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

Example 1 with ExternalFileTupleTranslator

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

the class MetadataNode method getExternalFiles.

@Override
public List<ExternalFile> getExternalFiles(JobId jobId, Dataset dataset) throws MetadataException, RemoteException {
    try {
        ITupleReference searchKey = createTuple(dataset.getDataverseName(), dataset.getDatasetName());
        ExternalFileTupleTranslator tupleReaderWriter = tupleTranslatorProvider.getExternalFileTupleTranslator(false);
        IValueExtractor<ExternalFile> valueExtractor = new MetadataEntityValueExtractor<>(tupleReaderWriter);
        List<ExternalFile> results = new ArrayList<>();
        searchIndex(jobId, MetadataPrimaryIndexes.EXTERNAL_FILE_DATASET, searchKey, valueExtractor, results);
        return results;
    } catch (HyracksDataException e) {
        throw new MetadataException(e);
    }
}

Example 2 with ExternalFileTupleTranslator

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

the class MetadataNode method getExternalFile.

@Override
public ExternalFile getExternalFile(JobId jobId, String dataverseName, String datasetName, Integer fileNumber) throws MetadataException, RemoteException {
    try {
        ITupleReference searchKey = createExternalFileSearchTuple(dataverseName, datasetName, fileNumber);
        ExternalFileTupleTranslator tupleReaderWriter = tupleTranslatorProvider.getExternalFileTupleTranslator(false);
        IValueExtractor<ExternalFile> valueExtractor = new MetadataEntityValueExtractor<>(tupleReaderWriter);
        List<ExternalFile> results = new ArrayList<>();
        searchIndex(jobId, MetadataPrimaryIndexes.EXTERNAL_FILE_DATASET, searchKey, valueExtractor, results);
        if (results.isEmpty()) {
            return null;
        }
        return results.get(0);
    } catch (HyracksDataException e) {
        throw new MetadataException(e);
    }
}

Example 3 with ExternalFileTupleTranslator

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

the class MetadataNode method addExternalFile.

@Override
public void addExternalFile(JobId jobId, ExternalFile externalFile) throws MetadataException, RemoteException {
    try {
        // Insert into the 'externalFiles' dataset.
        ExternalFileTupleTranslator tupleReaderWriter = tupleTranslatorProvider.getExternalFileTupleTranslator(true);
        ITupleReference externalFileTuple = tupleReaderWriter.getTupleFromMetadataEntity(externalFile);
        insertTupleIntoIndex(jobId, MetadataPrimaryIndexes.EXTERNAL_FILE_DATASET, externalFileTuple);
    } catch (HyracksDataException e) {
        if (e.getComponent().equals(ErrorCode.HYRACKS) && e.getErrorCode() == ErrorCode.DUPLICATE_KEY) {
            throw new MetadataException("An externalFile with this number " + externalFile.getFileNumber() + " already exists in dataset '" + externalFile.getDatasetName() + "' in dataverse '" + externalFile.getDataverseName() + "'.", e);
        } else {
            throw new MetadataException(e);
        }
    } catch (ACIDException e) {
        throw new MetadataException(e);
    }
}