Initial commit

Lts/Proxies/ComponentMonitor/checkmk_handler.h

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+/**
+  * @RDE_HEADER@
+  * Handler for CheckmkHandler
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  * Created by Norbert Thoden, SLSE, 2022-11-03
+  */
+
+#pragma once
+
+#include "logger.h"
+#include <InfrastructureManagement/ism_dtc.h>
+#include <ComponentMonitor/cmo.hpp>
+#include <QTimer>
+#include <QTcpSocket>
+#include <QDataStream>
+
+namespace DDSConnector
+{
+class DdsConnector;
+}
+
+namespace ComponentMonitor
+{
+class DdsHandler;
+
+// Maybe helpful:
+// https://docs.checkmk.com/latest/de/livestatus.html
+// https://docs.checkmk.com/latest/de/livestatus_references.html
+// https://github.com/sileht/check_mk/blob/master/livestatus/api/python/livestatus.py
+
+class CheckmkHandler : public QObject
+{
+  Q_OBJECT
+
+public:
+  CheckmkHandler();
+  ~CheckmkHandler();
+
+  bool initialize(const QString &checkMkServerHostname, int checkMkServerPort, int checkIntervalSec);
+
+  void run();
+  void stop();
+  bool doConnect();
+
+public Q_SLOTS:
+  void onImmediateGetStateRequested();
+
+private:
+  bool writeGetStateRequest();
+
+Q_SIGNALS:
+  void newState(QString hostname, bool state, long long lastCheck);
+
+private Q_SLOTS:
+  void onTimeout();
+  void readData();
+  void onConnected();
+  void onStateChanged(const QAbstractSocket::SocketState &newState);
+  void onSocketError(const QAbstractSocket::SocketError &socketError);
+
+
+protected:
+  bool processLine(const QByteArray &line);
+
+private:
+  // checkMkServer
+  QString                     m_checkMkHost;
+  quint16                     m_checkMkPort{0};
+  int                         m_checkIntervalSec{60};
+  int                         m_highFrequencyCheck{-1};
+  QTimer                     *m_timer{nullptr};
+
+  QTcpSocket                 *m_socket{nullptr};
+
+  NGL::INGLLogger            &m_logger;
+};
+
+
+} // namespace ComponentMonitor