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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 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.openecomp.sdc.be.components.distribution.engine;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.TimeUnit;
import org.apache.commons.lang3.concurrent.BasicThreadFactory;
import org.openecomp.sdc.be.config.BeEcompErrorManager;
import org.openecomp.sdc.be.config.DistributionEngineConfiguration;
import org.openecomp.sdc.be.config.DistributionEngineConfiguration.DistributionStatusTopicConfig;
import org.openecomp.sdc.be.impl.ComponentsUtils;
import org.openecomp.sdc.be.resources.data.auditing.AuditingActionEnum;
import org.openecomp.sdc.common.config.EcompErrorName;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.att.nsa.cambria.client.CambriaConsumer;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import fj.data.Either;
public class DistributionEnginePollingTask implements Runnable {
public static final String DISTRIBUTION_STATUS_POLLING = "distributionEngineStatusPolling";
private String topicName;
private ComponentsUtils componentUtils;
private int fetchTimeoutInSec = 15;
private int pollingIntervalInSec;
private String consumerId;
private String consumerGroup;
private DistributionEngineConfiguration distributionEngineConfiguration;
private CambriaHandler cambriaHandler = new CambriaHandler();
private Gson gson = new GsonBuilder().setPrettyPrinting().create();
private ScheduledExecutorService scheduledPollingService = Executors.newScheduledThreadPool(1, new BasicThreadFactory.Builder().namingPattern("TopicPollingThread-%d").build());
private static Logger logger = LoggerFactory.getLogger(DistributionEnginePollingTask.class.getName());
ScheduledFuture<?> scheduledFuture = null;
private CambriaConsumer cambriaConsumer = null;
private DistributionEngineClusterHealth distributionEngineClusterHealth = null;
public DistributionEnginePollingTask(DistributionEngineConfiguration distributionEngineConfiguration, String envName, ComponentsUtils componentUtils, DistributionEngineClusterHealth distributionEngineClusterHealth) {
this.componentUtils = componentUtils;
this.distributionEngineConfiguration = distributionEngineConfiguration;
DistributionStatusTopicConfig statusConfig = distributionEngineConfiguration.getDistributionStatusTopic();
this.pollingIntervalInSec = statusConfig.getPollingIntervalSec();
this.fetchTimeoutInSec = statusConfig.getFetchTimeSec();
this.consumerGroup = statusConfig.getConsumerGroup();
this.consumerId = statusConfig.getConsumerId();
this.distributionEngineClusterHealth = distributionEngineClusterHealth;
}
public void startTask(String topicName) {
this.topicName = topicName;
logger.debug("start task for polling topic {}", topicName);
if (fetchTimeoutInSec < 15) {
logger.warn("fetchTimeout value should be greater or equal to 15 sec. use default");
fetchTimeoutInSec = 15;
}
try {
cambriaConsumer = cambriaHandler.createConsumer(distributionEngineConfiguration.getUebServers(), topicName, distributionEngineConfiguration.getUebPublicKey(), distributionEngineConfiguration.getUebSecretKey(), consumerId, consumerGroup,
fetchTimeoutInSec * 1000);
if (scheduledPollingService != null) {
logger.debug("Start Distribution Engine polling task. polling interval {} seconds", pollingIntervalInSec);
scheduledFuture = scheduledPollingService.scheduleAtFixedRate(this, 0, pollingIntervalInSec, TimeUnit.SECONDS);
}
} catch (Exception e) {
logger.debug("unexpected error occured", e);
String methodName = new Object() {
}.getClass().getEnclosingMethod().getName();
BeEcompErrorManager.getInstance().processEcompError(EcompErrorName.BeDistributionEngineSystemError, methodName, e.getMessage());
BeEcompErrorManager.getInstance().logBeDistributionEngineSystemError(methodName, e.getMessage());
}
}
public void stopTask() {
if (scheduledFuture != null) {
boolean result = scheduledFuture.cancel(true);
logger.debug("Stop polling task. result = {}", result);
