public async Task SerializeToXml(ISourceBlock <Person> source)
{
var settings = new XmlWriterSettings();
settings.Indent = true;
XmlSerializer xml = new XmlSerializer(typeof(Person));
using (FileStream fs = File.Create(XmlPath))
using (StreamWriter sw = new StreamWriter(fs))
using (XmlWriter xw = XmlTextWriter.Create(sw, settings))
{
xw.WriteStartDocument();
xw.WriteStartElement("People");
string temp = string.Empty;
while (await source.OutputAvailableAsync())
{
var person = source.Receive();
xw.WriteStartElement("Person");
xw.WriteElementString("Name", person.Name);
xw.WriteElementString("Surname", person.Surname);
xw.WriteElementString("Countrt", person.Country);
xw.WriteElementString("Email", person.Email);
xw.WriteElementString("IpAddress", person.IpAddress);
xw.WriteEndElement();
}
xw.WriteEndElement();
xw.WriteEndDocument();
}
}
static async Task <int> ConsumeAsync(ISourceBlock <List <Vertex> > source)
{
// Initialize a counter to track the number of bytes that are processed.
int nodesProcessed = 0;
int batch = 0;
ElasticClient client = new ElasticClient(new Uri(AppSettings.Current.ElasticServerUrl));
Console.WriteLine("Indexing documents into elasticsearch...");
// Read from the source buffer until the source buffer has no
// available output data.
while (await source.OutputAvailableAsync())
{
Stopwatch sw = new Stopwatch();
sw.Start();
List <Vertex> nodes = source.Receive();
var sb = new StringBuilder();
foreach (var item in nodes)
{
sb.AppendLine(JsonConvert.SerializeObject(item, Formatting.None));
}
File.AppendAllText("/Users/chinkit/00D2D-CRC/04-BigData/stackoverflow/step2/full-graph.json", sb.ToString());
// Increment the count of bytes received.
nodesProcessed += nodes.Count;
Console.WriteLine($"Batch {batch++} : Documented {nodesProcessed} ellapsed is {sw.ElapsedMilliseconds / 1000} seconds");
}
return(nodesProcessed);
}
// Demonstrates the consumption end of the producer and consumer pattern.
public async Task <int> ConsumeAsync(ISourceBlock <byte[]> source)
{
// Initialize a counter to track the number of bytes that are processed.
int bytesProcessed = 0;
// Read from the source buffer until the source buffer has no
// available output data.
while (await source.OutputAvailableAsync())
{
byte[] data = source.Receive();
// Increment the count of bytes received.
bytesProcessed += data.Length;
//My code for debugging
lock (consumerLocker)
{
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("The processed bytes so far: " + bytesProcessed);
Console.ForegroundColor = ConsoleColor.White;
}
}
return(bytesProcessed);
}
// TODO: Wait until this becomes a part of the API
// https://github.com/dotnet/corefx/issues/41125
public async static IAsyncEnumerable <TOutput> ReceiveAllAsync <TOutput>(this ISourceBlock <TOutput> source, [EnumeratorCancellation] CancellationToken cancellationToken = default)
{
while (await source.OutputAvailableAsync(cancellationToken))
{
yield return(source.Receive());
}
}
static async Task UserInputHandler(ISourceBlock <UserInputEvent> source)
{
// Read from the source buffer until the source buffer has no
// available output data.
