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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
#pragma once
#include <memory>
#include <string>
#include <unordered_set>
#include <vector>
#include "gandiva/dex_visitor.h"
#include "gandiva/field_descriptor.h"
#include "gandiva/func_descriptor.h"
#include "gandiva/function_holder.h"
#include "gandiva/gandiva_aliases.h"
#include "gandiva/in_holder.h"
#include "gandiva/literal_holder.h"
#include "gandiva/native_function.h"
#include "gandiva/value_validity_pair.h"
#include "gandiva/visibility.h"
namespace gandiva {
/// \brief Decomposed expression : the validity and value are separated.
class GANDIVA_EXPORT Dex {
public:
/// Derived classes should simply invoke the Visit api of the visitor.
virtual void Accept(DexVisitor& visitor) = 0;
virtual ~Dex() = default;
};
/// Base class for other Vector related Dex.
class GANDIVA_EXPORT VectorReadBaseDex : public Dex {
public:
explicit VectorReadBaseDex(FieldDescriptorPtr field_desc) : field_desc_(field_desc) {}
const std::string& FieldName() const { return field_desc_->Name(); }
DataTypePtr FieldType() const { return field_desc_->Type(); }
FieldPtr Field() const { return field_desc_->field(); }
protected:
FieldDescriptorPtr field_desc_;
};
/// validity component of a ValueVector
class GANDIVA_EXPORT VectorReadValidityDex : public VectorReadBaseDex {
public:
explicit VectorReadValidityDex(FieldDescriptorPtr field_desc)
: VectorReadBaseDex(field_desc) {}
int ValidityIdx() const { return field_desc_->validity_idx(); }
void Accept(DexVisitor& visitor) override { visitor.Visit(*this); }
};
/// value component of a fixed-len ValueVector
class GANDIVA_EXPORT VectorReadFixedLenValueDex : public VectorReadBaseDex {
public:
explicit VectorReadFixedLenValueDex(FieldDescriptorPtr field_desc)
: VectorReadBaseDex(field_desc) {}
int DataIdx() const { return field_desc_->data_idx(); }
void Accept(DexVisitor& visitor) override { visitor.Visit(*this); }
};
/// value component of a variable-len ValueVector
class GANDIVA_EXPORT VectorReadVarLenValueDex : public VectorReadBaseDex {
public:
explicit VectorReadVarLenValueDex(FieldDescriptorPtr field_desc)
: VectorReadBaseDex(field_desc) {}
int DataIdx() const { return field_desc_->data_idx(); }
int OffsetsIdx() const { return field_desc_->offsets_idx(); }
void Accept(DexVisitor& visitor) override { visitor.Visit(*this); }
};
/// validity based on a local bitmap.
class GANDIVA_EXPORT LocalBitMapValidityDex : public Dex {
public:
explicit LocalBitMapValidityDex(int local_bitmap_idx)
: local_bitmap_idx_(local_bitmap_idx) {}
int local_bitmap_idx() const { return local_bitmap_idx_; }
void Accept(DexVisitor& visitor) override { visitor.Visit(*this); }
private:
int local_bitmap_idx_;
};
/// base function expression
class GANDIVA_EXPORT FuncDex : public Dex {
public:
FuncDex(FuncDescriptorPtr func_descriptor, const NativeFunction* native_function,
FunctionHolderPtr function_holder, int function_holder_idx,
const ValueValidityPairVector& args)
: func_descriptor_(func_descriptor),
native_function_(native_function),
function_holder_(function_holder),
function_holder_idx_(function_holder_idx),
args_(args) {}
FuncDescriptorPtr func_descriptor() const { return func_descriptor_; }
const NativeFunction* native_function() const { return native_function_; }
int get_holder_idx() const { return function_holder_idx_; }
const ValueValidityPairVector& args() const { return args_; }
private:
FuncDescriptorPtr func_descriptor_;
const NativeFunction* native_function_;
FunctionHolderPtr function_holder_;
int function_holder_idx_;
ValueValidityPairVector args_;
};
/// A function expression that only deals with non-null inputs, and generates non-null
/// outputs.
class GANDIVA_EXPORT NonNullableFuncDex : public FuncDex {
public:
NonNullableFuncDex(FuncDescriptorPtr func_descriptor,
const NativeFunction* native_function,
FunctionHolderPtr function_holder, int function_holder_idx,
const ValueValidityPairVector& args)
: FuncDex(func_descriptor, native_function, function_holder, function_holder_idx,
args) {}
void Accept(DexVisitor& visitor) override { visitor.Visit(*this); }
};
/// A function expression that deals with nullable inputs, but generates non-null
/// outputs.
