libcruft-util/json/constraint/properties.hpp

/*
 * 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.
 *
 * Copyright 2018 Danny Robson <danny@nerdcruft.net>
 */

#pragma once

#include "base.hpp"
#include "combine.hpp"

#include <map>
#include <string>
#include <memory>
#include <regex>


///////////////////////////////////////////////////////////////////////////////
namespace util::json::schema::constraint {
    class properties : public base {
    public:
        properties (::json::tree::node const&);
        virtual ~properties () = default;

        output_iterator validate (output_iterator, ::json::tree::node &target) const noexcept override;
        std::ostream& describe (std::ostream&) const override;

        bool has (std::string const &key) const noexcept;

    private:
        std::map<std::string,combine> m_properties;
    };


    class pattern_properties : public base {
    public:
        pattern_properties (::json::tree::node const&);

        output_iterator validate (output_iterator, ::json::tree::node &target) const noexcept override;
        std::ostream& describe (std::ostream&) const override;

        bool has (std::string const &key) const noexcept;

    private:
        struct pattern_t {
            std::string pattern;
            std::regex matcher;
            combine validator;
        };

        std::vector<pattern_t> m_patterns;
    };


    class additional_properties : public base {
    public:
        additional_properties (::json::tree::node const&, properties*, pattern_properties*);
        additional_properties (::json::tree::node const&);

        virtual ~additional_properties () = default;

        void use (properties*);
        void use (pattern_properties*);

        output_iterator validate (output_iterator, ::json::tree::node &target) const noexcept override;
        std::ostream& describe (std::ostream&) const override;

    private:
        combine m_fallback;
        properties *m_properties = nullptr;
        pattern_properties *m_patterns = nullptr;
    };
}