while (await source.OutputAvailableAsync())
{
var input = source.Receive();
if (input == UserInputEvent.ButtonPress)
{
if (boardState == clock)
{
boardState = countdown;
}
else
{
boardState = clock;
}
}
if (input == UserInputEvent.RotateRight && boardState == countdown)
{
countdown.Increase();
}
else if (input == UserInputEvent.RotateLeft && boardState == countdown)
{
countdown.Decrease();
}
}
}
//This is the method that consumes the Matrix images and runs some openCV
//processing on each before saving them. The threads are asynchronus
//so processing can occur out of order intentionally to speed up the flow
private static async void AsynchronousImageConv(ISourceBlock <Image> imageQueue)
{
while (await imageQueue.OutputAvailableAsync())
{
Image producedResult = imageQueue.Receive();
Task.Run(
() =>
{
if (DateTime.Now.Ticks % 3 == 0)
{
Thread.Sleep(550);
}
Mat output = new Mat();
Mat input = producedResult.mat;
Mat flipped = input.Flip(FlipMode.Y);
//create an inversion effect i.e white becomes black
Cv2.BitwiseNot(flipped, output);
string outputName = @"C:\Temp\MetroImgs\Output\" + producedResult.filename;
output.ImWrite(outputName);
Console.WriteLine("Processed Image {0} from the queue:", producedResult.filename);
WriteToLog("Processed Image " + producedResult.filename + " from the queue: \n");
});
}
}
private async Task <bool> SaveAsync(ISourceBlock <System.Action> source)
{
while (await source.OutputAvailableAsync())
{
var data = source.Receive();
data.Invoke();
}
return(true);
}
protected override async Task LogConsumerAsync(ISourceBlock <string> Source)
{
while (await Source.OutputAvailableAsync())
{
await WriteToFile($"{DateTime.Now} {Source.Receive()}\n");
LogWriteEvent?.Invoke(this, EventArgs.Empty);
}
}
internal async Task <int> ConsumeBuffer(ISourceBlock <SyslogMessageInfo> source)
{
int count = 0;
using (var bucket = DbCluster.OpenBucket("BornToFail1"))
{
while (await source.OutputAvailableAsync())
{
var message = source.Receive();
var document = new Document <dynamic>
{
Id = DocumentPrefix + "message::" + Guid.NewGuid().ToString(),
Content = message
};
var insert = await bucket.InsertAsync(document);
if (insert.Success)
{
Console.WriteLine(document.Id);
count++;
}
else
{
System.Diagnostics.Debug.WriteLine(insert.Status.ToString());
}
if (
message.Message != null &&
message.Message.Header != null &&
message.Message.Header.MessageType != null &&
message.Message.Header.MessageType.Facility == "SYS" &&
message.Message.Header.MessageType.Mnemonic == "CONFIG_I"
)
{
var oldColor = Console.ForegroundColor;
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("Received Configuration change notification from " + message.Sender.ToString());
Console.ForegroundColor = oldColor;
var client = new HttpClient();
var response = await PostAsJsonAsync(
client,
"http://localhost:51954/api/values",
new ConfigRequestObject
{
ConfigurationId = Guid.NewGuid(),
DeviceId = message.Sender.Address.ToString()
}
);
}
}
}
return(count);
}
// Demonstrates the consumption end of the producer and consumer pattern.
async Task ConsumeAsync(ISourceBlock <IMessage> source)
{
// Read from the source buffer until the source buffer has no
// available output data.
while (await source.OutputAvailableAsync())
{
var data = source.Receive();
aggregateMessage.AddMessage(data);
}
}
protected override async Task LogConsumerAsync(ISourceBlock <string> Source)
{
while (await Source.OutputAvailableAsync())
{
LogEntry le = new LogEntry()
{
Timestamp = DateTimeOffset.Now, Message = Source.Receive()
};
_repoManager.LogEntryRepository.Add(le);
}
}
protected override async Task ErrorConsumerAsync(ISourceBlock <Exception> Source)
{
while (await Source.OutputAvailableAsync())
{
LogEntry le = new LogEntry()
{
Event = "Exception", Timestamp = DateTimeOffset.Now, Message = Source.Receive().ToString()
};
_repoManager.LogEntryRepository.Add(le);
}
}
public async Task <dynamic> ConsumeAsync(ISourceBlock <object> source, Action <object> action)
{
while (await source.OutputAvailableAsync())
{
object data = source.Receive();
action(data);
}
return(null);
}
private static async void AsynchronousConsumer(ISourceBlock <IList <int> > sourceBlock)
