/// <summary>
/// Merge the include metadata with current.
/// </summary>
/// <returns></returns>
private string getAndMergeExternalSchema()
{
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(this.MetadataDocument);
XmlNode dataServices = xmlDoc.SelectSingleNode("/*[local-name()='Edmx']/*[local-name()='DataServices']");
string xpath = "/*[local-name()='Edmx']/*[local-name()='Reference']";
XmlNodeList referenceNodeList = xmlDoc.SelectNodes(xpath);
foreach (XmlNode reference in referenceNodeList)
{
if (reference.Attributes["Uri"] != null)
{
try
{
Uri referenceUri = new Uri(reference.Attributes["Uri"].Value, UriKind.RelativeOrAbsolute);
var payload = XElement.Parse(this.MetadataDocument);
string baseUriString = payload.GetAttributeValue("xml:base", ODataNamespaceManager.Instance);
if (!string.IsNullOrEmpty(baseUriString) && Uri.IsWellFormedUriString(reference.Attributes["Uri"].Value, UriKind.Relative))
{
Uri referenceUriRelative = new Uri(reference.Attributes["Uri"].Value, UriKind.Relative);
Uri baseUri = new Uri(baseUriString, UriKind.Absolute);
referenceUri = new Uri(baseUri, referenceUriRelative);
}
Response response = WebHelper.Get(referenceUri, string.Empty, RuleEngineSetting.Instance().DefaultMaximumPayloadSize, this.RequestHeaders);
if (response != null && response.StatusCode.Value == System.Net.HttpStatusCode.OK && !string.IsNullOrEmpty(response.ResponsePayload))
{
XmlDocument referenceDoc = new XmlDocument();
referenceDoc.LoadXml(response.ResponsePayload);
XmlNodeList referencedSchemas = referenceDoc.SelectNodes("/*[local-name()='Edmx']/*[local-name()='DataServices']/*[local-name()='Schema']");
merge(dataServices, referencedSchemas, reference);
}
}
// if one reference doc failed, we should continue merging others.
catch (ArgumentException)
{ continue; }
catch (UriFormatException)
{ continue; }
catch (XmlException)
{ continue; }
catch (OversizedPayloadException)
{ continue; }
}
}
return(xmlDoc.OuterXml);
}