if (false == result) {
BeEcompErrorManager.getInstance().processEcompError(EcompErrorName.BeUebSystemError, DISTRIBUTION_STATUS_POLLING, "try to stop the polling task");
BeEcompErrorManager.getInstance().logBeUebSystemError(DISTRIBUTION_STATUS_POLLING, "try to stop the polling task");
}
scheduledFuture = null;
}
if (cambriaConsumer != null) {
logger.debug("close consumer");
cambriaHandler.closeConsumer(cambriaConsumer);
}
}
public void destroy() {
this.stopTask();
shutdownExecutor();
}
@Override
public void run() {
logger.trace("run() method. polling queue {}", topicName);
try {
// init error
if (cambriaConsumer == null) {
BeEcompErrorManager.getInstance().processEcompError(EcompErrorName.BeUebSystemError, DISTRIBUTION_STATUS_POLLING, "polling task was not initialized properly");
BeEcompErrorManager.getInstance().logBeUebSystemError(DISTRIBUTION_STATUS_POLLING, "polling task was not initialized properly");
stopTask();
return;
}
Either<Iterable<String>, CambriaErrorResponse> fetchResult = cambriaHandler.fetchFromTopic(cambriaConsumer);
// fetch error
if (fetchResult.isRight()) {
CambriaErrorResponse errorResponse = fetchResult.right().value();
BeEcompErrorManager.getInstance().processEcompError(EcompErrorName.BeUebSystemError, DISTRIBUTION_STATUS_POLLING, "failed to fetch messages from topic " + topicName + " error: " + fetchResult.right().value());
BeEcompErrorManager.getInstance().logBeUebSystemError(DISTRIBUTION_STATUS_POLLING, "failed to fetch messages from topic " + topicName + " error: " + fetchResult.right().value());
// TODO: if status== internal error (connection problem) change
// state to inactive
// in next try, if succeed - change to active
return;
}
// success
Iterable<String> messages = fetchResult.left().value();
for (String message : messages) {
logger.trace("received message {}", message);
try {
DistributionStatusNotification notification = gson.fromJson(message, DistributionStatusNotification.class);
componentUtils.auditDistributionStatusNotification(AuditingActionEnum.DISTRIBUTION_STATUS, notification.getDistributionID(), notification.getConsumerID(), topicName, notification.getArtifactURL(),
String.valueOf(notification.getTimestamp()), notification.getStatus().name(), notification.getErrorReason());
distributionEngineClusterHealth.setHealthCheckOkAndReportInCaseLastStateIsDown();
} catch (Exception e) {
logger.debug("failed to convert message to object", e);
BeEcompErrorManager.getInstance().processEcompError(EcompErrorName.BeUebSystemError, DISTRIBUTION_STATUS_POLLING, "failed to parse message " + message + " from topic " + topicName + " error: " + fetchResult.right().value());
BeEcompErrorManager.getInstance().logBeUebSystemError(DISTRIBUTION_STATUS_POLLING, "failed to parse message " + message + " from topic " + topicName + " error: " + fetchResult.right().value());
}
}
} catch (Exception e) {
logger.debug("unexpected error occured", e);
String methodName = new Object() {
}.getClass().getEnclosingMethod().getName();
BeEcompErrorManager.getInstance().processEcompError(EcompErrorName.BeDistributionEngineSystemError, methodName, e.getMessage());
BeEcompErrorManager.getInstance().logBeDistributionEngineSystemError(methodName, e.getMessage());
}
}
private void shutdownExecutor() {
if (scheduledPollingService == null)
return;
scheduledPollingService.shutdown(); // Disable new tasks from being
// submitted
try {
// Wait a while for existing tasks to terminate
if (!scheduledPollingService.awaitTermination(60, TimeUnit.SECONDS)) {
scheduledPollingService.shutdownNow(); // Cancel currently
// executing tasks
// Wait a while for tasks to respond to being cancelled
if (!scheduledPollingService.awaitTermination(60, TimeUnit.SECONDS))
logger.debug("Pool did not terminate");
}
} catch (InterruptedException ie) {
// (Re-)Cancel if current thread also interrupted
scheduledPollingService.shutdownNow();
// Preserve interrupt status
Thread.currentThread().interrupt();
}
}
}
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