121 lines
3.4 KiB
C++
121 lines
3.4 KiB
C++
// Squawk messenger.
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// Copyright (C) 2019 Yury Gubich <blue@macaw.me>
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include "exceptions.h"
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DataBase::Exception::Exception():
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std::exception()
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{}
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DataBase::Exception::~Exception() {}
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const char* DataBase::Exception::what() const noexcept( true )
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{
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std::string* msg = new std::string(getMessage());
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return msg->c_str();
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}
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DataBase::Directory::Directory(const std::string& p_path):
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Exception(),
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path(p_path) {}
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std::string DataBase::Directory::getMessage() const {
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return "Can't create directory for database at " + path;}
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DataBase::Closed::Closed(
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const std::string& p_operation,
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const std::string& p_dbName,
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const std::optional<std::string>& p_tableName
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):
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Exception(),
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operation(p_operation),
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dbName(p_dbName),
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tableName(p_tableName) {}
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std::string DataBase::Closed::getMessage() const {
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std::string msg = "An attempt to perform operation " + operation
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+ " on closed database " + dbName;
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if (tableName.has_value()) {
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msg += + " on table " + tableName.value();
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}
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return msg;
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}
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DataBase::Opened::Opened(const std::string& p_dbName, const std::string& p_action):
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Exception(),
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dbName(p_dbName),
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action(p_action) {}
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std::string DataBase::Opened::getMessage() const {
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return "An attempt to " + action
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+ " (the database " + dbName
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+ ") but it's can't be done because the DataBase is already opened";
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}
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DataBase::NotFound::NotFound(
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const std::string& p_key,
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const std::string& p_dbName,
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const std::string& p_tableName
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):
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Exception(),
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key(p_key),
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dbName(p_dbName),
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tableName(p_tableName) {}
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std::string DataBase::NotFound::getMessage() const {
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return "Element for id " + key + " wasn't found "
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+ " in database " + dbName
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+ " in table " + tableName;}
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DataBase::Exist::Exist(
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const std::string& p_key,
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const std::string& p_dbName,
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const std::string& p_tableName
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):
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Exception(),
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key(p_key),
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dbName(p_dbName),
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tableName(p_tableName) {}
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std::string DataBase::Exist::getMessage() const {
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return "An attempt to insert element with key " + key
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+ " to database " + dbName
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+ " to table " + tableName
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+ " but it already has an element with given id";
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}
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DataBase::Unknown::Unknown(
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const std::string& p_dbName,
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const std::string& message,
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const std::optional<std::string>& p_tableName
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):
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Exception(),
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dbName(p_dbName),
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tableName(p_tableName),
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msg(message) {}
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std::string DataBase::Unknown::getMessage() const
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{
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std::string result = "Unknown error in database " + dbName;
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if (tableName.has_value()) {
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result += " in table " + tableName.value();
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}
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result += ": " + msg;
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return result;
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}
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