/// <summary>
/// Creates a new local concentrator.
/// </summary>
public LocalConcentrator(DataSubscriber parent)
{
m_parent = parent;
}
/// <summary>
/// Releases the unmanaged resources used by the <see cref="LocalConcentrator"/> object and optionally releases the managed resources.
/// </summary>
/// <param name="disposing">true to release both managed and unmanaged resources; false to release only unmanaged resources.</param>
protected override void Dispose(bool disposing)
{
if (!m_disposed)
{
try
{
if (disposing)
m_parent = null;
}
finally
{
m_disposed = true; // Prevent duplicate dispose.
base.Dispose(disposing); // Call base class Dispose().
}
}
}
void UnsubscribeData()
{
try
{
if (m_dataSubscriber != null)
{
m_dataSubscriber.Unsubscribe();
StopSubscription();
}
}
catch
{
m_dataSubscriber = null;
}
}
void StopSubscription()
{
if (m_dataSubscriber != null)
{
m_dataSubscriber.StatusMessage -= dataSubscriber_StatusMessage;
m_dataSubscriber.ProcessException -= dataSubscriber_ProcessException;
m_dataSubscriber.ConnectionEstablished -= dataSubscriber_ConnectionEstablished;
m_dataSubscriber.NewMeasurements -= dataSubscriber_NewMeasurements;
m_dataSubscriber.Stop();
m_dataSubscriber.Dispose();
m_dataSubscriber = null;
}
}
void StartSubscription()
{
string server = openPDCManager.Utilities.Common.GetDataPublisherServer();
string port = openPDCManager.Utilities.Common.GetDataPublisherPort();
m_dataSubscriber = new DataSubscriber();
m_dataSubscriber.StatusMessage += dataSubscriber_StatusMessage;
m_dataSubscriber.ProcessException += dataSubscriber_ProcessException;
m_dataSubscriber.ConnectionEstablished += dataSubscriber_ConnectionEstablished;
m_dataSubscriber.NewMeasurements += dataSubscriber_NewMeasurements;
m_dataSubscriber.ConnectionTerminated += dataSubscriber_ConnectionTerminated;
m_dataSubscriber.ConnectionString = "server=" + server + ":" + port;
m_dataSubscriber.Initialize();
m_dataSubscriber.Start();
}
void UnsubscribeDataForChart()
{
try
{
if (m_chartSubscriber != null)
{
//System.Diagnostics.Debug.WriteLine("SUBSCRIPTION: Un-Subscribing Data.");
m_chartSubscriber.Unsubscribe();
StopSubscriptionForChart();
}
}
catch
{
m_chartSubscriber = null;
}
StopChartRefreshTimer();
}
void UnsubscribeDataForTree()
{
try
{
if (m_measurementDataSubscriber != null)
{
m_measurementDataSubscriber.Unsubscribe();
StopSubscriptionForTree();
}
}
catch
{
m_measurementDataSubscriber = null;
}
}