classify.h

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// Copyright (C) 2014-2021 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.

#ifndef CLASSIFY_H
#define CLASSIFY_H

#include <string>
#include <iterator>
#include <list>
#include <unordered_set>


namespace isc {

namespace dhcp {

    typedef std::string ClientClass;

    class ClientClasses {
    public:

        typedef std::list<ClientClass>::const_iterator const_iterator;

        ClientClasses() : list_(), set_() {
        }

        ClientClasses(const ClientClass& class_names);

        void insert(const ClientClass& class_name) {
            list_.push_back(class_name);
            set_.insert(class_name);
        }

        void erase(const ClientClass& class_name);

        bool empty() const {
            return (list_.empty());
        }

        size_t size() const {
            return (list_.size());
        }

        const_iterator cbegin() const {
            return (list_.cbegin());
        }

        const_iterator cend() const {
            return (list_.cend());
        }

        bool contains(const ClientClass& x) const {
            return (set_.count(x) != 0);
        }

        void clear() {
            list_.clear();
            set_.clear();
        }

        std::string toText(const std::string& separator = ", ") const;

    private:
        std::list<ClientClass> list_;

        std::unordered_set<ClientClass> set_;
    };

};

};

#endif /* CLASSIFY_H */