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/**
* Copyright (C) 2020-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#pragma once
#include "mongo/db/api_parameters_gen.h"
#include "mongo/db/operation_context.h"
namespace mongo {
/**
* Decorates operation context with methods to retrieve apiVersion, apiStrict, and
* apiDeprecationErrors.
*/
class APIParameters {
public:
static constexpr StringData kAPIVersionFieldName = "apiVersion"_sd;
static constexpr StringData kAPIStrictFieldName = "apiStrict"_sd;
static constexpr StringData kAPIDeprecationErrorsFieldName = "apiDeprecationErrors"_sd;
static const OperationContext::Decoration<APIParameters> get;
static APIParameters fromClient(const APIParametersFromClient& apiParamsFromClient);
static APIParameters fromBSON(const BSONObj& cmdObj);
// For use with unordered_map.
struct Hash {
std::size_t operator()(const APIParameters& params) const;
};
void appendInfo(BSONObjBuilder* builder) const;
const boost::optional<std::string>& getAPIVersion() const {
return _apiVersion;
}
void setAPIVersion(StringData apiVersion) {
_apiVersion = apiVersion.toString();
}
const boost::optional<bool>& getAPIStrict() const {
return _apiStrict;
}
void setAPIStrict(bool apiStrict) {
_apiStrict = apiStrict;
}
const boost::optional<bool>& getAPIDeprecationErrors() const {
return _apiDeprecationErrors;
}
void setAPIDeprecationErrors(bool apiDeprecationErrors) {
_apiDeprecationErrors = apiDeprecationErrors;
}
bool getParamsPassed() const {
return _apiVersion || _apiStrict || _apiDeprecationErrors;
}
private:
boost::optional<std::string> _apiVersion;
boost::optional<bool> _apiStrict;
boost::optional<bool> _apiDeprecationErrors;
};
inline bool operator==(const APIParameters& lhs, const APIParameters& rhs) {
return lhs.getAPIVersion() == rhs.getAPIVersion() && lhs.getAPIStrict() == rhs.getAPIStrict() &&
lhs.getAPIDeprecationErrors() == rhs.getAPIDeprecationErrors();
}
inline bool operator!=(const APIParameters& lhs, const APIParameters& rhs) {
return !(lhs == rhs);
}
/**
* Temporarily remove the user's API parameters from an OperationContext.
*/
class IgnoreAPIParametersBlock {
public:
IgnoreAPIParametersBlock() = delete;
IgnoreAPIParametersBlock(const IgnoreAPIParametersBlock&) = delete;
IgnoreAPIParametersBlock& operator=(const IgnoreAPIParametersBlock&) = delete;
explicit IgnoreAPIParametersBlock(OperationContext* opCtx) : _opCtx(opCtx) {
_apiParams = APIParameters::get(_opCtx);
APIParameters::get(_opCtx) = APIParameters();
}
void release() {
if (_released) {
return;
}
APIParameters::get(_opCtx) = _apiParams;
_released = true;
}
~IgnoreAPIParametersBlock() {
release();
}
private:
OperationContext* _opCtx;
APIParameters _apiParams;
bool _released = false;
};
} // namespace mongo
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