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/*
* RequestManager.h
*
* Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
*
* 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, either version 3 of the License, or
* (at your option) any later version.
*
* 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 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 MAD_COMMON_REQUESTMANAGER_H_
#define MAD_COMMON_REQUESTMANAGER_H_
#include "export.h"
#include "Request.h"
#include "RequestHandlerGroup.h"
#include <map>
#include <memory>
#include <string>
#include <boost/thread/locks.hpp>
#include <boost/thread/shared_mutex.hpp>
namespace Mad {
namespace Common {
class Application;
class MAD_COMMON_EXPORT RequestManager : private boost::noncopyable {
private:
friend class Application;
friend class RequestHandler;
class MAD_COMMON_EXPORT RequestMap : private boost::noncopyable {
private:
typedef std::map<boost::uint16_t, boost::shared_ptr<RequestHandler> > IdMap;
typedef std::map<const RequestHandler*, std::pair<Connection*, boost::uint16_t> > HandlerMap;
std::map<Connection*, IdMap> connectionMap;
HandlerMap handlerMap;
public:
void registerConnection(Connection *connection) {
connectionMap.insert(std::make_pair(connection, IdMap()));
}
void unregisterConnection(Connection *connection);
bool isConnectionRegistered(Connection *connection) const {
return connectionMap.count(connection);
}
bool addRequest(Connection *con, boost::uint16_t id, boost::shared_ptr<RequestHandler> info);
boost::shared_ptr<RequestHandler> findRequest(Connection *con, boost::uint16_t id);
void deleteRequest(Connection *con, boost::uint16_t id);
std::pair<Connection*, boost::uint16_t> getRequestInfo(const RequestHandler *requestHandler);
};
template<typename T> class RequestHandlerFactory0 : public RequestHandlerGroup {
private:
std::set<std::string> types;
public:
RequestHandlerFactory0(const std::string &type) {
types.insert(type);
}
virtual const std::set<std::string>& getPacketTypes() {
return types;
}
virtual boost::shared_ptr<RequestHandler> createRequestHandler(Application *application, const std::string& /*type*/) {
return boost::shared_ptr<RequestHandler>(new T(application));
}
};
template<typename T, typename T1> class RequestHandlerFactory1 : public RequestHandlerGroup {
private:
std::set<std::string> types;
T1 arg1;
public:
RequestHandlerFactory1(const std::string &type, T1 argT1) : arg1(argT1) {
types.insert(type);
}
virtual const std::set<std::string>& getPacketTypes() {
return types;
}
virtual boost::shared_ptr<RequestHandler> createRequestHandler(Application *application, const std::string& /*type*/) {
return boost::shared_ptr<RequestHandler>(new T(application, arg1));
}
};
Application *application;
boost::shared_mutex mutex;
RequestMap requestMap;
boost::uint16_t lastRequestId;
std::map<std::string, boost::shared_ptr<RequestHandlerGroup> > requestHandlerGroups;
boost::uint16_t _getRequestId() {
return lastRequestId+=2;
}
void receiveHandler(Connection *connection, boost::shared_ptr<const XmlData> packet, boost::uint16_t requestId);
void handleRequestFinished(Connection *con, boost::uint16_t requestId) {
boost::lock_guard<boost::shared_mutex> lock(mutex);
requestMap.deleteRequest(con, requestId);
}
boost::uint16_t _getUnusedRequestId(Connection *connection);
bool send(Request *request);
RequestManager(Application *application0, bool server);
public:
void registerConnection(Connection *connection);
void unregisterConnection(Connection *connection) {
boost::lock_guard<boost::shared_mutex> lock(mutex);
requestMap.unregisterConnection(connection);
}
void registerRequestHandlerGroup(boost::shared_ptr<RequestHandlerGroup> requestHandlerGroup) {
boost::lock_guard<boost::shared_mutex> lock(mutex);
const std::set<std::string> &types = requestHandlerGroup->getPacketTypes();
for(std::set<std::string>::const_iterator type = types.begin(); type != types.end(); ++type)
requestHandlerGroups.insert(std::make_pair(*type, requestHandlerGroup));
}
void unregisterRequestHandlerGroup(boost::shared_ptr<RequestHandlerGroup> requestHandlerGroup) {
boost::lock_guard<boost::shared_mutex> lock(mutex);
const std::set<std::string> &types = requestHandlerGroup->getPacketTypes();
for(std::set<std::string>::const_iterator type = types.begin(); type != types.end(); ++type) {
std::map<std::string, boost::shared_ptr<RequestHandlerGroup> >::iterator it = requestHandlerGroups.find(*type);
if(it == requestHandlerGroups.end() || it->second != requestHandlerGroup)
continue;
requestHandlerGroups.erase(it);
}
}
template <class T> void registerPacketType(const std::string &type) {
registerRequestHandlerGroup(boost::shared_ptr<RequestHandlerFactory0<T> >(new RequestHandlerFactory0<T>(type)));
}
template <class T, class T1> void registerPacketType(const std::string &type, T1 arg1) {
registerRequestHandlerGroup(boost::shared_ptr<RequestHandlerFactory1<T, T1> >(new RequestHandlerFactory1<T, T1>(type, arg1)));
}
void unregisterPacketType(const std::string &type) {
boost::lock_guard<boost::shared_mutex> lock(mutex);
requestHandlerGroups.erase(type);
}
bool sendRequest(Connection *connection, boost::shared_ptr<Request> request);
};
}
}
#endif /* MAD_COMMON_REQUESTMANAGER_H_ */
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