/**
* 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 demo.jaxrs.server.simple;
import org.apache.spark.streaming.scheduler.StreamingListener;
import org.apache.spark.streaming.scheduler.StreamingListenerBatchCompleted;
import org.apache.spark.streaming.scheduler.StreamingListenerBatchStarted;
import org.apache.spark.streaming.scheduler.StreamingListenerBatchSubmitted;
import org.apache.spark.streaming.scheduler.StreamingListenerOutputOperationCompleted;
import org.apache.spark.streaming.scheduler.StreamingListenerOutputOperationStarted;
import org.apache.spark.streaming.scheduler.StreamingListenerReceiverError;
import org.apache.spark.streaming.scheduler.StreamingListenerReceiverStarted;
import org.apache.spark.streaming.scheduler.StreamingListenerReceiverStopped;
public class SparkStreamingListener implements StreamingListener {
private SparkStreamingOutput streamOutput;
private boolean batchStarted;
private long batchStartAt;
public SparkStreamingListener(SparkStreamingOutput streamOutput) {
this.streamOutput = streamOutput;
}
@Override
public void onBatchCompleted(StreamingListenerBatchCompleted event) {
System.out.println("Batch processing time in millisecs: " + (System.currentTimeMillis() - batchStartAt));
streamOutput.setSparkBatchCompleted();
}
@Override
public synchronized void onBatchStarted(StreamingListenerBatchStarted event) {
batchStarted = true;
batchStartAt = System.currentTimeMillis();
notify();
}
@Override
public void onBatchSubmitted(StreamingListenerBatchSubmitted event) {
}
@Override
public void onOutputOperationCompleted(StreamingListenerOutputOperationCompleted event) {
}
@Override
public void onOutputOperationStarted(StreamingListenerOutputOperationStarted event) {
}
@Override
public void onReceiverError(StreamingListenerReceiverError event) {
}
@Override
public void onReceiverStarted(StreamingListenerReceiverStarted event) {
}
@Override
public void onReceiverStopped(StreamingListenerReceiverStopped arg0) {
}
public SparkStreamingOutput getStreamOut() {
return streamOutput;
}
public synchronized void waitForBatchStarted() {
while (!batchStarted) {
try {
this.wait();
} catch (InterruptedException ex) {
// continue
}
}
}
}