internal CtfTraceDescriptor(CtfPropertyBag bag, ICtfStructDescriptor packetHeader)
{
Debug.Assert(bag != null);
// According to CTF specification 1.8.2 section C.Examples."Minimal Examples", the packetHeader
// isn't required if the entire trace consists of a single packet - so no null check here.
// According to CTF specification 1.8.2 section C.Examples."Minimal Examples", the fields
// "major", "minor", and "byte_order" are required.
if (!bag.ContainsKey("major"))
{
throw new ArgumentException("Trace declaration does not contain 'major' field.");
}
if (!bag.ContainsKey("minor"))
{
throw new ArgumentException("Trace declaration does not contain 'major' field.");
}
if (!bag.ContainsKey("byte_order"))
{
throw new ArgumentException("Trace declaration does not contains 'byte_order' field.");
}
this.Major = bag.GetShort("major");
this.Minor = bag.GetShort("minor");
this.ByteOrder = bag.GetString("byte_order").Replace("\"", string.Empty);
Guid id = Guid.Empty;
if (bag.TryGetString("uuid", out string uuid))
{
uuid = uuid.Replace("\"", string.Empty);
if (!Guid.TryParse(uuid, out id))
{
throw new ArgumentException($"Unable to parse the uuid value: {bag.GetString("uuid")}.");
}
}
this.Uuid = id;
this.PacketHeader = packetHeader;
}
private static EncodingTypes GetEncoding(CtfPropertyBag bag)
{
Debug.Assert(bag != null);
if (!bag.TryGetString("encoding", out string encoding))
{
// strings default to UTF-8 encoding to specification 1.82 section 4.2.5
return(EncodingTypes.Utf8);
}
if (StringComparer.InvariantCulture.Equals(encoding, "UTF8"))
{
return(EncodingTypes.Utf8);
}
if (StringComparer.InvariantCulture.Equals(encoding, "ASCII"))
{
return(EncodingTypes.Ascii);
}
return(EncodingTypes.Invalid);
}
