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Example 1 with PROVIDED_BLOCKBUILDER

use of com.facebook.presto.operator.scalar.ScalarFunctionImplementationChoice.ReturnPlaceConvention.PROVIDED_BLOCKBUILDER in project presto by prestodb.

the class ArrayJoin method specializeArrayJoin.

private static BuiltInScalarFunctionImplementation specializeArrayJoin(Map<String, Type> types, FunctionAndTypeManager functionAndTypeManager, List<Boolean> nullableArguments, MethodHandle methodHandleStack, MethodHandle methodHandleProvidedBlock) {
    Type type = types.get("T");
    List<ArgumentProperty> argumentProperties = nullableArguments.stream().map(nullable -> nullable ? valueTypeArgumentProperty(USE_BOXED_TYPE) : valueTypeArgumentProperty(RETURN_NULL_ON_NULL)).collect(toImmutableList());
    if (type instanceof UnknownType) {
        return new BuiltInScalarFunctionImplementation(false, argumentProperties, methodHandleStack.bindTo(null), Optional.empty());
    } else {
        try {
            MethodHandle cast = functionAndTypeManager.getJavaScalarFunctionImplementation(functionAndTypeManager.lookupCast(CAST, type.getTypeSignature(), VARCHAR_TYPE_SIGNATURE)).getMethodHandle();
            MethodHandle getter;
            Class<?> elementType = type.getJavaType();
            if (elementType == boolean.class) {
                getter = GET_BOOLEAN;
            } else if (elementType == double.class) {
                getter = GET_DOUBLE;
            } else if (elementType == long.class) {
                getter = GET_LONG;
            } else if (elementType == Slice.class) {
                getter = GET_SLICE;
            } else {
                throw new UnsupportedOperationException("Unsupported type: " + elementType.getName());
            }
            // if the cast doesn't take a SqlFunctionProperties, create an adapter that drops the provided session
            if (cast.type().parameterArray()[0] != SqlFunctionProperties.class) {
                cast = MethodHandles.dropArguments(cast, 0, SqlFunctionProperties.class);
            }
            // Adapt a target cast that takes (SqlFunctionProperties, ?) to one that takes (Block, int, SqlFunctionProperties), which will be invoked by the implementation
            // The first two arguments (Block, int) are filtered through the element type's getXXX method to produce the underlying value that needs to be passed to
            // the cast.
            cast = MethodHandles.permuteArguments(cast, MethodType.methodType(Slice.class, cast.type().parameterArray()[1], cast.type().parameterArray()[0]), 1, 0);
            cast = MethodHandles.dropArguments(cast, 1, int.class);
            cast = MethodHandles.dropArguments(cast, 1, Block.class);
            cast = MethodHandles.foldArguments(cast, getter.bindTo(type));
            MethodHandle targetStack = MethodHandles.insertArguments(methodHandleStack, 0, cast);
            MethodHandle targetProvidedBlock = MethodHandles.insertArguments(methodHandleProvidedBlock, 0, cast);
            return new BuiltInScalarFunctionImplementation(ImmutableList.of(new ScalarFunctionImplementationChoice(false, argumentProperties, STACK, targetStack, Optional.empty()), new ScalarFunctionImplementationChoice(false, argumentProperties, PROVIDED_BLOCKBUILDER, targetProvidedBlock, Optional.empty())));
        } catch (PrestoException e) {
            throw new PrestoException(INVALID_FUNCTION_ARGUMENT, format("Input type %s not supported", type), e);
        }
    }
}
Also used : FunctionAndTypeManager(com.facebook.presto.metadata.FunctionAndTypeManager) STACK(com.facebook.presto.operator.scalar.ScalarFunctionImplementationChoice.ReturnPlaceConvention.STACK) MethodHandle(java.lang.invoke.MethodHandle) StandardTypes(com.facebook.presto.common.type.StandardTypes) FunctionKind(com.facebook.presto.spi.function.FunctionKind) Slice(io.airlift.slice.Slice) VARCHAR(com.facebook.presto.common.type.VarcharType.VARCHAR) GENERIC_INTERNAL_ERROR(com.facebook.presto.spi.StandardErrorCode.GENERIC_INTERNAL_ERROR) PrestoException(com.facebook.presto.spi.PrestoException) TypeSignature(com.facebook.presto.common.type.TypeSignature) ArgumentProperty(com.facebook.presto.operator.scalar.ScalarFunctionImplementationChoice.ArgumentProperty) DEFAULT_NAMESPACE(com.facebook.presto.metadata.BuiltInTypeAndFunctionNamespaceManager.DEFAULT_NAMESPACE) Signature.typeVariable(com.facebook.presto.spi.function.Signature.typeVariable) ImmutableList(com.google.common.collect.ImmutableList) Reflection.methodHandle(com.facebook.presto.util.Reflection.methodHandle) Map(java.util.Map) QualifiedObjectName(com.facebook.presto.common.QualifiedObjectName) INVALID_FUNCTION_ARGUMENT(com.facebook.presto.spi.StandardErrorCode.INVALID_FUNCTION_ARGUMENT) UnknownType(com.facebook.presto.common.type.UnknownType) RETURN_NULL_ON_NULL(com.facebook.presto.operator.scalar.ScalarFunctionImplementationChoice.NullConvention.RETURN_NULL_ON_NULL) UsedByGeneratedCode(com.facebook.presto.annotation.UsedByGeneratedCode) Type(com.facebook.presto.common.type.Type) BlockBuilder(com.facebook.presto.common.block.BlockBuilder) BoundVariables(com.facebook.presto.metadata.BoundVariables) SqlScalarFunction(com.facebook.presto.metadata.SqlScalarFunction) PROVIDED_BLOCKBUILDER(com.facebook.presto.operator.scalar.ScalarFunctionImplementationChoice.ReturnPlaceConvention.PROVIDED_BLOCKBUILDER) SqlFunctionProperties(com.facebook.presto.common.function.SqlFunctionProperties) MethodHandles(java.lang.invoke.MethodHandles) ImmutableList.toImmutableList(com.google.common.collect.ImmutableList.toImmutableList) USE_BOXED_TYPE(com.facebook.presto.operator.scalar.ScalarFunctionImplementationChoice.NullConvention.USE_BOXED_TYPE) String.format(java.lang.String.format) SqlFunctionVisibility(com.facebook.presto.spi.function.SqlFunctionVisibility) ArgumentProperty.valueTypeArgumentProperty(com.facebook.presto.operator.scalar.ScalarFunctionImplementationChoice.ArgumentProperty.valueTypeArgumentProperty) PUBLIC(com.facebook.presto.spi.function.SqlFunctionVisibility.PUBLIC) List(java.util.List) MethodType(java.lang.invoke.MethodType) TypeSignature.parseTypeSignature(com.facebook.presto.common.type.TypeSignature.parseTypeSignature) Signature(com.facebook.presto.spi.function.Signature) Optional(java.util.Optional) Block(com.facebook.presto.common.block.Block) CAST(com.facebook.presto.metadata.CastType.CAST) ArgumentProperty(com.facebook.presto.operator.scalar.ScalarFunctionImplementationChoice.ArgumentProperty) ArgumentProperty.valueTypeArgumentProperty(com.facebook.presto.operator.scalar.ScalarFunctionImplementationChoice.ArgumentProperty.valueTypeArgumentProperty) SqlFunctionProperties(com.facebook.presto.common.function.SqlFunctionProperties) PrestoException(com.facebook.presto.spi.PrestoException) UnknownType(com.facebook.presto.common.type.UnknownType) UnknownType(com.facebook.presto.common.type.UnknownType) Type(com.facebook.presto.common.type.Type) MethodType(java.lang.invoke.MethodType) Slice(io.airlift.slice.Slice) Block(com.facebook.presto.common.block.Block) MethodHandle(java.lang.invoke.MethodHandle)

