public void FramesWithCommandOnly_SuccessfullyRead()
{
foreach (var lineSeparator in LineSeparators)
{
foreach (var inCmd in InputCommands)
{
// Connected command does NOT support EOL as "\r\n"
if (inCmd == StompCommands.Connected && lineSeparator == "\r\n")
{
continue;
}
using (MemoryStream inStream = new MemoryStream())
{
inStream.Write(inCmd + lineSeparator + lineSeparator + "\0");
inStream.Seek(0, SeekOrigin.Begin);
IStompFrameReader reader = new Stomp12FrameReader(inStream);
Frame outFrame = reader.ReadFrameAsync().Result;
Assert.AreEqual(inCmd, outFrame.Command);
Assert.IsTrue(!outFrame.Headers.Any());
Assert.IsTrue(!outFrame.Body.Any());
}
}
}
}
public void InvalidFrames_InvalidDataExceptionsThrown()
{
string[] inputInvalidFrames =
{
StompCommands.Connected + "\n" + "Problem: ConnectedWithCarriageReturn\n\r\n" + "\0",
StompCommands.Receipt + "\n" + "ProblemIsHeaderWithoutValue\n",
StompCommands.Receipt + "\n" + ":ProblemIsHeaderWithoutName\n",
StompCommands.Error + "\n" + "Problem: Value:WithSemicolon\n",
StompCommands.Error + "\n" + "Problem: Value\rWithCarriageReturn\n",
StompCommands.Message + "\n" + "Problem: NonNullTerminated\ncontent-length: 0\n\n1",
StompCommands.Message + "\n" + "Problem: NonNullTerminated\ncontent-length: 1\n\n12",
};
foreach (var inFrame in inputInvalidFrames)
{
using (MemoryStream inStream = new MemoryStream())
{
inStream.Write(StompCommands.Connected + "\r\n" + "\r\n" + "\0");
inStream.Seek(0, SeekOrigin.Begin);
IStompFrameReader reader = new Stomp12FrameReader(inStream);
try
{
Frame outFrame = reader.ReadFrameAsync().Result;
Assert.Fail("AggregateException(InvalidDataException) expected.");
}
catch (AggregateException e)
{
Assert.IsTrue(e.InnerException is InvalidDataException);
}
}
}
}
public void EndOfStreamWhileReading_EndOfStreamExceptionThrown()
{
string inFrame = StompCommands.Error + "\r\nH1:V1\nH2:V2\n\r\nABC\0";
for (int i = 0; i < inFrame.Length; i++)
{
using (MemoryStream inStream = new MemoryStream())
{
inStream.Write(inFrame.Substring(0, i));
inStream.Seek(0, SeekOrigin.Begin);
IStompFrameReader reader = new Stomp12FrameReader(inStream);
try
{
Frame outFrame = reader.ReadFrameAsync().Result;
Assert.Fail("AggregateException(EndOfStreamException) expected.");
}
catch (AggregateException e)
{
Assert.IsTrue(e.InnerException is EndOfStreamException);
}
}
}
}
public void CanceledWhileReading_TaskCanceledExceptionThrown()
{
string inFrame = StompCommands.Error + "\r\nH1:V1\nH2:V2\n\r\nABC\0";
for (int i = 0; i < inFrame.Length; i++)
{
using (MemoryStream inStream = new NoEndChunkedMemoryStream())
{
inStream.Write(inFrame.Substring(0, i));
inStream.Seek(0, SeekOrigin.Begin);
IStompFrameReader reader = new Stomp12FrameReader(inStream);
try
{
CancellationToken cToken = new CancellationTokenSource(10).Token;
Frame outFrame = reader.ReadFrameAsync(cToken).Result;
Assert.Fail("AggregateException(TaskCanceledException) expected.");
}
catch (AggregateException e)
{
Assert.IsTrue(e.InnerException is TaskCanceledException);
}
}
}
}
public void ValidHeartbeatFrame_SuccessfullyRead()
{
foreach (var lineSeparator in LineSeparators)
{
using (MemoryStream inStream = new MemoryStream())
{
inStream.Write(lineSeparator);
