public override DataMatrix ExtractReportData(IProgressObserver progress)
{
var service = new TaxaService(User);
progress.ProgressStart(String.Format("Preparing Darwin Core records for {0} specimens...", _idSet.Count));
DataMatrix result = null;
var idSet = new LinkedList <int>(_idSet);
int chunkSize = 2000;
var helper = new DarwinCoreReportHelper();
var chunk = new List <int>();
var count = 0;
while (idSet.Count > 0)
{
chunk.Add(idSet.First.Value);
idSet.RemoveFirst();
count++;
if (chunk.Count >= chunkSize || idSet.Count == 0)
{
var percentComplete = ((double)count / (double)_idSet.Count) * 100;
progress.ProgressMessage(String.Format("Preparing Darwin Core records {0} of {1}", count, _idSet.Count), percentComplete);
var where = "tblMaterial.intMaterialID in (" + chunk.Join(",") + ")";
var dataChunk = helper.RunDwcQuery(service, where);
if (result == null)
{
result = dataChunk;
}
else
{
result.AppendMatrix(dataChunk);
}
chunk = new List <int>();
}
}
progress.ProgressEnd(String.Format("{0} Darwin Core records retrieved.", count));
return(result);
}