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389104d200
issue: #41435 this is to prevent AI from thinking of our exception throwing as a dangerous PANIC operation that terminates the program. Signed-off-by: Buqian Zheng <zhengbuqian@gmail.com>
80 lines
2.1 KiB
C++
80 lines
2.1 KiB
C++
// Copyright (C) 2019-2020 Zilliz. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software distributed under the License
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// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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// or implied. See the License for the specific language governing permissions and limitations under the License
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#pragma once
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#include <functional>
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#include <optional>
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#include <string>
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#include "common/EasyAssert.h"
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#include "common/Json.h"
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#include "common/JsonCastType.h"
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namespace milvus {
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class JsonCastFunction {
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public:
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enum class Type {
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kUnknown,
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kString2Double,
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};
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template <typename T, typename F>
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std::optional<T>
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cast(const F& t) const {
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ThrowInfo(Unsupported, "Not implemented");
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}
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template <typename T>
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bool
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match() const {
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switch (cast_function_type_) {
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case Type::kString2Double:
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return std::is_same_v<T, double>;
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}
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return false;
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}
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static JsonCastFunction
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FromString(const std::string& str);
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template <typename T>
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static std::optional<T>
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CastJsonValue(const JsonCastFunction& cast_function,
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const Json& json,
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const std::string& pointer);
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private:
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JsonCastFunction(Type type) : cast_function_type_(type) {
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}
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Type cast_function_type_;
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static const std::unordered_map<std::string, JsonCastFunction>
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predefined_cast_functions_;
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};
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template <>
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std::optional<double>
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JsonCastFunction::cast<double, std::string>(const std::string& t) const;
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template <>
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std::optional<double>
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JsonCastFunction::cast<double, int64_t>(const int64_t& t) const;
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template <>
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std::optional<double>
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JsonCastFunction::cast<double, double>(const double& t) const;
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template <>
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std::optional<double>
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JsonCastFunction::cast<double, bool>(const bool& t) const;
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} // namespace milvus
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