Inject Remote Parameters into the Entitlement Mediator

Inject Remote Parameters into the Entitlement Mediator. Fixes:#3798

Author: DedunuKarunarathne

components/mediation/mediators/entitlement-mediator/org.wso2.micro.integrator.identity.entitlement.mediator/src/main/java/org/wso2/micro/integrator/identity/entitlement/mediator/EntitlementMediator.java

@@ -37,6 +37,7 @@
 import org.apache.synapse.SynapseConstants;
 import org.apache.synapse.SynapseException;
 import org.apache.synapse.SynapseLog;
+import org.apache.synapse.commons.resolvers.ResolverFactory;
 import org.apache.synapse.config.SynapseConfiguration;
 import org.apache.synapse.continuation.ContinuationStackManager;
 import org.apache.synapse.continuation.ReliantContinuationState;
@@ -479,9 +480,9 @@ public void init(SynapseEnvironment synEnv) {
                 callback = new UTEntitlementCallbackHandler();
             }
 
-            String remoteServiceUrlResolved = remoteServiceUrl;
-            String remoteServiceUsernameResolved = remoteServiceUserName;
-            String remoteServicePasswordResolved = remoteServicePassword;
+            String remoteServiceUrlResolved = ResolverFactory.getInstance().getResolver(remoteServiceUrl).resolve();
+            String remoteServiceUsernameResolved = ResolverFactory.getInstance().getResolver(remoteServiceUserName).resolve();
+            String remoteServicePasswordResolved = ResolverFactory.getInstance().getResolver(remoteServicePassword).resolve();
 
             if (remoteServiceUrlKey != null && remoteServiceUrlKey.trim().length() > 0) {
                 remoteServiceUrlResolved = resolveRegistryEntryText(synEnv, remoteServiceUrlKey);