Examples with ITupleReference org.apache.hyracks.dataflow.common.data.accessors.ITupleReference used on opensource projects

Example 16 with ITupleReference

use of org.apache.hyracks.dataflow.common.data.accessors.ITupleReference in project asterixdb by apache.

the class MetadataNode method getFunction.

@Override
public Function getFunction(JobId jobId, FunctionSignature functionSignature) throws MetadataException, RemoteException {
    try {
        ITupleReference searchKey = createTuple(functionSignature.getNamespace(), functionSignature.getName(), "" + functionSignature.getArity());
        FunctionTupleTranslator tupleReaderWriter = tupleTranslatorProvider.getFunctionTupleTranslator(false);
        List<Function> results = new ArrayList<>();
        IValueExtractor<Function> valueExtractor = new MetadataEntityValueExtractor<>(tupleReaderWriter);
        searchIndex(jobId, MetadataPrimaryIndexes.FUNCTION_DATASET, searchKey, valueExtractor, results);
        if (results.isEmpty()) {
            return null;
        }
        return results.get(0);
    } catch (HyracksDataException e) {
        throw new MetadataException(e);
    }
}

Example 17 with ITupleReference

use of org.apache.hyracks.dataflow.common.data.accessors.ITupleReference in project asterixdb by apache.

the class MetadataNode method getFeedConnection.

@Override
public FeedConnection getFeedConnection(JobId jobId, String dataverseName, String feedName, String datasetName) throws MetadataException, RemoteException {
    try {
        ITupleReference searchKey = createTuple(dataverseName, feedName, datasetName);
        FeedConnectionTupleTranslator tupleReaderWriter = new FeedConnectionTupleTranslator(false);
        List<FeedConnection> results = new ArrayList<>();
        IValueExtractor<FeedConnection> valueExtractor = new MetadataEntityValueExtractor<>(tupleReaderWriter);
        searchIndex(jobId, MetadataPrimaryIndexes.FEED_CONNECTION_DATASET, searchKey, valueExtractor, results);
        if (!results.isEmpty()) {
            return results.get(0);
        }
        return null;
    } catch (HyracksDataException e) {
        throw new MetadataException(e);
    }
}

Example 18 with ITupleReference

use of org.apache.hyracks.dataflow.common.data.accessors.ITupleReference in project asterixdb by apache.

the class MetadataNode method addIndex.

@Override
public void addIndex(JobId jobId, Index index) throws MetadataException, RemoteException {
    try {
        IndexTupleTranslator tupleWriter = tupleTranslatorProvider.getIndexTupleTranslator(jobId, this, true);
        ITupleReference tuple = tupleWriter.getTupleFromMetadataEntity(index);
        insertTupleIntoIndex(jobId, MetadataPrimaryIndexes.INDEX_DATASET, tuple);
    } catch (HyracksDataException e) {
        if (e.getComponent().equals(ErrorCode.HYRACKS) && e.getErrorCode() == ErrorCode.DUPLICATE_KEY) {
            throw new MetadataException("An index with name '" + index.getIndexName() + "' already exists.", e);
        } else {
            throw new MetadataException(e);
        }
    } catch (ACIDException e) {
        throw new MetadataException(e);
    }
}

Example 19 with ITupleReference

use of org.apache.hyracks.dataflow.common.data.accessors.ITupleReference 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 20 with ITupleReference

use of org.apache.hyracks.dataflow.common.data.accessors.ITupleReference in project asterixdb by apache.

the class MetadataNode method forceDropDatatype.

private void forceDropDatatype(JobId jobId, String dataverseName, String datatypeName) throws MetadataException, RemoteException {
    try {
        ITupleReference searchKey = createTuple(dataverseName, datatypeName);
        // Searches the index for the tuple to be deleted. Acquires an S
        // lock on the 'datatype' dataset.
        ITupleReference tuple = getTupleToBeDeleted(jobId, MetadataPrimaryIndexes.DATATYPE_DATASET, searchKey);
        deleteTupleFromIndex(jobId, MetadataPrimaryIndexes.DATATYPE_DATASET, tuple);
    // TODO: Change this to be a BTree specific exception, e.g.,
    // BTreeKeyDoesNotExistException.
    } catch (HyracksDataException e) {
        if (e.getComponent().equals(ErrorCode.HYRACKS) && e.getErrorCode() == ErrorCode.UPDATE_OR_DELETE_NON_EXISTENT_KEY) {
            throw new MetadataException("Cannot drop type '" + datatypeName + "' because it doesn't exist", e);
        } else {
            throw new MetadataException(e);
        }
    } catch (ACIDException e) {
        throw new MetadataException(e);
    }
}