本文整理汇总了Java中org.apache.storm.kafka.bolt.mapper.FieldNameBasedTupleToKafkaMapper类的典型用法代码示例。如果您正苦于以下问题：Java FieldNameBasedTupleToKafkaMapper类的具体用法？Java FieldNameBasedTupleToKafkaMapper怎么用？Java FieldNameBasedTupleToKafkaMapper使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
FieldNameBasedTupleToKafkaMapper类属于org.apache.storm.kafka.bolt.mapper包，在下文中一共展示了FieldNameBasedTupleToKafkaMapper类的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: createKafkaBolt
import org.apache.storm.kafka.bolt.mapper.FieldNameBasedTupleToKafkaMapper; //导入依赖的package包/类
/**
* Creates Kafka bolt.
*
* @param topic Kafka topic
* @return {@link KafkaBolt}
*/
protected KafkaBolt createKafkaBolt(final String topic) {
return new KafkaBolt<String, String>()
.withProducerProperties(kafkaProperties)
.withTopicSelector(new DefaultTopicSelector(topic))
.withTupleToKafkaMapper(new FieldNameBasedTupleToKafkaMapper<>());
}
示例2: KafkaProducer
import org.apache.storm.kafka.bolt.mapper.FieldNameBasedTupleToKafkaMapper; //导入依赖的package包/类
/**
* Constructor.
* @param topic The topic to produce to.
*/
@SuppressWarnings("unchecked")
public KafkaProducer(String topic, Properties properties) {
this();
withTopicSelector(new DefaultTopicSelector(topic));
withTupleToKafkaMapper(new FieldNameBasedTupleToKafkaMapper("key", "message"));
withProducerProperties(properties);
}
示例3: getKafkaBolt
import org.apache.storm.kafka.bolt.mapper.FieldNameBasedTupleToKafkaMapper; //导入依赖的package包/类
protected KafkaBolt<String,String> getKafkaBolt() {
Properties props = new Properties();
props.put("bootstrap.servers", "localhost:6667");
props.put("acks", "1");
props.put("key.serializer", "org.apache.kafka.common.serialization.StringSerializer");
props.put("value.serializer", "org.apache.kafka.common.serialization.StringSerializer");
final KafkaBolt bolt = new KafkaBolt()
.withProducerProperties(props)
.withTopicSelector(new DefaultTopicSelector(RESULT_TOPIC))
.withTupleToKafkaMapper(new FieldNameBasedTupleToKafkaMapper<>());
return bolt;
}
示例4: buildProducerTopology
import org.apache.storm.kafka.bolt.mapper.FieldNameBasedTupleToKafkaMapper; //导入依赖的package包/类
/**
* A topology that produces random sentences using {@link RandomSentenceSpout} and
* publishes the sentences using a KafkaBolt to kafka "test" topic.
*
* @return the storm topology
*/
public StormTopology buildProducerTopology(Properties prop) {
TopologyBuilder builder = new TopologyBuilder();
builder.setSpout("spout", new RandomSentenceSpout(), 2);
/**
* The output field of the RandomSentenceSpout ("word") is provided as the boltMessageField
* so that this gets written out as the message in the kafka topic.
*/
KafkaBolt bolt = new KafkaBolt().withProducerProperties(prop)
.withTopicSelector(new DefaultTopicSelector("test"))
.withTupleToKafkaMapper(new FieldNameBasedTupleToKafkaMapper("key", "word"));
builder.setBolt("forwardToKafka", bolt, 1).shuffleGrouping("spout");
return builder.createTopology();
}
示例5: declareOutputFields
import org.apache.storm.kafka.bolt.mapper.FieldNameBasedTupleToKafkaMapper; //导入依赖的package包/类
@Override
public void declareOutputFields(OutputFieldsDeclarer declarer) {
declarer.declare(new Fields(FieldNameBasedTupleToKafkaMapper.BOLT_KEY,
FieldNameBasedTupleToKafkaMapper.BOLT_MESSAGE));
}