rrparamregistry.h

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// Copyright (C) 2010-2015 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 RRPARAMREGISTRY_H
#define RRPARAMREGISTRY_H 1

#include <string>

#include <stdint.h>

#include <boost/shared_ptr.hpp>

#include <dns/exceptions.h>

#include <dns/rdata.h>

namespace isc {
namespace dns {

// forward declarations
struct RRParamRegistryImpl;

class RRTypeExists : public isc::dns::Exception {
public:
    RRTypeExists(const char* file, size_t line, const char* what) :
        isc::dns::Exception(file, line, what) {}
};

class RRClassExists : public isc::dns::Exception {
public:
    RRClassExists(const char* file, size_t line, const char* what) :
        isc::dns::Exception(file, line, what) {}
};

namespace rdata {
class AbstractRdataFactory {

protected:
    AbstractRdataFactory() {}
public:
    virtual ~AbstractRdataFactory() {};



    virtual RdataPtr create(const std::string& rdata_str) const = 0;

    virtual RdataPtr create(isc::util::InputBuffer& buffer, size_t rdata_len) const = 0;

    virtual RdataPtr create(const rdata::Rdata& source) const = 0;

    virtual RdataPtr create(MasterLexer& lexer, const Name* origin,
                            MasterLoader::Options options,
                            MasterLoaderCallbacks& callbacks) const = 0;
};

typedef boost::shared_ptr<AbstractRdataFactory> RdataFactoryPtr;
} // end of namespace rdata

class RRParamRegistry {

private:
    RRParamRegistry();
    RRParamRegistry(const RRParamRegistry& orig);
    ~RRParamRegistry();
public:
    static RRParamRegistry& getRegistry();


    void add(const std::string& type_string, uint16_t type_code,
             const std::string& class_string, uint16_t class_code,
             rdata::RdataFactoryPtr rdata_factory);

    void add(const std::string& type_string, uint16_t type_code,
             rdata::RdataFactoryPtr rdata_factory);

    bool addType(const std::string& type_string, uint16_t type_code);

    bool removeType(uint16_t type_code);

    bool addClass(const std::string& class_string, uint16_t class_code);

    bool removeClass(uint16_t class_code);

    bool removeRdataFactory(const RRType& rrtype, const RRClass& rrclass);

    bool removeRdataFactory(const RRType& rrtype);


    bool textToTypeCode(const std::string& type_string,
                        uint16_t& type_code) const;

    std::string codeToTypeText(uint16_t type_code) const;

    bool textToClassCode(const std::string& class_string,
                         uint16_t& class_code) const;

    std::string codeToClassText(uint16_t class_code) const;


    rdata::RdataPtr createRdata(const RRType& rrtype, const RRClass& rrclass,
                                const std::string& rdata_string);
    rdata::RdataPtr createRdata(const RRType& rrtype, const RRClass& rrclass,
                                isc::util::InputBuffer& buffer, size_t len);
    rdata::RdataPtr createRdata(const RRType& rrtype, const RRClass& rrclass,
                                const rdata::Rdata& source);

    rdata::RdataPtr createRdata(const RRType& rrtype, const RRClass& rrclass,
                                MasterLexer& lexer, const Name* origin,
                                MasterLoader::Options options,
                                MasterLoaderCallbacks& callbacks);

private:
    RRParamRegistryImpl* impl_;
};

}
}
#endif  // RRPARAMREGISTRY_H

// Local Variables:
// mode: c++
// End: