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/*
 * 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 com.wichell.framework.rocketmq.example.transaction;

import java.util.List;

import org.apache.rocketmq.client.consumer.DefaultMQPushConsumer;
import org.apache.rocketmq.client.consumer.listener.ConsumeConcurrentlyContext;
import org.apache.rocketmq.client.consumer.listener.ConsumeConcurrentlyStatus;
import org.apache.rocketmq.client.consumer.listener.MessageListenerConcurrently;
import org.apache.rocketmq.client.exception.MQClientException;
import org.apache.rocketmq.common.consumer.ConsumeFromWhere;
import org.apache.rocketmq.common.message.MessageExt;



/**
 * This example shows how to subscribe and consume messages using providing {@link DefaultMQPushConsumer}.
 */
public class TransactionConsumer {
	//private static Logger logger = LoggerFactory.getLogger(CommonConsumer.class);

    public static void main(String[] args) throws InterruptedException, MQClientException {

        /*
         * Instantiate with specified consumer group name.
         */
      DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("transactionConsumer");

        /*
         * Specify name server addresses.
         * 
         *
         * Alternatively, you may specify name server addresses via exporting environmental variable: NAMESRV_ADDR
         * 
         * {@code
         * consumer.setNamesrvAddr("name-server1-ip:9876;name-server2-ip:9876");
         * }
         * 
         */
        consumer.setNamesrvAddr("10.138.61.59:9876;10.138.61.57:9876");
        /*
         * Specify where to start in case the specified consumer group is a brand new one.
         */
        consumer.setConsumeFromWhere(ConsumeFromWhere.CONSUME_FROM_LAST_OFFSET);

        /*
         * Subscribe one more more topics to consume.
         */
        consumer.subscribe("TopicTransaction", "*");
  
        /*
         *  Register callback to execute on arrival of messages fetched from brokers.
         */
        consumer.registerMessageListener(new MessageListenerConcurrently() {

            @Override
            public ConsumeConcurrentlyStatus consumeMessage(List msgs,
               ConsumeConcurrentlyContext context) {
            	try{
                for(MessageExt msg : msgs){
                System.out.println(" Receive New Transaction Messages: " + msg);
                }
            	}catch(Exception e){
            		e.printStackTrace();
            	}
                return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
            		
          /*   MessageExt msg = msgs.get(0);
            try {
                String topic = msg.getTopic();
                String msgBody = new String(msg.getBody(),"utf-8");
                String tags = msg.getTags();
                System.out.println("get massage : " + " topic : " + topic + " tags : " + tags + " msg : " +msgBody);
            }catch (Exception e){
                e.printStackTrace();
                return ConsumeConcurrentlyStatus.CONSUME_SUCCESS; //requeue 一会再消费
            }
            	 return ConsumeConcurrentlyStatus.CONSUME_SUCCESS; // response broker ack
*/			
           
            }
        });

        /*
         *  Launch the consumer instance.
         */
        consumer.start();

        System.out.printf("Common Consumer Started.%n");
    }
}