-/*
- * ===============================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.openecomp.dcae.apod.analytics.cdap.common.utils;
-
-import co.cask.cdap.api.metrics.Metrics;
-import com.google.common.base.Optional;
-import com.google.common.base.Stopwatch;
-import org.openecomp.dcae.apod.analytics.cdap.common.CDAPMetricsConstants;
-import org.openecomp.dcae.apod.analytics.common.exception.DCAEAnalyticsRuntimeException;
-import org.openecomp.dcae.apod.analytics.common.utils.HTTPUtils;
-import org.openecomp.dcae.apod.analytics.dmaap.domain.response.DMaaPMRSubscriberResponse;
-import org.openecomp.dcae.apod.analytics.dmaap.service.subscriber.DMaaPMRSubscriber;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.util.List;
-
-/**
- * Utility common methods for DMaaP MR functionality
- *
- * @author Rajiv Singla . Creation Date: 2/6/2017.
- */
-public abstract class DMaaPMRUtils {
-
- private static final Logger LOG = LoggerFactory.getLogger(DMaaPMRUtils.class);
-
- private DMaaPMRUtils() {
- // private constructor
- }
-
-
- /**
- * Returns messages fetched from DMaaP MR Subscriber.
- *
- * @param subscriber DMaaP MR Subscriber instance
- * @param metrics CDAP metrics
- *
- * @return messages fetched from DMaaP MR topic
- */
- public static Optional<List<String>> getSubscriberMessages(final DMaaPMRSubscriber subscriber,
- final Metrics metrics) {
-
- final Optional<DMaaPMRSubscriberResponse> subscriberResponseOptional =
- getSubscriberResponse(subscriber, metrics);
-
- // If response is not present, unable to proceed
- if (!subscriberResponseOptional.isPresent()) {
- return Optional.absent();
- }
-
- final DMaaPMRSubscriberResponse subscriberResponse = subscriberResponseOptional.get();
-
- // If response code return by the subscriber call is not successful, unable to do proceed
- if (!HTTPUtils.isSuccessfulResponseCode(subscriberResponse.getResponseCode())) {
- LOG.error("Subscriber was unable to fetch messages properly.Subscriber Response Code: {} " +
- "Unable to proceed further....", subscriberResponse.getResponseCode());
- metrics.count(CDAPMetricsConstants.DMAAP_MR_SUBSCRIBER_UNSUCCESSFUL_RESPONSES_METRIC, 1);
- return Optional.absent();
- }
-
- LOG.debug("Subscriber HTTP Response Status Code match successful: {}", subscriberResponse,
- HTTPUtils.HTTP_SUCCESS_STATUS_CODE);
-
- final List<String> actualMessages = subscriberResponse.getFetchedMessages();
-
- // If there are no message returned during from Subscriber, nothing to write to CDAP Stream
- if (actualMessages.isEmpty()) {
- LOG.debug("Subscriber Response has no messages. Nothing to write....");
- metrics.count(CDAPMetricsConstants.DMAAP_MR_SUBSCRIBER_RESPONSES_WITH_NO_MESSAGES_METRIC, 1);
- return Optional.absent();
- }
-
- LOG.debug("DMaaP MR Subscriber found new messages in DMaaP Topic. Message count: {}", actualMessages.size());
- metrics.count(CDAPMetricsConstants.DMAAP_MR_SUBSCRIBER_TOTAL_MESSAGES_PROCESSED_METRIC, actualMessages.size());
-
- return Optional.of(actualMessages);
-
- }
-
-
- /**
- * Get Subscriber response and records time taken to fetch messages. Returns Optional.None if Subscriber response
- * is null or response status code is not present
- *
- * @param subscriber - DMaaP Subscriber
- * @param metrics - CDAP Metrics collector
- *
- * @return - Optional of Subscriber Response
- */
- public static Optional<DMaaPMRSubscriberResponse> getSubscriberResponse(final DMaaPMRSubscriber subscriber,
- final Metrics metrics) {
-
- // Record all response count from subscriber
- metrics.count(CDAPMetricsConstants.DMAAP_MR_SUBSCRIBER_ALL_RESPONSES_COUNT_METRIC, 1);
-
