com.datamountaineer.streamreactor.connect.blockchain.source.BlockchainSourceConnector.scala Maven / Gradle / Ivy
/*
* Copyright 2017 Datamountaineer.
*
* Licensed 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.datamountaineer.streamreactor.connect.blockchain.source
import java.util
import com.datamountaineer.streamreactor.connect.blockchain.config.BlockchainConfig
import com.typesafe.scalalogging.slf4j.StrictLogging
import org.apache.kafka.common.config.ConfigDef
import org.apache.kafka.connect.connector.Task
import org.apache.kafka.connect.source.SourceConnector
import scala.collection.JavaConversions._
class BlockchainSourceConnector extends SourceConnector with StrictLogging {
private var configProps: Option[util.Map[String, String]] = None
/**
* Defines the source class to use
*
* @return
*/
override def taskClass(): Class[_ <: Task] = classOf[BlockchainSourceTask]
/**
* Set the configuration for each work and determine the split.
*
* @param maxTasks The max number of task workers be can spawn.
* @return a List of configuration properties per worker.
**/
override def taskConfigs(maxTasks: Int): util.List[util.Map[String, String]] = Seq(configProps.get)
/**
* Start the sink and set to configuration.
*
* @param props A map of properties for the connector and worker.
**/
override def start(props: util.Map[String, String]): Unit = {
logger.info(s"Starting Blockchain source task with ${props.toString}.")
configProps = Some(props)
}
override def stop(): Unit = {}
/**
* Gets the version of this sink.
*
* @return
*/
override def version(): String = getClass.getPackage.getImplementationVersion
override def config(): ConfigDef = BlockchainConfig.config
}