Initial commit

Lts/Services/AudioVideoManagement/import_handler.h

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+/**
+  * @RDE_HEADER@
+  * ImportHandler
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  * Created by Astrid Müller, Christian Fröbel, SLSE, 2017-12-12
+  */
+
+#pragma once
+
+#include <AudioVideoManagement/exercise_context.h>
+#include <AudioVideoManagement/avm_db.h>
+#include <QObject>
+#include <map>
+#include <cstdint>
+
+enum class DataModification;
+
+namespace AssetManagement
+{
+class Asset;
+
+namespace  Interface
+{
+class Dtc;
+} // namespace Interface
+} // namespace AssetManagement
+
+namespace AudioVideoManagement
+{
+
+class ExerciseHandler;
+
+/**
+ * The ImportHandler is responsible for the creation of the IMPORT_VIDEO_CHANNEL entries
+ * in avm.device_config for each Workstation for the given Exercise.
+ *
+ * @author Astrid Müller, Christian Fröbel
+ */
+class ImportHandler : public QObject
+{
+  Q_OBJECT
+
+public:
+  /** Creates the instance *and* connects the relevant signals. */
+  static ImportHandler *create(ExerciseHandler *exerciseHandler, DatabaseInterface *db, AssetManagement::Interface::Dtc *asmDtc);
+
+  /** Don't use, use create() instead. Only provided for UnitTests. */
+  ImportHandler(const ExerciseContext &context, DatabaseInterface *db, AssetManagement::Interface::Dtc *asmDtc);
+  virtual ~ImportHandler() = default;
+
+signals:
+  /** Signalled after device_config modifications. */
+  void avDbReloadNeeded();
+
+private slots:
+  void onContextActivated();
+  void onContextDeactivated();
+
+  void onAssetChanged(const AssetManagement::Asset &asset, DataModification modType);
+
+private:
+  void addToDb(const AssetManagement::Asset &asset);
+  void removeFromDb(const AssetManagement::Asset &asset);
+
+  ExerciseContext                                         m_context;
+  bool                                                    m_isActive{false};
+  DatabaseInterface                                      *m_db;
+  AssetManagement::Interface::Dtc                        *m_asmDtc;
+  using AssetId = int32_t;
+  std::map<AssetId, Database::AvmDeviceConfig>   m_deviceConfigs;
+};
+
+} // namespace AudioVideoManagement
+