Examples with AListVisitablePointable org.apache.asterix.om.pointables.AListVisitablePointable used on opensource projects

Example 1 with AListVisitablePointable

use of org.apache.asterix.om.pointables.AListVisitablePointable in project asterixdb by apache.

the class RecordAddFieldsDescriptor method createEvaluatorFactory.

@Override
public IScalarEvaluatorFactory createEvaluatorFactory(final IScalarEvaluatorFactory[] args) {
    return new IScalarEvaluatorFactory() {

        private static final long serialVersionUID = 1L;

        @Override
        public IScalarEvaluator createScalarEvaluator(final IHyracksTaskContext ctx) throws HyracksDataException {
            final PointableAllocator allocator = new PointableAllocator();
            final IVisitablePointable vp0 = allocator.allocateRecordValue(inRecType);
            final IVisitablePointable vp1 = allocator.allocateListValue(inListType);
            final IPointable argPtr0 = new VoidPointable();
            final IPointable argPtr1 = new VoidPointable();
            final IScalarEvaluator eval0 = args[0].createScalarEvaluator(ctx);
            final IScalarEvaluator eval1 = args[1].createScalarEvaluator(ctx);
            final ArrayBackedValueStorage fieldNamePointable = new ArrayBackedValueStorage();
            final ArrayBackedValueStorage fieldValuePointer = new ArrayBackedValueStorage();
            final PointableHelper pointableHelper = new PointableHelper();
            try {
                pointableHelper.serializeString("field-name", fieldNamePointable, true);
                pointableHelper.serializeString("field-value", fieldValuePointer, true);
            } catch (AsterixException e) {
                throw new HyracksDataException(e);
            }
            return new IScalarEvaluator() {

                // the default 32k frame size
                public static final int TABLE_FRAME_SIZE = 32768;

                // the default 32k frame size
                public static final int TABLE_SIZE = 100;

                private final RecordBuilder recordBuilder = new RecordBuilder();

                private final RuntimeRecordTypeInfo requiredRecordTypeInfo = new RuntimeRecordTypeInfo();

                private final IBinaryHashFunction putHashFunc = ListItemBinaryHashFunctionFactory.INSTANCE.createBinaryHashFunction();

                private final IBinaryHashFunction getHashFunc = ListItemBinaryHashFunctionFactory.INSTANCE.createBinaryHashFunction();

                private final BinaryEntry keyEntry = new BinaryEntry();

                private final BinaryEntry valEntry = new BinaryEntry();

                private final IVisitablePointable tempValReference = allocator.allocateEmpty();

                private final IBinaryComparator cmp = ListItemBinaryComparatorFactory.INSTANCE.createBinaryComparator();

                private BinaryHashMap hashMap = new BinaryHashMap(TABLE_SIZE, TABLE_FRAME_SIZE, putHashFunc, getHashFunc, cmp);

                private ArrayBackedValueStorage resultStorage = new ArrayBackedValueStorage();

                private DataOutput out = resultStorage.getDataOutput();

                @Override
                public void evaluate(IFrameTupleReference tuple, IPointable result) throws HyracksDataException {
                    resultStorage.reset();
                    recordBuilder.reset(outRecType);
                    requiredRecordTypeInfo.reset(outRecType);
                    eval0.evaluate(tuple, argPtr0);
                    eval1.evaluate(tuple, argPtr1);
                    // Make sure we get a valid record
                    byte typeTag0 = argPtr0.getByteArray()[argPtr0.getStartOffset()];
                    if (typeTag0 != ATypeTag.SERIALIZED_RECORD_TYPE_TAG) {
                        throw new TypeMismatchException(getIdentifier(), 0, typeTag0, ATypeTag.SERIALIZED_RECORD_TYPE_TAG);
                    }
                    // Make sure we get a valid list
                    byte typeTag1 = argPtr1.getByteArray()[argPtr1.getStartOffset()];
                    if (typeTag1 != ATypeTag.SERIALIZED_ORDEREDLIST_TYPE_TAG) {
                        throw new TypeMismatchException(getIdentifier(), 1, typeTag1, ATypeTag.SERIALIZED_ORDEREDLIST_TYPE_TAG);
                    }
                    vp0.set(argPtr0);
                    vp1.set(argPtr1);
                    ARecordVisitablePointable recordPointable = (ARecordVisitablePointable) vp0;
                    AListVisitablePointable listPointable = (AListVisitablePointable) vp1;
                    // Initialize our hashmap
                    int tableSize = recordPointable.getFieldNames().size() + listPointable.getItems().size();
                    // Thus avoiding unnecessary object construction
                    if (hashMap == null || tableSize > TABLE_SIZE) {
                        hashMap = new BinaryHashMap(tableSize, TABLE_FRAME_SIZE, putHashFunc, getHashFunc, cmp);
                    } else {
                        hashMap.clear();
                    }
                    addFields(recordPointable, listPointable);
                    recordBuilder.write(out, true);
                    result.set(resultStorage);
                }

