Examples with LSMPrimaryUpsertOperatorDescriptor org.apache.asterix.runtime.operators.LSMPrimaryUpsertOperatorDescriptor used on opensource projects

Example 1 with LSMPrimaryUpsertOperatorDescriptor

use of org.apache.asterix.runtime.operators.LSMPrimaryUpsertOperatorDescriptor in project asterixdb by apache.

the class DatasetUtil method createPrimaryIndexUpsertOp.

/**
     * Creates a primary index upsert operator for a given dataset.
     *
     * @param spec,
     *            the job specification.
     * @param metadataProvider,
     *            the metadata provider.
     * @param dataset,
     *            the dataset to upsert.
     * @param inputRecordDesc,the
     *            record descriptor for an input tuple.
     * @param fieldPermutation,
     *            the field permutation according to the input.
     * @param missingWriterFactory,
     *            the factory for customizing missing value serialization.
     * @return a primary index scan operator and its location constraints.
     * @throws AlgebricksException
     */
public static Pair<IOperatorDescriptor, AlgebricksPartitionConstraint> createPrimaryIndexUpsertOp(JobSpecification spec, MetadataProvider metadataProvider, Dataset dataset, RecordDescriptor inputRecordDesc, int[] fieldPermutation, IMissingWriterFactory missingWriterFactory) throws AlgebricksException {
    int numKeys = dataset.getPrimaryKeys().size();
    int numFilterFields = DatasetUtil.getFilterField(dataset) == null ? 0 : 1;
    ARecordType itemType = (ARecordType) metadataProvider.findType(dataset);
    ARecordType metaItemType = (ARecordType) metadataProvider.findMetaType(dataset);
    try {
        Index primaryIndex = metadataProvider.getIndex(dataset.getDataverseName(), dataset.getDatasetName(), dataset.getDatasetName());
        Pair<IFileSplitProvider, AlgebricksPartitionConstraint> splitsAndConstraint = metadataProvider.getSplitProviderAndConstraints(dataset);
        // prepare callback
        JobId jobId = ((JobEventListenerFactory) spec.getJobletEventListenerFactory()).getJobId();
        int[] primaryKeyFields = new int[numKeys];
        for (int i = 0; i < numKeys; i++) {
            primaryKeyFields[i] = i;
        }
        boolean hasSecondaries = metadataProvider.getDatasetIndexes(dataset.getDataverseName(), dataset.getDatasetName()).size() > 1;
        IStorageComponentProvider storageComponentProvider = metadataProvider.getStorageComponentProvider();
        IModificationOperationCallbackFactory modificationCallbackFactory = dataset.getModificationCallbackFactory(storageComponentProvider, primaryIndex, jobId, IndexOperation.UPSERT, primaryKeyFields);
        ISearchOperationCallbackFactory searchCallbackFactory = dataset.getSearchCallbackFactory(storageComponentProvider, primaryIndex, jobId, IndexOperation.UPSERT, primaryKeyFields);
        IIndexDataflowHelperFactory idfh = new IndexDataflowHelperFactory(storageComponentProvider.getStorageManager(), splitsAndConstraint.first);
        LSMPrimaryUpsertOperatorDescriptor op;
        ITypeTraits[] outputTypeTraits = new ITypeTraits[inputRecordDesc.getFieldCount() + (dataset.hasMetaPart() ? 2 : 1) + numFilterFields];
        ISerializerDeserializer<?>[] outputSerDes = new ISerializerDeserializer[inputRecordDesc.getFieldCount() + (dataset.hasMetaPart() ? 2 : 1) + numFilterFields];
        // add the previous record first
        int f = 0;
        outputSerDes[f] = FormatUtils.getDefaultFormat().getSerdeProvider().getSerializerDeserializer(itemType);
        f++;
        // add the previous meta second
        if (dataset.hasMetaPart()) {
            outputSerDes[f] = FormatUtils.getDefaultFormat().getSerdeProvider().getSerializerDeserializer(metaItemType);
            outputTypeTraits[f] = FormatUtils.getDefaultFormat().getTypeTraitProvider().getTypeTrait(metaItemType);
            f++;
        }
        // add the previous filter third
        int fieldIdx = -1;
        if (numFilterFields > 0) {
            String filterField = DatasetUtil.getFilterField(dataset).get(0);
            String[] fieldNames = itemType.getFieldNames();
            int i = 0;
            for (; i < fieldNames.length; i++) {
                if (fieldNames[i].equals(filterField)) {
                    break;
                }
            }
            fieldIdx = i;
            outputTypeTraits[f] = FormatUtils.getDefaultFormat().getTypeTraitProvider().getTypeTrait(itemType.getFieldTypes()[fieldIdx]);
            outputSerDes[f] = FormatUtils.getDefaultFormat().getSerdeProvider().getSerializerDeserializer(itemType.getFieldTypes()[fieldIdx]);
            f++;
        }
        for (int j = 0; j < inputRecordDesc.getFieldCount(); j++) {
            outputTypeTraits[j + f] = inputRecordDesc.getTypeTraits()[j];
            outputSerDes[j + f] = inputRecordDesc.getFields()[j];
        }
        RecordDescriptor outputRecordDesc = new RecordDescriptor(outputSerDes, outputTypeTraits);
        op = new LSMPrimaryUpsertOperatorDescriptor(spec, outputRecordDesc, fieldPermutation, idfh, missingWriterFactory, modificationCallbackFactory, searchCallbackFactory, dataset.getFrameOpCallbackFactory(), numKeys, itemType, fieldIdx, hasSecondaries);
        return new Pair<>(op, splitsAndConstraint.second);
    } catch (MetadataException me) {
        throw new AlgebricksException(me);
    }
}