Initial commit

Lts/Services/RecordingManagement/db_writer_snapshot.h

@@ -0,0 +1,83 @@
+/**
+  * DbWriter for RecordingManagement
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  */
+#pragma once
+
+#include <QHash>
+#include <QMutex>
+#include <QThread>
+#include <QVector>
+#include <memory>
+
+#include "logger.h"
+
+class NSqlQuery;
+namespace NGL
+{
+class Settings;
+}
+namespace RecordReplay
+{
+class RecordReplayPlugin;
+}
+namespace RecordingManagement
+{
+class DatabaseInterface;
+
+class DbWriterSnapshot : public QObject
+{
+  Q_OBJECT
+public:
+  explicit DbWriterSnapshot(const QVector<RecordReplay::RecordReplayPlugin *> &plugins,
+                            int exerciseId,
+                            NGL::Settings *settings);
+  ~DbWriterSnapshot();
+
+  /**
+   * Set the minimum sample time per topic which was found during the last record calls
+   * to ensure, that all telegrams are considered during snapshot creation
+   * because some telegrams can come in very later (tetra buffering / player unit out of tetra coverage)
+   */
+  void setMinRecordedSampleTimes(const QHash<QString, qint64> &minRecordedSampleTimes);
+  void init();
+  void cleanup();
+private:
+  static QString dbConnectionName() { return QStringLiteral("DbWriterSnapshotThread"); }
+  void initSnapshot();
+  QHash<QString, qint64> getMinRecordedSampleTimes(qint64 getUntil);
+  void writeSnapshotData();
+  void writeSnapshotDataPlugin(qint64 endInterval,
+                               NSqlQuery &recSnapshotQuery,
+                               RecordReplay::RecordReplayPlugin *recPlugin,
+                               const QHash<QString, qint64> &minRecordedSampleTimes);
+
+private:
+  QVector<RecordReplay::RecordReplayPlugin *> m_plugins;
+  int                                         m_snapshotInterval;
+  QHash<QString, qint64>                      m_minRecordedSampleTimes;  // do not access directly, only through minRecordedSampleTime()
+  QMutex                                      m_minRecordedSampleTimesMutex;
+  std::shared_ptr<DatabaseInterface>          m_dbInterface;
+  int                                         m_exerciseId;
+  NGL::Settings                              *m_settings;
+  LOGGER_T m_logger;
+};
+
+
+class DbWriterSnapshotThread : public QThread
+{
+  Q_OBJECT
+public:
+  DbWriterSnapshotThread(DbWriterSnapshot *dbWriterSnapshot, QObject *parent = nullptr)
+    : QThread(parent)
+    , m_dbWriterSnapshot(dbWriterSnapshot)
+  {}
+protected:
+  void run() override final;
+private:
+  DbWriterSnapshot *m_dbWriterSnapshot;
+};
+
+} // namespace RecordingManagement