Merge pull request #27 from optimizely/yasir/get-set-forcedvariation

feat: getForcedVariation and setForcedVariation API's implemented.

Author: msohailhussain

android/src/main/java/com/optimizely/optimizely_flutter_sdk/OptimizelyFlutterClient.java

@@ -54,6 +54,14 @@ public void onMethodCall(@NonNull MethodCall call, @NonNull Result result) {
         getVariation(argumentsParser, result);
         break;
       }
+      case APIs.GET_FORCED_VARIATION: {
+        getForcedVariation(argumentsParser, result);
+        break;
+      }
+      case APIs.SET_FORCED_VARIATION: {
+        setForcedVariation(argumentsParser, result);
+        break;
+      }
       case APIs.ADD_NOTIFICATION_LISTENER: {
         addNotificationListener(argumentsParser, result);
         break;

android/src/main/java/com/optimizely/optimizely_flutter_sdk/OptimizelyFlutterSdkPlugin.java

@@ -20,6 +20,8 @@ public static class APIs {
         public static final String CLOSE = "close";
         public static final String ACTIVATE = "activate";
         public static final String GET_VARIATION = "getVariation";
+        public static final String GET_FORCED_VARIATION = "getForcedVariation";
+        public static final String SET_FORCED_VARIATION = "setForcedVariation";
         public static final String INITIALIZE = "initialize";
         public static final String GET_OPTIMIZELY_CONFIG = "getOptimizelyConfig";
         public static final String CREATE_USER_CONTEXT = "createUserContext";
@@ -70,24 +72,11 @@ public static class RequestParameterKey {
 
     public static class ErrorMessage {
         public static final String INVALID_PARAMS = "Invalid parameters provided.";
+        public static final String INVALID_OPTIMIZELY_CLIENT = "Optimizely client is invalid.";
         public static final String OPTIMIZELY_CONFIG_NOT_FOUND = "No optimizely config found.";
         public static final String OPTIMIZELY_CLIENT_NOT_FOUND = "Optimizely client not found.";
         public static final String USER_CONTEXT_NOT_FOUND = "User context not found.";
-    }
-
-    public static class SuccessMessage {
-        public static final String INSTANCE_CREATED = "Optimizely instance created successfully.";
-        public static final String OPTIMIZELY_CONFIG_FOUND = "Optimizely config found.";
-        public static final String OPTIMIZELY_CLIENT_CLOSED = "Optimizely client closed successfully.";
-        public static final String USER_CONTEXT_CREATED = "User context created successfully.";
-        public static final String LISTENER_REMOVED = "Listener removed successfully.";
-        public static final String DECIDE_CALLED = "Decide called successfully.";
-        public static final String LISTENER_ADDED = "Listener added successfully.";
-        public static final String ATTRIBUTES_ADDED = "Attributes added successfully.";
-        public static final String EVENT_TRACKED = "Event Tracked successfully.";
-        public static final String FORCED_DECISION_SET = "Forced decision set successfully.";
-        public static final String REMOVED_FORCED_DECISION = "Forced decision removed successfully.";
-        public static final String REMOVED_ALL_FORCED_DECISION = "All Forced decisions removed successfully.";
+        public static final String USER_CONTEXT_NOT_CREATED = "User context not created.";
     }
 
     public static class DecisionListenerKeys {

android/src/main/java/com/optimizely/optimizely_flutter_sdk/helper_classes/Constants.java

@@ -21,6 +21,8 @@ struct API {
     static let getOptimizelyConfig = "getOptimizelyConfig"
     static let activate = "activate"
     static let getVariation = "getVariation"
+    static let getForcedVariation = "getForcedVariation"
+    static let setForcedVariation = "setForcedVariation"
     static let createUserContext = "createUserContext"
     static let getUserId = "getUserId"
     static let getAttributes = "getAttributes"
@@ -94,20 +96,6 @@ struct ErrorMessage {
     static let userContextNotFound = "User context not found."
 }
 
-struct SuccessMessage {
-    static let instanceCreated = "Optimizely instance created successfully."
-    static let optimizelyConfigFound = "Optimizely config found."
-    static let optimizelyClientClosed = "Optimizely client closed successfully."
-    static let userContextCreated = "User context created successfully."
-    static let attributesAdded = "Attributes added successfully."
-    static let listenerAdded = "Listener added successfully."
-    static let listenerRemoved = "Listener removed successfully."
-    static let decideCalled = "Decide called successfully."
-    static let forcedDecisionSet = "Forced decision set successfully."
-    static let forcedDecisionRemoved = "Forced decision removed successfully."
-    static let allForcedDecisionsRemoved = "All Forced decisions removed successfully."
-}
-
 //Sohail: There is one issue, can we make sure the types remain same, probably we will need to write unit test separately for type.
 struct TypeValue {
     static let string = "string"