1 files changed, 107 insertions, 0 deletions
diff --git a/Swiften/Component/ComponentConnector.cpp b/Swiften/Component/ComponentConnector.cpp
new file mode 100644
index 0000000..e764138
--- /dev/null
+++ b/Swiften/Component/ComponentConnector.cpp
@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2010 Remko Tronçon
+ * Licensed under the GNU General Public License v3.
+ * See Documentation/Licenses/GPLv3.txt for more information.
+ */
+
+#include "Swiften/Component/ComponentConnector.h"
+
+#include <boost/bind.hpp>
+#include <iostream>
+
+#include "Swiften/Network/ConnectionFactory.h"
+#include "Swiften/Network/DomainNameResolver.h"
+#include "Swiften/Network/DomainNameAddressQuery.h"
+#include "Swiften/Network/TimerFactory.h"
+
+namespace Swift {
+
+ComponentConnector::ComponentConnector(const String& hostname, int port, DomainNameResolver* resolver, ConnectionFactory* connectionFactory, TimerFactory* timerFactory) : hostname(hostname), port(port), resolver(resolver), connectionFactory(connectionFactory), timerFactory(timerFactory), timeoutMilliseconds(0) {
+}
+
+void ComponentConnector::setTimeoutMilliseconds(int milliseconds) {
+	timeoutMilliseconds = milliseconds;
+}
+
+void ComponentConnector::start() {
+	assert(!currentConnection);
+	assert(!timer);
+	assert(!addressQuery);
+	addressQuery = resolver->createAddressQuery(hostname);
+	addressQuery->onResult.connect(boost::bind(&ComponentConnector::handleAddressQueryResult, shared_from_this(), _1, _2));
+	if (timeoutMilliseconds > 0) {
+		timer = timerFactory->createTimer(timeoutMilliseconds);
+		timer->onTick.connect(boost::bind(&ComponentConnector::handleTimeout, shared_from_this()));
+		timer->start();
+	}
+	addressQuery->run();
+}
+
+void ComponentConnector::stop() {
+	finish(boost::shared_ptr<Connection>());
+}
+
+
+void ComponentConnector::handleAddressQueryResult(const std::vector<HostAddress>& addresses, boost::optional<DomainNameResolveError> error) {
+	addressQuery.reset();
+	if (error || addresses.empty()) {
+		finish(boost::shared_ptr<Connection>());
+	}
+	else {
+		addressQueryResults = std::deque<HostAddress>(addresses.begin(), addresses.end());
+		tryNextAddress();
+	}
+}
+
+void ComponentConnector::tryNextAddress() {
+	assert(!addressQueryResults.empty());
+	HostAddress address = addressQueryResults.front();
+	addressQueryResults.pop_front();
+	tryConnect(HostAddressPort(address, port));
+}
+
+void ComponentConnector::tryConnect(const HostAddressPort& target) {
+	assert(!currentConnection);
+	currentConnection = connectionFactory->createConnection();
+	currentConnection->onConnectFinished.connect(boost::bind(&ComponentConnector::handleConnectionConnectFinished, shared_from_this(), _1));
+	currentConnection->connect(target);
+}
+
+void ComponentConnector::handleConnectionConnectFinished(bool error) {
+	currentConnection->onConnectFinished.disconnect(boost::bind(&ComponentConnector::handleConnectionConnectFinished, shared_from_this(), _1));
+	if (error) {
+		currentConnection.reset();
+		if (!addressQueryResults.empty()) {
+			tryNextAddress();
+		}
+		else {
+			finish(boost::shared_ptr<Connection>());
+		}
+	}
+	else {
+		finish(currentConnection);
+	}
+}
+
+void ComponentConnector::finish(boost::shared_ptr<Connection> connection) {
+	if (timer) {
+		timer->stop();
+		timer->onTick.disconnect(boost::bind(&ComponentConnector::handleTimeout, shared_from_this()));
+		timer.reset();
+	}
+	if (addressQuery) {
+		addressQuery->onResult.disconnect(boost::bind(&ComponentConnector::handleAddressQueryResult, shared_from_this(), _1, _2));
+		addressQuery.reset();
+	}
+	if (currentConnection) {
+		currentConnection->onConnectFinished.disconnect(boost::bind(&ComponentConnector::handleConnectionConnectFinished, shared_from_this(), _1));
+		currentConnection.reset();
+	}
+	onConnectFinished(connection);
+}
+
+void ComponentConnector::handleTimeout() {
+	finish(boost::shared_ptr<Connection>());
+}
+
+};