Examples with FeedTupleTranslator org.apache.asterix.metadata.entitytupletranslators.FeedTupleTranslator used on opensource projects

Example 1 with FeedTupleTranslator

use of org.apache.asterix.metadata.entitytupletranslators.FeedTupleTranslator in project asterixdb by apache.

the class MetadataNode method getDataverseFeeds.

@Override
public List<Feed> getDataverseFeeds(JobId jobId, String dataverseName) throws MetadataException, RemoteException {
    try {
        ITupleReference searchKey = createTuple(dataverseName);
        FeedTupleTranslator tupleReaderWriter = tupleTranslatorProvider.getFeedTupleTranslator(false);
        IValueExtractor<Feed> valueExtractor = new MetadataEntityValueExtractor<>(tupleReaderWriter);
        List<Feed> results = new ArrayList<>();
        searchIndex(jobId, MetadataPrimaryIndexes.FEED_DATASET, searchKey, valueExtractor, results);
        return results;
    } catch (HyracksDataException e) {
        throw new MetadataException(e);
    }
}

Example 2 with FeedTupleTranslator

use of org.apache.asterix.metadata.entitytupletranslators.FeedTupleTranslator in project asterixdb by apache.

the class MetadataNode method addFeed.

@Override
public void addFeed(JobId jobId, Feed feed) throws MetadataException, RemoteException {
    try {
        // Insert into the 'Feed' dataset.
        FeedTupleTranslator tupleReaderWriter = tupleTranslatorProvider.getFeedTupleTranslator(true);
        ITupleReference feedTuple = tupleReaderWriter.getTupleFromMetadataEntity(feed);
        insertTupleIntoIndex(jobId, MetadataPrimaryIndexes.FEED_DATASET, feedTuple);
    } catch (HyracksDataException e) {
        if (e.getComponent().equals(ErrorCode.HYRACKS) && e.getErrorCode() == ErrorCode.DUPLICATE_KEY) {
            throw new MetadataException("A feed with this name " + feed.getFeedName() + " already exists in dataverse '" + feed.getDataverseName() + "'.", e);
        } else {
            throw new MetadataException(e);
        }
    } catch (ACIDException e) {
        throw new MetadataException(e);
    }
}

Example 3 with FeedTupleTranslator

use of org.apache.asterix.metadata.entitytupletranslators.FeedTupleTranslator in project asterixdb by apache.

the class MetadataNode method getFeed.

@Override
public Feed getFeed(JobId jobId, String dataverse, String feedName) throws MetadataException, RemoteException {
    try {
        ITupleReference searchKey = createTuple(dataverse, feedName);
        FeedTupleTranslator tupleReaderWriter = tupleTranslatorProvider.getFeedTupleTranslator(false);
        List<Feed> results = new ArrayList<>();
        IValueExtractor<Feed> valueExtractor = new MetadataEntityValueExtractor<>(tupleReaderWriter);
        searchIndex(jobId, MetadataPrimaryIndexes.FEED_DATASET, searchKey, valueExtractor, results);
        if (!results.isEmpty()) {
            return results.get(0);
        }
        return null;
    } catch (HyracksDataException e) {
        throw new MetadataException(e);
    }
}