protected override void PrepareRoutine()
{
if (_profile.CleanBeforeImport)
{
ImportToolkit.DropTransaction(_profile.TransactionIdentificator);
}
_importIdentificator = ImportToolkit.CreateImportIdentificator(_profile);
if (_profile.EmbedSource)
{
var blob = BlobToolkit.CreateFromFile(_profile.Source.File, _importIdentificator);
_profile = new EmbeddedSourceProfile
{
BlobName = blob.Name,
CleanBeforeImport = _profile.CleanBeforeImport,
EmbedSource = _profile.EmbedSource,
Guid = Guid.NewGuid(),
RuleIdentificatorString = _profile.Rule.Identificator,
TransactionIdentificator = _profile.TransactionIdentificator,
Distributor = _profile.Distributor
};
_importIdentificator = ImportToolkit.CreateImportIdentificator(_profile);
}
// ToDo: не только ITableRule!
_sourceReader = new BufferedSourceReader(_profile.Source, _profile.Rule as ITableRule);
_sourceReader.Open();
_itemsWriter = new BufferedItemsWriter(_importIdentificator);
GC.Collect(GC.MaxGeneration, GCCollectionMode.Forced);
}
public static EmbeddedBlob CreateFromFile(string file, ImportIdentificator importIdentificator)
{
if (importIdentificator.IsNew)
{
throw new Exception("Идентификатор импорта должен быть предварительно записан");
}
var blob = EmbeddedBlob.FromFile(file);
blob.ImportIdentificatorId = importIdentificator.Id;
using (var context = new Context())
{
context.EmbeddedBlobs.AddOrAttach(blob);
context.SaveChanges();
}
return(blob);
}
public static ImportIdentificator CreateImportIdentificator(ISourceProfile target)
{
using (var context = new Context())
{
var idName = target.TransactionIdentificator + "_";
idName += context.ImportIdentificators.Count(i => i.Identificator.StartsWith(idName));
var id = new ImportIdentificator
{
DateTime = DateTime.Now,
Identificator = idName,
SourceLocation = target.Source.Location,
Distributor = target.Distributor
};
context.ImportIdentificators.AddOrAttach(id);
context.SaveChanges();
return(id);
}
}
public BufferedItemsWriter(ImportIdentificator importIdentificator)
{
_importIdentificator = importIdentificator;
_buffer = new ManagedCircleBuffer <CatalogImportItem>(ItemsBufferSize, ItemsBufferIoTimeoutMsec);
}