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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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
*
* 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 org.apache.spark.streaming.api.java
import scala.collection.JavaConverters._
import org.apache.spark.streaming.scheduler._
/**
* A wrapper to convert a [[JavaStreamingListener]] to a [[StreamingListener]].
*/
private[streaming] class JavaStreamingListenerWrapper(javaStreamingListener: JavaStreamingListener)
extends StreamingListener {
private def toJavaReceiverInfo(receiverInfo: ReceiverInfo): JavaReceiverInfo = {
JavaReceiverInfo(
receiverInfo.streamId,
receiverInfo.name,
receiverInfo.active,
receiverInfo.location,
receiverInfo.executorId,
receiverInfo.lastErrorMessage,
receiverInfo.lastError,
receiverInfo.lastErrorTime
)
}
private def toJavaStreamInputInfo(streamInputInfo: StreamInputInfo): JavaStreamInputInfo = {
JavaStreamInputInfo(
streamInputInfo.inputStreamId,
streamInputInfo.numRecords: Long,
streamInputInfo.metadata.asJava,
streamInputInfo.metadataDescription.orNull
)
}
private def toJavaOutputOperationInfo(
outputOperationInfo: OutputOperationInfo): JavaOutputOperationInfo = {
JavaOutputOperationInfo(
outputOperationInfo.batchTime,
outputOperationInfo.id,
outputOperationInfo.name,
outputOperationInfo.description: String,
outputOperationInfo.startTime.getOrElse(-1),
outputOperationInfo.endTime.getOrElse(-1),
outputOperationInfo.failureReason.orNull
)
}
private def toJavaBatchInfo(batchInfo: BatchInfo): JavaBatchInfo = {
JavaBatchInfo(
batchInfo.batchTime,
batchInfo.streamIdToInputInfo.mapValues(toJavaStreamInputInfo(_)).asJava,
batchInfo.submissionTime,
batchInfo.processingStartTime.getOrElse(-1),
batchInfo.processingEndTime.getOrElse(-1),
batchInfo.schedulingDelay.getOrElse(-1),
batchInfo.processingDelay.getOrElse(-1),
batchInfo.totalDelay.getOrElse(-1),
batchInfo.numRecords,
batchInfo.outputOperationInfos.mapValues(toJavaOutputOperationInfo(_)).asJava
)
}
override def onStreamingStarted(streamingStarted: StreamingListenerStreamingStarted): Unit = {
javaStreamingListener.onStreamingStarted(
new JavaStreamingListenerStreamingStarted(streamingStarted.time))
}
override def onReceiverStarted(receiverStarted: StreamingListenerReceiverStarted): Unit = {
javaStreamingListener.onReceiverStarted(
new JavaStreamingListenerReceiverStarted(toJavaReceiverInfo(receiverStarted.receiverInfo)))
}
override def onReceiverError(receiverError: StreamingListenerReceiverError): Unit = {
javaStreamingListener.onReceiverError(
new JavaStreamingListenerReceiverError(toJavaReceiverInfo(receiverError.receiverInfo)))
}
override def onReceiverStopped(receiverStopped: StreamingListenerReceiverStopped): Unit = {
javaStreamingListener.onReceiverStopped(
new JavaStreamingListenerReceiverStopped(toJavaReceiverInfo(receiverStopped.receiverInfo)))
}
override def onBatchSubmitted(batchSubmitted: StreamingListenerBatchSubmitted): Unit = {
javaStreamingListener.onBatchSubmitted(
new JavaStreamingListenerBatchSubmitted(toJavaBatchInfo(batchSubmitted.batchInfo)))
}
override def onBatchStarted(batchStarted: StreamingListenerBatchStarted): Unit = {
javaStreamingListener.onBatchStarted(
new JavaStreamingListenerBatchStarted(toJavaBatchInfo(batchStarted.batchInfo)))
}
override def onBatchCompleted(batchCompleted: StreamingListenerBatchCompleted): Unit = {
javaStreamingListener.onBatchCompleted(
new JavaStreamingListenerBatchCompleted(toJavaBatchInfo(batchCompleted.batchInfo)))
}
override def onOutputOperationStarted(
outputOperationStarted: StreamingListenerOutputOperationStarted): Unit = {
javaStreamingListener.onOutputOperationStarted(new JavaStreamingListenerOutputOperationStarted(
toJavaOutputOperationInfo(outputOperationStarted.outputOperationInfo)))
}
override def onOutputOperationCompleted(
outputOperationCompleted: StreamingListenerOutputOperationCompleted): Unit = {
javaStreamingListener.onOutputOperationCompleted(
new JavaStreamingListenerOutputOperationCompleted(
toJavaOutputOperationInfo(outputOperationCompleted.outputOperationInfo)))
}
}
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