/// <summary>
/// Verify the code rule
/// </summary>
/// <param name="context">Service context</param>
/// <param name="info">out paramater to return violation information when rule fail</param>
/// <returns>true if rule passes; false otherwise</returns>
public override bool?Verify(ServiceContext context, out ExtensionRuleViolationInfo info)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
bool?passed = null;
info = null;
var segments = ResourcePathHelper.GetPathSegments(context).ToArray();
var edmxHelper = new EdmxHelper(XElement.Parse(context.MetadataDocument));
UriType uriType;
var target = edmxHelper.GetTargetType(segments, out uriType);
if (uriType == UriType.URI4 || uriType == UriType.URI5)
{
passed = false;
string targetType = ((EdmProperty)target).TypeUsage.EdmType.FullName;
string property = segments.LastOrDefault(s => !s.StartsWith("$"));
JObject jo = JObject.Parse(context.ResponsePayload);
var inner = jo.ReachInnerToken();
if (inner.Type == JTokenType.Object)
{
JObject innerObj = (JObject)inner;
if (innerObj.Properties() != null && innerObj.Properties().Count() == 1)
{
var value = innerObj.Properties().First().Value;
string valueLiteral = value.ToString();
IEdmType type = EdmTypeManager.GetEdmType(targetType);
bool isValidJsonData = type.IsGoodInJsonWith(valueLiteral);
if (isValidJsonData)
{
passed = true;
}
else
{
// target type may allow null
//TODO: allow null only when the target type is nullable
passed = valueLiteral.Equals("null", StringComparison.Ordinal);
}
}
}
}
if (passed.HasValue && !passed.Value)
{
info = new ExtensionRuleViolationInfo(this.ErrorMessage, context.Destination, context.ResponsePayload, -1);
}
return(passed);
}
