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/*
* Copyright (c) 2010 Remko Tronçon
* Licensed under the GNU General Public License v3.
* See Documentation/Licenses/GPLv3.txt for more information.
*/
#include "Swiften/Queries/IQRouter.h"
#include <algorithm>
#include <boost/bind.hpp>
#include "Swiften/Base/foreach.h"
#include "Swiften/Queries/IQHandler.h"
#include "Swiften/Queries/IQChannel.h"
#include "Swiften/Elements/ErrorPayload.h"
namespace Swift {
static void noop(IQHandler*) {}
IQRouter::IQRouter(IQChannel* channel) : channel_(channel), queueRemoves_(false) {
channel->onIQReceived.connect(boost::bind(&IQRouter::handleIQ, this, _1));
}
IQRouter::~IQRouter() {
channel_->onIQReceived.disconnect(boost::bind(&IQRouter::handleIQ, this, _1));
}
bool IQRouter::isAvailable() {
return channel_->isAvailable();
}
void IQRouter::handleIQ(boost::shared_ptr<IQ> iq) {
queueRemoves_ = true;
bool handled = false;
// Go through the handlers in reverse order, to give precedence to the last added handler
std::vector<boost::shared_ptr<IQHandler> >::const_reverse_iterator i = handlers_.rbegin();
std::vector<boost::shared_ptr<IQHandler> >::const_reverse_iterator rend = handlers_.rend();
for (; i != rend; ++i) {
handled |= (*i)->handleIQ(iq);
if (handled) {
break;
}
}
if (!handled && (iq->getType() == IQ::Get || iq->getType() == IQ::Set) ) {
sendIQ(IQ::createError(iq->getFrom(), iq->getID(), ErrorPayload::FeatureNotImplemented, ErrorPayload::Cancel));
}
processPendingRemoves();
queueRemoves_ = false;
}
void IQRouter::processPendingRemoves() {
foreach(boost::shared_ptr<IQHandler> handler, queuedRemoves_) {
handlers_.erase(std::remove(handlers_.begin(), handlers_.end(), handler), handlers_.end());
}
queuedRemoves_.clear();
}
void IQRouter::addHandler(IQHandler* handler) {
addHandler(boost::shared_ptr<IQHandler>(handler, noop));
}
void IQRouter::removeHandler(IQHandler* handler) {
removeHandler(boost::shared_ptr<IQHandler>(handler, noop));
}
void IQRouter::addHandler(boost::shared_ptr<IQHandler> handler) {
handlers_.push_back(handler);
}
void IQRouter::removeHandler(boost::shared_ptr<IQHandler> handler) {
if (queueRemoves_) {
queuedRemoves_.push_back(handler);
}
else {
handlers_.erase(std::remove(handlers_.begin(), handlers_.end(), handler), handlers_.end());
}
}
void IQRouter::sendIQ(boost::shared_ptr<IQ> iq) {
if (from_.isValid()) {
iq->setFrom(from_);
}
channel_->sendIQ(iq);
}
std::string IQRouter::getNewIQID() {
return channel_->getNewIQID();
}
}
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Swift