public void BytesToHexString()
{
var testArray = new byte[] { 1, 2, 3, 16, 17, 255 };
var hexString = HexFormatUtil.ToHexString(testArray);
Assert.IsTrue(hexString == "01 02 03 10 11 FF");
}
/// <summary>
/// Tries to send the given message to the currently connected partner
/// </summary>
/// <param name="buffer">The bytes to be sent</param>
/// <returns>True when sending was successful</returns>
public override async Task <bool> SendAsync(ArraySegment <byte> buffer)
{
buffer.MustNotBeDefault(nameof(buffer));
if (buffer.Count <= 0)
{
this.Log(LoggingMessageType.Error, "Unable to send message: Message is empty!");
return(false);
}
var currentClient = this.GetCurrentSendSocket();
if (currentClient == null)
{
this.Log(LoggingMessageType.Error, "Unable to send message: Connection is not established currently!");
return(false);
}
try
{
await currentClient.SendAsync(buffer, SocketFlags.None)
.ConfigureAwait(false);
if (this.IsLoggerSet)
{
this.Log(
LoggingMessageType.Info,
StringBuffer.Format("Sent {0} bytes: {1}", buffer.Count, HexFormatUtil.ToHexString(buffer)));
}
return(true);
}
catch (Exception sendException)
{
if (this.IsLoggerSet)
{
this.Log(
LoggingMessageType.Info,
StringBuffer.Format("Error while sending message: {0}", sendException.Message));
}
return(false);
}
}
/// <inheritdoc />
public override Task <bool> SendAsync(ArraySegment <byte> buffer)
{
if ((buffer.Count <= 0) ||
(buffer.Array == null))
{
this.Log(LoggingMessageType.Error, "Unable to send message: Message is empty!");
return(s_completedTaskFalse);
}
var serialPort = _serialPort;
if (serialPort == null)
{
this.Log(LoggingMessageType.Error, "Unable to send message: Connection is not started!");
return(s_completedTaskFalse);
}
try
{
serialPort.Write(buffer.Array, buffer.Offset, buffer.Count);
if (this.IsLoggerSet)
{
this.Log(
LoggingMessageType.Info,
StringBuffer.Format("Sent {0} bytes: {1}", buffer.Count, HexFormatUtil.ToHexString(buffer)));
}
return(s_completedTaskTrue);
}
catch (Exception ex)
{
if (this.IsLoggerSet)
{
this.Log(
LoggingMessageType.Info,
StringBuffer.Format("Error while sending message: {0}", ex.Message));
}
return(s_completedTaskFalse);
}
}
private void ProcessReceivedBytes(bool newConnection, byte[] buffer, int receivedBytesCount)
{
buffer.MustNotBeNull(nameof(buffer));
var receiveBuffer = new ArraySegment <byte>(buffer, 0, receivedBytesCount);
// Log currently received bytes
if (this.IsLoggerSet)
{
this.Log(
LoggingMessageType.Info,
StringBuffer.Format("Received {0} bytes: {1}", receiveBuffer.Count, HexFormatUtil.ToHexString(receiveBuffer)));
}
// Notify received bytes
var messageRecognizer = this.MessageRecognizer;
messageRecognizer?.OnReceivedBytes(newConnection, receiveBuffer);
}