Program Listing for File accessor.hpp
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// Copyright 2020 PAL Robotics S.L.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef TRANSMISSION_INTERFACE__ACCESSOR_HPP_
#define TRANSMISSION_INTERFACE__ACCESSOR_HPP_
#include <algorithm>
#include <set>
#include <string>
#include <vector>
namespace transmission_interface
{
template <typename T>
std::string to_string(const std::vector<T> & list)
{
std::stringstream ss;
ss << "[";
for (const auto & elem : list)
{
ss << elem << ", ";
}
if (!list.empty())
{
ss.seekp(-2, std::ios_base::end); // remove last ", "
}
ss << "]";
return ss.str();
}
template <class T>
std::vector<std::string> get_names(const std::vector<T> & handles)
{
std::set<std::string> names;
std::transform(
handles.cbegin(), handles.cend(), std::inserter(names, names.end()),
[](const auto & handle) { return handle.get_prefix_name(); });
return std::vector<std::string>(names.begin(), names.end());
}
template <typename T>
std::vector<T> get_ordered_handles(
const std::vector<T> & unordered_handles, const std::vector<std::string> & names,
const std::string & interface_type)
{
std::vector<T> result;
for (const auto & name : names)
{
std::copy_if(
unordered_handles.cbegin(), unordered_handles.cend(), std::back_inserter(result),
[&](const auto & handle)
{
return (handle.get_prefix_name() == name) &&
(handle.get_interface_name() == interface_type) && handle;
});
}
return result;
}
} // namespace transmission_interface
#endif // TRANSMISSION_INTERFACE__ACCESSOR_HPP_