private async Task ExportOptions(JsonTextWriter writer, JsonSerializer serializer, ExportImportProgressInfo progressInfo, Action <ExportImportProgressInfo> progressCallback, ICancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
progressInfo.Description = "Exporting options...";
progressCallback(progressInfo);
var thumbnailOption = await _optionSearchService.SearchAsync(new ThumbnailOptionSearchCriteria { Take = 0, Skip = 0 });
var totalCount = thumbnailOption.TotalCount;
writer.WritePropertyName("OptionsTotalCount");
writer.WriteValue(totalCount);
writer.WritePropertyName("Options");
writer.WriteStartArray();
for (int i = 0; i < totalCount; i += _batchSize)
{
var options = await _optionSearchService.SearchAsync(new ThumbnailOptionSearchCriteria { Take = _batchSize, Skip = i });
foreach (var option in options.Results)
{
serializer.Serialize(writer, option);
}
writer.Flush();
progressInfo.Description = $"{Math.Min(totalCount, i + _batchSize)} of {totalCount} options exported";
progressCallback(progressInfo);
}
writer.WriteEndArray();
}
public async Task DoExportAsync(Stream outStream, Action <ExportImportProgressInfo> progressCallback, ICancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
var progressInfo = new ExportImportProgressInfo {
Description = "loading data..."
};
progressCallback(progressInfo);
using (var sw = new StreamWriter(outStream, Encoding.UTF8))
{
using (var writer = new JsonTextWriter(sw))
{
await writer.WriteStartObjectAsync();
progressInfo.Description = "Options are started to export";
progressCallback(progressInfo);
await writer.WritePropertyNameAsync("Options");
await writer.SerializeJsonArrayWithPagingAsync(_jsonSerializer, _batchSize, async (skip, take) =>
{
var searchCriteria = AbstractTypeFactory <ThumbnailOptionSearchCriteria> .TryCreateInstance();
searchCriteria.Take = take;
searchCriteria.Skip = skip;
var searchResult = await _optionSearchService.SearchAsync(searchCriteria);
return((GenericSearchResult <ThumbnailOption>)searchResult);
}, (processedCount, totalCount) =>
{
progressInfo.Description = $"{processedCount} of {totalCount} Options have been exported";
progressCallback(progressInfo);
}, cancellationToken);
progressInfo.Description = "Tasks are started to export";
progressCallback(progressInfo);
await writer.WritePropertyNameAsync("Tasks");
await writer.SerializeJsonArrayWithPagingAsync(_jsonSerializer, _batchSize, async (skip, take) =>
{
var searchCriteria = AbstractTypeFactory <ThumbnailTaskSearchCriteria> .TryCreateInstance();
searchCriteria.Take = take;
searchCriteria.Skip = skip;
var searchResult = await _taskSearchService.SearchAsync(searchCriteria);
return((GenericSearchResult <ThumbnailTask>)searchResult);
}, (processedCount, totalCount) =>
{
progressInfo.Description = $"{processedCount} of {totalCount} Tasks have been exported";
progressCallback(progressInfo);
}, cancellationToken);
await writer.WriteEndObjectAsync();
await writer.FlushAsync();
}
}
}
//get all options to create a map of all potential file names
protected virtual async Task <ICollection <ThumbnailOption> > GetOptionsCollection()
{
var options = await _thumbnailOptionSearchService.SearchAsync(new ThumbnailOptionSearchCriteria()
{
Take = int.MaxValue
});
return(options.Results.ToList());
}
public async Task <ActionResult <ThumbnailOptionSearchResult> > SearchThumbnailOption([FromBody] ThumbnailOptionSearchCriteria criteria)
{
var result = await _thumbnailOptionSearchService.SearchAsync(criteria);
return(Ok(result));
}