added skeleton for the json connection server

libsrc/jsonserver/JsonServer.cpp

@@ -0,0 +1,57 @@
+// system includes
+#include <stdexcept>
+
+// project includes
+#include <jsonserver/JsonServer.h>
+#include "JsonClientConnection.h"
+
+JsonServer::JsonServer(Hyperion *hyperion, uint16_t port) :
+	QObject(),
+	_hyperion(hyperion),
+	_server(),
+	_openConnections()
+{
+	if (!_server.listen(QHostAddress::Any, port))
+	{
+		throw std::runtime_error("Json server could not bind to port");
+	}
+
+	// Set trigger for incoming connections
+	connect(&_server, SIGNAL(newConnection()), this, SLOT(newConnection()));
+}
+
+JsonServer::~JsonServer()
+{
+	foreach (JsonClientConnection * connection, _openConnections) {
+		delete connection;
+	}
+}
+
+uint16_t JsonServer::getPort() const
+{
+	return _server.serverPort();
+}
+
+void JsonServer::newConnection()
+{
+	std::cout << "New incoming json connection" << std::endl;
+	QTcpSocket * socket = _server.nextPendingConnection();
+
+	if (socket != nullptr)
+	{
+		JsonClientConnection * connection = new JsonClientConnection(socket);
+		_openConnections.insert(connection);
+
+		// register slot for cleaning up after the connection closed
+		connect(connection, SIGNAL(connectionClosed(JsonClientConnection*)), this, SLOT(closedConnection(JsonClientConnection*)));
+	}
+}
+
+void JsonServer::closedConnection(JsonClientConnection *connection)
+{
+	std::cout << "Json connection closed" << std::endl;
+	_openConnections.remove(connection);
+
+	// schedule to delete the connection object
+	connection->deleteLater();
+}