std::string JinglePayloadSerializer::serializePayload(std::shared_ptr<JinglePayload> payload) const {
    XMLElement jinglePayload("jingle", "urn:xmpp:jingle:1");
    jinglePayload.setAttribute("action", actionToString(payload->getAction()));
    jinglePayload.setAttribute("initiator", payload->getInitiator());
    jinglePayload.setAttribute("sid", payload->getSessionID());

    std::vector<std::shared_ptr<Payload> > payloads = payload->getPayloads();
    if (!payloads.empty()) {
        for (auto&& subPayload : payloads) {
            PayloadSerializer* serializer = serializers->getPayloadSerializer(subPayload);
            if (serializer) {
                jinglePayload.addNode(std::make_shared<XMLRawTextNode>(serializer->serialize(subPayload)));
            }
        }
    }

    if (payload->getReason().is_initialized()) {
        std::shared_ptr<XMLElement> reason = std::make_shared<XMLElement>("reason");
        reason->addNode(std::make_shared<XMLElement>(reasonTypeToString(payload->getReason()->type)));
        if (!payload->getReason()->text.empty()) {
            reason->addNode(std::make_shared<XMLElement>("desc", "", payload->getReason()->text));
        }
        jinglePayload.addNode(reason);
    }

    return jinglePayload.serialize();
}
boost::optional<std::string> RawXMLElementConvertor::convertToLua(lua_State* L, boost::shared_ptr<Element> element) {
	boost::shared_ptr<Payload> payload = boost::dynamic_pointer_cast<Payload>(element);
	if (!payload) {
		return boost::optional<std::string>();
	}
	PayloadSerializer* serializer = serializers.getPayloadSerializer(payload);
	assert(serializer);
	lua_pushstring(L, serializer->serialize(payload).c_str());
	return std::string("xml");
}
std::string PayloadsSerializer::serialize(boost::shared_ptr<Payload> payload) {
	PayloadSerializer* serializer = serializers.getPayloadSerializer(payload);
	if (serializer) {
		return serializer->serialize(payload);
	}
	else {
		CPPUNIT_ASSERT(false);
		return "";
	}
}
std::string MUCUserPayloadSerializer::serializePayload(boost::shared_ptr<MUCUserPayload> payload)  const {
	XMLElement mucElement("x", "http://jabber.org/protocol/muc#user");
	foreach (const MUCUserPayload::StatusCode statusCode, payload->getStatusCodes()) {
		boost::shared_ptr<XMLElement> statusElement(new XMLElement("status"));
		std::ostringstream code;
		code << statusCode.code;
		statusElement->setAttribute("code", code.str());
		mucElement.addNode(statusElement);
	}
	foreach (const MUCItem& item, payload->getItems()) {
		mucElement.addNode(MUCItemSerializer::itemToElement(item));
	}

	if (payload->getPassword()) {
		boost::shared_ptr<XMLElement> passwordElement = boost::make_shared<XMLElement>("password");
		passwordElement->addNode(boost::make_shared<XMLTextNode>(*payload->getPassword()));
	}

	if (payload->getInvite()) {
		MUCUserPayload::Invite invite = *payload->getInvite();
		boost::shared_ptr<XMLElement> inviteElement = boost::make_shared<XMLElement>("invite");
		if (invite.to.isValid()) {
			inviteElement->setAttribute("to", invite.to.toString());
		}
		if (invite.from.isValid()) {
			inviteElement->setAttribute("from", invite.from.toString());
		}
		if (!invite.reason.empty()) {
			boost::shared_ptr<XMLElement> reasonElement = boost::make_shared<XMLElement>("reason");
			reasonElement->addNode(boost::make_shared<XMLTextNode>(invite.reason));
		}
		mucElement.addNode(inviteElement);
	}

	boost::shared_ptr<Payload> childPayload = payload->getPayload();
	if (childPayload) {
		PayloadSerializer* serializer = serializers->getPayloadSerializer(childPayload);
		if (serializer) {
			mucElement.addNode(boost::make_shared<XMLRawTextNode>(serializer->serialize(childPayload)));
		}
	}
	return mucElement.serialize();
}