Examples with AUnionType org.apache.asterix.om.types.AUnionType used on opensource projects

Example 31 with AUnionType

use of org.apache.asterix.om.types.AUnionType in project asterixdb by apache.

the class FieldAccessNestedEvalFactory method createScalarEvaluator.

@Override
public IScalarEvaluator createScalarEvaluator(final IHyracksTaskContext ctx) throws HyracksDataException {
    return new IScalarEvaluator() {

        private ArrayBackedValueStorage resultStorage = new ArrayBackedValueStorage();

        private final DataOutput out = resultStorage.getDataOutput();

        private final ByteArrayAccessibleOutputStream subRecordTmpStream = new ByteArrayAccessibleOutputStream();

        private final IPointable inputArg0 = new VoidPointable();

        private final IScalarEvaluator eval0 = recordEvalFactory.createScalarEvaluator(ctx);

        private final IPointable[] fieldPointables = new VoidPointable[fieldPath.size()];

        private final RuntimeRecordTypeInfo[] recTypeInfos = new RuntimeRecordTypeInfo[fieldPath.size()];

        @SuppressWarnings("unchecked")
        private final ISerializerDeserializer<ANull> nullSerde = SerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.ANULL);

        @SuppressWarnings("unchecked")
        private final ISerializerDeserializer<AMissing> missingSerde = SerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(BuiltinType.AMISSING);

        {
            generateFieldsPointables();
            for (int index = 0; index < fieldPath.size(); ++index) {
                recTypeInfos[index] = new RuntimeRecordTypeInfo();
            }
        }

        @SuppressWarnings("unchecked")
        private void generateFieldsPointables() throws HyracksDataException {
            for (int i = 0; i < fieldPath.size(); i++) {
                ArrayBackedValueStorage storage = new ArrayBackedValueStorage();
                DataOutput out = storage.getDataOutput();
                AString as = new AString(fieldPath.get(i));
                SerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(as.getType()).serialize(as, out);
                fieldPointables[i] = new VoidPointable();
                fieldPointables[i].set(storage);
            }
        }

        @Override
        public void evaluate(IFrameTupleReference tuple, IPointable result) throws HyracksDataException {
            try {
                resultStorage.reset();
                eval0.evaluate(tuple, inputArg0);
                byte[] serRecord = inputArg0.getByteArray();
                int offset = inputArg0.getStartOffset();
                int start = offset;
                int len = inputArg0.getLength();
                if (serRecord[start] != ATypeTag.SERIALIZED_RECORD_TYPE_TAG) {
                    throw new TypeMismatchException(BuiltinFunctions.FIELD_ACCESS_NESTED, 0, serRecord[start], ATypeTag.SERIALIZED_RECORD_TYPE_TAG);
                }
                int subFieldIndex = -1;
                int subFieldOffset = -1;
                int subFieldLength = -1;
                int nullBitmapSize = -1;
                IAType subType = recordType;
                recTypeInfos[0].reset(recordType);
                ATypeTag subTypeTag = ATypeTag.MISSING;
                boolean openField = false;
                int pathIndex = 0;
                // Moving through closed fields first.
                for (; pathIndex < fieldPointables.length; pathIndex++) {
                    if (subType.getTypeTag().equals(ATypeTag.UNION)) {
                        //enforced SubType
                        subType = ((AUnionType) subType).getActualType();
                        byte serializedTypeTag = subType.getTypeTag().serialize();
                        if (serializedTypeTag != ATypeTag.SERIALIZED_RECORD_TYPE_TAG) {
                            throw new UnsupportedTypeException(BuiltinFunctions.FIELD_ACCESS_NESTED.getName(), serializedTypeTag);
                        }
                        if (subType.getTypeTag() == ATypeTag.OBJECT) {
                            recTypeInfos[pathIndex].reset((ARecordType) subType);
                        }
                    }
                    subFieldIndex = recTypeInfos[pathIndex].getFieldIndex(fieldPointables[pathIndex].getByteArray(), fieldPointables[pathIndex].getStartOffset() + 1, fieldPointables[pathIndex].getLength() - 1);
                    if (subFieldIndex == -1) {
                        break;
                    }
                    nullBitmapSize = RecordUtil.computeNullBitmapSize((ARecordType) subType);
                    subFieldOffset = ARecordSerializerDeserializer.getFieldOffsetById(serRecord, start, subFieldIndex, nullBitmapSize, ((ARecordType) subType).isOpen());
                    if (subFieldOffset == 0) {
                        // the field is null, we checked the null bit map
                        // any path after null will return null.
                        nullSerde.serialize(ANull.NULL, out);
                        result.set(resultStorage);
                        return;
                    }
                    if (subFieldOffset < 0) {
                        // the field is missing, we checked the missing bit map
                        // any path after missing will return null.
                        missingSerde.serialize(AMissing.MISSING, out);
                        result.set(resultStorage);
                        return;
                    }
                    subType = ((ARecordType) subType).getFieldTypes()[subFieldIndex];
                    if (subType.getTypeTag() == ATypeTag.OBJECT && pathIndex + 1 < fieldPointables.length) {
                        // Move to the next Depth
                        recTypeInfos[pathIndex + 1].reset((ARecordType) subType);
                    }
                    if (subType.getTypeTag().equals(ATypeTag.UNION)) {
                        subTypeTag = ((AUnionType) subType).getActualType().getTypeTag();
                        subFieldLength = NonTaggedFormatUtil.getFieldValueLength(serRecord, subFieldOffset, subTypeTag, false);
                    } else {
                        subTypeTag = subType.getTypeTag();
                        subFieldLength = NonTaggedFormatUtil.getFieldValueLength(serRecord, subFieldOffset, subTypeTag, false);
                    }
                    if (pathIndex < fieldPointables.length - 1) {
                        //setup next iteration
                        subRecordTmpStream.reset();
                        subRecordTmpStream.write(subTypeTag.serialize());
                        subRecordTmpStream.write(serRecord, subFieldOffset, subFieldLength);
                        serRecord = subRecordTmpStream.getByteArray();
                        start = 0;
                    }
                    // type check
                    if (pathIndex < fieldPointables.length - 1 && serRecord[start] != ATypeTag.SERIALIZED_RECORD_TYPE_TAG) {
                        throw new UnsupportedTypeException(BuiltinFunctions.FIELD_ACCESS_NESTED, serRecord[start]);
                    }
                }
                // Moving through open fields after we hit the first open field.
                for (; pathIndex < fieldPointables.length; pathIndex++) {
                    openField = true;
                    subFieldOffset = ARecordSerializerDeserializer.getFieldOffsetByName(serRecord, start, len, fieldPointables[pathIndex].getByteArray(), fieldPointables[pathIndex].getStartOffset());
                    if (subFieldOffset < 0) {
                        out.writeByte(ATypeTag.SERIALIZED_MISSING_TYPE_TAG);
                        result.set(resultStorage);
                        return;
                    }
                    subTypeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(serRecord[subFieldOffset]);
                    subFieldLength = NonTaggedFormatUtil.getFieldValueLength(serRecord, subFieldOffset, subTypeTag, true) + 1;
                    if (pathIndex >= fieldPointables.length - 1) {
                        continue;
                    }
                    //setup next iteration
                    start = subFieldOffset;
                    len = subFieldLength;
                    // type check
                    if (serRecord[start] == ATypeTag.SERIALIZED_MISSING_TYPE_TAG) {
                        missingSerde.serialize(AMissing.MISSING, out);
                        result.set(resultStorage);
                        return;
                    }
                    if (serRecord[start] != ATypeTag.SERIALIZED_RECORD_TYPE_TAG) {
                        throw new UnsupportedTypeException(BuiltinFunctions.FIELD_ACCESS_NESTED.getName(), serRecord[start]);
                    }
                }
                // emit the final result.
                if (openField) {
                    result.set(serRecord, subFieldOffset, subFieldLength);
                } else {
                    out.writeByte(subTypeTag.serialize());
                    out.write(serRecord, subFieldOffset, subFieldLength);
                    result.set(resultStorage);
                }
            } catch (IOException | AsterixException e) {
                throw new HyracksDataException(e);
            }
        }
    };
}

