Sitecore.Analytics.Automation - Does not exist in Sitecore 10.2

Question

In Sitecore 8.2 there is a dll named Sitecore.Analytics.Automation and it contains the below properties:

public class AutomationRuleContext : RuleContext
{
    public AutomationRuleContext();

    public AutomationStateContext ContactState { get; set; }
    public bool IsBackgroundUpdater { get; set; }
    public string PageEventName { get; set; }
    public PageEventItem PageEvent { get; set; }
    public Item StateItem { get; set; }
    public CurrentInteraction Visit { get; set; }
    public Contact Contact { get; set; }
}

and implementation is used as below:

public class MyClass<T> : WhenCondition<T> where T : AutomationRuleContext

Existing project Sitecore 8.2 is using
public AutomationStateContext ContactState { get; set; }
properties in the Execute method.

The Execute method is in the WhenCondition class as below:

public abstract class WhenCondition<T> : RuleCondition<T> where T : RuleContext
{
    protected WhenCondition();

    public override void Evaluate(T ruleContext, RuleStack stack);
    protected abstract bool Execute(T ruleContext);
}

does anyone have an idea about AutomationRuleContext and WhenCondition, where it's moved in Sitecore 10.2, and how can we use them in the Sitecore 10.2 project while migration?

Answer 1

Sitecore Marketing Automation has been completely rewritten since 8.2.

In Sitecore 9+ you need to write conditions which implement ICondition and IContactSearchQueryFactory interfaces

E.g.

public class PreferredCinemaMatches : ICondition, IContactSearchQueryFactory
{
    public string PreferredCinema { get; set; }

   // TIP: There are other operation types in theSitecore.XConnect.Segmentation.Predicates namespace
    public StringOperationType Comparison { get; set; }

    // Evaluates condition for single contact
    public bool Evaluate(IRuleExecutionContext context)
    {
        var contact = context.Fact<Contact>();

        return Comparison.Evaluate(contact.GetFacet<CinemaDetails>(CinemaDetails.DefaultFacetKey)?.PreferredCinema, PreferredCinema)
            && contact.Interactions.Any();
    }

    // Evaluates contact in a search context
    // IMPORTANT: Use InteractionsCache() facet rather than contact.Interactions as some search providers do not provide joins.
    public Expression<Func<Contact, bool>> CreateContactSearchQuery(IContactSearchQueryContext context)
    {
        return contact => Comparison.Evaluate(contact.GetFacet<CinemaDetails>(CinemaDetails.DefaultFacetKey).PreferredCinema, PreferredCinema)
        && contact.InteractionsCache().InteractionCaches.Any();
    }
}

More information in Sitecore docs here: https://doc.sitecore.com/xp/en/developers/101/sitecore-experience-platform/create-a-custom-condition-and-segmentation-query.html