Examples with FieldAccessNestedEvalFactory org.apache.asterix.runtime.evaluators.functions.records.FieldAccessNestedEvalFactory used on opensource projects

Example 1 with FieldAccessNestedEvalFactory

use of org.apache.asterix.runtime.evaluators.functions.records.FieldAccessNestedEvalFactory in project asterixdb by apache.

the class NonTaggedDataFormat method partitioningEvaluatorFactory.

@SuppressWarnings("unchecked")
@Override
public Triple<IScalarEvaluatorFactory, ScalarFunctionCallExpression, IAType> partitioningEvaluatorFactory(ARecordType recType, List<String> fldName) throws AlgebricksException {
    String[] names = recType.getFieldNames();
    int n = names.length;
    if (fldName.size() > 1) {
        for (int i = 0; i < n; i++) {
            if (names[i].equals(fldName.get(0))) {
                IScalarEvaluatorFactory recordEvalFactory = new ColumnAccessEvalFactory(GlobalConfig.DEFAULT_INPUT_DATA_COLUMN);
                ArrayBackedValueStorage abvs = new ArrayBackedValueStorage();
                DataOutput dos = abvs.getDataOutput();
                try {
                    AInt32 ai = new AInt32(i);
                    SerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(ai.getType()).serialize(ai, dos);
                } catch (HyracksDataException e) {
                    throw new AlgebricksException(e);
                }
                IScalarEvaluatorFactory fldIndexEvalFactory = new ConstantEvalFactory(Arrays.copyOf(abvs.getByteArray(), abvs.getLength()));
                IScalarEvaluatorFactory evalFactory = new FieldAccessByIndexEvalFactory(recordEvalFactory, fldIndexEvalFactory, recType);
                IFunctionInfo finfoAccess = BuiltinFunctions.getAsterixFunctionInfo(BuiltinFunctions.FIELD_ACCESS_BY_INDEX);
                ScalarFunctionCallExpression partitionFun = new ScalarFunctionCallExpression(finfoAccess, new MutableObject<ILogicalExpression>(new VariableReferenceExpression(METADATA_DUMMY_VAR)), new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(new AInt32(i)))));
                return new Triple<IScalarEvaluatorFactory, ScalarFunctionCallExpression, IAType>(evalFactory, partitionFun, recType.getFieldTypes()[i]);
            }
        }
    } else {
        IScalarEvaluatorFactory recordEvalFactory = new ColumnAccessEvalFactory(GlobalConfig.DEFAULT_INPUT_DATA_COLUMN);
        ArrayBackedValueStorage abvs = new ArrayBackedValueStorage();
        DataOutput dos = abvs.getDataOutput();
        AOrderedList as = new AOrderedList(fldName);
        try {
            SerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(as.getType()).serialize(as, dos);
        } catch (HyracksDataException e) {
            throw new AlgebricksException(e);
        }
        IScalarEvaluatorFactory evalFactory = new FieldAccessNestedEvalFactory(recordEvalFactory, recType, fldName);
        IFunctionInfo finfoAccess = BuiltinFunctions.getAsterixFunctionInfo(BuiltinFunctions.FIELD_ACCESS_NESTED);
        ScalarFunctionCallExpression partitionFun = new ScalarFunctionCallExpression(finfoAccess, new MutableObject<ILogicalExpression>(new VariableReferenceExpression(METADATA_DUMMY_VAR)), new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(as))));
        return new Triple<IScalarEvaluatorFactory, ScalarFunctionCallExpression, IAType>(evalFactory, partitionFun, recType.getSubFieldType(fldName));
    }
    throw new AlgebricksException("Could not find field " + fldName + " in the schema.");
}

Example 2 with FieldAccessNestedEvalFactory

use of org.apache.asterix.runtime.evaluators.functions.records.FieldAccessNestedEvalFactory in project asterixdb by apache.

the class NonTaggedDataFormat method getFieldAccessEvaluatorFactory.

@SuppressWarnings("unchecked")
@Override
public IScalarEvaluatorFactory getFieldAccessEvaluatorFactory(ARecordType recType, List<String> fldName, int recordColumn) throws AlgebricksException {
    String[] names = recType.getFieldNames();
    int n = names.length;
    boolean fieldFound = false;
    IScalarEvaluatorFactory recordEvalFactory = new ColumnAccessEvalFactory(recordColumn);
    ArrayBackedValueStorage abvs = new ArrayBackedValueStorage();
    DataOutput dos = abvs.getDataOutput();
    IScalarEvaluatorFactory evalFactory = null;
    if (fldName.size() == 1) {
        for (int i = 0; i < n; i++) {
            if (names[i].equals(fldName.get(0))) {
                fieldFound = true;
                try {
                    AInt32 ai = new AInt32(i);
                    SerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(ai.getType()).serialize(ai, dos);
                } catch (HyracksDataException e) {
                    throw new AlgebricksException(e);
                }
                IScalarEvaluatorFactory fldIndexEvalFactory = new ConstantEvalFactory(Arrays.copyOf(abvs.getByteArray(), abvs.getLength()));
                evalFactory = new FieldAccessByIndexEvalFactory(recordEvalFactory, fldIndexEvalFactory, recType);
                return evalFactory;
            }
        }
    }
    if (fldName.size() > 1 || (!fieldFound && recType.isOpen())) {
        if (fldName.size() == 1) {
            AString as = new AString(fldName.get(0));
            try {
                SerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(as.getType()).serialize(as, dos);
            } catch (HyracksDataException e) {
                throw new AlgebricksException(e);
            }
        } else {
            AOrderedList as = new AOrderedList(fldName);
            try {
                SerializerDeserializerProvider.INSTANCE.getSerializerDeserializer(as.getType()).serialize(as, dos);
            } catch (HyracksDataException e) {
                throw new AlgebricksException(e);
            }
        }
        IScalarEvaluatorFactory[] factories = new IScalarEvaluatorFactory[2];
        factories[0] = recordEvalFactory;
        if (fldName.size() > 1) {
            evalFactory = new FieldAccessNestedEvalFactory(recordEvalFactory, recType, fldName);
        } else {
            evalFactory = FieldAccessByNameDescriptor.FACTORY.createFunctionDescriptor().createEvaluatorFactory(factories);
        }
        return evalFactory;
    } else {
        throw new AlgebricksException("Could not find field " + fldName + " in the schema.");
    }
}