public void Rmc()
{
var expected = new RMC("SN")
{
Status = Flag.Active,
Position = new Position()
{
Latitude = 49.01432,
LatitudeHemisphere = NorthSouth.North,
Longitude = 123.07771,
LongitudeHemisphere = EastWest.West,
},
SOG = 0.111,
TMG = 200.928,
// missing Magnetic Variation
// missing Magnetic Variation sign
// missing date and time
};
var actual = new RMC("SN", ",A,4900.8592,N,12304.6626,W,0.111,200.928,,0.000,".Split(','));
Assert.InRange(actual.Position.Latitude, expected.Position.Latitude - .00001, expected.Position.Latitude + .00001);
Assert.Equal(expected.ToString(), actual.ToString());
actual = (RMC)MessageBase.Parse("$ECRMC,205351,A,4857.077,N,12303.894,W,4.389,182.020,030416,16.445,E*40");
Assert.InRange(actual.MagneticVariation, 16.444999, 16.445001);
// A different real life example. Time has two or three decimals, magnetic variation fields are missing and this is NMEA 2.3, with an extra field D or A.
actual = (RMC)MessageBase.Parse("$GPRMC,222248.00,A,4857.49084,N,12302.35656,W,3.018,114.14,090416,,,D*7A");
Assert.NotNull(actual);
}
public void ShouldBeAbleToReadAllCommandsInFileWithoutException()
{
string line;
// Read the file and display it line by line.
System.IO.StreamReader file = new System.IO.StreamReader(@"..\..\..\doc\autopilot-sample.txt");
int linenumber = 0;
while ((line = file.ReadLine()) != null)
{
linenumber++;
MessageBase message;
if (line != @"$PSMDOV,1" && // Shipmodul overflow
!line.StartsWith("$,") && // nonsense I haven't figured out yet
!line.StartsWith("!AI") && // AIS stuff
!line.StartsWith("!") // weed out other garbage
)
{
message = MessageBase.Parse(line);
}
}
file.Close();
}
public MessageReader(string hostname, string exchange)
{
var factory = new ConnectionFactory()
{
HostName = hostname
};
_connection = factory.CreateConnection();
_model = _connection.CreateModel();
_model.ExchangeDeclare(exchange, "fanout");
var queueName = _model.QueueDeclare().QueueName;
_model.QueueBind(queue: queueName, exchange: exchange, routingKey: string.Empty);
_consumer = new EventingBasicConsumer(_model);
_consumer.Received += (m, ea) =>
{
var line = Encoding.UTF8.GetString(ea.Body);
try
{
var message = MessageBase.Parse(line);
OnMessage(message, ea.BasicProperties.Timestamp.DateTime());
}
catch (FormatException x)
{
Trace.WriteLine("Discarding message that can't be parsed. Exception was:");
Trace.WriteLine(x);
}
};
_model.BasicConsume(queue: queueName, noAck: true, consumer: _consumer);
}
public void Hdm()
{
var expected = new HDM("AP")
{
Heading = new MagneticMessageCompassValue(153.4),
};
var actual = (HDM)MessageBase.Parse("$APHDM,153.40,M*00");
Assert.Equal(expected.Heading.Value, actual.Heading.Value);
Assert.Equal(expected.Heading.IsMagnetic, actual.Heading.IsMagnetic);
Assert.Equal(expected.GetType(), actual.GetType());
Assert.Equal(expected.ToString(), actual.ToString());
Assert.InRange(actual.Heading.Value, 153.399999, 153.400001);
}
public void Gga()
{
var actual = MessageBase.Parse("$GPGGA,222247.00,4857.49115,N,12302.35773,W,2,12,0.67,-3.8,M,-17.7,M,,0000*47");
}
public void Gll()
{
var actual = MessageBase.Parse("$GPGLL,4857.49115,N,12302.35773,W,222247.00,A,D*7C");
}
public void Gbs()
{
var actual = MessageBase.Parse("$GPGBS,222247.00,2.0,1.5,2.7,,,,*41");
}
static int Main(string[] args)
{
var commandName = Path.GetFileNameWithoutExtension(Assembly.GetExecutingAssembly().CodeBase);
if (args.Length != 1)
{
Console.Error.WriteLine(@"
This program prints all messages coming in on an exchange to the console.
Messages that we can interpret are yelolow, others in red.
Usage: {0} exchange
Where:
exchange is the name of a RabbitMQ exchange.
", commandName);
Console.ReadKey();
return(-1);
}
var exchange = args[0];
var factory = new ConnectionFactory()
{
HostName = "localhost"
};
using (var connection = factory.CreateConnection())
using (var model = connection.CreateModel())
{
model.ExchangeDeclare(exchange, "fanout");
var queueName = model.QueueDeclare().QueueName;
model.QueueBind(queue: queueName, exchange: exchange, routingKey: string.Empty);
var consumer = new EventingBasicConsumer(model);
consumer.Received += (m, ea) =>
{
var line = Encoding.UTF8.GetString(ea.Body);
try
{
var message = MessageBase.Parse(line);
if (message is UnknownMessage)
{
Console.ForegroundColor = ConsoleColor.Magenta;
}
else
{
Console.ForegroundColor = ConsoleColor.Yellow;
}
Console.WriteLine(message.ToString());
}
catch (FormatException)
{ // just skip non-NMEA messages, such as AIS
if (string.IsNullOrWhiteSpace(line) || line[0] == '$')
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine(line);
}
}
};
model.BasicConsume(queue: queueName, noAck: true, consumer: consumer);
Console.ReadLine();
return(0);
}
}
