Java tutorial
/** * Copyright (c) Acroquest Technology Co, Ltd. All Rights Reserved. * Please read the associated COPYRIGHTS file for more details. * * THE SOFTWARE IS PROVIDED BY Acroquest Technolog Co., Ltd., * WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDER BE LIABLE FOR ANY * CLAIM, DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING * OR DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. */ package acromusashi.stream.component.rabbitmq; import org.springframework.amqp.rabbit.core.ChannelCallback; import com.rabbitmq.client.Channel; /** * RabbitMQ??<br> * <br> * ?? * * @author otoda */ public class QueueSizeCallBack implements ChannelCallback<Integer> { /** ?? */ private String queueName; /** * ?????? * * @param queueName ?? */ public QueueSizeCallBack(String queueName) { this.queueName = queueName; } /** * {@inheritDoc} */ @Override public Integer doInRabbit(Channel channel) throws Exception { return channel.queueDeclarePassive(this.queueName).getMessageCount(); } }