public async Task StoreAsync(string id, string name, Stream stream, string contentType = null, CancellationToken token = default)
{
PutAttachmentCommandHelper.ValidateStream(stream);
using var linkedCts = CancellationTokenSource.CreateLinkedTokenSource(token, _token);
using (_operation.ConcurrencyCheck())
{
_operation.EndPreviousCommandIfNeeded();
await _operation.ExecuteBeforeStore().ConfigureAwait(false);
try
{
if (_operation._first == false)
{
_operation.WriteComma();
}
_operation._currentWriter.Write("{\"Id\":\"");
_operation.WriteString(id);
_operation._currentWriter.Write("\",\"Type\":\"AttachmentPUT\",\"Name\":\"");
_operation.WriteString(name);
if (contentType != null)
{
_operation._currentWriter.Write("\",\"ContentType\":\"");
_operation.WriteString(contentType);
}
_operation._currentWriter.Write("\",\"ContentLength\":");
_operation._currentWriter.Write(stream.Length);
_operation._currentWriter.Write('}');
await _operation.FlushIfNeeded().ConfigureAwait(false);
PutAttachmentCommandHelper.PrepareStream(stream);
// pass the default value for bufferSize to make it compile on netstandard2.0
await stream.CopyToAsync(_operation._currentWriter.BaseStream, bufferSize : 16 * 1024, cancellationToken : linkedCts.Token).ConfigureAwait(false);
await _operation.FlushIfNeeded().ConfigureAwait(false);
}
catch (Exception e)
{
await _operation.HandleErrors(id, e).ConfigureAwait(false);
}
}
}
public override HttpRequestMessage CreateRequest(JsonOperationContext ctx, ServerNode node, out string url)
{
PutAttachmentCommandHelper.PrepareStream(_stream);
url = $"{node.Url}/databases/{node.Database}/attachments?id={Uri.EscapeDataString(_documentId)}&name={Uri.EscapeDataString(_name)}";
if (string.IsNullOrWhiteSpace(_contentType) == false)
{
url += $"&contentType={Uri.EscapeDataString(_contentType)}";
}
var request = new HttpRequestMessage
{
Method = HttpMethods.Put,
Content = new AttachmentStreamContent(_stream, CancellationToken)
};
AddChangeVectorIfNotNull(_changeVector, request);
return(request);
}
public PutAttachmentCommand(string documentId, string name, Stream stream, string contentType, string changeVector)
{
if (string.IsNullOrWhiteSpace(documentId))
{
throw new ArgumentNullException(nameof(documentId));
}
if (string.IsNullOrWhiteSpace(name))
{
throw new ArgumentNullException(nameof(name));
}
_documentId = documentId;
_name = name;
_stream = stream;
_contentType = contentType;
_changeVector = changeVector;
PutAttachmentCommandHelper.ValidateStream(stream);
}
