/// <summary>
/// Creates a new instance of <see cref="NbNsNodeStatusResponseResourceRecord"/> with the given <see cref="nodeNames"/> and <see cref="NbNsStatistics"/>
/// </summary>
/// <param name="rrName"><see cref="NbName"/> for this <see cref="NbNsNodeStatusResponseResourceRecord"/></param>
/// <param name="nodeNames">List of <see cref="NbNsNodeName"/>s for this <see cref="NbNsNodeStatusResponseResourceRecord"/></param>
/// <param name="statistics"><see cref="NbNsStatistics"/> for this <see cref="NbNsNodeStatusResponseResourceRecord"/></param>
public NbNsNodeStatusResponseResourceRecord(NbName rrName, IEnumerable <NbNsNodeName> nodeNames, NbNsStatistics statistics)
: base(RrTypeValue.NbStat, RrClassValue.In, 0)
{
RrName = rrName;
NodeNames = new List <NbNsNodeName>(nodeNames);
Statistics = statistics;
}
/// <summary>
/// Tries to parse a <see cref="NbNsQuestionEntry"/> from a buffer of bytes
/// </summary>
/// <param name="buffer">Byte array containing the NbNsQuestionEntry</param>
/// <param name="offset">Zero based offset in the buffer where the NbNsQuestionEntry starts</param>
/// <param name="questionEntry">Parsed NbNsQuestionEntry if successful, else null</param>
/// <returns><c>true</c> if parsing was successful, else <c>false</c></returns>
public static bool TryParse(byte[] buffer, int offset, out NbNsQuestionEntry questionEntry)
{
questionEntry = null;
NbName questionName;
if (!NbName.TryParse(buffer, offset, out questionName))
{
return(false);
}
if (buffer.Length < offset + questionName.Length + 4)
{
return(false);
}
var questionType = (QuestionTypeSpecifier)BufferToUInt16(buffer, offset + questionName.Length);
if (!Enum.IsDefined(typeof(QuestionTypeSpecifier), questionType))
{
return(false);
}
var questionClass = (QuestionClassSpecifier)BufferToUInt16(buffer, offset + questionName.Length + 2);
if (!Enum.IsDefined(typeof(QuestionClassSpecifier), questionClass))
{
return(false);
}
questionEntry = new NbNsQuestionEntry(questionName, questionType);
return(true);
}
/// <summary>
/// Tries to parse all the fields of a ResourceRecord except for the RDATA field
/// </summary>
/// <param name="buffer">Byte array containing the Resource Record</param>
/// <param name="offset">Zero based offset in the buffer where the Resource Record starts</param>
/// <returns><c>true</c> if parsing was successful, else <c>false</c></returns>
/// <remarks>
/// This method is called from derived classes in their TryParse method to parse the standard fields of
/// every Resource Record. Only the RDATA field is different for each Resource Record and is therefore
/// parsed by the specific TryParse methods of derived classes.
/// </remarks>
protected bool TryParse(byte[] buffer, int offset)
{
if (!NbName.TryParse(buffer, offset, out _rrName))
{
return(false);
}
var rrNameLength = _rrName.Length;
if (buffer.Length < offset + rrNameLength + 2 + 2 + 4 + 2)
{
return(false);
}
RrType = (RrTypeValue)BufferToUInt16(buffer, offset + rrNameLength + OFFSET_RR_TYPE);
RrClass = (RrClassValue)BufferToUInt16(buffer, offset + rrNameLength + OFFSET_RR_CLASS);
Ttl = BufferToUInt32(buffer, offset + rrNameLength + OFFSET_TTL);
RdLength = BufferToUInt16(buffer, offset + rrNameLength + OFFSET_RD_LENGTH);
return(buffer.Length >= offset + rrNameLength + 2 + 2 + 4 + 2 + RdLength);
}
/// <summary>
/// Creates a new instance of <see cref="NbNsQuestionEntry"/> based on the given <see cref="questionName"/> and <see cref="questionType"/>
/// </summary>
/// <param name="questionName"><see cref="NbName"/> used for this object</param>
/// <param name="questionType"><see cref="QuestionTypeSpecifier"/> used for this object</param>
/// <remarks>
/// <see cref="_questionClass"/> is always set to <see cref="QuestionClassSpecifier.In"/> as per NbNs spec.
/// </remarks>
public NbNsQuestionEntry(NbName questionName, QuestionTypeSpecifier questionType)
{
_questionName = questionName;
_questionType = questionType;
_questionClass = QuestionClassSpecifier.In;
}
