public IPacket CreatePacket(PacketDefinition definition, IFieldReader reader)
{
IPacket packet;
//what we create varies by what specific definition they're looking for
if (definition.TypeName == m_MetricPacketType)
{
//metrics can't be created directly - they're an abstract class.
throw new ArgumentOutOfRangeException(nameof(definition), definition.TypeName, "Metric objects can't be created, only derived classes can.");
}
if (definition.TypeName == m_SampledMetricPacketType)
{
//sampled metrics can't be created directly - they're an abstract class.
throw new ArgumentOutOfRangeException(nameof(definition), definition.TypeName, "Sampled Metric objects can't be created, only derived classes can.");
}
if (definition.TypeName == m_EventMetricPacketType)
{
packet = new EventMetricPacket(m_Session);
}
else if (definition.TypeName == m_CustomSampledMetricPacketType)
{
packet = new CustomSampledMetricPacket(m_Session);
}
else
{
//crap, we don't know what to do here.
throw new ArgumentOutOfRangeException(nameof(definition), definition.TypeName, "This packet factory doesn't undersatnd how to create packets for the provided type.");
}
//this feels a little crazy, but you have to do your own read call here - we aren't just creating the packet
//object, we actually have to make the standard call to have it read data...
definition.ReadFields(packet, reader);
return(packet);
}
/// <summary>
/// Determines if the provided object is identical to this object.
/// </summary>
/// <param name="other">The object to compare this object to</param>
/// <returns>True if the objects represent the same data.</returns>
public bool Equals(EventMetricPacket other)
{
//We're really just a type cast, refer to our base object
return(base.Equals(other));
}
/// <summary>
/// Compare this event metric packet to another to determine sort order
/// </summary>
/// <param name="other"></param>
/// <returns></returns>
public int CompareTo(EventMetricPacket other)
{
//we just gateway to our base object.
return(base.CompareTo(other));
}