1.1.30 版本中非Spring环境手动pull时 空指针异常

[Huan]

问题描述
在手动pull模式下，MetaInfoService 中的 request方法中的setRequestType方法空指针异常。原因由于第一次获取ClusterFuture时MetaInfoRequestParam对象中的reqestType为null，未被设置值。
版本关系
查阅过1.1.20和1.1.28的源码，不会导致此问题

环境配置
pom文件（部分，环境就是qmq的master分支启动的服务）

    <groupId>com.qunar.qmq</groupId>
    <artifactId>qmq-parent</artifactId>
    <version>1.1.30</version>
    <packaging>pom</packaging>

代码

public class ConsumerTest {
    private static final Logger LOG = LoggerFactory.getLogger(ConsumerTest.class);

    private static final ExecutorService executor = Executors.newFixedThreadPool(3);

    public static void main(String[] args) throws Exception {

//推荐一个应用里只创建一个实例
        MessageConsumerProvider consumer = new MessageConsumerProvider();
        consumer.setAppCode("consumer_app");
        consumer.setMetaServer("http://localhost:8080/meta/address");
        consumer.init();


        PullConsumer pullConsumer = consumer.getOrCreatePullConsumer("test.demo.qmq", "testdemo", false);
        List<Message> messages = pullConsumer.pull(10, 30);
        for(Message message : messages){

            message.ack(1000, null);
            System.out.println(message.getMessageId());

            //处理失败，则ack的第二个参数传入Throwable对象
            //message.ack(1000, new Exception("消费失败"));
        }

        System.in.read();

    }
}

出错代码
package qunar.tc.qmq.metainfoclient;
class：MetaInfoService


复现步骤

1. 拉取master指定版本的master分支
2. 执行测试代码

实际输出结果

java.lang.NullPointerException: null
	at qunar.tc.qmq.protocol.consumer.MetaInfoRequest.setRequestType(MetaInfoRequest.java:96)
	at qunar.tc.qmq.metainfoclient.MetaInfoService.request(MetaInfoService.java:128)
	at qunar.tc.qmq.metainfoclient.MetaInfoService.requestWrapper(MetaInfoService.java:114)
	at qunar.tc.qmq.broker.impl.BrokerServiceImpl.request(BrokerServiceImpl.java:180)
	at qunar.tc.qmq.broker.impl.BrokerServiceImpl.getClusterBySubject(BrokerServiceImpl.java:145)
	at qunar.tc.qmq.consumer.pull.PlainPullEntry.pull(PlainPullEntry.java:45)
	at qunar.tc.qmq.consumer.pull.DefaultPullConsumer.doPull(DefaultPullConsumer.java:126)
	at qunar.tc.qmq.consumer.pull.DefaultPullConsumer.run(DefaultPullConsumer.java:114)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at qunar.tc.qmq.concurrent.NamedThreadFactory$1.run(NamedThreadFactory.java:52)
	at java.lang.Thread.run(Thread.java:748)

简单解决方案
将 request.setRequestType(param.getRequestType());一行注释掉

[Keli]

这个问题应该已经修复了。