class GANDIVA_EXPORT NullableNeverFuncDex : public FuncDex {
public:
NullableNeverFuncDex(FuncDescriptorPtr func_descriptor,
const NativeFunction* native_function,
FunctionHolderPtr function_holder, int function_holder_idx,
const ValueValidityPairVector& args)
: FuncDex(func_descriptor, native_function, function_holder, function_holder_idx,
args) {}
void Accept(DexVisitor& visitor) override { visitor.Visit(*this); }
};
/// A function expression that deals with nullable inputs, and
/// nullable outputs.
class GANDIVA_EXPORT NullableInternalFuncDex : public FuncDex {
public:
NullableInternalFuncDex(FuncDescriptorPtr func_descriptor,
const NativeFunction* native_function,
FunctionHolderPtr function_holder, int function_holder_idx,
const ValueValidityPairVector& args, int local_bitmap_idx)
: FuncDex(func_descriptor, native_function, function_holder, function_holder_idx,
args),
local_bitmap_idx_(local_bitmap_idx) {}
void Accept(DexVisitor& visitor) override { visitor.Visit(*this); }
/// The validity of the function result is saved in this bitmap.
int local_bitmap_idx() const { return local_bitmap_idx_; }
private:
int local_bitmap_idx_;
};
/// special validity type that always returns true.
class GANDIVA_EXPORT TrueDex : public Dex {
void Accept(DexVisitor& visitor) override { visitor.Visit(*this); }
};
/// special validity type that always returns false.
class GANDIVA_EXPORT FalseDex : public Dex {
void Accept(DexVisitor& visitor) override { visitor.Visit(*this); }
};
/// decomposed expression for a literal.
class GANDIVA_EXPORT LiteralDex : public Dex {
public:
LiteralDex(DataTypePtr type, const LiteralHolder& holder)
: type_(type), holder_(holder) {}
const DataTypePtr& type() const { return type_; }
const LiteralHolder& holder() const { return holder_; }
void Accept(DexVisitor& visitor) override { visitor.Visit(*this); }
private:
DataTypePtr type_;
LiteralHolder holder_;
};
/// decomposed if-else expression.
class GANDIVA_EXPORT IfDex : public Dex {
public:
IfDex(ValueValidityPairPtr condition_vv, ValueValidityPairPtr then_vv,
ValueValidityPairPtr else_vv, DataTypePtr result_type, int local_bitmap_idx,
bool is_terminal_else)
: condition_vv_(condition_vv),
then_vv_(then_vv),
else_vv_(else_vv),
result_type_(result_type),
local_bitmap_idx_(local_bitmap_idx),
is_terminal_else_(is_terminal_else) {}
void Accept(DexVisitor& visitor) override { visitor.Visit(*this); }
const ValueValidityPair& condition_vv() const { return *condition_vv_; }
const ValueValidityPair& then_vv() const { return *then_vv_; }
const ValueValidityPair& else_vv() const { return *else_vv_; }
/// The validity of the result is saved in this bitmap.
int local_bitmap_idx() const { return local_bitmap_idx_; }
/// is this a terminal else ? i.e no nested if-else underneath.
bool is_terminal_else() const { return is_terminal_else_; }
const DataTypePtr& result_type() const { return result_type_; }
private:
ValueValidityPairPtr condition_vv_;
ValueValidityPairPtr then_vv_;
ValueValidityPairPtr else_vv_;
DataTypePtr result_type_;
int local_bitmap_idx_;
bool is_terminal_else_;
};
// decomposed boolean expression.
class GANDIVA_EXPORT BooleanDex : public Dex {
public:
BooleanDex(const ValueValidityPairVector& args, int local_bitmap_idx)
: args_(args), local_bitmap_idx_(local_bitmap_idx) {}
const ValueValidityPairVector& args() const { return args_; }
/// The validity of the result is saved in this bitmap.
