public Receiver(Port source, Timer timer, string portString)
{
this.source = source;
this.timer = timer;
string[] details = portString.Split(':');
IEnumerable<Stream> streams = GetStreams(source, details);
IEnumerable<Stream> timeStreams = from stream in streams
where stream.Name == "TIME" || stream.Name == "TIMER"
select stream;
if (timeStreams.Count() > 1) throw new ArgumentException(string.Format("More than one timestamp stream was found in '{0}'.", source.Name));
this.timeStream = timeStreams.SingleOrDefault();
this.hasTimer = timeStream != null && timeStream.Name == "TIMER";
this.portStreams = streams.Except(Enumerables.Create(timeStream)).ToArray();
// TODO: Try and make this stateless
if (HasTimer) timer.IsUpdated = false;
this.reader = new Thread(Read);
this.reader.Priority = ThreadPriority.AboveNormal;
this.reader.Start();
}
static IEnumerable<Stream> ParseRange(Port port, string range)
{
string[] details = range.Split('-');
switch (details.Length)
{
case 1: return Enumerables.Create(ParseStream(port, details[0]));
case 2: return from path in Path.Range(new Path(details[0]), new Path(details[1]))
select new Stream(path);
default: throw new ArgumentException("range");
}
}
static Stream ParseStream(Port port, string streamString)
{
string[] details = streamString.Split('=');
switch (details.Length)
{
case 1:
Path path = new Path(details[0]);
string name = port.GetName(path);
return name == null ? new Stream(path) : new Stream(path, name);
case 2: return new Stream(new Path(details[0]), details[1]);
default: throw new ArgumentException("streamString");
}
}
static IEnumerable<Stream> GetStreams(Port port, string[] portString)
{
switch (portString.Length)
{
case 1:
return
(
from path in port.ValidPaths
let name = port.GetName(path)
select name == null ? new Stream(path) : new Stream(path, name)
)
.ToArray();
case 2:
return
(
from range in portString[1].Split(',')
from stream in ParseRange(port, range)
select stream
)
.ToArray();
default: throw new ArgumentException("portString");
}
}