inStream.Seek(0, SeekOrigin.Begin);
IStompFrameReader reader = new Stomp12FrameReader(inStream);
Frame outFrame = reader.ReadFrameAsync().Result;
Assert.AreEqual(StompCommands.Heartbeat, outFrame.Command);
Assert.IsTrue(!outFrame.Headers.Any());
Assert.IsTrue(!outFrame.Body.Any());
}
}
}
public void FrameInChunks_SuccessfullyRead()
{
string inFrame = StompCommands.Message + "\r\nH0:V0\r\ncontent-length:20\r\n\r\n12345678901234567890\0";
using (MemoryStream inStream = new NoEndChunkedMemoryStream(chunkSize: 4))
{
inStream.Write(inFrame);
inStream.Seek(0, SeekOrigin.Begin);
IStompFrameReader reader = new Stomp12FrameReader(inStream);
Frame outFrame = reader.ReadFrameAsync().Result;
Assert.AreEqual(StompCommands.Message, outFrame.Command);
Assert.AreEqual(2, outFrame.Headers.Count());
Assert.AreEqual("V0", outFrame.GetAllHeaderValues("H0").First());
Assert.AreEqual("20", outFrame.GetAllHeaderValues("content-length").First());
Assert.AreEqual("12345678901234567890", outFrame.GetBodyAsString());
}
}
public void FrameWithContentLengthHeader_BodySuccessfullyRead()
{
string inFrame1 = StompCommands.Message + "\n" + "content-length:0\n\n\0";
using (MemoryStream inStream = new MemoryStream())
{
inStream.Write(inFrame1);
inStream.Seek(0, SeekOrigin.Begin);
IStompFrameReader reader = new Stomp12FrameReader(inStream);
Frame outFrame = reader.ReadFrameAsync().Result;
Assert.AreEqual(string.Empty, outFrame.GetBodyAsString());
}
string inFrame2 = StompCommands.Receipt + "\n" + "content-length:10\n\n1234567890\0";
using (MemoryStream inStream = new MemoryStream())
{
inStream.Write(inFrame2);
inStream.Seek(0, SeekOrigin.Begin);
IStompFrameReader reader = new Stomp12FrameReader(inStream);
Frame outFrame = reader.ReadFrameAsync().Result;
Assert.AreEqual("1234567890", outFrame.GetBodyAsString());
}
string inFrame3 = StompCommands.Error + "\n" + "content-length: 4 \n\n\r\n\0\t\0";
using (MemoryStream inStream = new MemoryStream())
{
inStream.Write(inFrame3);
inStream.Seek(0, SeekOrigin.Begin);
IStompFrameReader reader = new Stomp12FrameReader(inStream);
Frame outFrame = reader.ReadFrameAsync().Result;
Assert.AreEqual("\r\n\0\t", outFrame.GetBodyAsString());
}
}
public void FrameWithHeadersAndContent_SuccessfullyRead()
{
string inFrame = StompCommands.Message + "\n" + "H0:V0\n HA :VA\nH1: V1 \nH2:V2_1\nH2:V2_2\n\n12345ABC\0";
using (MemoryStream inStream = new MemoryStream())
{
inStream.Write(inFrame);
inStream.Seek(0, SeekOrigin.Begin);
IStompFrameReader reader = new Stomp12FrameReader(inStream);
Frame outFrame = reader.ReadFrameAsync().Result;
Assert.AreEqual(StompCommands.Message, outFrame.Command);
Assert.AreEqual(5, outFrame.Headers.Count());
Assert.AreEqual("V0", outFrame.GetAllHeaderValues("H0").First());
Assert.AreEqual("VA", outFrame.GetAllHeaderValues(" HA ").First());
Assert.AreEqual(" V1 ", outFrame.GetAllHeaderValues("H1").First());
Assert.AreEqual(2, outFrame.GetAllHeaderValues("H2").Count());
Assert.IsTrue(outFrame.GetAllHeaderValues("H2").Contains("V2_1"));
Assert.IsTrue(outFrame.GetAllHeaderValues("H2").Contains("V2_1"));
Assert.AreEqual("12345ABC", outFrame.GetBodyAsString());
}
}
/// <summary>
/// Example to demonstrate STOMP transactions using the StompNet low level API.
