public DataFlow(ImporterConfiguration configuration)
{
try
{
var stopwatch = new Stopwatch();
stopwatch.Start();
Logger.GetLogger().SetLogginLevel(Logger.LogLevel.Debug);
if (configuration.Files.TryGetValue("Error_Output", out string errorPath))
{
ErrorOutput.SetOutputTarget(File.Open(errorPath, FileMode.Create, FileAccess.Write, FileShare.Read));
}
this.LoadDictionaries(configuration.Files, configuration.Readers).Wait();
this.writers = configuration.Writers.Where(x => !x.Disabled)
.Select(
x =>
{
if (configuration.Files.TryGetValue(x.Name, out string filePath))
{
return(FileWriter.GetFileWriter(File.Open(filePath, FileMode.Create, FileAccess.Write, FileShare.Read), x));
}
throw new ArgumentOutOfRangeException($"There is no file path defined for \"{x.Name}\"");
})
.ToList();
var reader = configuration.Readers.FirstOrDefault(x => !x.Disabled && !DataDictionary.GetDictionaryNames().Contains(x.Name));
if (reader != null)
{
if (configuration.Files.TryGetValue(reader.Name, out string readerFilePath))
{
if (!File.Exists(readerFilePath))
{
throw new FileNotFoundException($"File \"{readerFilePath}\" not found");
}
using (var fileReader = FileReader.GetFileReader(File.Open(readerFilePath, FileMode.Open, FileAccess.Read, FileShare.Read), reader))
{
var cancellationTokenSource = new CancellationTokenSource();
var tasks = new Task[Environment.ProcessorCount];
for (var i = 0; i < Environment.ProcessorCount; i++)
{
tasks[i] = Task.Run(() => this.WriterTask(cancellationTokenSource.Token));
}
foreach (var record in fileReader.ReadData())
{
if (this.buffer.Count > MAX_BUFFER_SIZE)
{
Logger.GetLogger().DebugAsync("Reached record buffer limit");
Thread.Sleep(50);
}
this.buffer.Add(record);
}
cancellationTokenSource.Cancel();
Task.WaitAll(tasks);
Logger.GetLogger().InfoAsync($"Successfully saved {this.successfulRecordCount} records");
Logger.GetLogger().InfoAsync($"Failed to process {this.exceptionRecordCount} records");
}
}
}
stopwatch.Stop();
Logger.GetLogger()
.InfoAsync($"Finished data processing in {stopwatch.Elapsed.Hours:00}:{stopwatch.Elapsed.Minutes:00}:{stopwatch.Elapsed.Seconds:00}.{stopwatch.Elapsed.Milliseconds}");
}
finally
{
ErrorOutput.Flush();
}
}
