Examples with PreconditionPolicyTransformer com.thinkbiganalytics.policy.precondition.transform.PreconditionPolicyTransformer used on opensource projects

Example 1 with PreconditionPolicyTransformer

use of com.thinkbiganalytics.policy.precondition.transform.PreconditionPolicyTransformer in project kylo by Teradata.

the class DefaultFeedManagerFeedService method assignFeedDependencies.

/**
 * Looks for the Feed Preconditions and assigns the Feed Dependencies
 */
private void assignFeedDependencies(FeedMetadata feed, Feed domainFeed) {
    final Feed.ID domainFeedId = domainFeed.getId();
    List<PreconditionRule> preconditions = feed.getSchedule().getPreconditions();
    if (preconditions != null) {
        PreconditionPolicyTransformer transformer = new PreconditionPolicyTransformer(preconditions);
        transformer.applyFeedNameToCurrentFeedProperties(feed.getCategory().getSystemName(), feed.getSystemFeedName());
        List<com.thinkbiganalytics.metadata.rest.model.sla.ObligationGroup> transformedPreconditions = transformer.getPreconditionObligationGroups();
        ServiceLevelAgreementBuilder preconditionBuilder = feedProvider.buildPrecondition(domainFeed.getId()).name("Precondition for feed " + feed.getCategoryAndFeedName() + "  (" + domainFeed.getId() + ")");
        for (com.thinkbiganalytics.metadata.rest.model.sla.ObligationGroup precondition : transformedPreconditions) {
            for (Obligation group : precondition.getObligations()) {
                preconditionBuilder.obligationGroupBuilder(ObligationGroup.Condition.valueOf(precondition.getCondition())).obligationBuilder().metric(group.getMetrics()).build();
            }
        }
        preconditionBuilder.build();
        // add in the lineage dependency relationships
        // will the feed exist in the jcr store here if it is new??
        // store the existing list of dependent feeds to track and delete those that dont match
        Set<Feed.ID> oldDependentFeedIds = new HashSet<Feed.ID>();
        Set<Feed.ID> newDependentFeedIds = new HashSet<Feed.ID>();
        List<Feed> dependentFeeds = domainFeed.getDependentFeeds();
        if (dependentFeeds != null && !dependentFeeds.isEmpty()) {
            dependentFeeds.stream().forEach(dependentFeed -> {
                oldDependentFeedIds.add(dependentFeed.getId());
            });
        }
        // find those preconditions that are marked as dependent feed types
        List<Precondition> preconditionPolicies = transformer.getPreconditionPolicies();
        preconditionPolicies.stream().filter(precondition -> precondition instanceof DependentFeedPrecondition).forEach(dependentFeedPrecondition -> {
            DependentFeedPrecondition feedPrecondition = (DependentFeedPrecondition) dependentFeedPrecondition;
            List<String> dependentFeedNames = feedPrecondition.getDependentFeedNames();
            if (dependentFeedNames != null && !dependentFeedNames.isEmpty()) {
                // find the feed
                for (String dependentFeedName : dependentFeedNames) {
                    Feed dependentFeed = feedProvider.findBySystemName(dependentFeedName);
                    if (dependentFeed != null) {
                        Feed.ID newDependentFeedId = dependentFeed.getId();
                        newDependentFeedIds.add(newDependentFeedId);
                        // add and persist it if it doesnt already exist
                        if (!oldDependentFeedIds.contains(newDependentFeedId)) {
                            feedProvider.addDependent(domainFeedId, dependentFeed.getId());
                        }
                    }
                }
            }
        });
        // delete any of those dependent feed ids from the oldDependentFeeds that are not part of the newDependentFeedIds
        oldDependentFeedIds.stream().filter(oldFeedId -> !newDependentFeedIds.contains(oldFeedId)).forEach(dependentFeedToDelete -> feedProvider.removeDependent(domainFeedId, dependentFeedToDelete));
    }
}