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qt5-legatus-legacy/Lts/Proxies/TrainingAreaBase/Plugins/WlsTetra/wls_dispatcher.cpp
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2026-08-13 18:33:10 +02:00

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C++
Executable File

/**
* Send / Receive telegrams to/from Wls
* $Id$
* $HeadURL$
* $Author$
* Created by Christian Ehrlicher, SLSE, 2016-09-26
*/
#include "wls_dispatcher.h"
#include "wls_handler_rx.h"
#include "wls_handler_tx.h"
#include <QSettings>
#include <QWebSocket>
#include <QTimer>
#include <nglsettings/nglsettings_settings.h>
namespace WlsTetra
{
WlsDispatcher::WlsDispatcher(TrainingAreaBase::Plugin::DataProvider *pdp,
const std::shared_ptr<TrainingAreaBase::RecvFromTab> &recvFromTabCb,
NGL::Settings *settings)
: m_recvFromTabCb(recvFromTabCb)
, m_recvFromWls(std::make_shared<WlsHandlerRx>(recvFromTabCb, this))
, m_sendToWls(std::make_shared<WlsHandlerTx>(pdp, this))
, m_settings(settings)
, m_webSocket(new QWebSocket(QString(), QWebSocketProtocol::VersionLatest, this))
, m_webSocketReconnectTimer(new QTimer(this))
, m_bWarnedOnce(false)
, m_logger(getLogger("WlsDispatcher"))
{
connect(m_webSocket, QOverload<QAbstractSocket::SocketError>::of(&QWebSocket::error),
this, &WlsDispatcher::onWebSocketError);
connect(m_webSocket, &QWebSocket::connected,
this, &WlsDispatcher::onWlsConnected);
connect(m_webSocket, &QWebSocket::disconnected,
this, &WlsDispatcher::onWlsDisconnected);
connect(m_webSocket, &QWebSocket::textMessageReceived,
this, &WlsDispatcher::onTextMessageReceived);
connect(m_webSocketReconnectTimer, &QTimer::timeout,
this, &WlsDispatcher::init);
connect(m_recvFromWls.get(), &WlsHandlerRx::participantConnectionState,
m_sendToWls.get(), &WlsHandlerTx::onParticipantConnectionState);
}
bool WlsDispatcher::init()
{
emit connectionState(QString::fromUtf8(name()), false);
const QUrl url(webSocketUrl());
if (!m_bWarnedOnce)
NOTICE_LOG(m_logger) << "Using WebSocket url: " << url.toString();
m_webSocket->open(url);
return true;
}
std::shared_ptr<TrainingAreaBase::SendToTab> WlsDispatcher::sendToTab()
{
return std::static_pointer_cast<TrainingAreaBase::SendToTab>(m_sendToWls);
}
bool WlsDispatcher::canSendData() const
{
return m_webSocket && m_webSocket->state() == QAbstractSocket::ConnectedState;
}
void WlsDispatcher::onWlsConnected()
{
QWebSocket *ws = qobject_cast<QWebSocket *>(sender());
m_sendToWls->onWlsConnected(ws);
m_webSocketReconnectTimer->stop();
m_bWarnedOnce = false;
}
void WlsDispatcher::onWlsDisconnected()
{
INFO_LOG(m_logger) << "Wls socket disconnected";
m_webSocketReconnectTimer->start(5000);
m_sendToWls->onWlsDisconnected();
emit connectionState(QString::fromUtf8(name()), false);
}
void WlsDispatcher::onWlsExternalConnectionStateChanged(bool bConnected)
{
m_sendToWls->onWlsConnectedToExternalSystem(bConnected);
emit connectionState(QString::fromUtf8(name()), bConnected);
}
void WlsDispatcher::onWebSocketError()
{
if (!m_webSocket)
return;
if (!m_bWarnedOnce)
WARNING_LOG(m_logger) << "Error connecting to " << webSocketUrl().toString() << ": " << m_webSocket->errorString();
m_webSocket->close();
m_webSocketReconnectTimer->start(5000);
m_bWarnedOnce = true;
emit connectionState(QString::fromUtf8(name()), false);
}
void WlsDispatcher::onTextMessageReceived(const QString &message)
{
// convert from json to internal representation, send to TAB
m_recvFromWls->handleTelegram(message.toUtf8());
}
void WlsDispatcher::onParticipantLicenseChange(const TrainingAreaBase::TetraIcd::ParticipantLicenseChange &lc)
{
INFO_LOG(m_logger) << "onParticipantLicenseChange id=" << lc.id()
<< " equipmentNumber=" << lc.equipmentNumber;
m_recvFromWls->participantLicenseChange(lc);
}
QUrl WlsDispatcher::webSocketUrl() const
{
const quint16 port = m_settings->settings()->value(QStringLiteral("WLS/webSocketListenPort"), 12346).toInt();
const QString addr = m_settings->settings()->value(QStringLiteral("WLS/webSocketHostname"), QStringLiteral("localhost")).toString();
return QUrl(QStringLiteral("ws://%1:%2/").arg(addr).arg(port));
}
} // namespace WlsTetra