Example 32 with AUnionType

use of org.apache.asterix.om.types.AUnionType in project asterixdb by apache.

the class TweetParser method writeField.

private boolean writeField(JsonNode fieldObj, IAType originalFieldType, DataOutput out) throws IOException {
    boolean writeResult = true;
    IAType fieldType = originalFieldType;
    if (originalFieldType instanceof AUnionType) {
        fieldType = ((AUnionType) originalFieldType).getActualType();
    }
    if (fieldType != null) {
        switch(fieldType.getTypeTag()) {
            case STRING:
                out.write(BuiltinType.ASTRING.getTypeTag().serialize());
                utf8Writer.writeUTF8(fieldObj.asText(), out);
                break;
            case BIGINT:
                aInt64.setValue(fieldObj.asLong());
                int64Serde.serialize(aInt64, out);
                break;
            case INTEGER:
                out.write(BuiltinType.AINT32.getTypeTag().serialize());
                out.writeInt(fieldObj.asInt());
                break;
            case DOUBLE:
                out.write(BuiltinType.ADOUBLE.getTypeTag().serialize());
                out.writeDouble(fieldObj.asDouble());
                break;
            case BOOLEAN:
                out.write(BuiltinType.ABOOLEAN.getTypeTag().serialize());
                out.writeBoolean(fieldObj.asBoolean());
                break;
            case OBJECT:
                writeRecord(fieldObj, out, (ARecordType) fieldType);
                break;
            case ARRAY:
                parseArrayList(fieldObj, out);
                break;
            default:
                writeResult = false;
        }
    } else {
        if (fieldObj.isNull()) {
            nullSerde.serialize(ANull.NULL, out);
        } else if (fieldObj.isInt()) {
            out.write(BuiltinType.AINT32.getTypeTag().serialize());
            out.writeInt(fieldObj.asInt());
        } else if (fieldObj.isBoolean()) {
            out.write(BuiltinType.ABOOLEAN.getTypeTag().serialize());
            out.writeBoolean(fieldObj.asBoolean());
        } else if (fieldObj.isDouble()) {
            out.write(BuiltinType.ADOUBLE.getTypeTag().serialize());
            out.writeDouble(fieldObj.asDouble());
        } else if (fieldObj.isLong()) {
            out.write(BuiltinType.AINT64.getTypeTag().serialize());
            out.writeLong(fieldObj.asLong());
        } else if (fieldObj.isTextual()) {
            out.write(BuiltinType.ASTRING.getTypeTag().serialize());
            utf8Writer.writeUTF8(fieldObj.asText(), out);
        } else if (fieldObj.isArray()) {
            if ((fieldObj).size() != 0) {
                parseArrayList(fieldObj, out);
            } else {
                writeResult = false;
            }
        } else if (fieldObj.isObject()) {
            if ((fieldObj).size() != 0) {
                writeRecord(fieldObj, out, null);
            } else {
                writeResult = false;
            }
        }
    }
    return writeResult;
}