2 * ===============================LICENSE_START======================================
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4 * ================================================================================
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5 * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
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6 * ================================================================================
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7 * Licensed under the Apache License, Version 2.0 (the "License");
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8 * you may not use this file except in compliance with the License.
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9 * You may obtain a copy of the License at
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11 * http://www.apache.org/licenses/LICENSE-2.0
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13 * Unless required by applicable law or agreed to in writing, software
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14 * distributed under the License is distributed on an "AS IS" BASIS,
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15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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16 * See the License for the specific language governing permissions and
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17 * limitations under the License.
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18 * ============================LICENSE_END===========================================
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21 package org.openecomp.dcae.apod.analytics.cdap.tca.worker;
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23 import co.cask.cdap.api.annotation.Property;
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24 import co.cask.cdap.api.metrics.Metrics;
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25 import co.cask.cdap.api.worker.WorkerContext;
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26 import org.openecomp.dcae.apod.analytics.cdap.common.CDAPComponentsConstants;
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27 import org.openecomp.dcae.apod.analytics.cdap.tca.settings.TCAAppPreferences;
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28 import org.openecomp.dcae.apod.analytics.cdap.tca.utils.AppPreferencesToSubscriberConfigMapper;
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29 import org.openecomp.dcae.apod.analytics.cdap.tca.utils.CDAPTCAUtils;
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30 import org.openecomp.dcae.apod.analytics.common.AnalyticsConstants;
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31 import org.openecomp.dcae.apod.analytics.dmaap.DMaaPMRFactory;
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32 import org.openecomp.dcae.apod.analytics.dmaap.domain.config.DMaaPMRSubscriberConfig;
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33 import org.openecomp.dcae.apod.analytics.dmaap.service.subscriber.DMaaPMRSubscriber;
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34 import org.openecomp.dcae.apod.analytics.tca.utils.TCAUtils;
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35 import org.quartz.JobDataMap;
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36 import org.quartz.SchedulerException;
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37 import org.quartz.impl.StdSchedulerFactory;
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38 import org.slf4j.Logger;
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39 import org.slf4j.LoggerFactory;
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41 import java.util.concurrent.atomic.AtomicBoolean;
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44 * TCA DMaaP Subscriber will read messages and post them to cdap stream at regular intervals
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46 * @author Rajiv Singla . Creation Date: 10/14/2016.
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48 public class TCADMaaPSubscriberWorker extends BaseTCADMaaPMRWorker {
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50 private static final Logger LOG = LoggerFactory.getLogger(TCADMaaPSubscriberWorker.class);
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52 private DMaaPMRSubscriber subscriber;
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53 private Metrics metrics;
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55 private final String tcaSubscriberOutputStreamName;
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57 public TCADMaaPSubscriberWorker(final String tcaSubscriberOutputStreamName) {
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58 this.tcaSubscriberOutputStreamName = tcaSubscriberOutputStreamName;
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63 public void configure() {
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64 setName(CDAPComponentsConstants.TCA_FIXED_DMAAP_SUBSCRIBER_WORKER);
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65 setDescription(CDAPComponentsConstants.TCA_FIXED_DMAAP_SUBSCRIBER_DESCRIPTION_WORKER);
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66 LOG.debug("Configuring TCA MR DMaaP Subscriber worker with name: {}",
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67 CDAPComponentsConstants.TCA_FIXED_DMAAP_SUBSCRIBER_WORKER);
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71 public void initialize(WorkerContext context) throws Exception {
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72 super.initialize(context);
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74 // Parse runtime arguments
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75 final TCAAppPreferences tcaAppPreferences = CDAPTCAUtils.getValidatedTCAAppPreferences(context);
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77 LOG.info("Initializing TCA MR DMaaP Subscriber worker with preferences: {}", tcaAppPreferences);
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79 // Map TCA App Preferences to DMaaP MR Subscriber Config
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80 final DMaaPMRSubscriberConfig subscriberConfig = AppPreferencesToSubscriberConfigMapper.map(tcaAppPreferences);
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82 LOG.info("TCA DMaaP MR Subscriber worker will be writing to CDAP Stream: {}", tcaSubscriberOutputStreamName);
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84 // Create an instance of DMaaP MR Subscriber
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85 LOG.debug("Creating an instance of DMaaP Subscriber");
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86 subscriber = DMaaPMRFactory.create().createSubscriber(subscriberConfig);
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88 // initialize a new Quartz scheduler
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89 initializeScheduler(tcaAppPreferences, new StdSchedulerFactory());
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91 // initialize scheduler state
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92 isSchedulerShutdown = new AtomicBoolean(true);
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96 * Initializes a scheduler instance for DMaaP MR Subscriber Job
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98 * @throws SchedulerException SchedulerException
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100 private void initializeScheduler(final TCAAppPreferences tcaAppPreferences,
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101 final StdSchedulerFactory stdSchedulerFactory) throws SchedulerException {
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103 // Get Subscriber polling interval
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104 final Integer subscriberPollingInterval = tcaAppPreferences.getSubscriberPollingInterval();
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106 // Subscriber Quartz Properties file
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107 final String quartzSubscriberPropertiesFileName = AnalyticsConstants.TCA_QUARTZ_SUBSCRIBER_PROPERTIES_FILE_NAME;
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109 // Create a new JobDataMap containing information required by TCA DMaaP Subscriber Job
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110 final JobDataMap jobDataMap = new JobDataMap();
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111 jobDataMap.put(AnalyticsConstants.CDAP_STREAM_VARIABLE_NAME, tcaSubscriberOutputStreamName);
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112 jobDataMap.put(AnalyticsConstants.WORKER_CONTEXT_VARIABLE_NAME, getContext());
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113 jobDataMap.put(AnalyticsConstants.DMAAP_SUBSCRIBER_VARIABLE_NAME, subscriber);
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114 jobDataMap.put(AnalyticsConstants.DMAAP_METRICS_VARIABLE_NAME, metrics);
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116 // Create new publisher scheduler
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117 scheduler = TCAUtils.createQuartzScheduler(subscriberPollingInterval, stdSchedulerFactory,
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118 quartzSubscriberPropertiesFileName, jobDataMap, TCADMaaPMRSubscriberJob.class,
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119 AnalyticsConstants.TCA_DMAAP_SUBSCRIBER_QUARTZ_JOB_NAME,
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120 AnalyticsConstants.TCA_DMAAP_SUBSCRIBER_QUARTZ_TRIGGER_NAME);
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