| /* |
| * 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.geode.internal.cache.wan; |
| |
| import java.util.List; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import org.apache.geode.cache.asyncqueue.AsyncEvent; |
| import org.apache.geode.cache.asyncqueue.AsyncEventListener; |
| |
| public class WaitingAsyncEventListener implements AsyncEventListener { |
| |
| private final CountDownLatch latch = new CountDownLatch(1); |
| |
| private final AtomicInteger numberOfEvents = new AtomicInteger(); |
| |
| @Override |
| public boolean processEvents(List<AsyncEvent> events) { |
| try { |
| waitToStartProcessingEvents(); |
| } catch (InterruptedException e) { |
| throw new RuntimeException("WaitingAsyncEventListener processEvents was interrupted"); |
| } |
| for (AsyncEvent event : events) { |
| process(event); |
| } |
| return true; |
| } |
| |
| private void process(AsyncEvent event) { |
| incrementTotalEvents(); |
| } |
| |
| private void waitToStartProcessingEvents() throws InterruptedException { |
| this.latch.await(); |
| } |
| |
| public void startProcessingEvents() { |
| this.latch.countDown(); |
| } |
| |
| private int incrementTotalEvents() { |
| return this.numberOfEvents.incrementAndGet(); |
| } |
| |
| public int getTotalEvents() { |
| return this.numberOfEvents.get(); |
| } |
| |
| @Override |
| public void close() {} |
| } |