/// <summary>
/// Encode Network Message Header
/// </summary>
/// <param name="encoder"></param>
private void EncodeNetworkMessageHeader(BinaryEncoder encoder)
{
// byte[0..3] UADPVersion value 1 (for now)
// byte[4..7] UADPFlags
encoder.WriteByte("VersionFlags", (byte)(UADPVersion | (byte)UADPFlags));
if ((UADPFlags & UADPFlagsEncodingMask.ExtendedFlags1) != 0)
{
encoder.WriteByte("ExtendedFlags1", (byte)ExtendedFlags1);
}
if ((ExtendedFlags1 & ExtendedFlags1EncodingMask.ExtendedFlags2) != 0)
{
encoder.WriteByte("ExtendedFlags2", (byte)ExtendedFlags2);
}
if ((NetworkMessageContentMask & UadpNetworkMessageContentMask.PublisherId) != 0)
{
PublisherIdTypeEncodingMask publisherIdType = (PublisherIdTypeEncodingMask)((byte)ExtendedFlags1 & kPublishedIdTypeUsedBits);
switch (publisherIdType)
{
case PublisherIdTypeEncodingMask.Byte:
encoder.WriteByte("PublisherId", Convert.ToByte(PublisherId));
break;
case PublisherIdTypeEncodingMask.UInt16:
encoder.WriteUInt16("PublisherId", Convert.ToUInt16(PublisherId));
break;
case PublisherIdTypeEncodingMask.UInt32:
encoder.WriteUInt32("PublisherId", Convert.ToUInt32(PublisherId));
break;
case PublisherIdTypeEncodingMask.UInt64:
encoder.WriteUInt64("PublisherId", Convert.ToUInt64(PublisherId));
break;
case PublisherIdTypeEncodingMask.String:
encoder.WriteString("PublisherId", Convert.ToString(PublisherId));
break;
default:
// Reserved - no type provided
break;
}
}
if ((NetworkMessageContentMask & UadpNetworkMessageContentMask.DataSetClassId) != 0)
{
encoder.WriteGuid("DataSetClassId", DataSetClassId);
}
}
/// <summary>
/// Encode Network Message Header
/// </summary>
/// <param name="decoder"></param>
private void DecodeNetworkMessageHeader(BinaryDecoder decoder)
{
// byte[0..3] UADPVersion value 1 (for now)
// byte[4..7] UADPFlags
byte versionFlags = decoder.ReadByte("VersionFlags");
UADPVersion = (byte)(versionFlags & kUADPVersionBitMask);
// Decode UADPFlags
UADPFlags = (UADPFlagsEncodingMask)(versionFlags & 0xF0);
// Decode the ExtendedFlags1
if ((UADPFlags & UADPFlagsEncodingMask.ExtendedFlags1) != 0)
{
ExtendedFlags1 = (ExtendedFlags1EncodingMask)decoder.ReadByte("ExtendedFlags1");
}
// Decode the ExtendedFlags2
if ((ExtendedFlags1 & ExtendedFlags1EncodingMask.ExtendedFlags2) != 0)
{
ExtendedFlags2 = (ExtendedFlags2EncodingMask)decoder.ReadByte("ExtendedFlags2");
}
// calculate UADPNetworkMessageType
if ((ExtendedFlags2 & ExtendedFlags2EncodingMask.NetworkMessageWithDiscoveryRequest) != 0)
{
m_uadpNetworkMessageType = UADPNetworkMessageType.DiscoveryRequest;
}
else if ((ExtendedFlags2 & ExtendedFlags2EncodingMask.NetworkMessageWithDiscoveryResponse) != 0)
{
m_uadpNetworkMessageType = UADPNetworkMessageType.DiscoveryResponse;
}
else
{
m_uadpNetworkMessageType = UADPNetworkMessageType.DataSetMessage;
}
// Decode PublisherId
if ((UADPFlags & UADPFlagsEncodingMask.PublisherId) != 0)
{
PublisherIdTypeEncodingMask publishedIdTypeType = (PublisherIdTypeEncodingMask)((byte)ExtendedFlags1 & kPublishedIdTypeUsedBits);
switch (publishedIdTypeType)
{
case PublisherIdTypeEncodingMask.UInt16:
m_publisherId = decoder.ReadUInt16("PublisherId");
break;
case PublisherIdTypeEncodingMask.UInt32:
m_publisherId = decoder.ReadUInt32("PublisherId");
break;
case PublisherIdTypeEncodingMask.UInt64:
m_publisherId = decoder.ReadUInt64("PublisherId");
break;
case PublisherIdTypeEncodingMask.String:
m_publisherId = decoder.ReadString("PublisherId");
break;
case PublisherIdTypeEncodingMask.Byte:
default:
// 000 The PublisherId is of DataType Byte
// This is the default value if ExtendedFlags1 is omitted
m_publisherId = decoder.ReadByte("PublisherId");
break;
}
}
// Decode DataSetClassId
if ((ExtendedFlags1 & ExtendedFlags1EncodingMask.DataSetClassId) != 0)
{
DataSetClassId = decoder.ReadGuid("DataSetClassId");
}
}