///
/// In this example, a single message is going to be sent to a queue and it will be read from
/// the same queue.
/// </summary>
public static async Task ExampleWriterAndReader()
{
using (TcpClient tcpClient = new TcpClient(serverHostname, serverPort))
// Create a frame writer and frame reader. These classes are NOT thread safe.
// Stomp12FrameWriter and Stomp12FrameReader are NOT thread safety. They could
// wrapped into a StompSerialFrameWriter and a StompSerialFrameReader for
// serializing operations (thread-safe).
using (IStompFrameWriter writer = new Stomp12FrameWriter(tcpClient.GetStream()))
using (IStompFrameReader reader = new Stomp12FrameReader(tcpClient.GetStream()))
{
Frame inFrame;
//---------------------------------
// Write CONNECT.
//
await writer.WriteConnectAsync(virtualHost, login, passcode);
// Read CONNECTED.
// Keep reading while receiving Heartbeats.
do
{
inFrame = await reader.ReadFrameAsync();
} while (inFrame.Command == StompCommands.Heartbeat);
//Verify a CONNECTED frame was received.
if (!AssertExpectedCommandFrame(inFrame, StompCommands.Connected))
{
return;
}
Console.WriteLine("Connected");
//---------------------------------
// Write SEND command with receipt.
//
await writer.WriteSendAsync(
aQueueName,
messageContent + (" (WITH RECEIPT)."),
"myreceiptid-123");
// Read RECEIPT.
// Keep reading while receiving Heartbeats.
do
{
inFrame = await reader.ReadFrameAsync();
} while (inFrame.Command == StompCommands.Heartbeat);
//Verify a RECEIPT frame was received.
if (!AssertExpectedCommandFrame(inFrame, StompCommands.Receipt))
{
return;
}
// Process incoming RECEIPT.
// Using the incoming frame, Interpret will create a new instance of a sub-class
// of Frame depending on the Command. If the frame is a HEARTBEAT, the same frame
// will be returned. Possible sub-classes: ConnectedFrame, ErrorFrame, MessageFrame,
// ReceiptFrame.
// Interpret throws exception if the incoming frame is malformed (not standard).
ReceiptFrame rptFrame = StompInterpreter.Interpret(inFrame) as ReceiptFrame;
if (rptFrame.ReceiptId != "myreceiptid-123")
{
Console.WriteLine("ERROR: Unexpected receipt " + rptFrame.ReceiptId + ".");
return;
}
Console.WriteLine("Received matching receipt.");
//---------------------------------
// Write SUBSCRIBE.
//
string subscriptionId = new Random().Next().ToString();
await writer.WriteSubscribeAsync(aQueueName, subscriptionId, ack : StompAckValues.AckAutoValue);
// Read MESSAGE.
// Keep reading while receiving Heartbeats.
do
{
inFrame = await reader.ReadFrameAsync();
} while (inFrame.Command == StompCommands.Heartbeat);
//Verify a MESSAGE frame was received.
if (!AssertExpectedCommandFrame(inFrame, StompCommands.Message))
{
return;
}
// Process incoming RECEIPT.
MessageFrame msgFrame = StompInterpreter.Interpret(inFrame) as MessageFrame;
Console.WriteLine("Received Message:");
Console.WriteLine();
Console.WriteLine("Destination: " + msgFrame.Destination);
Console.WriteLine("ContentType: " + msgFrame.ContentType);
Console.WriteLine("ContentLength: " + msgFrame.ContentLength);
Console.WriteLine("Content:" + msgFrame.GetBodyAsString());
Console.WriteLine();
// Write DISCONNECT.
await writer.WriteDisconnectAsync();
Console.WriteLine("Disconnected.");
}
}
