/// <summary>
/// 1) If file exists it is renamed to file.delete
/// 2) The contents of <paramref name="stream"/> is saved to tempFile
/// 3.a 1) On success tempfile is renamed to <paramref name="file"/>
/// 2.a) If backup file.delete is renamed to backup name.
/// 2.b) If no backup file.delete is deleted
/// 3.b 1) file.delete is renamed back to file
/// 2) tempfile is deleted
/// </summary>
protected void SaveStreamCore(FileInfo file, FileInfo tempFile, Stream stream)
{
using (var transaction = new SaveTransaction(file, tempFile, stream, this.Backuper))
{
transaction.Commit(this.serialize, this.Settings);
}
}
/// <summary>
/// Save <paramref name="stream"/> to <paramref name="tempFile"/> then rename it to <paramref name="file"/>.
/// Uses a <see cref="SaveTransaction"/>
/// </summary>
protected async Task SaveStreamCoreAsync(FileInfo file, FileInfo tempFile, Stream stream)
{
using (var saveTransaction = new SaveTransaction(file, tempFile, stream, this.Backuper))
{
await saveTransaction.CommitAsync()
.ConfigureAwait(false);
}
}
/// <summary>
/// Caches and tracks if needed.
/// Then serializes and saves.
/// </summary>
protected void SaveCore <T>(FileInfo file, FileInfo tempFile, T item)
{
this.CacheAndTrackCore(file, item);
using (var transaction = new SaveTransaction(file, tempFile, item, this.Backuper))
{
transaction.Commit(this.serialize, this.Settings);
}
}