private void WriteFilesAsAttachments(JsonTextWriter jsonWriter)
{
int totalFilesCount = 0;
fileStorage.Batch(accsesor =>
{
totalFilesCount = accsesor.GetFileCount();
});
if (totalFilesCount == 0)
{
return;
}
int currentFilesCount = 0;
int previousFilesCount = 0;
var lastEtag = Etag.Empty;
do
{
try
{
previousFilesCount = currentFilesCount;
fileStorage.Batch(accsesor =>
{
var fileHeaders = accsesor.GetFilesAfter(lastEtag, batchSize);
foreach (var header in fileHeaders)
{
var file = StorageStream.Reading(fileStorage, header.FullPath);
jsonWriter.WriteStartObject();
jsonWriter.WritePropertyName("Data");
int read = file.Read(filesBuffer, 0, filesBuffer.Length);
jsonWriter.WriteRaw("\"");
while (read > 0)
{
var base64 = Convert.ToBase64String(filesBuffer, 0, read);
jsonWriter.WriteRaw(base64);
jsonWriter.Flush();
read = file.Read(filesBuffer, 0, filesBuffer.Length);
}
jsonWriter.WriteRaw("\"");
jsonWriter.SealValue();
jsonWriter.WritePropertyName("Metadata");
fileMetadata.WriteTo(jsonWriter);
jsonWriter.WritePropertyName("Key");
jsonWriter.WriteValue(header.FullPath);
jsonWriter.WritePropertyName("Etag");
jsonWriter.WriteValue(header.Etag.ToString());
jsonWriter.WriteEndObject();
lastEtag = header.Etag;
currentFilesCount++;
if (currentFilesCount % batchSize == 0)
{
ReportProgress("files", currentFilesCount, totalFilesCount);
}
}
});
}
catch (Exception e)
{
lastEtag = lastEtag.IncrementBy(1);
currentFilesCount++;
ReportCorrupted("files", currentFilesCount, e.Message);
}
finally
{
if (currentFilesCount > previousFilesCount)
{
ReportProgress("files", currentFilesCount, totalFilesCount);
}
}
} while (currentFilesCount < totalFilesCount);
}