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/*
* Copyright (c) 2011-2018 Isode Limited.
* All rights reserved.
* See the COPYING file for more information.
*/
#include <Swiften/Network/ChainedConnector.h>
#include <typeinfo>
#include <boost/bind.hpp>
#include <Swiften/Base/Log.h>
#include <Swiften/Network/ConnectionFactory.h>
#include <Swiften/Network/Connector.h>
using namespace Swift;
ChainedConnector::ChainedConnector(
const std::string& hostname,
unsigned short port,
const boost::optional<std::string>& serviceLookupPrefix,
DomainNameResolver* resolver,
const std::vector<ConnectionFactory*>& connectionFactories,
TimerFactory* timerFactory) :
hostname(hostname),
port(port),
serviceLookupPrefix(serviceLookupPrefix),
resolver(resolver),
connectionFactories(connectionFactories),
timerFactory(timerFactory),
timeoutMilliseconds(0) {
}
ChainedConnector::~ChainedConnector() {
if (currentConnector) {
currentConnector->onConnectFinished.disconnect(boost::bind(&ChainedConnector::handleConnectorFinished, this, _1, _2));
currentConnector->stop();
currentConnector.reset();
}
}
void ChainedConnector::setTimeoutMilliseconds(int milliseconds) {
timeoutMilliseconds = milliseconds;
}
void ChainedConnector::start() {
SWIFT_LOG(debug) << "Starting queued connector for " << hostname << std::endl;
connectionFactoryQueue = std::deque<ConnectionFactory*>(connectionFactories.begin(), connectionFactories.end());
tryNextConnectionFactory();
}
void ChainedConnector::stop() {
if (currentConnector) {
currentConnector->onConnectFinished.disconnect(boost::bind(&ChainedConnector::handleConnectorFinished, this, _1, _2));
currentConnector->stop();
currentConnector.reset();
}
finish(std::shared_ptr<Connection>(), std::shared_ptr<Error>());
}
void ChainedConnector::tryNextConnectionFactory() {
assert(!currentConnector);
if (connectionFactoryQueue.empty()) {
SWIFT_LOG(debug) << "No more connection factories" << std::endl;
finish(std::shared_ptr<Connection>(), lastError);
}
else {
ConnectionFactory* connectionFactory = connectionFactoryQueue.front();
SWIFT_LOG(debug) << "Trying next connection factory: " << typeid(*connectionFactory).name() << std::endl;
connectionFactoryQueue.pop_front();
currentConnector = Connector::create(hostname, port, serviceLookupPrefix, resolver, connectionFactory, timerFactory);
currentConnector->setTimeoutMilliseconds(timeoutMilliseconds);
currentConnector->onConnectFinished.connect(boost::bind(&ChainedConnector::handleConnectorFinished, this, _1, _2));
currentConnector->start();
}
}
void ChainedConnector::handleConnectorFinished(std::shared_ptr<Connection> connection, std::shared_ptr<Error> error) {
SWIFT_LOG(debug) << "Connector finished" << std::endl;
currentConnector->onConnectFinished.disconnect(boost::bind(&ChainedConnector::handleConnectorFinished, this, _1, _2));
lastError = error;
currentConnector.reset();
if (connection) {
finish(connection, error);
}
else {
tryNextConnectionFactory();
}
}
void ChainedConnector::finish(std::shared_ptr<Connection> connection, std::shared_ptr<Error> error) {
onConnectFinished(connection, error);
}
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Swift