C# Class GSF.Historian.Exporters.ExporterBase

Base class for an exporter of real-time time-series data.

Inheritance: IExporter

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Public Methods

Method	Description
DatasetTemplate ( string dataTableName ) : DataSet	Returns a template DataSet that can be used for storing time-series data in a tabular format. The returned DataSet consists of two DataTables with the following structure: Table 1 is to be used for storing time-series data. Column Name Column Description Instance Historian instance providing the time-series data. ID IDataPoint.HistorianID of the time-series data. Time IDataPoint.Time of the time-series data. Value IDataPoint.Value of the time-series data. Quality IDataPoint.Quality of the time-series data. Table 2 is to be used for providing information about Table 1. Column Name Column Description RunTime DateTime (in UTC) when the data in Table 1 was populated. RecordCount Number of time-series data points in Table 1. RefreshSchedule Interval (in seconds) at which the data in Table 1 is to be refreshed.
Dispose ( ) : void	Releases all the resources used by the exporter.
Equals ( object obj ) : bool	Determines whether the current exporter object is equal to obj.
FindExport ( string exportName ) : Export	Returns the Export for the specified exportName from the Exports.
FindListener ( string listenerName ) : DataListener	Returns the DataListener for the specified listenerName from the Listeners.
GetHashCode ( ) : int	Returns the hash code for the current exporter object.
ProcessExport ( string exportName ) : void	Processes Export with the specified exportName.

Protected Methods

Method	Description
Dispose ( bool disposing ) : void	Releases the unmanaged resources used by the exporter and optionally releases the managed resources.
ExporterBase ( string name ) : System	Initializes a new instance of the exporter.
GetExportData ( Export export ) : IList>.Dictionary	Returns the current time-series data for the specified export organized by listener.
GetExportDataAsDataset ( Export export, string dataTableName ) : DataSet	Returns the current time-series data for the specified export in a DataSet.
OnExportProcessException ( Export export, Exception exception ) : void	Raises the ExportProcessException event.
OnExportProcessed ( Export export ) : void	Raises the ExportProcessed event.
OnStatusUpdate ( string status ) : void	Raises the StatusUpdate event.
ProcessExport ( Export export ) : void	When overridden in a derived class, processes the export using the current DataListener.Data.
ProcessRealTimeData ( object sender, EventArgs e ) : void	Handles the DataListener.DataExtracted event for all the Listeners.
ProcessRealTimeExport ( Export export, DataListener listener, IList data ) : void	When overridden in a derived class, processes the export using the real-time data.

Private Methods

Method	Description
ExportTimer_Elapsed ( object sender, System.Timers.ElapsedEventArgs e ) : void
Exports_CollectionChanged ( object sender, NotifyCollectionChangedEventArgs e ) : void
Listeners_CollectionChanged ( object sender, NotifyCollectionChangedEventArgs e ) : void
ProcessExports ( Export items ) : void	Processes non-real-time exports.
ProcessRealTimeExports ( RealTimeData items ) : void	Processes real-time exports.

Method Details

DatasetTemplate() public static method

Returns a template DataSet that can be used for storing time-series data in a tabular format.

The returned DataSet consists of two DataTables with the following structure:

Table 1 is to be used for storing time-series data. Column Name Column Description Instance Historian instance providing the time-series data. ID IDataPoint.HistorianID of the time-series data. Time IDataPoint.Time of the time-series data. Value IDataPoint.Value of the time-series data. Quality IDataPoint.Quality of the time-series data. Table 2 is to be used for providing information about Table 1. Column Name Column Description RunTime DateTime (in UTC) when the data in Table 1 was populated. RecordCount Number of time-series data points in Table 1. RefreshSchedule Interval (in seconds) at which the data in Table 1 is to be refreshed.

public static DatasetTemplate ( string dataTableName ) : DataSet
dataTableName	string	Name of the that will be used for storing the time-series data.
return	System.Data.DataSet

Dispose() public method

Releases all the resources used by the exporter.

public Dispose ( ) : void
return	void

Dispose() protected method

Releases the unmanaged resources used by the exporter and optionally releases the managed resources.

protected Dispose ( bool disposing ) : void
disposing	bool	true to release both managed and unmanaged resources; false to release only unmanaged resources.
return	void

Equals() public method

Determines whether the current exporter object is equal to obj.

public Equals ( object obj ) : bool
obj	object	Object against which the current exporter object is to be compared for equality.
return	bool

ExporterBase() protected method

Initializes a new instance of the exporter.

protected ExporterBase ( string name ) : System
name	string	Name of the exporter.
return	System

FindExport() public method

Returns the Export for the specified exportName from the Exports.

public FindExport ( string exportName ) : Export
exportName	string	of the to be retrieved.
return	Export

FindListener() public method

Returns the DataListener for the specified listenerName from the Listeners.

public FindListener ( string listenerName ) : DataListener
listenerName	string	of the to be retrieved.
return	DataListener

GetExportData() protected method

Returns the current time-series data for the specified export organized by listener.

protected GetExportData ( Export export ) : IList>.Dictionary
export	Export	whose current time-series data is to be returned.
return	IList>.Dictionary

GetExportDataAsDataset() protected method

Returns the current time-series data for the specified export in a DataSet.

protected GetExportDataAsDataset ( Export export, string dataTableName ) : DataSet
export	Export	whose current time-series data is to be returned.
dataTableName	string	Name of the containing the time-series data.
return	System.Data.DataSet

GetHashCode() public method

Returns the hash code for the current exporter object.

public GetHashCode ( ) : int
return	int

OnExportProcessException() protected method

Raises the ExportProcessException event.

protected OnExportProcessException ( Export export, Exception exception ) : void
export	Export	to send to event.
exception	System.Exception	to send to event.
return	void

OnExportProcessed() protected method

Raises the ExportProcessed event.

protected OnExportProcessed ( Export export ) : void
export	Export	to send to event.
return	void

OnStatusUpdate() protected method

Raises the StatusUpdate event.

protected OnStatusUpdate ( string status ) : void
status	string	Status update message to send to event.
return	void

ProcessExport() protected abstract method

When overridden in a derived class, processes the export using the current DataListener.Data.

protected abstract ProcessExport ( Export export ) : void
export	Export	to be processed.
return	void

ProcessExport() public method

Processes Export with the specified exportName.

does not exist for the specified .

public ProcessExport ( string exportName ) : void
exportName	string	of the to be processed.
return	void

ProcessRealTimeData() protected method

Handles the DataListener.DataExtracted event for all the Listeners.

protected ProcessRealTimeData ( object sender, EventArgs e ) : void
sender	object	object that raised the event.
e	EventArgs	object where is the collection of real-time time-sereis data received.
return	void

ProcessRealTimeExport() protected abstract method

When overridden in a derived class, processes the export using the real-time data.

protected abstract ProcessRealTimeExport ( Export export, DataListener listener, IList data ) : void
export	Export	to be processed.
listener	DataListener	that provided the .
data	IList	Real-time time-series data received by the .
return	void