Re: [milo-dev] opc/ua extension update

[Shigeru Ishida <ishida_shigeru@xxxxxxxxxxx>]

For example, it looks like the following.

If you specify null as the third argument of the MonitoringParameters constructor,
it will be treated as the default StatusValue, If StatusValueTimestamp is specified,
even when updated with the same value, data reflecting the fact that it was updated
(same value, different sourceTimestamp and serverTimestamp) can be obtained with PublishResponse.

---

	private static final ExtensionObject DataChangeFilter_Status = ExtensionObject.encode(
			new DataChangeFilter(
					DataChangeTrigger.Status,
					Unsigned.uint(DeadbandType.None.getValue()),
					0.0
					));
	private static final ExtensionObject DataChangeFilter_StatusValue = ExtensionObject.encode(
			new DataChangeFilter(
					DataChangeTrigger.StatusValue,
					Unsigned.uint(DeadbandType.None.getValue()),
					0.0
					));
	private static final ExtensionObject DataChangeFilter_StatusValueTimestamp = ExtensionObject.encode(
			new DataChangeFilter(
					DataChangeTrigger.StatusValueTimestamp,
					Unsigned.uint(DeadbandType.None.getValue()),
					0.0
					));
	...
	...
			MonitoringParameters parameters = new MonitoringParameters(
					Unsigned.uint(clientHandles.getAndIncrement()),
					(double)samplingInterval,
				-->	DataChangeFilter_StatusValueTimestamp,
					Unsigned.uint(queueSize),
					true
					);

<thomas@xxxxxxx> wrote, Fri, 24 Nov 2017 14:13:13 +0100

> Thanks Kevin,
> 
> yes cool,
> 
> regarding  Shigeru-sans request for DataChangeTrigger (Status / 
> StatusValue / StatusValueTimestamp)):
> 
>   * I guess this is done via the MonitoringParameters filter ??
>   * Do you have an example ??
>   * What options are there ?
> 
> thanks,
> 
> thomas
> 
> 
> 
> On 24.11.2017 14:04, Kevin Herron wrote:
> > If you can hold out a little longer for the release of 0.2.0 you'll 
> > gain support for reading custom Structure data types defined in the 
> > server :)
> >
> > On Fri, Nov 24, 2017 at 12:42 AM, Thomas Haber <thomas@xxxxxxx 
> > <mailto:thomas@xxxxxxx>> wrote:
> >
> >     Hi all,
> >
> >     i'm planning to update the impulse opc/ua extension based on Milo
> >     : https://marketplace.eclipse.org/content/impulse-opcua-extension
> >     <https://marketplace.eclipse.org/content/impulse-opcua-extension>
> >
> >     If you already used/tested the extension , PLEASE give your feedback:
> >
> >     Â Â Â  * What dont you like ?
> >     Â Â Â  * Where could you see improvements ?
> >     Â Â Â  * What problems did you have ?
> >     Â Â Â  * Which ideas do you have ?
> >
> >     Any feedback is greatly welcome. I strongly depend on your inputs.
> >
> >     thanks,
> >     thomas
> >
> >
> >
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