lmdbal/exceptions.cpp

106 lines
3.1 KiB
C++

// 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/>.
#include "exceptions.h"
DataBase::Directory::Directory(const std::string& p_path):
Exception(),
path(p_path) {}
std::string DataBase::Directory::getMessage() const {
return "Can't create directory for database at " + path;}
DataBase::Closed::Closed(
const std::string& p_operation,
const std::string& p_dbName,
const std::string& p_tableName
):
Exception(),
operation(p_operation),
dbName(p_dbName),
tableName(p_tableName) {}
std::string DataBase::Closed::getMessage() const {
return "An attempt to perform operation " + operation
+ " on closed database " + dbName
+ " on table " + tableName;
}
DataBase::Opened::Opened(const std::string& p_dbName, const std::string& p_tableName):
Exception(),
dbName(p_dbName),
tableName(p_tableName) {}
std::string DataBase::Opened::getMessage() const {
return "An attempt to add table " + tableName
+ " to the database " + dbName
+ " but it's can't be done because the DataBase is already opened."
+ " Please add all tables before opening DataBase.";
}
DataBase::NotFound::NotFound(
const std::string& p_key,
const std::string& p_dbName,
const std::string& p_tableName
):
Exception(),
key(p_key),
dbName(p_dbName),
tableName(p_tableName) {}
std::string DataBase::NotFound::getMessage() const {
return "Element for id " + key + " wasn't found "
+ " in database " + dbName
+ " in table " + tableName;}
DataBase::Exist::Exist(
const std::string& p_key,
const std::string& p_dbName,
const std::string& p_tableName
):
Exception(),
key(p_key),
dbName(p_dbName),
tableName(p_tableName) {}
std::string DataBase::Exist::getMessage() const {
return "An attempt to insert element with key " + key
+ " to database " + dbName
+ " to table " + tableName
+ " but it already has an element with given id";
}
DataBase::Unknown::Unknown(
const std::string& p_dbName,
const std::string& message,
const std::optional<std::string>& p_tableName
):
Exception(),
dbName(p_dbName),
tableName(p_tableName),
msg(message) {}
std::string DataBase::Unknown::getMessage() const
{
std::string result = "Unknown error in database " + dbName;
if (tableName.has_value()) {
result += " in table " + tableName.value();
}
result += ": " + msg;
return result;
}