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

Example 1 with DatasetTupleTranslator

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

the class MetadataNode method getDataset.

@Override
public Dataset getDataset(JobId jobId, String dataverseName, String datasetName) throws MetadataException, RemoteException {
    try {
        ITupleReference searchKey = createTuple(dataverseName, datasetName);
        DatasetTupleTranslator tupleReaderWriter = tupleTranslatorProvider.getDatasetTupleTranslator(false);
        List<Dataset> results = new ArrayList<>();
        IValueExtractor<Dataset> valueExtractor = new MetadataEntityValueExtractor<>(tupleReaderWriter);
        searchIndex(jobId, MetadataPrimaryIndexes.DATASET_DATASET, searchKey, valueExtractor, results);
        if (results.isEmpty()) {
            return null;
        }
        return results.get(0);
    } catch (HyracksDataException e) {
        throw new MetadataException(e);
    }
}

Example 2 with DatasetTupleTranslator

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

the class MetadataNode method getDataverseDatasets.

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

Example 3 with DatasetTupleTranslator

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

the class MetadataNode method getAllDatasets.

public List<Dataset> getAllDatasets(JobId jobId) throws MetadataException, RemoteException {
    try {
        ITupleReference searchKey = null;
        DatasetTupleTranslator tupleReaderWriter = tupleTranslatorProvider.getDatasetTupleTranslator(false);
        IValueExtractor<Dataset> valueExtractor = new MetadataEntityValueExtractor<>(tupleReaderWriter);
        List<Dataset> results = new ArrayList<>();
        searchIndex(jobId, MetadataPrimaryIndexes.DATASET_DATASET, searchKey, valueExtractor, results);
        return results;
    } catch (HyracksDataException e) {
        throw new MetadataException(e);
    }
}

Example 4 with DatasetTupleTranslator

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

the class MetadataNode method addDataset.

@Override
public void addDataset(JobId jobId, Dataset dataset) throws MetadataException, RemoteException {
    try {
        // Insert into the 'dataset' dataset.
        DatasetTupleTranslator tupleReaderWriter = tupleTranslatorProvider.getDatasetTupleTranslator(true);
        ITupleReference datasetTuple = tupleReaderWriter.getTupleFromMetadataEntity(dataset);
        insertTupleIntoIndex(jobId, MetadataPrimaryIndexes.DATASET_DATASET, datasetTuple);
        if (dataset.getDatasetType() == DatasetType.INTERNAL) {
            // Add the primary index for the dataset.
            InternalDatasetDetails id = (InternalDatasetDetails) dataset.getDatasetDetails();
            Index primaryIndex = new Index(dataset.getDataverseName(), dataset.getDatasetName(), dataset.getDatasetName(), IndexType.BTREE, id.getPrimaryKey(), id.getKeySourceIndicator(), id.getPrimaryKeyType(), false, true, dataset.getPendingOp());
            addIndex(jobId, primaryIndex);
        }
    } catch (HyracksDataException e) {
        if (e.getComponent().equals(ErrorCode.HYRACKS) && e.getErrorCode() == ErrorCode.DUPLICATE_KEY) {
            throw new MetadataException("A dataset with this name " + dataset.getDatasetName() + " already exists in dataverse '" + dataset.getDataverseName() + "'.", e);
        } else {
            throw new MetadataException(e);
        }
    } catch (ACIDException e) {
        throw new MetadataException(e);
    }
}

Example 5 with DatasetTupleTranslator

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

the class MetadataNode method updateDataset.

@Override
public void updateDataset(JobId jobId, Dataset dataset) throws MetadataException, RemoteException {
    try {
        // This method will delete previous entry of the dataset and insert the new one
        // Delete entry from the 'datasets' dataset.
        ITupleReference searchKey;
        searchKey = createTuple(dataset.getDataverseName(), dataset.getDatasetName());
        // Searches the index for the tuple to be deleted. Acquires an S
        // lock on the 'dataset' dataset.
        ITupleReference datasetTuple = getTupleToBeDeleted(jobId, MetadataPrimaryIndexes.DATASET_DATASET, searchKey);
        deleteTupleFromIndex(jobId, MetadataPrimaryIndexes.DATASET_DATASET, datasetTuple);
        // Previous tuple was deleted
        // Insert into the 'dataset' dataset.
        DatasetTupleTranslator tupleReaderWriter = tupleTranslatorProvider.getDatasetTupleTranslator(true);
        datasetTuple = tupleReaderWriter.getTupleFromMetadataEntity(dataset);
        insertTupleIntoIndex(jobId, MetadataPrimaryIndexes.DATASET_DATASET, datasetTuple);
    } catch (HyracksDataException | ACIDException e) {
        throw new MetadataException(e);
    }
}