diff options
Diffstat (limited to 'dcae-analytics-cdap-plugins/src/main/java/org/onap/dcae/apod/analytics/cdap/plugins/batch/sink/dmaap/DMaaPMRRecordWriter.java')
-rw-r--r-- | dcae-analytics-cdap-plugins/src/main/java/org/onap/dcae/apod/analytics/cdap/plugins/batch/sink/dmaap/DMaaPMRRecordWriter.java | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/dcae-analytics-cdap-plugins/src/main/java/org/onap/dcae/apod/analytics/cdap/plugins/batch/sink/dmaap/DMaaPMRRecordWriter.java b/dcae-analytics-cdap-plugins/src/main/java/org/onap/dcae/apod/analytics/cdap/plugins/batch/sink/dmaap/DMaaPMRRecordWriter.java new file mode 100644 index 0000000..a123edd --- /dev/null +++ b/dcae-analytics-cdap-plugins/src/main/java/org/onap/dcae/apod/analytics/cdap/plugins/batch/sink/dmaap/DMaaPMRRecordWriter.java @@ -0,0 +1,58 @@ +/* + * ===============================LICENSE_START====================================== + * dcae-analytics + * ================================================================================ + * Copyright © 2017 AT&T Intellectual Property. All rights reserved. + * ================================================================================ + * 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. + * ============================LICENSE_END=========================================== + */ + +package org.onap.dcae.apod.analytics.cdap.plugins.batch.sink.dmaap; + +import org.apache.hadoop.io.NullWritable; +import org.apache.hadoop.mapreduce.RecordWriter; +import org.apache.hadoop.mapreduce.TaskAttemptContext; +import org.onap.dcae.apod.analytics.dmaap.service.publisher.DMaaPMRPublisher; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.IOException; +import java.util.Arrays; + +/** + * A simple implementation of {@link RecordWriter} which writes messages to DMaaP MR topic + * <p> + * @author Rajiv Singla . Creation Date: 1/27/2017. + */ +public class DMaaPMRRecordWriter extends RecordWriter<String, NullWritable> { + + private static final Logger LOG = LoggerFactory.getLogger(DMaaPMRRecordWriter.class); + + private final DMaaPMRPublisher dMaaPMRPublisher; + + public DMaaPMRRecordWriter(DMaaPMRPublisher dMaaPMRPublisher) { + this.dMaaPMRPublisher = dMaaPMRPublisher; + } + + @Override + public void write(String message, NullWritable value) throws IOException, InterruptedException { + LOG.debug("Writing message to DMaaP MR Topic: {}", message); + dMaaPMRPublisher.publish(Arrays.asList(message)); + } + + @Override + public void close(TaskAttemptContext context) throws IOException, InterruptedException { + dMaaPMRPublisher.flush(); + } +} |