private static ApplicationId createApplicationId(HttpRequest request, TenantName tenant) {
        return new ApplicationId.Builder()
               .tenant(tenant)
               .applicationName(getPropertyWithDefault(request, APPLICATION_NAME_PARAM_NAME, "default"))
               .instanceName(getPropertyWithDefault(request, INSTANCE_PARAM_NAME, "default"))
               .build();
    }
Parameters for preparing an application. Immutable.

@author Ulf Lilleengen
configserver/src/main/java/com/yahoo/vespa/config/server/session/PrepareParams.java