public bool MoveNext()
{
lock (this.client)
{
if (resultIndex < results.Count)
{
this.current = results[resultIndex++];
return(true);
}
else
{
ResponsePull response;
if (this.context == null)
{
if (resultIndex > 0)
{
// case: previous pull returned an invalid context
return(false);
}
RequestEnumeration request = new RequestEnumeration(filter);
if (attributes != null)
{
request.Selection = new List <string>();
request.Selection.AddRange(this.attributes);
}
Message msgRequest = requestFactory.CreateEnumerationRequest(request);
Message msgResponse = client.Enumerate(msgRequest);
if (msgResponse.IsFault)
{
ClientHelper.HandleFault(msgResponse);
}
response = responseFactory.CreateEnumerationResponse(msgResponse);
this.endOfSequence = response.EndOfSequence != null;
}
else
{
if (this.endOfSequence == true)
{
// case: previous pull returned an end of sequence flag
this.current = null;
return(false);
}
RequestPull request = new RequestPull();
request.EnumerationContext = this.context;
Message msgRequest = requestFactory.CreatePullRequest(request);
Message msgResponse = client.Pull(msgRequest);
if (msgResponse.IsFault)
{
ClientHelper.HandleFault(msgResponse);
}
response = responseFactory.CreatePullResponse(msgResponse);
}
if (response == null)
{
return(false);
}
resultIndex = 0;
this.results = resourceFactory.CreateResource(response, false).ConvertAll <RmResource>(x => x as RmResource);
this.context = response.EnumerationContext;
this.endOfSequence = response.IsEndOfSequence;
if (this.results.Count > 0)
{
this.current = results[resultIndex++];
return(true);
}
else
{
this.current = null;
return(false);
}
}
}
}