internal static bool ResolveContentIdReferenceInRequestUrl(HttpRequestMessage request)
{
ContentIdRecord referencedContentIdRecord = GetReferencedContentIdEntity(request);
if (referencedContentIdRecord == null)
{
return(false);
}
// Save the initial Uri (eg http://localhost/odata/$46/Messages ) before the Content-ID references are replaced.
request.SaveInitialChangeSetRequestUri();
string originalUri = request.RequestUri.OriginalString;
string refKey = "$" + referencedContentIdRecord.ContentId;
int ichRef = originalUri.IndexOf(refKey);
Contract.Assert(ichRef >= 0);
// As location headers MUST be absolute URL's, we can ignore everything
// before the $content-id while resolving it.
string updatedUri = referencedContentIdRecord.Location + originalUri.Substring(ichRef + refKey.Length);
request.RequestUri = new Uri(updatedUri);
return(true);
}
public bool BindModel(HttpActionContext actionContext, ModelBindingContext bindingContext)
{
ContentIdRecord contentIdRecord = ContentIdHelper.GetReferencedContentIdEntity(actionContext.Request);
if (contentIdRecord == null)
{
// Value doesn't exist
return(false);
}
if (bindingContext.ModelType.IsAssignableFrom(contentIdRecord.EntityType))
{
bindingContext.Model = contentIdRecord.Entity;
return(true);
}
else
{
string errorMessage = string.Format("Content-ID reference ${0} contains an entity of type {1}, which could not be converted to type {2}.",
contentIdRecord.ContentId,
contentIdRecord.EntityType,
bindingContext.ModelType);
bindingContext.ModelState.AddModelError(bindingContext.ModelName, errorMessage);
return(false);
}
}
public static bool ContentIdReferenceToEntity(this HttpRequestMessage request, string reference, out object referencedEntity)
{
referencedEntity = null;
int contentId;
if (!ContentIdHelper.TryParseContentIdReference(reference, out contentId))
{
return(false);
}
ChangeSetContext changeSetContext = request.GetChangeSetContext();
if (changeSetContext != null)
{
ContentIdRecord contentIdRecord = changeSetContext.GetContentIdRecord(contentId);
if (contentIdRecord != null)
{
referencedEntity = contentIdRecord.Entity;
}
}
return(referencedEntity != null);
}