/// <summary>
/// Resets the <see cref="ReqIFLoaderService"/> by clearing <see cref="ReqIFData"/> and
/// <see cref="sourceStream"/>
/// </summary>
public void Reset()
{
this.sourceStream = null;
this.ReqIFData = null;
this.externalObjectDataCache.Clear();
this.logger.LogDebug("loader service reset");
ReqIfChanged?.Invoke(this, null);
}
/// <summary>
/// Loads the <see cref="ReqIF"/> objects from the provided <see cref="Stream"/>
/// and stores the result in the <see cref="ReqIFData"/> property.
/// </summary>
/// <param name="reqIFStream">
/// a <see cref="Stream"/> that contains <see cref="ReqIF"/> content
/// </param>
/// <param name="token">
/// A cancellation token that can be used by other objects or threads to receive notice of cancellation.
/// </param>
/// <returns>
/// an awaitable <see cref="Task"/>
/// </returns>
public async Task Load(Stream reqIFStream, CancellationToken token)
{
this.externalObjectDataCache.Clear();
this.sourceStream = new MemoryStream();
var deserializationStream = new MemoryStream();
this.logger.LogDebug("copying the reqif stream to the deserialization stream for deserialization");
reqIFStream.Seek(0, SeekOrigin.Begin);
await reqIFStream.CopyToAsync(deserializationStream, 81920, token);
if (deserializationStream.Position != 0)
{
deserializationStream.Seek(0, SeekOrigin.Begin);
}
this.logger.LogDebug("copying the reqif stream to the source stream for safe keeping");
reqIFStream.Seek(0, SeekOrigin.Begin);
await reqIFStream.CopyToAsync(this.sourceStream, 81920, token);
if (this.sourceStream.Position != 0)
{
this.sourceStream.Seek(0, SeekOrigin.Begin);
}
IEnumerable <ReqIF> result = null;
var sw = Stopwatch.StartNew();
this.logger.LogDebug("starting deserialization");
result = await this.reqIfDeSerializer.DeserializeAsync(deserializationStream, token);
this.logger.LogDebug("deserialization finished in {time} [ms]", sw.ElapsedMilliseconds);
deserializationStream.Dispose();
this.ReqIFData = result;
ReqIfChanged?.Invoke(this, this.ReqIFData);
}