Charles Vance Certified Archestra Developer and Freelance Programmer

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Using Alarm Client Filter Favorites

Published August 4, 2019 in Intermediate , Uncategorized - 0 Comments

Using Alarm Client Filters

One of my subscribers asked me to take a look at an issue he was having with the Alarm Client object in Archestra. He wanted to have multiple queries for narrowing down the alarms visible in the alarm history based on the area structure in the alarm model view.

He mentioned that he had read the Alarm Client guide and believed he was following it correctly yet he was unable to filter that alarms like he wanted to.

I know the alarm guide uses examples with the radio button component to switch queries at run time, but please allow me to show you another method which can be just as effective and I believe a bit easier to implement.

The method I’m going to show you is the favorite alarm query established at design time. In this example I configure r area filters and one “All” areas filter triggered with a radio button and data change script.

The key element in this strategy is to pre-configure the queries you want use for narrowing the alarm summary/history. In this case I created 4 area queries matching the areas defined in the model view each one representing a different generator set and another named “All” to show all alarms. The figure below shows the Query Filter dialog.

Once the alarm client query filters are configured you're ready to configure the radio button selector and associated scripting. The figure below shows the configuration for the radio button group. Create a string property on the host symbol named “FavoriteString” which becomes the reference for setting the filter favorite. As each radio button is selected the corresponding filter name is loaded into the “FavoriteString” property which in turn triggers a data change script.

The Data Change script executes the AlarmClient.Favorite method which is the secret sauce to this strategy for alarm filtering. As the filter name is presented the alarm client switches to use the indicated pre-configured alarm filter delivering the desired result.

Another script is placed in the show graphic area to set defaults when the alarm client first presents to the user. The next two figures below show the scripting configuration.

Once these steps have been completed the alarm client is ready for connection to the A2ALMDB.

For a more detailed look at how this method of alarm filtering is implemented you can head over to my you tube channel and watch this video for a complete demonstration.

If you are interested in learning more I offer a free online Archestra training course here.

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