catalog-be/src/main/java/org/openecomp/sdc/be/components/distribution/engine/DistributionEnginePollingTask.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * SDC
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.openecomp.sdc.be.components.distribution.engine;
  22
  23 import com.att.nsa.cambria.client.CambriaConsumer;
  24 import com.google.gson.Gson;
  25 import com.google.gson.GsonBuilder;
  26 import fj.data.Either;
  27 import org.apache.commons.lang3.concurrent.BasicThreadFactory;
  28 import org.openecomp.sdc.be.components.distribution.engine.report.DistributionCompleteReporter;
  29 import org.openecomp.sdc.be.config.BeEcompErrorManager;
  30 import org.openecomp.sdc.be.config.DistributionEngineConfiguration;
  31 import org.openecomp.sdc.be.config.DistributionEngineConfiguration.DistributionStatusTopicConfig;
  32 import org.openecomp.sdc.be.impl.ComponentsUtils;
  33 import org.openecomp.sdc.be.resources.data.OperationalEnvironmentEntry;
  34 import org.openecomp.sdc.common.log.wrappers.Logger;
  35 import org.openecomp.sdc.common.log.wrappers.LoggerSdcAudit;
  36
  37 import java.util.concurrent.Executors;
  38 import java.util.concurrent.ScheduledExecutorService;
  39 import java.util.concurrent.ScheduledFuture;
  40 import java.util.concurrent.TimeUnit;
  41
  42 public class DistributionEnginePollingTask implements Runnable {
  43
  44     public static final String DISTRIBUTION_STATUS_POLLING = "distributionEngineStatusPolling";
  45     private static final String PARTNER_NAME = "UNKNOWN";
  46
  47     private String topicName;
  48     private ComponentsUtils componentUtils;
  49     private int fetchTimeoutInSec = 15;
  50     private int pollingIntervalInSec;
  51     private String consumerId;
  52     private String consumerGroup;
  53
  54     private CambriaHandler cambriaHandler = new CambriaHandler();
  55     private Gson gson = new GsonBuilder().setPrettyPrinting().create();
  56     private DistributionCompleteReporter distributionCompleteReporter;
  57
  58     private ScheduledExecutorService scheduledPollingService = Executors.newScheduledThreadPool(1, new BasicThreadFactory.Builder().namingPattern("TopicPollingThread-%d").build());
  59
  60     private static final Logger logger = Logger.getLogger(DistributionEnginePollingTask.class.getName());
  61     private static LoggerSdcAudit audit = new LoggerSdcAudit(DistributionEnginePollingTask.class);
  62
  63     ScheduledFuture<?> scheduledFuture = null;
  64     private CambriaConsumer cambriaConsumer = null;
  65
  66     private DistributionEngineClusterHealth distributionEngineClusterHealth = null;
  67
  68     private OperationalEnvironmentEntry environmentEntry;
  69
  70     public DistributionEnginePollingTask(DistributionEngineConfiguration distributionEngineConfiguration, DistributionCompleteReporter distributionCompleteReporter, ComponentsUtils componentUtils, DistributionEngineClusterHealth distributionEngineClusterHealth, OperationalEnvironmentEntry environmentEntry) {
  71
  72         this.componentUtils = componentUtils;
  73         DistributionStatusTopicConfig statusConfig = distributionEngineConfiguration.getDistributionStatusTopic();
  74         this.pollingIntervalInSec = statusConfig.getPollingIntervalSec();
  75         this.fetchTimeoutInSec = statusConfig.getFetchTimeSec();
  76         this.consumerGroup = statusConfig.getConsumerGroup();
  77         this.consumerId = statusConfig.getConsumerId();
  78         this.distributionEngineClusterHealth = distributionEngineClusterHealth;
  79         this.environmentEntry = environmentEntry;
  80         this.distributionCompleteReporter = distributionCompleteReporter;
  81     }
  82
  83     public void startTask(String topicName) {
  84
  85         this.topicName = topicName;
  86         logger.debug("start task for polling topic {}", topicName);
  87         if (fetchTimeoutInSec < 15) {
  88             logger.warn("fetchTimeout value should be greater or equal to 15 sec. use default");
  89             fetchTimeoutInSec = 15;
  90         }
  91         try {
  92             cambriaConsumer = cambriaHandler.createConsumer(environmentEntry.getDmaapUebAddress(), topicName, environmentEntry.getUebApikey(), environmentEntry.getUebSecretKey(), consumerId, consumerGroup,
  93                     fetchTimeoutInSec * 1000);
  94
  95             if (scheduledPollingService != null) {
  96                 logger.debug("Start Distribution Engine polling task. polling interval {} seconds", pollingIntervalInSec);
  97                 scheduledFuture = scheduledPollingService.scheduleAtFixedRate(this, 0, pollingIntervalInSec, TimeUnit.SECONDS);
  98
  99             }
 100         } catch (Exception e) {
 101             logger.debug("unexpected error occured", e);
 102             String methodName = Object.class.getEnclosingMethod().getName();
 103             BeEcompErrorManager.getInstance().logBeDistributionEngineSystemError(methodName, e.getMessage());
 104         }
 105     }
 106
 107     public void stopTask() {