{
while (await sourceBlock.OutputAvailableAsync())
{
var producedResult = sourceBlock.Receive();
foreach (var result in producedResult)
{
Console.WriteLine("Receiver Received:" + result);
}
}
}
public async Task Sender(ISourceBlock <string> source)
{
while (await source.OutputAvailableAsync())
{
try
{
string data = source.Receive();
await Client.SendAsync(data);
}
catch (Exception)
{
}
}
}
private async Task ConsumeObjects(ImportContext context, SchemaType type, ISourceBlock <IUser> source)
{
long userHighestTicks = 0;
while (await source.OutputAvailableAsync())
{
IUser user = source.Receive();
try
{
if (user.LastUpdated.HasValue)
{
AsyncHelper.InterlockedMax(ref userHighestTicks, user.LastUpdated.Value.Ticks);
}
CSEntryChange c = await this.UserToCSEntryChange(context.InDelta, type, user, context).ConfigureAwait(false);
if (c != null)
{
context.ImportItems.Add(c, context.CancellationTokenSource.Token);
}
}
catch (Exception ex)
{
UserImportProvider.logger.Error(ex);
CSEntryChange csentry = CSEntryChange.Create();
csentry.DN = user.Id;
csentry.ErrorCodeImport = MAImportError.ImportErrorCustomContinueRun;
csentry.ErrorDetail = ex.StackTrace;
csentry.ErrorName = ex.Message;
context.ImportItems.Add(csentry, context.CancellationTokenSource.Token);
}
context.CancellationTokenSource.Token.ThrowIfCancellationRequested();
}
string wmv;
if (userHighestTicks <= 0)
{
wmv = context.IncomingWatermark["users"].Value;
}
else
{
wmv = userHighestTicks.ToString();
}
context.OutgoingWatermark.Add(new Watermark("users", wmv, "DateTime"));
}
public static async Task <int> SaveFileAsync(ISourceBlock <string> source)
{
while (await source.OutputAvailableAsync())
{
WebClient wc = new WebClient();
if (!Directory.Exists("img"))
{
Directory.CreateDirectory("img");
}
var imageUrl = source.Receive();
var savePath = GetCacheImageName(imageUrl);
wc.DownloadFile(imageUrl, savePath);
}
return(1);
}
public static async Task <MeasurmentsData> MeasureDataAsync(this ISourceBlock <int> block, int[] keys)
{
var stopwatches = keys.ToDictionary(x => x, x => new Stopwatch());
var seq = new List <double>();
var stats = keys.ToDictionary(x => x, x => new List <double>());
while (await block.OutputAvailableAsync().ConfigureAwait(false))
{
var x = block.Receive();
seq.Add(x);
stopwatches[x].Stop();
stats[x].Add(stopwatches[x].ElapsedMilliseconds);
stopwatches[x].Restart();
}
return(new MeasurmentsData(stats, seq));
}
// Demonstrates the consumption end of the producer and consumer pattern.
static async Task <int> ConsumeAsync(ISourceBlock <int> source)
{
// Initialize a counter to track the number of bytes that are processed.
int intProcessed = 0;
// Read from the source buffer until the source buffer has no
// available output data.
while (await source.OutputAvailableAsync())
{
int data = source.Receive();
// Increment the sum of int received.
intProcessed += data;
}
return(intProcessed);
}
static async Task <int> ConsumeAsync(ISourceBlock <int> source)
{
// Initialize a counter to track the sum.
int sumOfProcessed = 0;
// Read from the source buffer until empty
while (await source.OutputAvailableAsync())
{
int data = source.Receive();
// calculate the sum.
sumOfProcessed += data;
}
return(sumOfProcessed);
}
static async Task <int> ConsumeAsync(ISourceBlock <byte[]> source)
{
int chunksProcessed = 0;
int byteProcessed = 0;
// keep reading untill source data is exhausted
while (await source.OutputAvailableAsync())
{
byte[] sourceChunkData = source.Receive();
chunksProcessed++;
byteProcessed += sourceChunkData.Length;
}
Console.WriteLine("Chunks ; " + chunksProcessed);
return(byteProcessed);
}
// Demonstrates the consumption end of the producer and consumer pattern.
private static async Task <int> ConsumeAsync(ISourceBlock <byte[]> source)
{
// Initialize a counter to track the number of bytes that are processed.
int bytesProcessed = 0;
// Read from the source buffer until the source buffer has no
// available output data.
while (await source.OutputAvailableAsync().ConfigureAwait(false))
{
byte[] data = source.Receive();
// Increment the count of bytes received.
