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

Example 21 with ITupleReference

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

the class MetadataNode method dropFeed.

@Override
public void dropFeed(JobId jobId, String dataverse, String feedName) throws MetadataException, RemoteException {
    try {
        ITupleReference searchKey = createTuple(dataverse, feedName);
        // Searches the index for the tuple to be deleted. Acquires an S
        // lock on the 'nodegroup' dataset.
        ITupleReference tuple = getTupleToBeDeleted(jobId, MetadataPrimaryIndexes.FEED_DATASET, searchKey);
        deleteTupleFromIndex(jobId, MetadataPrimaryIndexes.FEED_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 feed '" + feedName + "' because it doesn't exist", e);
        } else {
            throw new MetadataException(e);
        }
    } catch (ACIDException e) {
        throw new MetadataException(e);
    }
}

Example 22 with ITupleReference

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

the class MetadataNode method dropAdapter.

@Override
public void dropAdapter(JobId jobId, String dataverseName, String adapterName) throws MetadataException, RemoteException {
    DatasourceAdapter adapter = getAdapter(jobId, dataverseName, adapterName);
    if (adapter == null) {
        throw new MetadataException("Cannot drop adapter '" + adapter + "' because it doesn't exist.");
    }
    try {
        // Delete entry from the 'Adapter' dataset.
        ITupleReference searchKey = createTuple(dataverseName, adapterName);
        // Searches the index for the tuple to be deleted. Acquires an S
        // lock on the 'Adapter' dataset.
        ITupleReference datasetTuple = getTupleToBeDeleted(jobId, MetadataPrimaryIndexes.DATASOURCE_ADAPTER_DATASET, searchKey);
        deleteTupleFromIndex(jobId, MetadataPrimaryIndexes.DATASOURCE_ADAPTER_DATASET, datasetTuple);
    // 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 adapter '" + adapterName + " since it doesn't exist", e);
        } else {
            throw new MetadataException(e);
        }
    } catch (ACIDException e) {
        throw new MetadataException(e);
    }
}

Example 23 with ITupleReference

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

the class MetadataNode method dropExternalFile.

@Override
public void dropExternalFile(JobId jobId, String dataverseName, String datasetName, int fileNumber) throws MetadataException, RemoteException {
    try {
        // Delete entry from the 'ExternalFile' dataset.
        ITupleReference searchKey = createExternalFileSearchTuple(dataverseName, datasetName, fileNumber);
        // Searches the index for the tuple to be deleted. Acquires an S
        // lock on the 'ExternalFile' dataset.
        ITupleReference datasetTuple = getTupleToBeDeleted(jobId, MetadataPrimaryIndexes.EXTERNAL_FILE_DATASET, searchKey);
        deleteTupleFromIndex(jobId, MetadataPrimaryIndexes.EXTERNAL_FILE_DATASET, datasetTuple);
    } catch (HyracksDataException e) {
        if (e.getComponent().equals(ErrorCode.HYRACKS) && e.getErrorCode() == ErrorCode.UPDATE_OR_DELETE_NON_EXISTENT_KEY) {
            throw new MetadataException("Couldn't drop externalFile.", e);
        } else {
            throw new MetadataException(e);
        }
    } catch (ACIDException e) {
        throw new MetadataException(e);
    }
}

Example 24 with ITupleReference

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

the class MetadataNode method getFeedConnections.

@Override
public List<FeedConnection> getFeedConnections(JobId jobId, String dataverseName, String feedName) throws MetadataException, RemoteException {
    try {
        ITupleReference searchKey = createTuple(dataverseName, feedName);
        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);
        return results;
    } catch (HyracksDataException e) {
        throw new MetadataException(e);
    }
}

Example 25 with ITupleReference

use of org.apache.hyracks.dataflow.common.data.accessors.ITupleReference 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);
    }
}