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

Example 96 with ITupleReference

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

the class MetadataNode method dropIndex.

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

Example 97 with ITupleReference

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

the class MetadataNode method addFeedPolicy.

@Override
public void addFeedPolicy(JobId jobId, FeedPolicyEntity feedPolicy) throws MetadataException, RemoteException {
    try {
        // Insert into the 'FeedPolicy' dataset.
        FeedPolicyTupleTranslator tupleReaderWriter = tupleTranslatorProvider.getFeedPolicyTupleTranslator(true);
        ITupleReference feedPolicyTuple = tupleReaderWriter.getTupleFromMetadataEntity(feedPolicy);
        insertTupleIntoIndex(jobId, MetadataPrimaryIndexes.FEED_POLICY_DATASET, feedPolicyTuple);
    } catch (HyracksDataException e) {
        if (e.getComponent().equals(ErrorCode.HYRACKS) && e.getErrorCode() == ErrorCode.DUPLICATE_KEY) {
            throw new MetadataException("A feed policy with this name " + feedPolicy.getPolicyName() + " already exists in dataverse '" + feedPolicy.getPolicyName() + "'.", e);
        } else {
            throw new MetadataException(e);
        }
    } catch (ACIDException e) {
        throw new MetadataException(e);
    }
}

Example 98 with ITupleReference

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

the class MetadataNode method deleteEntity.

/**
     * Delete entity from index
     *
     * @param jobId
     * @param entity
     * @param tupleTranslator
     * @param index
     * @throws MetadataException
     */
private <T> void deleteEntity(JobId jobId, T entity, IMetadataEntityTupleTranslator<T> tupleTranslator, IMetadataIndex index) throws MetadataException {
    try {
        ITupleReference tuple = tupleTranslator.getTupleFromMetadataEntity(entity);
        deleteTupleFromIndex(jobId, index, tuple);
    } catch (HyracksDataException | ACIDException e) {
        throw new MetadataException(e);
    }
}

Example 99 with ITupleReference

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

the class MetadataNode method dropLibrary.

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

Example 100 with ITupleReference

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

the class MetadataNode method initializeDatasetIdFactory.

@Override
public void initializeDatasetIdFactory(JobId jobId) throws MetadataException, RemoteException {
    int mostRecentDatasetId = MetadataIndexImmutableProperties.FIRST_AVAILABLE_USER_DATASET_ID;
    try {
        String resourceName = MetadataPrimaryIndexes.DATASET_DATASET.getFile().getRelativePath();
        IIndex indexInstance = datasetLifecycleManager.get(resourceName);
        datasetLifecycleManager.open(resourceName);
        try {
            IIndexAccessor indexAccessor = indexInstance.createAccessor(NoOpOperationCallback.INSTANCE, NoOpOperationCallback.INSTANCE);
            IIndexCursor rangeCursor = indexAccessor.createSearchCursor(false);
            DatasetTupleTranslator tupleReaderWriter = tupleTranslatorProvider.getDatasetTupleTranslator(false);
            IValueExtractor<Dataset> valueExtractor = new MetadataEntityValueExtractor<>(tupleReaderWriter);
            RangePredicate rangePred = new RangePredicate(null, null, true, true, null, null);
            indexAccessor.search(rangeCursor, rangePred);
            int datasetId;
            try {
                while (rangeCursor.hasNext()) {
                    rangeCursor.next();
                    final ITupleReference ref = rangeCursor.getTuple();
                    final Dataset ds = valueExtractor.getValue(jobId, ref);
                    datasetId = ds.getDatasetId();
                    if (mostRecentDatasetId < datasetId) {
                        mostRecentDatasetId = datasetId;
                    }
                }
            } finally {
                rangeCursor.close();
            }
        } finally {
            datasetLifecycleManager.close(resourceName);
        }
    } catch (HyracksDataException e) {
        throw new MetadataException(e);
    }
    DatasetIdFactory.initialize(mostRecentDatasetId);
}