mirror of https://gitee.com/bigwinds/arangodb
126 lines
3.6 KiB
C++
126 lines
3.6 KiB
C++
////////////////////////////////////////////////////////////////////////////////
|
|
/// DISCLAIMER
|
|
///
|
|
/// Copyright 2017 ArangoDB GmbH, Cologne, Germany
|
|
///
|
|
/// Licensed 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.
|
|
///
|
|
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
|
|
///
|
|
/// @author Dr. Frank Celler
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef ARANGODB_BASICS_RESULT_H
|
|
#define ARANGODB_BASICS_RESULT_H 1
|
|
|
|
#include "Basics/Common.h"
|
|
|
|
namespace arangodb {
|
|
class Result {
|
|
public:
|
|
Result() : _errorNumber(TRI_ERROR_NO_ERROR) {}
|
|
|
|
Result(int errorNumber)
|
|
: _errorNumber(errorNumber){
|
|
if (errorNumber != TRI_ERROR_NO_ERROR) {
|
|
_errorMessage = TRI_errno_string(errorNumber);
|
|
}
|
|
}
|
|
|
|
Result(int errorNumber, std::string const& errorMessage)
|
|
: _errorNumber(errorNumber), _errorMessage(errorMessage) {}
|
|
|
|
Result(int errorNumber, std::string&& errorMessage)
|
|
: _errorNumber(errorNumber), _errorMessage(std::move(errorMessage)) {}
|
|
|
|
// copy
|
|
Result(Result const& other)
|
|
: _errorNumber(other._errorNumber),
|
|
_errorMessage(other._errorMessage) {}
|
|
|
|
Result& operator=(Result const& other) {
|
|
_errorNumber = other._errorNumber;
|
|
_errorMessage = other._errorMessage;
|
|
return *this;
|
|
}
|
|
|
|
// move
|
|
Result(Result&& other) noexcept
|
|
: _errorNumber(other._errorNumber),
|
|
_errorMessage(std::move(other._errorMessage)) {}
|
|
|
|
Result& operator=(Result&& other) noexcept {
|
|
_errorNumber = other._errorNumber;
|
|
_errorMessage = std::move(other._errorMessage);
|
|
return *this;
|
|
}
|
|
|
|
virtual ~Result() {}
|
|
|
|
public:
|
|
bool ok() const { return _errorNumber == TRI_ERROR_NO_ERROR; }
|
|
bool fail() const { return !ok(); }
|
|
|
|
int errorNumber() const { return _errorNumber; }
|
|
bool is(int errorNumber) const { return _errorNumber == errorNumber; }
|
|
bool isNot(int errorNumber) const { return !is(errorNumber); }
|
|
|
|
Result& reset(int errorNumber = TRI_ERROR_NO_ERROR) {
|
|
_errorNumber = errorNumber;
|
|
|
|
if (errorNumber != TRI_ERROR_NO_ERROR) {
|
|
_errorMessage = TRI_errno_string(errorNumber);
|
|
} else {
|
|
_errorMessage.clear();
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
Result& reset(int errorNumber, std::string const& errorMessage) {
|
|
_errorNumber = errorNumber;
|
|
_errorMessage = errorMessage;
|
|
return *this;
|
|
}
|
|
|
|
Result& reset(int errorNumber, std::string&& errorMessage) noexcept {
|
|
_errorNumber = errorNumber;
|
|
_errorMessage = std::move(errorMessage);
|
|
return *this;
|
|
}
|
|
|
|
Result& reset(Result const& other) {
|
|
_errorNumber = other._errorNumber;
|
|
_errorMessage = other._errorMessage;
|
|
return *this;
|
|
}
|
|
|
|
Result& reset(Result&& other) noexcept {
|
|
_errorNumber = other._errorNumber;
|
|
_errorMessage = std::move(other._errorMessage);
|
|
return *this;
|
|
}
|
|
|
|
// the default implementation is const, but sub-classes might
|
|
// really do more work to compute.
|
|
|
|
virtual std::string errorMessage() const& { return _errorMessage; }
|
|
virtual std::string errorMessage() && { return std::move(_errorMessage); }
|
|
|
|
protected:
|
|
int _errorNumber;
|
|
std::string _errorMessage;
|
|
};
|
|
}
|
|
|
|
#endif
|