public DirectoryGraph(string tenantId, string accessToken, string dataContractVersion = "0.5", int defaultPageSize = 20)
{
this.dataContractVersion = dataContractVersion;
this.DefaultPageSize = defaultPageSize;
this.connectionUri = new Uri(string.Format(@"https://directory.windows.net/{0}", tenantId));
this.dataService = new DirectoryDataServiceProxy(connectionUri);
this.dataService.IgnoreResourceNotFoundException = true;
this.accessToken = accessToken;
this.dataService.SendingRequest += delegate(object sender1, SendingRequestEventArgs args)
{
((HttpWebRequest)args.Request).Headers.Add(Constants.HeaderNameAuthorization, "Bearer " + this.accessToken);
((HttpWebRequest)args.Request).Headers.Add(Constants.HeaderNameDataContractVersion, dataContractVersion);
};
}
/// <summary>
/// Method to handle binding redirection exception. This exception means that the
/// user's data is located in another data center. This exception's details returns
/// several urls that may work in this case. At least one url is guaranteed to work
/// So we need to get all the URLs and try them
/// </summary>
/// <param name="parsedException">The binding redirection exception we received</param>
/// <param name="operation">The operation to try</param>
private void HandleBindingRedirectionException(ErrorResponseEx parsedException, Action operation)
{
List<string> urls = new List<string>();
// Go thru the error details name\value pair
foreach (ErrorDetail ed in parsedException.Values)
{
// if the name is something like url1, url2 add it to the list of URLs
if (ed.Item.StartsWith("url"))
{
urls.Add(ed.Value);
}
}
// Now try each URL
foreach (string newUrl in urls)
{
// We permanantly change the dataservice to point to the new URL
// as none of the operations will work on the current url
dataService = new DirectoryDataServiceProxy(new Uri(newUrl));
try
{
// try the operation
operation();
// if the operation is successful, break out of the loop
// all the subsequent operations will go to the new URL
break;
}
catch (Exception)
{
// nothing can be done, try next URL
}
}
}
