/// <summary>
/// Updates the specified context.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="decoder">The decoder.</param>
/// <param name="attributesToLoad">The attributes to load.</param>
public override void Update(ISystemContext context, BinaryDecoder decoder, AttributesToSave attributesToLoad)
{
base.Update(context, decoder, attributesToLoad);
if ((attributesToLoad & AttributesToSave.DataTypeDefinition) != 0)
{
DataTypeDefinition = decoder.ReadExtensionObject(null);
}
}
/// <summary>
/// Converts a local value to a remote value.
/// </summary>
/// <param name="srcValue">The local value.</param>
/// <param name="srcType">The data type of the local value.</param>
/// <param name="dstType">The data type of the remote value.</param>
/// <returns>The remote value.</returns>
private object ConvertLocalToRemote(object srcValue, BuiltInType srcType, BuiltInType dstType)
{
// must determine the type from the source if the containing array is a variant.
if (srcType == BuiltInType.Variant)
{
TypeInfo typeInfo = TypeInfo.Construct(srcValue);
srcType = typeInfo.BuiltInType;
}
// no conversion by default.
object dstValue = srcValue;
// apply different conversions depending on the data type.
switch (dstType)
{
case BuiltInType.Guid:
{
dstValue = new Uuid((string)srcValue);
break;
}
case BuiltInType.XmlElement:
{
XmlDocument document = new XmlDocument();
document.InnerXml = (string)srcValue;
dstValue = document.DocumentElement;
break;
}
case BuiltInType.NodeId:
{
dstValue = GetRemoteNodeId((string)srcValue);
break;
}
case BuiltInType.ExpandedNodeId:
{
ExpandedNodeId nodeId = ExpandedNodeId.Parse((string)srcValue);
dstValue = GetRemoteExpandedNodeId(nodeId);
break;
}
case BuiltInType.QualifiedName:
{
dstValue = GetRemoteBrowseName((string)srcValue);
break;
}
case BuiltInType.LocalizedText:
{
dstValue = new LocalizedText((string)srcValue);
break;
}
case BuiltInType.StatusCode:
{
dstValue = new StatusCode((uint)srcValue);
break;
}
case BuiltInType.ExtensionObject:
{
BinaryDecoder decoder = new BinaryDecoder((byte[])srcValue, m_localMessageContext);
dstValue = decoder.ReadExtensionObject(null);
decoder.Close();
break;
}
default:
{
if (dstType != srcType && dstType != BuiltInType.Variant && dstType != BuiltInType.Null)
{
throw ComUtils.CreateComException(ResultIds.E_BADTYPE);
}
break;
}
}
// all done.
return(dstValue);
}
/// <summary>
/// Decode a scalar type
/// </summary>
/// <param name="binaryDecoder"></param>
/// <param name="builtInType"></param>
/// <returns>The decoded object</returns>
private object DecodeRawScalar(BinaryDecoder binaryDecoder, byte builtInType)
{
switch ((BuiltInType)builtInType)
{
case BuiltInType.Boolean:
return(binaryDecoder.ReadBoolean(null));
case BuiltInType.SByte:
return(binaryDecoder.ReadSByte(null));
case BuiltInType.Byte:
return(binaryDecoder.ReadByte(null));
case BuiltInType.Int16:
return(binaryDecoder.ReadInt16(null));
case BuiltInType.UInt16:
return(binaryDecoder.ReadUInt16(null));
case BuiltInType.Int32:
return(binaryDecoder.ReadInt32(null));
case BuiltInType.UInt32:
return(binaryDecoder.ReadUInt32(null));
case BuiltInType.Int64:
return(binaryDecoder.ReadInt64(null));
case BuiltInType.UInt64:
return(binaryDecoder.ReadUInt64(null));
case BuiltInType.Float:
return(binaryDecoder.ReadFloat(null));
case BuiltInType.Double:
return(binaryDecoder.ReadDouble(null));
case BuiltInType.String:
return(binaryDecoder.ReadString(null));
case BuiltInType.DateTime:
return(binaryDecoder.ReadDateTime(null));
case BuiltInType.Guid:
return(binaryDecoder.ReadGuid(null));
case BuiltInType.ByteString:
return(binaryDecoder.ReadByteString(null));
case BuiltInType.XmlElement:
return(binaryDecoder.ReadXmlElement(null));
case BuiltInType.NodeId:
return(binaryDecoder.ReadNodeId(null));
case BuiltInType.ExpandedNodeId:
return(binaryDecoder.ReadExpandedNodeId(null));
case BuiltInType.StatusCode:
return(binaryDecoder.ReadStatusCode(null));
case BuiltInType.QualifiedName:
return(binaryDecoder.ReadQualifiedName(null));
case BuiltInType.LocalizedText:
return(binaryDecoder.ReadLocalizedText(null));
case BuiltInType.DataValue:
return(binaryDecoder.ReadDataValue(null));
case BuiltInType.Enumeration:
return(binaryDecoder.ReadInt32(null));
case BuiltInType.Variant:
return(binaryDecoder.ReadVariant(null));
case BuiltInType.ExtensionObject:
return(binaryDecoder.ReadExtensionObject(null));
default:
return(null);
}
}
/// <summary>
/// Converts a local value to a remote value.
/// </summary>
/// <param name="srcValue">The local value.</param>
/// <param name="srcType">The data type of the local value.</param>
/// <param name="dstType">The data type of the remote value.</param>
/// <returns>The remote value.</returns>
private object ConvertLocalToRemote(object srcValue, BuiltInType srcType, BuiltInType dstType)
{
// must determine the type from the source if the containing array is a variant.
if (srcType == BuiltInType.Variant)
{
TypeInfo typeInfo = TypeInfo.Construct(srcValue);
srcType = typeInfo.BuiltInType;
}
// no conversion by default.
object dstValue = srcValue;
// apply different conversions depending on the data type.
switch (dstType)
{
case BuiltInType.Guid:
{
dstValue = new Uuid((string)srcValue);
break;
}
case BuiltInType.XmlElement:
{
XmlDocument document = new XmlDocument();
document.InnerXml = (string)srcValue;
dstValue = document.DocumentElement;
break;
}
case BuiltInType.NodeId:
{
dstValue = GetRemoteNodeId((string)srcValue);
break;
}
case BuiltInType.ExpandedNodeId:
{
ExpandedNodeId nodeId = ExpandedNodeId.Parse((string)srcValue);
dstValue = GetRemoteExpandedNodeId(nodeId);
break;
}
case BuiltInType.QualifiedName:
{
dstValue = GetRemoteBrowseName((string)srcValue);
break;
}
case BuiltInType.LocalizedText:
{
dstValue = new LocalizedText((string)srcValue);
break;
}
case BuiltInType.StatusCode:
{
dstValue = new StatusCode((uint)srcValue);
break;
}
case BuiltInType.ExtensionObject:
{
BinaryDecoder decoder = new BinaryDecoder((byte[])srcValue, m_localMessageContext);
dstValue = decoder.ReadExtensionObject(null);
decoder.Close();
break;
}
default:
{
if (dstType != srcType && dstType != BuiltInType.Variant && dstType != BuiltInType.Null)
{
throw ComUtils.CreateComException(ResultIds.E_BADTYPE);
}
break;
}
}
// all done.
return dstValue;
}
