public virtual void Load(ProgressCallback progressNotifier, OnContinueExceptionCallback exceptionNotifier)
{
bool needLoadData = Producer != null;
if (needLoadData)
{
Verify();
}
OnLoadStart();
if (needLoadData)
{
#region RDF TableColumnsMetadata
foreach (TableColumnsMetadataItem item in Params.TableColumnsMetadata.PropertyToTypeColumnsMetadata.Mappings)
{
item.EntitySet = Params.TableMetadataEntity.EntitySet;
Entity TableColumnsMetadataEntity = TableColumnsMetadata.GetSchemaEntity(item);
Processor.ProcessRdfMetadataEntity(DataLoaderConstants.TableColumnsMetadataTableName, TableColumnsMetadataEntity);
}
#endregion
int count = 0;
int loadThreadsCount = int.Parse(ConfigurationManager.AppSettings["LoadThreadsCount"]);
var options = new ParallelOptions {
MaxDegreeOfParallelism = loadThreadsCount
};
Parallel.ForEach(Producer.GetEntitiesEnumerator(exceptionNotifier, Params), options, i =>
{
try
{
Processor.ProcessEntity(Params.TableMetadataEntity.EntitySet, i);
}
catch (Exception ex)
{
if (exceptionNotifier != null)
{
exceptionNotifier(new EntityProcessingException(i.ToString(), ex));
}
}
if (progressNotifier != null)
{
progressNotifier(Producer.EntityCount, Interlocked.Increment(ref count));
}
});
}
Processor.ProcessTableMetadataEntity(DataLoaderConstants.EntitySetTableMetadata, Params.TableMetadataEntity);
if (needLoadData)
{
Processor.ProcessEntityMetadataEntity(DataLoaderConstants.EntitySetEntityMetadata, Producer.SchemaEntity);
}
}
public ColumnsMetadataWindowViewModel(DataLoaderParams parameters)
{
_columnsMetadata = parameters.TableColumnsMetadata ?? new TableColumnsMetadata();
_entityColumnsMetadata = new PropertyToTypeColumnsMetadataMap();
}