Raven.Database.DocumentDatabase.Batch C# (CSharp) Method

		public BatchResult[] Batch(IEnumerable<ICommandData> commands)
		{
			var results = new List<BatchResult>();

			var commandDatas = commands.ToArray();
			int retries = 128;
			var shouldLock = commandDatas.Any(x=>x is PutCommandData || x is PatchCommandData);
			var shouldRetryIfGotConcurrencyError = commandDatas.All(x => x is PatchCommandData);
			bool shouldRetry = false;
			if(shouldLock)
				Monitor.Enter(putSerialLock);
			try
			{
				log.Debug("Executing batched commands in a single transaction");
				do
				{
					try
					{
						TransactionalStorage.Batch(actions =>
						{
							foreach (var command in commandDatas)
							{
								command.Execute(this);
								results.Add(new BatchResult
								{
									Method = command.Method,
									Key = command.Key,
									Etag = command.Etag,
									Metadata = command.Metadata
								});
							}
							workContext.ShouldNotifyAboutWork();
						});
					}
					catch (ConcurrencyException)
					{
						if (shouldRetryIfGotConcurrencyError && retries-- > 128)
						{
							shouldRetry = true;
							results.Clear();
							continue;
						}
						throw;
					}
				} while (shouldRetry);
				log.Debug("Successfully executed {0} commands", results.Count);
			}
			finally
			{
				if(shouldLock)
					Monitor.Exit(putSerialLock);
			}
			return results.ToArray();
		}