                private void addFields(ARecordVisitablePointable inputRecordPointer, AListVisitablePointable listPointable) throws HyracksDataException {
                    List<IVisitablePointable> inputRecordFieldNames = inputRecordPointer.getFieldNames();
                    List<IVisitablePointable> inputRecordFieldValues = inputRecordPointer.getFieldValues();
                    List<IVisitablePointable> inputFields = listPointable.getItems();
                    IVisitablePointable namePointable = null;
                    IVisitablePointable valuePointable = null;
                    int numInputRecordFields = inputRecordFieldNames.size();
                    try {
                        // Add original record without duplicate checking
                        for (int i = 0; i < numInputRecordFields; ++i) {
                            IVisitablePointable fnp = inputRecordFieldNames.get(i);
                            IVisitablePointable fvp = inputRecordFieldValues.get(i);
                            int pos = requiredRecordTypeInfo.getFieldIndex(fnp.getByteArray(), fnp.getStartOffset() + 1, fnp.getLength() - 1);
                            if (pos >= 0) {
                                recordBuilder.addField(pos, fvp);
                            } else {
                                recordBuilder.addField(fnp, fvp);
                            }
                            keyEntry.set(fnp.getByteArray(), fnp.getStartOffset(), fnp.getLength());
                            valEntry.set(fvp.getByteArray(), fvp.getStartOffset(), fvp.getLength());
                            hashMap.put(keyEntry, valEntry);
                        }
                        // Get the fields from a list of records
                        for (int i = 0; i < inputFields.size(); i++) {
                            if (!PointableHelper.sameType(ATypeTag.OBJECT, inputFields.get(i))) {
                                throw new AsterixException("Expected list of record, got " + PointableHelper.getTypeTag(inputFields.get(i)));
                            }
                            List<IVisitablePointable> names = ((ARecordVisitablePointable) inputFields.get(i)).getFieldNames();
                            List<IVisitablePointable> values = ((ARecordVisitablePointable) inputFields.get(i)).getFieldValues();
                            // Get name and value of the field to be added
                            // Use loop to account for the cases where users switches the order of the fields
                            IVisitablePointable fieldName;
                            for (int j = 0; j < names.size(); j++) {
                                fieldName = names.get(j);
                                // if fieldName is "field-name" then read the name
                                if (PointableHelper.byteArrayEqual(fieldNamePointable, fieldName)) {
                                    namePointable = values.get(j);
                                } else {
                                    // otherwise the fieldName is "field-value". Thus, read the value
                                    valuePointable = values.get(j);
                                }
                            }
                            if (namePointable == null || valuePointable == null) {
                                throw new InvalidDataFormatException(getIdentifier(), "fields to be added");
                            }
                            // Check that the field being added is a valid field
                            int pos = requiredRecordTypeInfo.getFieldIndex(namePointable.getByteArray(), namePointable.getStartOffset() + 1, namePointable.getLength() - 1);
                            keyEntry.set(namePointable.getByteArray(), namePointable.getStartOffset(), namePointable.getLength());
                            // Check if already in our built record
                            BinaryEntry entry = hashMap.get(keyEntry);
                            if (entry != null) {
                                tempValReference.set(entry.getBuf(), entry.getOffset(), entry.getLength());
                                // If value is not equal throw conflicting duplicate field, otherwise ignore
                                if (!PointableHelper.byteArrayEqual(valuePointable, tempValReference)) {
                                    throw new RuntimeDataException(ErrorCode.DUPLICATE_FIELD_NAME, getIdentifier());
                                }
                            } else {
                                if (pos > -1) {
                                    recordBuilder.addField(pos, valuePointable);
                                } else {
                                    recordBuilder.addField(namePointable, valuePointable);
                                }
                                valEntry.set(valuePointable.getByteArray(), valuePointable.getStartOffset(), valuePointable.getLength());
                                hashMap.put(keyEntry, valEntry);
                            }
                        }
                    } catch (AsterixException e) {
                        throw new HyracksDataException(e);
                    }
                }
            };
        }
    };
}

Example 2 with AListVisitablePointable

use of org.apache.asterix.om.pointables.AListVisitablePointable in project asterixdb by apache.

the class AObjectPrinterFactory method createPrinter.

@Override
public IPrinter createPrinter() {
    final ARecordVisitablePointable rPointable = new ARecordVisitablePointable(DefaultOpenFieldType.NESTED_OPEN_RECORD_TYPE);
    final AListVisitablePointable olPointable = new AListVisitablePointable(DefaultOpenFieldType.NESTED_OPEN_AORDERED_LIST_TYPE);
    final AListVisitablePointable ulPointable = new AListVisitablePointable(DefaultOpenFieldType.NESTED_OPEN_AUNORDERED_LIST_TYPE);
    final Pair<PrintStream, ATypeTag> streamTag = new Pair<>(null, null);
    final IPrintVisitor visitor = new APrintVisitor();
    return (byte[] b, int s, int l, PrintStream ps) -> {
        ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(b[s]);
        if (!printFlatValue(typeTag, b, s, l, ps)) {
            streamTag.first = ps;
            streamTag.second = typeTag;
            switch(typeTag) {
                case OBJECT:
                    rPointable.set(b, s, l);
                    visitor.visit(rPointable, streamTag);
                    break;
                case ARRAY:
                    olPointable.set(b, s, l);
                    visitor.visit(olPointable, streamTag);
                    break;
                case MULTISET:
                    ulPointable.set(b, s, l);
                    visitor.visit(ulPointable, streamTag);
                    break;
                default:
                    throw new HyracksDataException("No printer for type " + typeTag);
            }
        }
    };
}

Example 3 with AListVisitablePointable

use of org.apache.asterix.om.pointables.AListVisitablePointable in project asterixdb by apache.

the class AObjectPrinterFactory method createPrinter.

