public override void Decode(Stream inputStream)
{
if (inputStream == null || !inputStream.CanRead)
{
return;
}
// 1. Content
Content = SimpleArray <byte> .Decode(inputStream, BaseType.ReadByte);
// 2. Path
Path = String.Decode(inputStream);
// 3. Timestamp
long?readTime = BaseType.ReadInt64(inputStream);
if (readTime != null)
{
Time = readTime.Value;
}
// 4. File type
FileType = String.Decode(inputStream);
// 5. Name (is not used via OPC UA but can be used for logging etc.)
Name = System.IO.Path.GetFileName(Path.Value);
}
public static StructureField Decode(Stream inputStream)
{
if (inputStream == null || !inputStream.CanRead)
{
return(null);
}
StructureField instance = new StructureField();
instance.Name = String.Decode(inputStream);
instance.Description = LocalizedText.Decode(inputStream);
instance.DataType = NodeID.Decode(inputStream);
int?readInt32 = BaseType.ReadInt32(inputStream);
if (readInt32 != null)
{
instance.ValueRank = readInt32.Value;
}
instance.ArrayDimension = SimpleArray <uint> .Decode(inputStream, BaseType.ReadUInt32);
uint?readUInt32 = BaseType.ReadUInt32(inputStream);
if (readUInt32 != null)
{
instance.MaxStringLength = readUInt32.Value;
}
instance.IsOptional = inputStream.ReadByte() != 0;
return(instance);
}
public static ChunkedMessage Decode(Stream inputStream)
{
if (inputStream == null || !inputStream.CanRead)
{
return(null);
}
ChunkedMessage instance = new ChunkedMessage();
instance.PayloadHeader = ChunkedPayloadHeader.Decode(inputStream);
ushort?seqValue = BaseType.ReadUInt16(inputStream);
if (seqValue == null)
{
return(null);
}
instance.MessageSequenceNumber = seqValue.Value;
uint?offSetValue = BaseType.ReadUInt32(inputStream);
if (offSetValue == null)
{
return(null);
}
instance.ChunkOffset = offSetValue.Value;
uint?sizeValue = BaseType.ReadUInt32(inputStream);
if (sizeValue == null)
{
return(null);
}
instance.TotalSize = sizeValue.Value;
instance.ChunkData = SimpleArray <byte> .Decode(inputStream, BaseType.ReadByte);
return(instance);
}
public static DataSetPayloadHeader Decode(Stream inputStream)
{
if (inputStream == null || !inputStream.CanRead)
{
return(null);
}
DataSetPayloadHeader instance = new DataSetPayloadHeader();
instance.Count = (byte)inputStream.ReadByte();
instance.DataSetWriterID = SimpleArray <ushort> .Decode(inputStream, BaseType.ReadUInt16, instance.Count);
return(instance);
}
public static FieldMetaData Decode(Stream inputStream, EncodingOptions options)
{
FieldMetaData instance = new FieldMetaData(options);
// 1. Name
instance.Name = String.Decode(inputStream);
// 2. Description
instance.Description = LocalizedText.Decode(inputStream);
// 3. Field Flags
instance.Flags = DataSetFieldFlags.Decode(inputStream, options);
// 4. Built-in Type
instance.Type = (BuiltinType)inputStream.ReadByte();
// 5. DataType
instance.DataType = NodeID.Decode(inputStream);
// 6. Value Rank
int?valueRank = BaseType.ReadInt32(inputStream);
if (valueRank.HasValue)
{
instance.ValueRank = valueRank.Value;
}
// 7. Array Dimension
instance.ArrayDimension = SimpleArray <uint> .Decode(inputStream, BaseType.ReadUInt32);
// 8. Size
uint?readUInt32 = BaseType.ReadUInt32(inputStream);
if (readUInt32 != null)
{
instance.MaxStringLength = readUInt32.Value;
}
// 9. Field ID
byte[] guidAsByte = Common.ReadBytes(inputStream, 16);
if (guidAsByte != null && guidAsByte.Length == 16)
{
instance.FieldID = new Guid(guidAsByte);
}
// 10. Properties
instance.Properties = ParseProperties(inputStream);
return(instance);
}
public static DataSet Decode(Stream inputStream)
{
DataSet instance = new DataSet();
instance.MessageCount = (byte)inputStream.ReadByte();
instance.DataSetWriterID = SimpleArray <ushort> .Decode(inputStream, BaseType.ReadUInt16);
instance.Size = SimpleArray <ushort> .Decode(inputStream, BaseType.ReadUInt16);
instance.MessageType = (MessageTypeEnum)inputStream.ReadByte();
if (instance.MessageType == MessageTypeEnum.MetaFrame ||
instance.MessageType == MessageTypeEnum.KeyFrame ||
instance.MessageType == MessageTypeEnum.DeltaFrame)
{
instance.EncodingFlags = (byte)inputStream.ReadByte();
ushort?sequenceNumber = BaseType.ReadUInt16(inputStream);
if (!sequenceNumber.HasValue)
{
return(null);
}
instance.MessageSequenceNumber = sequenceNumber.Value;
uint?major = BaseType.ReadUInt32(inputStream);
if (!major.HasValue)
{
return(null);
}
instance.MajorVersion = major.Value;
uint?minor = BaseType.ReadUInt32(inputStream);
if (!minor.HasValue)
{
return(null);
}
instance.MinorVersion = minor.Value;
}
return(instance);
}