoop/hdds/server/events/EventHandlerStub.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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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.hadoop.hdds.server.events;

import java.util.ArrayList;
import java.util.List;

/**
 * Dummy class for testing to collect all the received events.
 */
public class EventHandlerStub<PAYLOAD> implements EventHandler<PAYLOAD> {

  private List<PAYLOAD> receivedEvents = new ArrayList<>();

  @Override
  public void onMessage(PAYLOAD payload, EventPublisher publisher) {
    receivedEvents.add(payload);
  }

  public List<PAYLOAD> getReceivedEvents() {
    return receivedEvents;
  }
}