Interlocked.Add(ref bytesProcessed, data.Length);
}
return(bytesProcessed);
}
// Demonstrates the consumption end of the producer and consumer pattern.
public async Task <int> ConsumeAsync(ISourceBlock <byte[]> source)
{
// Initialize a counter to track the number of bytes that are processed.
int bytesProcessed = 0;
// Read from the source buffer until the source buffer has no
// available output data.
while (await source.OutputAvailableAsync())
{
byte[] data = source.Receive();
// Increment the count of bytes received.
bytesProcessed += data.Length;
}
return(bytesProcessed);
}
/// <summary>
/// Preparing the match list for saving do tb - include isExist check
/// </summary>
/// <param name="source"></param>
/// <returns></returns>
static async Task <List <Match> > FetchData(ISourceBlock <Match> source)
{
List <Match> matches = new List <Match>();
while (await source.OutputAvailableAsync())
{
Match match = source.Receive();
// Check is match already exist in the db
if (!matches.Any(m => m.Competition == match.Competition && m.TeamA == match.TeamA && m.TeamB == match.TeamB))
{
matches.Add(match);
}
}
return(matches);
}
// Demonstrates the consumption end of the producer and consumer pattern.
static async Task <int> ConsumeAsync(ISourceBlock <string> source)
{
// Initialize a counter to track the number of bytes that are processed.
int bytesProcessed = 0;
// Read from the source buffer until the source buffer has no
// available output data.
while (await source.OutputAvailableAsync())
{
//byte[] data = source.Receive();
//// Increment the count of bytes received.
//bytesProcessed += data.Length;
//Console.WriteLine(data[3].ToString());
Console.WriteLine(source.Receive());
bytesProcessed++;
}
return(bytesProcessed);
}
public Task StartAsync(CancellationToken cancellationToken)
{
return(Task.Run(async() =>
{
try
{
while (await _source.OutputAvailableAsync(cancellationToken))
{
var channelMessage = _source.Receive();
channelMessage.Send(_channel);
}
}
catch (OperationCanceledException)
{
//all good, time to stop
}
}));
}
public static async Task <MeasurmentsData> MeasureDataAsync(this ISourceBlock <int> block)
{
var stats = new List <double>();
var seq = new List <double>();
Stopwatch sw = Stopwatch.StartNew();
while (await block.OutputAvailableAsync().ConfigureAwait(false))
{
var item = block.Receive();
seq.Add(item);
sw.Stop();
stats.Add(sw.ElapsedMilliseconds);
sw.Restart();
}
return(new MeasurmentsData(new Dictionary <int, List <double> > {
[-1] = stats
}, seq));
}
static async Task ConsumeAsync(ISourceBlock <Pokemon> source)
{
BlockingCollection <Pokemon> bag = new BlockingCollection <Pokemon>();
while (await source.OutputAvailableAsync())
{
Pokemon data = (Pokemon)source.Receive();
bag.Add(data);
if (!arquivosMultiplos)
{
await CriarArquivoUnico(bag);
}
else
{
await CriarArquivMultiplo(bag);
}
}
}
/// <summary>
/// Consumer. Reads tweets from producer.
/// </summary>
/// <param name="source"></param>
/// <returns></returns>
public async Task <int> ConsumeAsync(ISourceBlock <ITweet> source)
{
// Read from the source buffer until the source buffer has no
// available output data
while (await source.OutputAvailableAsync())
{
ITweet tweet = source.Receive();
if (tweet.IsRetweet)
{
// If tweet is a retweet, use the orginal tweet
tweet = tweet.RetweetedTweet;
}
AddTweet(tweet);
}
return(0);
}
static async Task ConsumeAsync(ISourceBlock <Pokemon> source)
{
BlockingCollection <Pokemon> bag = new BlockingCollection <Pokemon>();
while (await source.OutputAvailableAsync())
{
Pokemon data = (Pokemon)source.Receive();
bag.Add(data);
}
if (!multipleFiles)
{
await CreateSingleFile(bag);
}
else
{
await CreateMultipleFile(bag);
}
}
private async System.Threading.Tasks.Task WriteOutputAsync(ISourceBlock<string> source)
{
while (await source.OutputAvailableAsync())
{
string data = source.Receive();
if (OutputPane != null)
{
OutputPane.OutputStringThreadSafe(data);
OutputPane.OutputStringThreadSafe("\r\n");
}
}
}
