private LinkRepresentation CreatePromptLink(HttpRequestMessage req, IObjectFacade objectFacade, FieldFacadeAdapter parameter) {
var opts = new List<OptionalProperty>();
if (parameter.IsAutoCompleteEnabled) {
var arguments = new OptionalProperty(JsonPropertyNames.Arguments, MapRepresentation.Create(new OptionalProperty(JsonPropertyNames.XRoSearchTerm, MapRepresentation.Create(new OptionalProperty(JsonPropertyNames.Value, null, typeof (object))))));
var extensions = new OptionalProperty(JsonPropertyNames.Extensions, MapRepresentation.Create(new OptionalProperty(JsonPropertyNames.MinLength, parameter.AutoCompleteMinLength)));
opts.Add(arguments);
opts.Add(extensions);
}
else {
Tuple<string, ITypeFacade>[] parms = parameter.GetChoicesParameters();
OptionalProperty[] args = parms.Select(tuple => RestUtils.CreateArgumentProperty(OidStrategy, req, tuple, Flags)).ToArray();
var arguments = new OptionalProperty(JsonPropertyNames.Arguments, MapRepresentation.Create(args));
opts.Add(arguments);
}
return LinkRepresentation.Create(OidStrategy, new PromptRelType(parameter.GetHelper(OidStrategy, req, objectFacade)), Flags, opts.ToArray());
}