- // Check how long it took for subscriber to respond
- final Stopwatch stopwatch = new Stopwatch();
- stopwatch.start();
-
- // Fetch messages from DMaaP MR Topic
- DMaaPMRSubscriberResponse subscriberResponse = null;
- try {
- subscriberResponse = subscriber.fetchMessages();
- } catch (DCAEAnalyticsRuntimeException e) {
- LOG.error("Error while fetching messages for DMaaP MR Topic: {}", e);
- }
-
- stopwatch.stop();
- final long subscriberResponseTimeMS = stopwatch.elapsedMillis();
-
- // If response is null is null or response code is null, unable to proceed nothing to do
- if (subscriberResponse == null || subscriberResponse.getResponseCode() == null) {
- LOG.error("Subscriber Response is null or subscriber Response code is null. Unable to proceed further...");
- return Optional.absent();
- }
-
- LOG.debug("Subscriber Response:{}, Subscriber HTTP Response Status Code {}, Subscriber Response Time(ms): {}",
- subscriberResponse, subscriberResponse.getResponseCode(), subscriberResponseTimeMS);
-
- // Record subscriber response time
- metrics.gauge(CDAPMetricsConstants.DMAAP_MR_SUBSCRIBER_RESPONSE_TIME_MS_METRIC, subscriberResponseTimeMS);
-
- return Optional.of(subscriberResponse);
- }
-
-}
+/*\r
+ * ===============================LICENSE_START======================================\r
+ * dcae-analytics\r
+ * ================================================================================\r
+ * Copyright © 2017 AT&T Intellectual Property. All rights reserved.\r
+ * ================================================================================\r
+ * Licensed under the Apache License, Version 2.0 (the "License");\r
+ * you may not use this file except in compliance with the License.\r
+ * You may obtain a copy of the License at\r
+ *\r
+ * http://www.apache.org/licenses/LICENSE-2.0\r
+ *\r
+ * Unless required by applicable law or agreed to in writing, software\r
+ * distributed under the License is distributed on an "AS IS" BASIS,\r
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
+ * See the License for the specific language governing permissions and\r
+ * limitations under the License.\r
+ * ============================LICENSE_END===========================================\r
+ */\r
+\r
+package org.openecomp.dcae.apod.analytics.cdap.common.utils;\r
+\r
+import co.cask.cdap.api.metrics.Metrics;\r
+import com.google.common.base.Optional;\r
+import com.google.common.base.Stopwatch;\r
+import org.openecomp.dcae.apod.analytics.cdap.common.CDAPMetricsConstants;\r
+import org.openecomp.dcae.apod.analytics.common.exception.DCAEAnalyticsRuntimeException;\r
+import org.openecomp.dcae.apod.analytics.common.utils.HTTPUtils;\r
+import org.openecomp.dcae.apod.analytics.dmaap.domain.response.DMaaPMRSubscriberResponse;\r
+import org.openecomp.dcae.apod.analytics.dmaap.service.subscriber.DMaaPMRSubscriber;\r
+import org.slf4j.Logger;\r
+import org.slf4j.LoggerFactory;\r
+\r
+import java.util.List;\r
+\r
+/**\r
+ * Utility common methods for DMaaP MR functionality\r
+ *\r
+ * @author Rajiv Singla . Creation Date: 2/6/2017.\r
+ */\r
+public abstract class DMaaPMRUtils {\r
+\r
+ private static final Logger LOG = LoggerFactory.getLogger(DMaaPMRUtils.class);\r
+\r
+ private DMaaPMRUtils() {\r
+ // private constructor\r
+ }\r
+\r
+\r
+ /**\r
+ * Returns messages fetched from DMaaP MR Subscriber.\r
+ *\r
+ * @param subscriber DMaaP MR Subscriber instance\r
+ * @param metrics CDAP metrics\r
+ *\r
+ * @return messages fetched from DMaaP MR topic\r
+ */\r
+ public static Optional<List<String>> getSubscriberMessages(final DMaaPMRSubscriber subscriber,\r
+ final Metrics metrics) {\r
+\r