@Override
public IPrinter createPrinter() {
    final ARecordVisitablePointable rPointable = new ARecordVisitablePointable(DefaultOpenFieldType.NESTED_OPEN_RECORD_TYPE);
    final AListVisitablePointable olPointable = new AListVisitablePointable(DefaultOpenFieldType.NESTED_OPEN_AORDERED_LIST_TYPE);
    final AListVisitablePointable ulPointable = new AListVisitablePointable(DefaultOpenFieldType.NESTED_OPEN_AUNORDERED_LIST_TYPE);
    final Pair<PrintStream, ATypeTag> streamTag = new Pair<>(null, null);
    final IPrintVisitor visitor = new APrintVisitor();
    return (byte[] b, int s, int l, PrintStream ps) -> {
        ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(b[s]);
        if (!printFlatValue(typeTag, b, s, l, ps)) {
            streamTag.first = ps;
            streamTag.second = typeTag;
            switch(typeTag) {
                case OBJECT:
                    rPointable.set(b, s, l);
                    visitor.visit(rPointable, streamTag);
                    break;
                case ARRAY:
                    olPointable.set(b, s, l);
                    visitor.visit(olPointable, streamTag);
                    break;
                case MULTISET:
                    ulPointable.set(b, s, l);
                    visitor.visit(ulPointable, streamTag);
                    break;
                default:
                    throw new HyracksDataException("No printer for type " + typeTag);
            }
        }
    };
}

Example 4 with AListVisitablePointable

use of org.apache.asterix.om.pointables.AListVisitablePointable in project asterixdb by apache.

the class AObjectPrinterFactory method createPrinter.

@Override
public IPrinter createPrinter() {
    final ARecordVisitablePointable rPointable = new ARecordVisitablePointable(DefaultOpenFieldType.NESTED_OPEN_RECORD_TYPE);
    final AListVisitablePointable olPointable = new AListVisitablePointable(DefaultOpenFieldType.NESTED_OPEN_AORDERED_LIST_TYPE);
    final AListVisitablePointable ulPointable = new AListVisitablePointable(DefaultOpenFieldType.NESTED_OPEN_AUNORDERED_LIST_TYPE);
    final Pair<PrintStream, ATypeTag> streamTag = new Pair<>(null, null);
    final IPrintVisitor visitor = new APrintVisitor();
    return (byte[] b, int s, int l, PrintStream ps) -> {
        ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(b[s]);
        if (!printFlatValue(typeTag, b, s, l, ps)) {
            streamTag.first = ps;
            streamTag.second = typeTag;
            switch(typeTag) {
                case OBJECT:
                    rPointable.set(b, s, l);
                    visitor.visit(rPointable, streamTag);
                    break;
                case ARRAY:
                    olPointable.set(b, s, l);
                    visitor.visit(olPointable, streamTag);
                    break;
                case MULTISET:
                    ulPointable.set(b, s, l);
                    visitor.visit(ulPointable, streamTag);
                    break;
                default:
                    throw new HyracksDataException("No printer for type " + typeTag);
            }
        }
    };
}

Example 5 with AListVisitablePointable

use of org.apache.asterix.om.pointables.AListVisitablePointable in project asterixdb by apache.

the class JavaFunctionHelper method setArgument.

public void setArgument(int index, IValueReference valueReference) throws IOException, AsterixException {
    IVisitablePointable pointable = null;
    IJObject jObject = null;
    IAType type = finfo.getParamList().get(index);
    switch(type.getTypeTag()) {
        case OBJECT:
            pointable = pointableAllocator.allocateRecordValue(type);
            pointable.set(valueReference);
            jObject = pointableVisitor.visit((ARecordVisitablePointable) pointable, getTypeInfo(index, type));
            break;
        case ARRAY:
        case MULTISET:
            pointable = pointableAllocator.allocateListValue(type);
            pointable.set(valueReference);
            jObject = pointableVisitor.visit((AListVisitablePointable) pointable, getTypeInfo(index, type));
            break;
        case ANY:
            throw new RuntimeDataException(ErrorCode.LIBRARY_JAVA_FUNCTION_HELPER_CANNOT_HANDLE_ARGU_TYPE, type.getTypeTag());
        default:
            pointable = pointableAllocator.allocateFieldValue(type);
            pointable.set(valueReference);
            jObject = pointableVisitor.visit((AFlatValuePointable) pointable, getTypeInfo(index, type));
            break;
    }
    arguments[index] = jObject;
}