Initial commit

Lts/Services/AudioVideoManagement/vd_comm.h

@@ -0,0 +1,86 @@
+/**
+  * @RDE_HEADER@
+  * Video download communication
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  * Created by Astrid Müller, SGAS, 2018-02-22
+  */
+
+#pragma once
+
+#include "ivd_comm.h"
+#include "ava_types.h"
+#include "avm_export.h"
+#include "logger.h"
+#include <AudioVideoManagement/av_socket.h>
+#include <QList>
+#include <QtGlobal>
+#include <chrono>
+
+class QByteArray;
+class QString;
+class QStringList;
+
+namespace AudioVideoManagement
+{
+
+/**
+ * Implements the client-side of the RCP/VD-Protocoll -- i.e. the communication with AVS_Export.
+ *
+ * The Idea of this class is simply to provide
+ * 1. Methods to issue commands
+ * 2. Signals for incoming replys (defined in IVdComm).
+ * 3. Possibly reconnecting when the connection got lost.
+ * Observing the connection using KeepAlives is done by VdSession.
+ *
+ * A command can have multiple replys and thus can trigger multiple signals.
+ * The layer above is then responsible to keep track of certain states in the protocol
+ * and to e.g. assemble the received information into a more abstract format.
+ *
+ * @see VdControl
+ * @see VdSession
+ * @author Astrid Müller, Christian Fröbel
+ */
+class AVM_COMMON_EXPORT VdComm : public IVdComm
+{
+  Q_OBJECT
+
+public:
+  VdComm(const QString &vdHost, quint16 vdPort);
+
+  void start();
+  void forceDisconnect() override;
+
+  void switchContext(int exerciseId) override;
+
+  void vdSetScript(const QString &scriptName, AvaStreamType typ, int fileSplitting, const QVector<AvaScriptEntry> &streams,
+                   const QString &exportedDirBaseName, const QString &absolutePath) override;
+  void vdReleaseScript(const QString &scriptName) override;
+
+  void keepAlive() override;
+
+private slots:
+  void onReadyRead(QTcpSocket *socket);
+
+private:
+  enum class Response
+  {
+    Ok = 200,
+    ScriptInfo = 230,
+    ScriptState = 231,
+    ScriptPos = 233,
+    ExportProgress = 271,
+    InvalidNameList = 292,
+    KeepAlive = 298,
+    EndOfParameterList = 299
+  };
+
+  void parseResponse(const QByteArray &line);
+
+  AVSocketWrapper             m_avSocket;
+  LOGGER_T                    m_logger;
+  LOGGER_T                    m_loggerIO;
+};
+
+} // namespace AudioVideoManagement