/// <summary>
/// Initializes a new instance of the <see cref="Msg"/> class with a subject, reply, header, and data.
/// </summary>
/// <param name="subject">Subject of the message.</param>
/// <param name="reply">A reply subject, or <c>null</c>.</param>
/// <param name="header">Message headers or <c>null</c>.</param>
/// <param name="data">A byte array containing the message payload.</param>
public Msg(string subject, string reply, MsgHeader header, byte[] data)
{
if (string.IsNullOrWhiteSpace(subject))
{
throw new ArgumentException("Subject cannot be null, empty, or whitespace.", nameof(subject));
}
this.Subject = subject;
this.Reply = reply;
this.Header = header;
this.Data = data;
}
/// <summary>
/// Copies the entries from an existing MsgHeader instance to a
/// new MsgHeader instance.
/// </summary>
/// <remarks>
/// The header cannot be empty or contain invalid fields.
/// </remarks>
/// <param name="header">the NATS message header to copy.</param>
public MsgHeader(MsgHeader header)
{
if (header == null)
{
throw new ArgumentNullException("header");
}
if (header.Count == 0)
{
throw new ArgumentException("header", "header cannot be empty");
}
foreach (string s in header.Keys)
{
nvc[s] = header[s];
}
}
internal Msg(MsgArg arg, Subscription s, byte[] payload, long totalLen)
{
subject = arg.subject;
reply = arg.reply;
sub = s;
if (arg.hdr > 0)
{
header = new MsgHeader(payload, arg.hdr);
}
// make a deep copy of the bytes for this message.
if (totalLen > 0)
{
data = new byte[totalLen];
Array.Copy(payload, (int)arg.hdr, data, 0, (int)(totalLen - arg.hdr));
}
else
{
data = Empty;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="Msg"/> class with a subject, header, and data.
/// </summary>
/// <param name="subject">Subject of the message.</param>
/// <param name="header">Message headers or <c>null</c>.</param>
/// <param name="data">A byte array containing the message payload.</param>
public Msg(string subject, MsgHeader header, byte[] data)
: this(subject, null, header, data)
{
}