/// <summary>
/// Validates that a string is either a valid absolute URI, or (if it begins with '#') it is a valid URI fragment.
/// </summary>
/// <param name="metadataDocumentUri">The metadata document uri.</param>
/// <param name="propertyName">The property name to validate.</param>
internal static void ValidateMetadataReferencePropertyName(Uri metadataDocumentUri, string propertyName)
{
Debug.Assert(metadataDocumentUri != null, "metadataDocumentUri != null");
Debug.Assert(metadataDocumentUri.IsAbsoluteUri, "metadataDocumentUri.IsAbsoluteUri");
Debug.Assert(!String.IsNullOrEmpty(propertyName), "!string.IsNullOrEmpty(propertyName)");
string uriStringToValidate = propertyName;
// If it starts with a '#', validate that the rest of the string is a valid Uri fragment.
if (propertyName[0] == ODataConstants.ContextUriFragmentIndicator)
{
// In order to use System.Uri to validate a fragement, we first prepend the metadataDocumentUri
// so that it becomes an absolute URI which we can validate with Uri.IsWellFormedUriString.
uriStringToValidate = UriUtils.UriToString(metadataDocumentUri) + UriUtils.EnsureEscapedFragment(propertyName);
}
if (!Uri.IsWellFormedUriString(uriStringToValidate, UriKind.Absolute) ||
!ODataJsonLightUtils.IsMetadataReferenceProperty(propertyName) ||
propertyName[propertyName.Length - 1] == ODataConstants.ContextUriFragmentIndicator)
{
throw new ODataException(Strings.ValidationUtils_InvalidMetadataReferenceProperty(propertyName));
}
if (IsOpenMetadataReferencePropertyName(metadataDocumentUri, propertyName))
{
throw new ODataException(Strings.ODataJsonLightValidationUtils_OpenMetadataReferencePropertyNotSupported(propertyName, UriUtils.UriToString(metadataDocumentUri)));
}
}
/// <summary>
/// Converts the metadata reference property name to an absolute Uri.
/// </summary>
/// <param name="metadataDocumentUri">The metadata document uri.</param>
/// <param name="propertyName">The metadata reference property name.</param>
/// <returns>The absolute Uri for the metadata reference property name.</returns>
internal static Uri GetAbsoluteUriFromMetadataReferencePropertyName(Uri metadataDocumentUri, string propertyName)
{
Debug.Assert(metadataDocumentUri != null, "metadataDocumentUri != null");
Debug.Assert(!String.IsNullOrEmpty(propertyName), "!string.IsNullOrEmpty(propertyName)");
if (propertyName[0] == ODataConstants.ContextUriFragmentIndicator)
{
propertyName = UriUtils.EnsureEscapedFragment(propertyName);
return(new Uri(metadataDocumentUri, propertyName));
}
Debug.Assert(Uri.IsWellFormedUriString(propertyName, UriKind.Absolute), "The propertyName should be an absolute Uri.");
return(new Uri(propertyName, UriKind.Absolute));
}