diff options
author | an4828 <nekrassov@att.com> | 2018-01-22 17:17:34 -0500 |
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committer | an4828 <nekrassov@att.com> | 2018-01-22 17:20:00 -0500 |
commit | c489a2eb22484e798c39a978bc8b61821b92322f (patch) | |
tree | 5aafe90efc15f8ced47e0d14c5f23a86a07f03e1 /dcae-analytics-cdap-plugins/src/main/java/org/onap/dcae/apod/analytics/cdap/plugins/streaming/dmaap/DMaaPMRReceiver.java | |
parent | baaecfc19132034168beb64a0c1e7813c7c17c4a (diff) |
TCA: Replace any openecomp reference by onap
Change-Id: I7c6d812ab5c1d7b30c63653d1974b0b1abc099be
Signed-off-by: an4828 <nekrassov@att.com>
Issue-ID: DCAEGEN2-224
Signed-off-by: an4828 <nekrassov@att.com>
Diffstat (limited to 'dcae-analytics-cdap-plugins/src/main/java/org/onap/dcae/apod/analytics/cdap/plugins/streaming/dmaap/DMaaPMRReceiver.java')
-rw-r--r-- | dcae-analytics-cdap-plugins/src/main/java/org/onap/dcae/apod/analytics/cdap/plugins/streaming/dmaap/DMaaPMRReceiver.java | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/dcae-analytics-cdap-plugins/src/main/java/org/onap/dcae/apod/analytics/cdap/plugins/streaming/dmaap/DMaaPMRReceiver.java b/dcae-analytics-cdap-plugins/src/main/java/org/onap/dcae/apod/analytics/cdap/plugins/streaming/dmaap/DMaaPMRReceiver.java new file mode 100644 index 0000000..593d5d1 --- /dev/null +++ b/dcae-analytics-cdap-plugins/src/main/java/org/onap/dcae/apod/analytics/cdap/plugins/streaming/dmaap/DMaaPMRReceiver.java @@ -0,0 +1,118 @@ +/* + * ===============================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.streaming.dmaap; + +import co.cask.cdap.api.data.format.StructuredRecord; +import co.cask.cdap.api.metrics.Metrics; +import com.google.common.base.Optional; +import org.apache.spark.storage.StorageLevel; +import org.apache.spark.streaming.receiver.Receiver; +import org.onap.dcae.apod.analytics.cdap.common.utils.DMaaPMRUtils; +import org.onap.dcae.apod.analytics.cdap.plugins.domain.config.dmaap.DMaaPMRSourcePluginConfig; +import org.onap.dcae.apod.analytics.cdap.plugins.utils.CDAPPluginUtils; +import org.onap.dcae.apod.analytics.cdap.plugins.utils.DMaaPSourceConfigMapper; +import org.onap.dcae.apod.analytics.common.exception.DCAEAnalyticsRuntimeException; +import org.onap.dcae.apod.analytics.dmaap.DMaaPMRFactory; +import org.onap.dcae.apod.analytics.dmaap.service.subscriber.DMaaPMRSubscriber; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.util.List; +import java.util.concurrent.TimeUnit; + +/** + * DMaaP MR Receiver which calls DMaaP MR Topic and stores structured records + * <p> + * @author Rajiv Singla . Creation Date: 1/19/2017. + */ +public class DMaaPMRReceiver extends Receiver<StructuredRecord> { + + private static final Logger LOG = LoggerFactory.getLogger(DMaaPMRReceiver.class); + private static final long serialVersionUID = 1L; + + private final DMaaPMRSourcePluginConfig pluginConfig; + private final transient Metrics metrics; + + public DMaaPMRReceiver(final StorageLevel storageLevel, final DMaaPMRSourcePluginConfig pluginConfig, + final Metrics metrics) { + super(storageLevel); + this.pluginConfig = pluginConfig; + this.metrics = metrics; + LOG.debug("Created DMaaP MR Receiver instance with plugin Config: {}", pluginConfig); + } + + @Override + public void onStart() { + + // create DMaaP MR Subscriber + final DMaaPMRSubscriber subscriber = + DMaaPMRFactory.create().createSubscriber(DMaaPSourceConfigMapper.map(pluginConfig)); + + // Start a new thread with indefinite loop until receiver is stopped + new Thread() { + @Override + public void run() { + while (!isStopped()) { + storeStructuredRecords(subscriber); + try { + final Integer pollingInterval = pluginConfig.getPollingInterval(); + LOG.debug("DMaaP MR Receiver sleeping for polling interval: {}", pollingInterval); + TimeUnit.MILLISECONDS.sleep(pollingInterval); + } catch (InterruptedException e) { + final String errorMessage = String.format( + "Interrupted Exception while DMaaP MR Receiver sleeping polling interval: %s", e); + throw new DCAEAnalyticsRuntimeException(errorMessage, LOG, e); + } + } + } + }.start(); + + } + + @Override + public void onStop() { + LOG.debug("Stopping DMaaP MR Receiver with plugin config: {}", pluginConfig); + } + + /** + * Fetches records from DMaaP MR Subscriber and store them as structured records + * + * @param subscriber DMaaP MR Subscriber Instance + */ + public void storeStructuredRecords(final DMaaPMRSubscriber subscriber) { + + LOG.debug("DMaaP MR Receiver start fetching messages from DMaaP MR Topic"); + + // Fetch messages from DMaaP MR Topic + final Optional<List<String>> subscriberMessagesOptional = + DMaaPMRUtils.getSubscriberMessages(subscriber, metrics); + + // store records + if (subscriberMessagesOptional.isPresent()) { + final List<String> messages = subscriberMessagesOptional.get(); + for (final String message : messages) { + store(CDAPPluginUtils.createDMaaPMRResponseStructuredRecord(message)); + } + LOG.debug("Stored DMaaP Subscriber messages as Structured Records. Message count {}", messages.size()); + } + } + +} |