+ final Optional<DMaaPMRSubscriberResponse> subscriberResponseOptional =\r
+ getSubscriberResponse(subscriber, metrics);\r
+\r
+ // If response is not present, unable to proceed\r
+ if (!subscriberResponseOptional.isPresent()) {\r
+ return Optional.absent();\r
+ }\r
+\r
+ final DMaaPMRSubscriberResponse subscriberResponse = subscriberResponseOptional.get();\r
+\r
+ // If response code return by the subscriber call is not successful, unable to do proceed\r
+ if (!HTTPUtils.isSuccessfulResponseCode(subscriberResponse.getResponseCode())) {\r
+ LOG.error("Subscriber was unable to fetch messages properly.Subscriber Response Code: {} " +\r
+ "Unable to proceed further....", subscriberResponse.getResponseCode());\r
+ metrics.count(CDAPMetricsConstants.DMAAP_MR_SUBSCRIBER_UNSUCCESSFUL_RESPONSES_METRIC, 1);\r
+ return Optional.absent();\r
+ }\r
+\r
+ LOG.debug("Subscriber HTTP Response Status Code match successful: {}", subscriberResponse,\r
+ HTTPUtils.HTTP_SUCCESS_STATUS_CODE);\r
+\r
+ final List<String> actualMessages = subscriberResponse.getFetchedMessages();\r
+\r
+ // If there are no message returned during from Subscriber, nothing to write to CDAP Stream\r
+ if (actualMessages.isEmpty()) {\r
+ LOG.debug("Subscriber Response has no messages. Nothing to write....");\r
+ metrics.count(CDAPMetricsConstants.DMAAP_MR_SUBSCRIBER_RESPONSES_WITH_NO_MESSAGES_METRIC, 1);\r
+ return Optional.absent();\r
+ }\r
+\r
+ LOG.debug("DMaaP MR Subscriber found new messages in DMaaP Topic. Message count: {}", actualMessages.size());\r
+ metrics.count(CDAPMetricsConstants.DMAAP_MR_SUBSCRIBER_TOTAL_MESSAGES_PROCESSED_METRIC, actualMessages.size());\r
+\r
+ return Optional.of(actualMessages);\r
+\r
+ }\r
+\r
+\r
+ /**\r
+ * Get Subscriber response and records time taken to fetch messages. Returns Optional.None if Subscriber response\r
+ * is null or response status code is not present\r
+ *\r
+ * @param subscriber - DMaaP Subscriber\r
+ * @param metrics - CDAP Metrics collector\r
+ *\r
+ * @return - Optional of Subscriber Response\r
+ */\r
+ public static Optional<DMaaPMRSubscriberResponse> getSubscriberResponse(final DMaaPMRSubscriber subscriber,\r
+ final Metrics metrics) {\r
+\r
+ // Record all response count from subscriber\r
+ metrics.count(CDAPMetricsConstants.DMAAP_MR_SUBSCRIBER_ALL_RESPONSES_COUNT_METRIC, 1);\r
+\r
+ // Check how long it took for subscriber to respond\r
+ final Stopwatch stopwatch = new Stopwatch();\r
+ stopwatch.start();\r
+\r
+ // Fetch messages from DMaaP MR Topic\r
+ DMaaPMRSubscriberResponse subscriberResponse = null;\r
+ try {\r
+ subscriberResponse = subscriber.fetchMessages();\r
+ } catch (DCAEAnalyticsRuntimeException e) {\r
+ LOG.error("Error while fetching messages for DMaaP MR Topic: {}", e);\r
+ }\r
+\r
+ stopwatch.stop();\r
+ final long subscriberResponseTimeMS = stopwatch.elapsedMillis();\r
+\r
+ // If response is null is null or response code is null, unable to proceed nothing to do\r
+ if (subscriberResponse == null || subscriberResponse.getResponseCode() == null) {\r
+ LOG.error("Subscriber Response is null or subscriber Response code is null. Unable to proceed further...");\r
+ return Optional.absent();\r
+ }\r
+\r
+ LOG.debug("Subscriber Response:{}, Subscriber HTTP Response Status Code {}, Subscriber Response Time(ms): {}",\r
+ subscriberResponse, subscriberResponse.getResponseCode(), subscriberResponseTimeMS);\r
+\r
+ // Record subscriber response time\r
+ metrics.gauge(CDAPMetricsConstants.DMAAP_MR_SUBSCRIBER_RESPONSE_TIME_MS_METRIC, subscriberResponseTimeMS);\r
+\r
+ return Optional.of(subscriberResponse);\r
+ }\r
+\r
+}\r
Code Review / dcaegen2 / analytics / tca.git / blobdiff