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* Copyright (c) 2014, Cloudera, Inc. All Rights Reserved.
* Cloudera, Inc. 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
* This software 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.cloudera.oryx.api.batch
import org.apache.spark.SparkContext
import org.apache.spark.rdd.RDD
import com.cloudera.oryx.api.TopicProducer
* Scala counterpart to Java BatchLayerUpdate.
* @tparam K type of key read from input topic
* @tparam M type of message read from input topic
* @tparam U type of model message written
* @since 2.0.0
trait ScalaBatchLayerUpdate[K,M,U] {
* @param sparkContext Spark context
* @param timestamp timestamp of current interval
* @param newData data that has arrived in current interval
* @param pastData all previously-known data (may be { @code null})
* @param modelDirString String representation of path where models should be output, if desired
* @param modelUpdateTopic topic to push models onto, if desired
* @since 2.0.0
def configureUpdate(sparkContext: SparkContext,
timestamp: Long,
newData: RDD[(K,M)],
pastData: RDD[(K,M)],
modelDirString: String,
modelUpdateTopic: TopicProducer[String,U]): Unit