/// <summary>
/// Default data processing entry point for <see cref="DataWriter"/>.
/// </summary>
/// <param name="timestamp">Timestamp of <paramref name="dataBlock"/>.</param>
/// <param name="dataBlock">Points values read at current timestamp.</param>
public void Write(DateTime timestamp, DataPoint[] dataBlock)
{
if (m_settings.WriteToOpenHistorian) // Write to openHistorian
{
foreach (DataPoint point in dataBlock)
{
m_historianKey.Timestamp = point.Timestamp;
m_historianKey.PointID = point.PointID;
m_historianValue.Value1 = point.Value;
m_historianValue.Value3 = point.Flags;
m_historianArchive.Write(m_historianKey, m_historianValue);
}
}
if (m_settings.WriteToBerkeleyDB) // Write to Berkeley DB
{
//// Create a new pointList each time *slow
//KeyValuePair<DatabaseEntry, DatabaseEntry>[] pointList = new KeyValuePair<DatabaseEntry, DatabaseEntry>[dataBlock.Length];
//Parallel.For(0, pointList.Length, (i) => pointList[i] = new KeyValuePair<DatabaseEntry, DatabaseEntry>(
// new DatabaseEntry(BitConverter.GetBytes(timestamp.Ticks).Concat(BitConverter.GetBytes(dataBlock[i].PointID)).ToArray()),
// new DatabaseEntry(BitConverter.GetBytes(dataBlock[i].Value))));
//using (MultipleKeyDatabaseEntry buffer = new MultipleKeyDatabaseEntry(pointList, false))
//{
// m_berkeleyDb.Put(buffer);
//}
//Parallel.For(0, pointList.Length, (i) =>
//{
// pointList[i].Key.Dispose();
// pointList[i].Value.Dispose();
//});
//// Single writes using the same key and value each time *medium speed
//foreach (DataPoint point in dataBlock)
//{
// m_berkeleyDbKey.Data = BitConverter.GetBytes(timestamp.Ticks).Concat(BitConverter.GetBytes(point.PointID)).ToArray();
// m_berkeleyDbValue.Data = BitConverter.GetBytes(point.Value).ToArray();
// m_berkeleyDb.Put(m_berkeleyDbKey, m_berkeleyDbValue);
//}
// Bulk writes using the same pointList *fastest method found so far*
Parallel.For(0, dataBlock.Length, (i) =>
{
m_berkeleyDbPointList[i].Key.Data = BitConverter.GetBytes(timestamp.Ticks).Concat(BitConverter.GetBytes(dataBlock[i].PointID)).ToArray();
m_berkeleyDbPointList[i].Value.Data = BitConverter.GetBytes(dataBlock[i].Value);
});
using (MultipleKeyDatabaseEntry buffer = new MultipleKeyDatabaseEntry(m_berkeleyDbPointList.Take(dataBlock.Length), false))
{
m_berkeleyDb.Put(buffer);
}
}
}
/// <summary>
/// Archives <paramref name="measurements"/> locally.
/// </summary>
/// <param name="measurements">Measurements to be archived.</param>
/// <exception cref="InvalidOperationException">Local archive is closed.</exception>
protected override void ProcessMeasurements(IMeasurement[] measurements)
{
foreach (IMeasurement measurement in measurements)
{
m_key.Timestamp = (ulong)(long)measurement.Timestamp;
m_key.PointID = measurement.Key.ID;
// Since current time-series measurements are basically all floats - values fit into first value,
// this will change as value types for time-series framework expands
m_value.Value1 = BitConvert.ToUInt64((float)measurement.AdjustedValue);
m_value.Value3 = (ulong)measurement.StateFlags;
m_archive.Write(m_key, m_value);
}
m_archivedMeasurements += measurements.Length;
}