UHttpRequestHandler.h

#ifndef DISABLE_REST_API
/*
 * Copyright (c) 2015 Pavel Vainerman.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, version 2.1.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Lesser Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
// -------------------------------------------------------------------------
#ifndef UHttpRequesrHandler_H_
#define UHttpRequesrHandler_H_
// -------------------------------------------------------------------------
#include <memory>
#include <Poco/Net/HTTPRequestHandler.h>
#include <Poco/Net/HTTPRequestHandlerFactory.h>
#include <Poco/Net/HTTPServerRequest.h>
#include <Poco/Net/HTTPServerResponse.h>
#include <Poco/URI.h>
#include <Poco/JSON/Object.h>
#include "ujson.h"
#include "DebugStream.h"
// -------------------------------------------------------------------------
// -------------------------------------------------------------------------
namespace uniset
{
namespace UHttp
{
// текущая версия API
const std::string UHTTP_API_VERSION = "v0";

class IHttpRequest
{
    public:
        IHttpRequest() {}
        virtual ~IHttpRequest() {}

        // throw SystemError
        virtual Poco::JSON::Object::Ptr httpGet( const Poco::URI::QueryParameters& p ) = 0;
        virtual Poco::JSON::Object::Ptr httpHelp( const Poco::URI::QueryParameters& p ) = 0;

        // не обязательная функция.
        virtual Poco::JSON::Object::Ptr httpRequest( const std::string& req, const Poco::URI::QueryParameters& p );
};
// -------------------------------------------------------------------------
class IHttpRequestRegistry
{
    public:
        IHttpRequestRegistry() {}
        virtual ~IHttpRequestRegistry() {}

        // throw SystemError, NameNotFound
        virtual Poco::JSON::Object::Ptr httpGetByName( const std::string& name, const Poco::URI::QueryParameters& p ) = 0;

        // throw SystemError
        virtual Poco::JSON::Array::Ptr httpGetObjectsList( const Poco::URI::QueryParameters& p ) = 0;
        virtual Poco::JSON::Object::Ptr httpHelpByName( const std::string& name, const Poco::URI::QueryParameters& p ) = 0;
        virtual Poco::JSON::Object::Ptr httpRequestByName( const std::string& name, const std::string& req, const Poco::URI::QueryParameters& p ) = 0;
};

// -------------------------------------------------------------------------
class UHttpRequestHandler:
    public Poco::Net::HTTPRequestHandler
{
    public:
        UHttpRequestHandler( std::shared_ptr<IHttpRequestRegistry> _registry );

        virtual void handleRequest( Poco::Net::HTTPServerRequest& req, Poco::Net::HTTPServerResponse& resp ) override;

    private:

        std::shared_ptr<IHttpRequestRegistry> registry;
        std::shared_ptr<DebugStream> log;
};
// -------------------------------------------------------------------------
class UHttpRequestHandlerFactory:
    public Poco::Net::HTTPRequestHandlerFactory
{
    public:

        UHttpRequestHandlerFactory( std::shared_ptr<IHttpRequestRegistry>& _registry );

        virtual Poco::Net::HTTPRequestHandler* createRequestHandler( const Poco::Net::HTTPServerRequest& ) override;

    private:
        std::shared_ptr<IHttpRequestRegistry> registry;
};
}
// -------------------------------------------------------------------------
} // end of uniset namespace
// -------------------------------------------------------------------------
#endif // UHttpRequesrHandler_H_
// -------------------------------------------------------------------------
#endif