Custom Tag Historian Extension Point Form Not Found

Module Development
1

Hello, I have been working on a custom tag historian using the new historian interfaces. My module was working on 8.3.0, but I am seeing an issue when running against 8.3.1. Whenever I select my custom historian type in the UI, the default values are not shown. Then if I create an instance and try to edit it I get the following screen.

image
image668×444 8.2 KB

Interestingly, If I remove my overridden defaultSettings method then the form appears again.

@Override
public Optional<CustomHistorianSettings> defaultSettings() {
return Optional.of(CustomHistorianSettings.DEFAULT);
}

image
image657×487 13.8 KB

I have tried using the DefaultValue annotation in my implementation of HistorianSettings instead of the getSettings method to get around the issue but the UI still does not show the default values for my custom settings. Here is my implementation of getWebUiComponent in HistorianExtensionPoint

@Override
public Optional<WebUiComponent> getWebUiComponent(ComponentType type) {
return Optional.of(
new ExtensionPointResourceForm(
HistorianExtensionPoint.getResourceType(),
"Historian",
typeId(),
SchemaUtil.fromType(HistorianProvider.class),
SchemaUtil.fromType(CustomHistorianSettings.class),
Collections.emptySet()
)
);
}

I have confirmed that typeId matches what is being passed into HistorianExtensionPoint

public CustomHistorianExtensionPoint(@NotNull String typeId, @NotNull String nameKey, @NotNull String descriptionKey) {
super(typeId, nameKey, descriptionKey);
}

2

I would guess that your default settings are throwing an exception, and that is hidden behind an extension point infrastructure DEBUG logger. If you cannot find the right one to set to DEBUG, you may want to ask IA support for some help.

3

Thanks for the reply. No luck so far with the debug logging. To try and test this theory I have simplified the settings to this implementation below where I only provide one setting. However I am still seeing the same behavior

public record CustomHistorianSettings(
        @FormCategory("Test Settings")
        @FormField(FormFieldType.TEXT)
        String test) implements HistorianSettings {

    public static final CustomHistorianSettings DEFAULT = new CustomHistorianSettings("My default");
}
4

I’ve run into this issue as well and haven’t been able to solve it.