int local_bitmap_idx() const { return local_bitmap_idx_; }
private:
ValueValidityPairVector args_;
int local_bitmap_idx_;
};
/// Boolean-AND expression
class GANDIVA_EXPORT BooleanAndDex : public BooleanDex {
public:
BooleanAndDex(const ValueValidityPairVector& args, int local_bitmap_idx)
: BooleanDex(args, local_bitmap_idx) {}
void Accept(DexVisitor& visitor) override { visitor.Visit(*this); }
};
/// Boolean-OR expression
class GANDIVA_EXPORT BooleanOrDex : public BooleanDex {
public:
BooleanOrDex(const ValueValidityPairVector& args, int local_bitmap_idx)
: BooleanDex(args, local_bitmap_idx) {}
void Accept(DexVisitor& visitor) override { visitor.Visit(*this); }
};
// decomposed in expression.
template <typename Type>
class InExprDex;
template <typename Type>
class InExprDexBase : public Dex {
public:
InExprDexBase(const ValueValidityPairVector& args,
const std::unordered_set<Type>& values)
: args_(args) {
in_holder_.reset(new InHolder<Type>(values));
}
const ValueValidityPairVector& args() const { return args_; }
void Accept(DexVisitor& visitor) override { visitor.Visit(*this); }
const std::string& runtime_function() const { return runtime_function_; }
const std::shared_ptr<InHolder<Type>>& in_holder() const { return in_holder_; }
void set_holder_idx(int holder_idx) { holder_idx_ = holder_idx; }
int get_holder_idx() const { return holder_idx_; }
protected:
ValueValidityPairVector args_;
std::string runtime_function_;
std::shared_ptr<InHolder<Type>> in_holder_;
int holder_idx_;
};
template <>
class InExprDexBase<gandiva::DecimalScalar128> : public Dex {
public:
InExprDexBase(const ValueValidityPairVector& args,
const std::unordered_set<gandiva::DecimalScalar128>& values,
int32_t precision, int32_t scale)
: args_(args), precision_(precision), scale_(scale) {
in_holder_.reset(new InHolder<gandiva::DecimalScalar128>(values));
}
int32_t get_precision() const { return precision_; }
int32_t get_scale() const { return scale_; }
const ValueValidityPairVector& args() const { return args_; }
void Accept(DexVisitor& visitor) override { visitor.Visit(*this); }
const std::string& runtime_function() const { return runtime_function_; }
const std::shared_ptr<InHolder<gandiva::DecimalScalar128>>& in_holder() const {
return in_holder_;
}
void set_holder_idx(int holder_idx) { holder_idx_ = holder_idx; }
int get_holder_idx() const { return holder_idx_; }
protected:
ValueValidityPairVector args_;
std::string runtime_function_;
std::shared_ptr<InHolder<gandiva::DecimalScalar128>> in_holder_;
int32_t precision_, scale_;
int holder_idx_;
};
template <>
class InExprDex<int32_t> : public InExprDexBase<int32_t> {
public:
InExprDex(const ValueValidityPairVector& args,
const std::unordered_set<int32_t>& values)
: InExprDexBase(args, values) {
runtime_function_ = "gdv_fn_in_expr_lookup_int32";
}
};
template <>
class InExprDex<int64_t> : public InExprDexBase<int64_t> {
public:
InExprDex(const ValueValidityPairVector& args,
const std::unordered_set<int64_t>& values)
: InExprDexBase(args, values) {
runtime_function_ = "gdv_fn_in_expr_lookup_int64";
}
};
template <>
class InExprDex<float> : public InExprDexBase<float> {
public:
InExprDex(const ValueValidityPairVector& args, const std::unordered_set<float>& values)
: InExprDexBase(args, values) {
runtime_function_ = "gdv_fn_in_expr_lookup_float";
}
};
template <>
class InExprDex<double> : public InExprDexBase<double> {
public:
InExprDex(const ValueValidityPairVector& args, const std::unordered_set<double>& values)
: InExprDexBase(args, values) {
runtime_function_ = "gdv_fn_in_expr_lookup_double";
}
};
template <>
class InExprDex<gandiva::DecimalScalar128>
: public InExprDexBase<gandiva::DecimalScalar128> {
public:
InExprDex(const ValueValidityPairVector& args,
const std::unordered_set<gandiva::DecimalScalar128>& values,
int32_t precision, int32_t scale)
: InExprDexBase<gandiva::DecimalScalar128>(args, values, precision, scale) {
runtime_function_ = "gdv_fn_in_expr_lookup_decimal";
}
};
template <>
class InExprDex<std::string> : public InExprDexBase<std::string> {
public:
InExprDex(const ValueValidityPairVector& args,
const std::unordered_set<std::string>& values)
: InExprDexBase(args, values) {
runtime_function_ = "gdv_fn_in_expr_lookup_utf8";
}
};
} // namespace gandiva