lmdbal/exceptions.h

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// Squawk messenger.
// Copyright (C) 2019 Yury Gubich <blue@macaw.me>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// 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
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#ifndef CORE_DATABASE_EXCEPTIONS_H
#define CORE_DATABASE_EXCEPTIONS_H
#include <stdexcept>
#include <string>
#include <optional>
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#include "database.h"
class DataBase::Exception : public std::exception
{
public:
Exception();
virtual ~Exception();
virtual std::string getMessage() const = 0;
const char* what() const noexcept( true );
};
class DataBase::Directory: public DataBase::Exception {
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public:
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Directory(const std::string& path);
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std::string getMessage() const;
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private:
std::string path;
};
class DataBase::Closed : public DataBase::Exception {
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public:
Closed(const std::string& p_operation, const std::string& dbName, const std::optional<std::string>& tableName = std::nullopt);
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std::string getMessage() const;
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private:
std::string operation;
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std::string dbName;
std::optional<std::string> tableName;
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};
class DataBase::Opened : public DataBase::Exception {
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public:
Opened(const std::string& dbName, const std::string& action);
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std::string getMessage() const;
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private:
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std::string dbName;
std::string action;
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};
class DataBase::NotFound : public DataBase::Exception {
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public:
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NotFound(const std::string& key, const std::string& dbName, const std::string& tableName);
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std::string getMessage() const;
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private:
std::string key;
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std::string dbName;
std::string tableName;
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};
class DataBase::Exist : public DataBase::Exception {
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public:
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Exist(const std::string& key, const std::string& dbName, const std::string& tableName);
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std::string getMessage() const;
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private:
std::string key;
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std::string dbName;
std::string tableName;
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};
class DataBase::Unknown : public DataBase::Exception {
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public:
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Unknown(const std::string& dbName, const std::string& message, const std::optional<std::string>& tableName = std::nullopt);
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std::string getMessage() const;
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private:
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std::string dbName;
std::optional<std::string> tableName;
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std::string msg;
};
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#endif //CORE_DATABASE_EXCEPTIONS_H