| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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. |
| */ |
| #pragma once |
| |
| #include <set> |
| |
| namespace org::apache::nifi::minifi::utils::MapUtils { |
| |
| /** |
| * Return a set of keys from a map |
| */ |
| template<template <typename...> class Map, typename T, typename U> |
| std::set<T> getKeys(const Map<T, U>& m) { |
| std::set<T> keys; |
| for (const auto& pair : m) { |
| keys.insert(pair.first); |
| } |
| return keys; |
| } |
| |
| } // namespace org::apache::nifi::minifi::utils::MapUtils |
