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/*
* RequestManager.cpp
*
* 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 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "RequestManager.h"
#include "RequestHandlers/DisconnectRequestHandler.h"
#include "Logger.h"
#include <sigc++/bind.h>
#include <sigc++/retype_return.h>
namespace Mad {
namespace Common {
RequestManager RequestManager::requestManager;
RequestManager::RequestMap::~RequestMap() {
for(iterator it = begin(); it != end(); ++it)
delete it->second;
}
bool RequestManager::RequestMap::addRequest(uint16_t id, RequestHandler *info) {
if(!insert(std::make_pair(id, info)).second)
return false;
info->signalFinished().connect(sigc::hide_return(sigc::bind(sigc::mem_fun(this, &RequestManager::RequestMap::deleteRequest), id)));
return true;
}
RequestHandler* RequestManager::RequestMap::findRequest(uint16_t id) {
iterator it = find(id);
if(it == end())
return 0;
return it->second;
}
bool RequestManager::RequestMap::deleteRequest(uint16_t id) {
iterator it = find(id);
if(it == end())
return false;
delete it->second;
erase(it);
return true;
}
void RequestManager::receiveHandler(Connection *connection, const XmlPacket &packet, uint16_t requestId) {
std::map<Connection*,RequestMap*>::iterator it = requestMaps.find(connection);
if(it == requestMaps.end()) {
// TODO: Error
Logger::log(Logger::ERROR, "Received a packet from an unregistered connection.");
return;
}
RequestMap *requestMap = it->second;
RequestHandler *request = requestMap->findRequest(requestId);
if(request) {
request->handlePacket(packet);
return;
}
std::map<std::string,RequestHandlerFactory*>::iterator factoryIt = requestHandlerFactories.find(packet.getType());
if(factoryIt != requestHandlerFactories.end()) {
request = factoryIt->second->createRequestHandler(connection, requestId);
requestMap->addRequest(requestId, request);
request->handlePacket(packet);
return;
}
Logger::logf(Logger::ERROR, "Received an unexpected packet with type '%s'.", packet.getType().c_str());
XmlPacket ret;
ret.setType("Error");
ret.add("ErrorCode", Exception::UNEXPECTED_PACKET);
connection->sendPacket(ret, requestId);
}
RequestManager::RequestMap* RequestManager::getUnusedRequestId(Connection *connection, uint16_t *requestId) {
std::map<Connection*,RequestMap*>::iterator it = requestMaps.find(connection);
if(it == requestMaps.end()) {
Logger::log(Logger::CRITICAL, "Trying to send a request over an unregistered connecion.");
return 0;
}
RequestMap *requestMap = it->second;
do {
*requestId = getRequestId();
} while(requestMap->findRequest(*requestId));
return requestMap;
}
void RequestManager::registerConnection(Connection *connection) {
requestMaps.insert(std::make_pair(connection, new RequestMap()));
connection->signalReceive().connect(sigc::bind<0>(sigc::mem_fun(this, &RequestManager::receiveHandler), connection));
}
void RequestManager::unregisterConnection(Connection *connection) {
std::map<Connection*,RequestMap*>::iterator it = requestMaps.find(connection);
if(it != requestMaps.end()) {
delete it->second;
requestMaps.erase(it);
}
}
void RequestManager::unregisterPacketType(const std::string &type) {
std::map<std::string,RequestHandlerFactory*>::iterator it = requestHandlerFactories.find(type);
if(it == requestHandlerFactories.end())
return;
delete it->second;
requestHandlerFactories.erase(it);
}
RequestManager::RequestManager() : core(false), lastRequestId(-1) {
registerPacketType<RequestHandlers::DisconnectRequestHandler>("Disconnect");
}
RequestManager::~RequestManager() {
unregisterPacketType("Disconnect");
for(std::map<Connection*,RequestMap*>::iterator it = requestMaps.begin(); it != requestMaps.end(); ++it)
delete it->second;
for(std::map<std::string,RequestHandlerFactory*>::iterator it = requestHandlerFactories.begin(); it != requestHandlerFactories.end(); ++it)
delete it->second;
}
}
}
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