/// <summary>
/// The constructor
/// </summary>
/// <param name="mType">The message type</param>
/// <param name="mCode">The message code</param>
/// <param name="id">The message Id</param>
public CoAPRequest(byte mType, byte mCode, UInt16 id)
{
if (mType != CoAPMessageType.CON && mType != CoAPMessageType.NON)
{
throw new ArgumentException("A request message must be of type CON or NON");
}
if (!CoAPMessageCode.DoesMessageCodeRepresentARequest(mCode))
{
throw new ArgumentException("The message code is not allowed for a request message");
}
this.Version = new CoAPVersion();
this.MessageType = new CoAPMessageType();
this.MessageType.Value = mType;
this.Code = new CoAPMessageCode();
if (!this.Code.IsValid(mCode))
{
throw new ArgumentException("Invalid message code in request");
}
this.Code.Value = mCode;
this.ID = new CoAPMessageID(id);
this.Options = new CoAPHeaderOptions();
}
/// <summary>
/// Try to check if the message code represents a request code
/// </summary>
/// <param name="data">The data stream to parse</param>
/// <returns>true if message code found and represents a request</returns>
public static bool PeekIfMessageCodeIsRequestCode(byte[] data)
{
if (data == null || data.Length < AbstractCoAPMessage.HEADER_LENGTH)
{
throw new ArgumentNullException("Invalid byte stream to parse");
}
byte mCode = data[1];
CoAPMessageCode msgCode = new CoAPMessageCode();
return(msgCode.IsValid(data[1]) && CoAPMessageCode.DoesMessageCodeRepresentARequest(data[1]));
}