/// <summary>
/// Encode Payload Header
/// </summary>
/// <param name="encoder"></param>
private void EncodePayloadHeader(BinaryEncoder encoder)
{
if ((NetworkMessageContentMask & UadpNetworkMessageContentMask.PayloadHeader) != 0)
{
encoder.WriteByte("Count", (byte)m_uadpDataSetMessages.Count);
// Collect DataSetSetMessages headers
for (int index = 0; index < m_uadpDataSetMessages.Count; index++)
{
UadpDataSetMessage uadpDataSetMessage = m_uadpDataSetMessages[index];
if (uadpDataSetMessage.DataSet != null)
{
encoder.WriteUInt16("DataSetWriterId", uadpDataSetMessage.DataSetWriterId);
}
}
}
}
/// <summary>
/// Create the network message built from the provided writerGroupConfiguration
/// </summary>
/// <param name="writerGroupConfiguration"></param>
/// <returns></returns>
public override UaNetworkMessage CreateNetworkMessage(WriterGroupDataType writerGroupConfiguration)
{
UadpWriterGroupMessageDataType messageSettings = ExtensionObject.ToEncodeable(writerGroupConfiguration.MessageSettings)
as UadpWriterGroupMessageDataType;
if (messageSettings == null)
{
//Wrong configuration of writer group MessageSettings
return(null);
}
//Create list of dataSet messages to be sent
List <UadpDataSetMessage> dataSetMessages = new List <UadpDataSetMessage>();
foreach (DataSetWriterDataType dataSetWriter in writerGroupConfiguration.DataSetWriters)
{
//check if dataSetWriter enabled
if (dataSetWriter.Enabled)
{
DataSet dataSet = Application.DataCollector.CollectData(dataSetWriter.DataSetName);
if (dataSet != null)
{
UadpDataSetWriterMessageDataType dataSetMessageSettings =
ExtensionObject.ToEncodeable(dataSetWriter.MessageSettings) as
UadpDataSetWriterMessageDataType;
// check MessageSettings to see how to encode DataSet
if (dataSetMessageSettings != null)
{
UadpDataSetMessage uadpDataSetMessage = new UadpDataSetMessage(dataSet);
uadpDataSetMessage.DataSetWriterId = dataSetWriter.DataSetWriterId;
uadpDataSetMessage.SetMessageContentMask((UadpDataSetMessageContentMask)dataSetMessageSettings.DataSetMessageContentMask);
uadpDataSetMessage.SetFieldContentMask((DataSetFieldContentMask)dataSetWriter.DataSetFieldContentMask);
uadpDataSetMessage.SequenceNumber = (ushort)(Utils.IncrementIdentifier(ref m_dataSetSequenceNumber) % UInt16.MaxValue);
uadpDataSetMessage.ConfiguredSize = dataSetMessageSettings.ConfiguredSize;
uadpDataSetMessage.DataSetOffset = dataSetMessageSettings.DataSetOffset;
uadpDataSetMessage.TimeStamp = DateTime.UtcNow;
uadpDataSetMessage.Status = (ushort)StatusCodes.Good;
dataSetMessages.Add(uadpDataSetMessage);
}
}
}
}
//cancel send if no dataset message
if (dataSetMessages.Count == 0)
{
return(null);
}
UadpNetworkMessage uadpNetworkMessage = new UadpNetworkMessage(dataSetMessages);
uadpNetworkMessage.SetNetworkMessageContentMask((UadpNetworkMessageContentMask)messageSettings.NetworkMessageContentMask);
uadpNetworkMessage.WriterGroupId = writerGroupConfiguration.WriterGroupId;
// Network message header
uadpNetworkMessage.PublisherId = PubSubConnectionConfiguration.PublisherId.Value;
uadpNetworkMessage.SequenceNumber = (ushort)(Utils.IncrementIdentifier(ref m_sequenceNumber) % UInt16.MaxValue);
// Writer group header
uadpNetworkMessage.GroupVersion = messageSettings.GroupVersion;
uadpNetworkMessage.NetworkMessageNumber = 1; //only one network message per publish
return(uadpNetworkMessage);
}