/// <summary>
/// Raise MetaDataReceived event
/// </summary>
/// <param name="e"></param>
internal void RaiseMetaDataReceivedEvent(SubscribedDataEventArgs e)
{
try
{
if (MetaDataReceived != null)
{
MetaDataReceived(this, e);
}
}
catch (Exception ex)
{
Utils.Trace(ex, "UaPubSubApplication.RaiseMetaDataReceivedEvent");
}
}
/// <summary>
/// Raises the <see cref="UaPubSubApplication.DataReceived"/> event.
/// </summary>
/// <param name="networkMessage">The network message that was received.</param>
/// <param name="source">The source of the received event.</param>
protected void RaiseNetworkMessageDataReceivedEvent(UaNetworkMessage networkMessage, string source)
{
if (networkMessage.DataSetMessages != null && networkMessage.DataSetMessages.Count > 0)
{
SubscribedDataEventArgs subscribedDataEventArgs = new SubscribedDataEventArgs() {
NetworkMessage = networkMessage,
Source = source
};
//trigger notification for received subscribed data set
Application.RaiseDataReceivedEvent(subscribedDataEventArgs);
Utils.Trace("Connection '{0}' - RaiseNetworkMessageDataReceivedEvent() from source={0}, with {1} DataSets",
source, subscribedDataEventArgs.NetworkMessage.DataSetMessages.Count);
}
else
{
Utils.Trace("Connection '{0}' - RaiseNetworkMessageDataReceivedEvent() message from source={0} cannot be decoded.", source);
}
}
/// <summary>
/// Processes the decoded <see cref="UaNetworkMessage"/> and
/// raises the <see cref="UaPubSubApplication.DataReceived"/> or <see cref="UaPubSubApplication.MetaDataReceived"/> event.
/// </summary>
/// <param name="networkMessage">The network message that was received.</param>
/// <param name="source">The source of the received event.</param>
protected void ProcessDecodedNetworkMessage(UaNetworkMessage networkMessage, string source)
{
if (networkMessage.IsMetaDataMessage)
{
// update configuration of the corresponding reader objects found in this connection configuration
List <DataSetReaderDataType> allReaders = GetAllDataSetReaders();
foreach (DataSetReaderDataType reader in allReaders)
{
bool raiseChangedEvent = false;
lock (m_lock)
{
// check if reader's MetaData shall be updated
if (reader.DataSetWriterId != 0 &&
reader.DataSetWriterId == networkMessage.DataSetWriterId &&
(reader.DataSetMetaData == null ||
!Utils.IsEqual(reader.DataSetMetaData.ConfigurationVersion, networkMessage.DataSetMetaData.ConfigurationVersion)))
{
raiseChangedEvent = true;
}
}
if (raiseChangedEvent)
{
// raise event
ConfigurationUpdatingEventArgs metaDataUpdatedEventArgs = new ConfigurationUpdatingEventArgs()
{
ChangedProperty = ConfigurationProperty.DataSetMetaData,
Parent = reader,
NewValue = networkMessage.DataSetMetaData,
Cancel = false
};
// raise the ConfigurationUpdating event and see if configuration shall be changed
m_uaPubSubApplication.RaiseConfigurationUpdatingEvent(metaDataUpdatedEventArgs);
// check to see if the event handler canceled the save of new MetaData
if (!metaDataUpdatedEventArgs.Cancel)
{
Utils.Trace("Connection '{0}' - The MetaData is updated for DataSetReader '{1}' with DataSetWriterId={2}",
source, reader.Name, networkMessage.DataSetWriterId);
lock (m_lock)
{
reader.DataSetMetaData = networkMessage.DataSetMetaData;
}
}
}
}
SubscribedDataEventArgs subscribedDataEventArgs = new SubscribedDataEventArgs()
{
NetworkMessage = networkMessage,
Source = source
};
// trigger notification for received DataSet MetaData
Application.RaiseMetaDataReceivedEvent(subscribedDataEventArgs);
Utils.Trace(
"Connection '{0}' - RaiseMetaDataReceivedEvent() from source={0}",
source,
subscribedDataEventArgs.NetworkMessage.DataSetMessages.Count);
}
else if (networkMessage.DataSetMessages != null && networkMessage.DataSetMessages.Count > 0)
{
SubscribedDataEventArgs subscribedDataEventArgs = new SubscribedDataEventArgs()
{
NetworkMessage = networkMessage,
Source = source
};
//trigger notification for received subscribed DataSet
Application.RaiseDataReceivedEvent(subscribedDataEventArgs);
Utils.Trace(
"Connection '{0}' - RaiseNetworkMessageDataReceivedEvent() from source={0}, with {1} DataSets",
source,
subscribedDataEventArgs.NetworkMessage.DataSetMessages.Count);
}
else
{
Utils.Trace("Connection '{0}' - RaiseNetworkMessageDataReceivedEvent() message from source={0} cannot be decoded.", source);
}
}