beedb/include/io/command/commander.h

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2022-04-04 20:25:01 +02:00
/*------------------------------------------------------------------------------*
* Architecture & Implementation of DBMS *
*------------------------------------------------------------------------------*
* Copyright 2022 Databases and Information Systems Group TU Dortmund *
* Visit us at *
* http://dbis.cs.tu-dortmund.de/cms/en/home/ *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR *
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, *
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR *
* OTHER DEALINGS IN THE SOFTWARE. *
* *
* Authors: *
* Maximilian Berens <maximilian.berens@tu-dortmund.de> *
* Roland Kühn <roland.kuehn@cs.tu-dortmund.de> *
* Jan Mühlig <jan.muehlig@tu-dortmund.de> *
*------------------------------------------------------------------------------*
*/
#pragma once
#include "custom_command_interface.h"
#include <memory>
#include <string>
#include <unordered_map>
#include <vector>
namespace beedb::io::command
{
class Commander
{
public:
explicit Commander(Database &database);
~Commander() = default;
[[nodiscard]] static bool is_command(const std::string &input)
{
return input.at(0u) == ':';
}
void register_command(std::string &&name, std::unique_ptr<CustomCommandInterface> &&command)
{
_registered_commands.insert(std::make_pair(std::move(name), std::move(command)));
}
std::optional<beedb::io::ExecutionResult> execute(const std::string &user_input, Executor &executor,
ExecutionCallback &execution_callback);
private:
std::unordered_map<std::string, std::unique_ptr<CustomCommandInterface>> _registered_commands;
Database &_database;
};
} // namespace beedb::io::command