本文整理汇总了Scala中kafka.serializer.StringEncoder类的典型用法代码示例。如果您正苦于以下问题：Scala StringEncoder类的具体用法？Scala StringEncoder怎么用？Scala StringEncoder使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了StringEncoder类的1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Scala代码示例。
示例1: send
//设置package包名称以及导入依赖的类
package it.agilelab.bigdata.wasp.core.kafka
import java.util.Properties
import it.agilelab.bigdata.wasp.core.WaspEvent
import it.agilelab.bigdata.wasp.core.WaspEvent.WaspMessageEnvelope
import it.agilelab.bigdata.wasp.core.models.configuration.{TinyKafkaConfig, KafkaConfigModel}
import kafka.producer.{DefaultPartitioner, KeyedMessage, Producer, ProducerConfig}
import kafka.serializer.StringEncoder
import kafka.server.KafkaConfig
def send(topic: String, key: K, message: V): Unit =
batchSend(topic, key, Seq(message))
def batchSend(topic: String, key: K, batch: Seq[V]): Unit = {
val messages = batch map (msg => new KeyedMessage[K, V](topic, key, msg))
producer.send(messages.toArray: _*)
}
def close(): Unit = producer.close()
}
object WaspKafkaWriter {
def createConfig(brokers: Set[String], batchSize: Int, producerType: String, serializerFqcn: String, keySerializerFqcn: String, partitionerFqcn: String): ProducerConfig = {
val props = new Properties()
props.put("metadata.broker.list", brokers.mkString(","))
props.put("serializer.class", serializerFqcn)
props.put("key.serializer.class", keySerializerFqcn)
props.put("partitioner.class", partitionerFqcn)
props.put("producer.type", producerType)
props.put("request.required.acks", "1")
props.put("batch.num.messages", batchSize.toString)
new ProducerConfig(props)
}
def defaultConfig(config: KafkaConfig): ProducerConfig =
createConfig(Set(s"${config.hostName}:${config.port}"), 100, "async", classOf[StringEncoder].getName, classOf[StringEncoder].getName, classOf[DefaultPartitioner].getName)
}