added MVMCoreActionHandlerProtocol

added Extension for ModelRegistry to get the actionHandler
added method to be called by Legacy code to check to see if there is an action handler

Signed-off-by: Matt Bruce <matt.bruce@verizon.com>

MVMCore/MVMCore/ActionHandling/MVMCoreActionHandler+Extension.swift

@@ -8,6 +8,22 @@
 
 import Foundation
 
+public protocol MVMCoreActionHandlerProtocol: ModelHandlerProtocol {
+    init()
+    func handleAction(_ model: ActionModelProtocol, additionalData: [AnyHashable : Any]?, delegateObject: DelegateObject?)
+}
+
+extension ModelRegistry {
+    public static func getActionHandler(_ model: ActionModelProtocol) throws -> MVMCoreActionHandlerProtocol {
+        do {
+            let type = try ModelRegistry.getHandler(model) as! MVMCoreActionHandlerProtocol.Type
+            return type.init()
+        } catch {
+            throw ModelRegistry.Error.other(message: error.localizedDescription)
+        }
+    }
+}
+
 public extension MVMCoreActionHandler {
     
     /// Converts the action to json for old action handler to handle.
@@ -26,6 +42,41 @@ public extension MVMCoreActionHandler {
         }
     }
     
+    @objc func hasActionHandler(actionType: String?, actionInformation: [String: Any]?, additionalData: [AnyHashable: Any]?, delegateObject: DelegateObject?) -> Bool {
+        //ensure there is a Serialized version of the Action
+        guard let actionType = actionType, let actionInformation = actionInformation else { return false }
+        
+        do {
+            //get the actionModelType
+            guard let actionModelType = ModelRegistry.getType(for: actionType, with: ActionModelProtocol.self) else {
+                throw ModelRegistry.Error.decoderErrorModelNotMapped()
+            }
+            
+            //deserialize the actionModel for the actionType found
+            guard let actionModel = try actionModelType.decode(jsonDict: actionInformation) as? ActionModelProtocol else {
+                throw ModelRegistry.Error.decoderOther(message: "Could not decode to ActionModelProtocol")
+            }
+                        
+            //get the action Handler for the actionModel created
+            let actionHandler = try ModelRegistry.getActionHandler(actionModel)
+            
+            //call the handleAction of the handler
+            actionHandler.handleAction(actionModel, additionalData: additionalData, delegateObject: delegateObject)
+            
+            //complete
+            return true
+            
+        } catch {
+            //log the error
+            if let errorObject = MVMCoreErrorObject.createErrorObject(for: error, location: "") {
+                MVMCoreActionHandler.shared()?.defaultHandleActionError(errorObject, additionalData: additionalData)
+            }
+            
+            //incomplete
+            return false
+        }
+    }
+    
     /// Start action on current thread.
     func syncHandleAction(with model: ActionModelProtocol, additionalData: [AnyHashable: Any]?, delegateObject: DelegateObject?) {
         guard let json = convertActionToJSON(model, delegateObject: delegateObject) else { return }