Aggregations

UsedByGeneratedCode (com.facebook.presto.annotation.UsedByGeneratedCode)1 QualifiedObjectName (com.facebook.presto.common.QualifiedObjectName)1 Block (com.facebook.presto.common.block.Block)1 BlockBuilder (com.facebook.presto.common.block.BlockBuilder)1 SqlFunctionProperties (com.facebook.presto.common.function.SqlFunctionProperties)1 StandardTypes (com.facebook.presto.common.type.StandardTypes)1 Type (com.facebook.presto.common.type.Type)1 TypeSignature (com.facebook.presto.common.type.TypeSignature)1 TypeSignature.parseTypeSignature (com.facebook.presto.common.type.TypeSignature.parseTypeSignature)1 UnknownType (com.facebook.presto.common.type.UnknownType)1 VARCHAR (com.facebook.presto.common.type.VarcharType.VARCHAR)1 BoundVariables (com.facebook.presto.metadata.BoundVariables)1 DEFAULT_NAMESPACE (com.facebook.presto.metadata.BuiltInTypeAndFunctionNamespaceManager.DEFAULT_NAMESPACE)1 CAST (com.facebook.presto.metadata.CastType.CAST)1 FunctionAndTypeManager (com.facebook.presto.metadata.FunctionAndTypeManager)1 SqlScalarFunction (com.facebook.presto.metadata.SqlScalarFunction)1 ArgumentProperty (com.facebook.presto.operator.scalar.ScalarFunctionImplementationChoice.ArgumentProperty)1 ArgumentProperty.valueTypeArgumentProperty (com.facebook.presto.operator.scalar.ScalarFunctionImplementationChoice.ArgumentProperty.valueTypeArgumentProperty)1 RETURN_NULL_ON_NULL (com.facebook.presto.operator.scalar.ScalarFunctionImplementationChoice.NullConvention.RETURN_NULL_ON_NULL)1 USE_BOXED_TYPE (com.facebook.presto.operator.scalar.ScalarFunctionImplementationChoice.NullConvention.USE_BOXED_TYPE)1