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/************************************************************************
*
* Copyright (C) 2025 IRCAD France
*
* This file is part of Sight.
*
* Sight is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Sight 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Sight. If not, see <https://www.gnu.org/licenses/>.
*
***********************************************************************/
#pragma once
#include <data/string.hpp>
#include <data/string_serializable.hpp>
#include <service/filter.hpp>
namespace sight::module::data
{
/**
* @brief This service concatenate string_serializable data.
*
* The service concatenates all the input fragments into the target object. The concatenation follows the order of the
* fragments input group. If a format properties is provided, it is used to create the target string.
* (follows the std::format syntax).
*
* @section XML XML Configuration
* @code{.xml}
<service uid="..." type="sight::module::data::concat" >
<properties format="Hello {} !" />
<inout key="target" uid="..." />
<inout group="fragments">
<key name="object1" uid="..." />
<key name="object2" uid="..." />
..
</inout>
</service>
@endcode
*
* @subsection Input Input
* - \b fragments [sight::data::string_serializable]: define the string objects to concat.
*
* @subsection In-Out In-Out
* - \b target [sight::data::string_serializable]: define the target object.
*/
class concat final : public service::filter
{
public:
/// Generates default methods as New, dynamicCast, ...
SIGHT_DECLARE_SERVICE(concat, service::filter);
/// Creates the service.
concat();
/// Destroys the service.
~concat() final = default;
protected:
/// Calls update when the fragments change
service::connections_t auto_connections() const final;
/// Does nothing
void configuring(const config_t& _config) final;
/// Does nothing
void starting() final;
/// Concatenates
void updating() final;
/// Does nothing
void stopping() final;
private:
/// Inputs: fragments to concat
sight::data::ptr_vector<sight::data::string_serializable, sight::data::access::in> m_fragments {this, "fragments"};
/// In-Out: target to store the result
sight::data::ptr<sight::data::string_serializable, sight::data::access::inout> m_target {this, "target"};
// Properties
sight::data::property<sight::data::string> m_format {this, "format", std::string()};
};
} // namespace sight::module::data.
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