/**
*
*/
package com.thinkbiganalytics.metadata.core.sla.feed;
/*-
* #%L
* thinkbig-metadata-core
* %%
* Copyright (C) 2017 ThinkBig Analytics
* %%
* 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.
* #L%
*/
import com.thinkbiganalytics.metadata.api.feed.Feed;
import com.thinkbiganalytics.metadata.api.feed.FeedProvider;
import com.thinkbiganalytics.metadata.api.op.FeedOperation;
import com.thinkbiganalytics.metadata.api.op.FeedOperationsProvider;
import com.thinkbiganalytics.metadata.api.sla.FeedExecutedSinceFeed;
import com.thinkbiganalytics.metadata.sla.api.AssessmentResult;
import com.thinkbiganalytics.metadata.sla.api.Metric;
import com.thinkbiganalytics.metadata.sla.spi.MetricAssessmentBuilder;
import org.joda.time.DateTime;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.Serializable;
import java.util.List;
/**
*
*/
@SuppressWarnings("Duplicates")
public class FeedExecutedSinceFeedAssessor extends MetadataMetricAssessor<FeedExecutedSinceFeed> {
private static final Logger LOG = LoggerFactory.getLogger(FeedExecutedSinceFeedAssessor.class);
@Override
public boolean accepts(Metric metric) {
return metric instanceof FeedExecutedSinceFeed;
}
@Override
public void assess(FeedExecutedSinceFeed metric, MetricAssessmentBuilder<Serializable> builder) {
LOG.debug("Assessing metric {}", metric.getDescription());
FeedProvider feedProvider = getFeedProvider();
FeedOperationsProvider opsProvider = getFeedOperationsProvider();
List<Feed> mainFeeds = feedProvider.getFeeds(feedProvider.feedCriteria().name(metric.getFeedName()).category(metric.getCategoryName()));
LOG.debug("Main feeds {}", mainFeeds);
List<Feed> triggeredFeeds = feedProvider.getFeeds(feedProvider.feedCriteria().name(metric.getSinceFeedName()).category(metric.getSinceCategoryName()));
LOG.debug("Triggered feeds {}", triggeredFeeds);
builder.metric(metric);
if (!mainFeeds.isEmpty() && !triggeredFeeds.isEmpty()) {
Feed mainFeed = mainFeeds.get(0);
Feed triggeredFeed = triggeredFeeds.get(0);
List<FeedOperation> mainFeedOps = opsProvider.findLatestCompleted(mainFeed.getId());
List<FeedOperation> triggeredFeedOps = opsProvider.findLatest(triggeredFeed.getId());
if (mainFeedOps.isEmpty()) {
// If the feed we are checking has never run then it can't have run before the "since" feed.
LOG.debug("Main feed ops is empty");
builder
.result(AssessmentResult.FAILURE)
.message("Main feed " + mainFeed.getName() + " has never executed.");
} else {
// If the "since" feed has never run then the tested feed has run before it.
if (triggeredFeedOps.isEmpty()) {
LOG.debug("Triggered feed ops is empty");
builder
.result(AssessmentResult.SUCCESS)
.message("Triggered feed " + triggeredFeed.getName() + " has never executed");
} else {
DateTime mainFeedStopTime = mainFeedOps.get(0).getStopTime();
DateTime triggeredFeedStartTime = triggeredFeedOps.get(0).getStartTime();
LOG.debug("Main feed stop time {}", mainFeedStopTime);
LOG.debug("Triggered feed start time {}", triggeredFeedStartTime);
if (mainFeedStopTime.isBefore(triggeredFeedStartTime)) {
LOG.debug("Main feed stop time is before triggered feed start time");
builder
.result(AssessmentResult.FAILURE)
.message("Main feed " + mainFeed.getName() + " has not executed since triggered feed "
+ triggeredFeed.getName() + ": " + triggeredFeedStartTime);
} else {
LOG.debug("Main feed stop time is after triggered feed start time");
boolean isMainFeedRunning = opsProvider.isFeedRunning(mainFeed.getId());
if (isMainFeedRunning) {
//todo whether to trigger the feed while the other one is already running should be a
// configuration parameter defined by the user
LOG.debug("Main feed is still running");
builder
.result(AssessmentResult.SUCCESS)
.message(
"Triggered feed " + triggeredFeed.getName() + " has executed since feed " + mainFeed.getName() + ", but main feed " + mainFeed.getName() + " is still running");
} else {
LOG.debug("Main is not running");
builder
.result(AssessmentResult.SUCCESS)
.message("Triggered feed " + triggeredFeed.getName() + " has executed since main feed " + mainFeed.getName() + ".");
}
}
}
}
} else {
LOG.debug("Either triggered or main feed does not exist");
builder
.result(AssessmentResult.FAILURE)
.message("Either feed " + metric.getSinceCategoryAndFeedName() + " and/or feed " + metric.getSinceCategoryAndFeedName() + " does not exist.");
}
}
}