/// <summary>
/// Retrieves the attributes from the directory using the distinguished name. <see cref="SearchScope.Base"/> is used.
/// </summary>
/// <param name="connection">The connection to the directory.</param>
/// <param name="log">The log for query information. Defaults to null.</param>
/// <param name="distinguishedName">The distinguished name to look for.</param>
/// <param name="attributes">The attributes to load.</param>
/// <returns></returns>
public static IDirectoryAttributes GetByDN(this LdapConnection connection, string distinguishedName, ILinqToLdapLogger log = null, params string[] attributes)
{
try
{
if (connection == null)
{
throw new ArgumentNullException("connection");
}
var request = new SearchRequest {
DistinguishedName = distinguishedName, Scope = SearchScope.Base
};
if (attributes != null)
{
request.Attributes.AddRange(attributes);
}
var transformer = new DynamicResultTransformer();
if (log != null && log.TraceEnabled)
{
log.Trace(request.ToLogString());
}
var response = connection.SendRequest(request) as SearchResponse;
response.AssertSuccess();
// ReSharper disable PossibleNullReferenceException
return((response.Entries.Count == 0
// ReSharper restore PossibleNullReferenceException
? transformer.Default()
: transformer.Transform(response.Entries[0])) as IDirectoryAttributes);
}
catch (Exception ex)
{
if (log != null)
{
log.Error(ex, string.Format("An error occurred while trying to retrieve '{0}'.", distinguishedName));
}
throw;
}
}
/// <summary>
/// Retrieves the attributes from the directory using the distinguished name. <see cref="SearchScope.Base"/> is used.
/// </summary>
/// <param name="connection">The connection to the directory.</param>
/// <param name="log">The log for query information. Defaults to null.</param>
/// <param name="distinguishedName">The distinguished name to look for.</param>
/// <param name="attributes">The attributes to load.</param>
/// <param name="resultProcessing">How the async results are processed</param>
/// <returns></returns>
public static async Task <IDirectoryAttributes> GetByDNAsync(this LdapConnection connection, string distinguishedName, ILinqToLdapLogger log = null, string[] attributes = null,
PartialResultProcessing resultProcessing = LdapConfiguration.DefaultAsyncResultProcessing)
{
try
{
if (connection == null)
{
throw new ArgumentNullException("connection");
}
var request = new SearchRequest {
DistinguishedName = distinguishedName, Scope = SearchScope.Base
};
if (attributes != null)
{
request.Attributes.AddRange(attributes);
}
var transformer = new DynamicResultTransformer();
if (log != null && log.TraceEnabled)
{
log.Trace(request.ToLogString());
}
#if NET45
return(await System.Threading.Tasks.Task.Factory.FromAsync(
(callback, state) =>
{
return connection.BeginSendRequest(request, resultProcessing, callback, state);
},
(asyncresult) =>
{
var response = connection.EndSendRequest(asyncresult) as SearchResponse;
response.AssertSuccess();
return (response.Entries.Count == 0
? transformer.Default()
: transformer.Transform(response.Entries[0])) as IDirectoryAttributes;
},
null
).ConfigureAwait(false));
#else
var response = await Task.Run(() => connection.SendRequest(request) as SearchResponse).ConfigureAwait(false);
response.AssertSuccess();
return((response.Entries.Count == 0
? transformer.Default()
: transformer.Transform(response.Entries[0])) as IDirectoryAttributes);
#endif
}
catch (Exception ex)
{
if (log != null)
{
log.Error(ex, string.Format("An error occurred while trying to retrieve '{0}'.", distinguishedName));
}
throw;
}
}