 108         if (scheduledFuture != null) {
 109             boolean result = scheduledFuture.cancel(true);
 110             logger.debug("Stop polling task. result = {}", result);
 111             if (!result) {
 112                 BeEcompErrorManager.getInstance().logBeUebSystemError(DISTRIBUTION_STATUS_POLLING, "try to stop the polling task");
 113             }
 114             scheduledFuture = null;
 115         }
 116         if (cambriaConsumer != null) {
 117             logger.debug("close consumer");
 118             cambriaHandler.closeConsumer(cambriaConsumer);
 119         }
 120
 121     }
 122
 123     public void destroy() {
 124         this.stopTask();
 125         shutdownExecutor();
 126     }
 127
 128     @Override
 129     public void run() {
 130         logger.trace("run() method. polling queue {}", topicName);
 131
 132         try {
 133             // init error
 134             if (cambriaConsumer == null) {
 135                 BeEcompErrorManager.getInstance().logBeUebSystemError(DISTRIBUTION_STATUS_POLLING, "polling task was not initialized properly");
 136                 stopTask();
 137                 return;
 138             }
 139
 140             Either<Iterable<String>, CambriaErrorResponse> fetchResult = cambriaHandler.fetchFromTopic(cambriaConsumer);
 141             // fetch error
 142             if (fetchResult.isRight()) {
 143                 CambriaErrorResponse errorResponse = fetchResult.right().value();
 144                 BeEcompErrorManager.getInstance().logBeUebSystemError(DISTRIBUTION_STATUS_POLLING, "failed to fetch messages from topic " + topicName + " error: " + errorResponse);
 145
 146                 // TODO: if status== internal error (connection problem) change
 147                 // state to inactive
 148                 // in next try, if succeed - change to active
 149                 return;
 150             }
 151
 152             // success
 153             Iterable<String> messages = fetchResult.left().value();
 154             for (String message : messages) {
 155                 logger.trace("received message {}", message);
 156                 try {
 157                     DistributionStatusNotification notification = gson.fromJson(message, DistributionStatusNotification.class);
 158                     audit.startAuditFetchLog(PARTNER_NAME, DistributionEnginePollingTask.class.getName());
 159                     handleDistributionNotificationMsg(notification, audit);
 160                     distributionEngineClusterHealth.setHealthCheckOkAndReportInCaseLastStateIsDown();
 161                 } catch (Exception e) {
 162                     logger.debug("failed to convert message to object", e);
 163                     BeEcompErrorManager.getInstance().logBeUebSystemError(DISTRIBUTION_STATUS_POLLING, "failed to parse message " + message + " from topic " + topicName + " error: " + fetchResult.right().value());
 164                 }
 165
 166             }
 167         } catch (Exception e) {
 168             logger.debug("unexpected error occurred", e);
 169             String methodName = Object.class.getEnclosingMethod().getName();
 170             BeEcompErrorManager.getInstance().logBeDistributionEngineSystemError(methodName, e.getMessage());
 171         }
 172
 173     }
 174
 175     private void handleDistributionNotificationMsg(DistributionStatusNotification notification, LoggerSdcAudit audit) {
 176         componentUtils.auditDistributionStatusNotification(notification.getDistributionID(),
 177                 notification.getConsumerID(), topicName, notification.getArtifactURL(),
 178                 String.valueOf(notification.getTimestamp()), notification.getStatus().name(),
 179                 notification.getErrorReason(), audit);
 180         if (notification.isDistributionCompleteNotification()) {
 181             distributionCompleteReporter.reportDistributionComplete(notification);
 182         }
 183     }
 184
 185     private void shutdownExecutor() {
 186         if (scheduledPollingService == null)
 187             return;
 188
 189         scheduledPollingService.shutdown(); // Disable new tasks from being
 190         // submitted
 191         try {
 192             // Wait a while for existing tasks to terminate
 193             if (!scheduledPollingService.awaitTermination(60, TimeUnit.SECONDS)) {
 194                 scheduledPollingService.shutdownNow(); // Cancel currently
 195                 // executing tasks
 196                 // Wait a while for tasks to respond to being cancelled
 197                 if (!scheduledPollingService.awaitTermination(60, TimeUnit.SECONDS))
 198                     logger.debug("Pool did not terminate");
 199             }
 200         } catch (InterruptedException ie) {
 201             // (Re-)Cancel if current thread also interrupted
 202             scheduledPollingService.shutdownNow();
 203             // Preserve interrupt status
 204             Thread.currentThread().interrupt();
 205         }
 206     }
 207
 208 }