/// <summary>
/// Updates the attributes from the stream.
/// </summary>
/// <param name="context">The context for the system being accessed.</param>
/// <param name="decoder">The decoder wrapping the stream to read.</param>
public override void Update(ISystemContext context, XmlDecoder decoder)
{
base.Update(context, decoder);
decoder.PushNamespace(Namespaces.OpcUaXsd);
if (decoder.Peek("ReferenceTypeId"))
{
ReferenceTypeId = decoder.ReadNodeId("ReferenceTypeId");
}
if (decoder.Peek("TypeDefinitionId"))
{
TypeDefinitionId = decoder.ReadNodeId("TypeDefinitionId");
}
if (decoder.Peek("ModellingRuleId"))
{
ModellingRuleId = decoder.ReadNodeId("ModellingRuleId");
}
if (decoder.Peek("NumericId"))
{
NumericId = decoder.ReadUInt32("NumericId");
}
decoder.PopNamespace();
}
/// <summary>
/// Updates the attributes from the stream.
/// </summary>
/// <param name="context">The context for the system being accessed.</param>
/// <param name="decoder">The decoder wrapping the stream to read.</param>
public override void Update(ISystemContext context, XmlDecoder decoder)
{
base.Update(context, decoder);
decoder.PushNamespace(Namespaces.OpcUaXsd);
if (decoder.Peek("Executable"))
{
Executable = decoder.ReadBoolean("Executable");
}
if (decoder.Peek("UserExecutable"))
{
UserExecutable = decoder.ReadBoolean("UserExecutable");
}
decoder.PopNamespace();
}
/// <summary>
/// Updates the attributes from the stream.
/// </summary>
/// <param name="context">The context for the system being accessed.</param>
/// <param name="decoder">The decoder wrapping the stream to read.</param>
public override void Update(ISystemContext context, XmlDecoder decoder)
{
base.Update(context, decoder);
decoder.PushNamespace(Namespaces.OpcUaXsd);
if (decoder.Peek("Value"))
{
WrappedValue = decoder.ReadVariant("Value");
}
if (decoder.Peek("DataType"))
{
DataType = decoder.ReadNodeId("DataType");
}
if (decoder.Peek("ValueRank"))
{
ValueRank = decoder.ReadInt32("ValueRank");
}
if (decoder.Peek("ArrayDimensions"))
{
ArrayDimensions = BaseVariableState.ArrayDimensionsFromXml(decoder.ReadString("ArrayDimensions"));
}
decoder.PopNamespace();
}
/// <summary>
/// Updates the attributes from the stream.
/// </summary>
/// <param name="context">The context for the system being accessed.</param>
/// <param name="decoder">The decoder wrapping the stream to read.</param>
public override void Update(ISystemContext context, XmlDecoder decoder)
{
base.Update(context, decoder);
decoder.PushNamespace(Namespaces.OpcUaXsd);
if (decoder.Peek("InverseName"))
{
InverseName = decoder.ReadLocalizedText("InverseName");
}
if (decoder.Peek("Symmetric"))
{
Symmetric = decoder.ReadBoolean("Symmetric");
}
decoder.PopNamespace();
}
/// <summary>
/// Reads an extension object from the stream.
/// </summary>
private ExtensionObject ReadExtensionObject()
{
ExtensionObject extension = new ExtensionObject();
// read type id.
NodeId typeId = ReadNodeId(null);
// convert to absolute node id.
extension.TypeId = NodeId.ToExpandedNodeId(typeId, m_context.NamespaceUris);
if (!NodeId.IsNull(typeId) && NodeId.IsNull(extension.TypeId))
{
Utils.Trace(
"Cannot de-serialized extension objects if the NamespaceUri is not in the NamespaceTable: Type = {0}",
typeId);
}
// read encoding.
ExtensionObjectEncoding encoding = (ExtensionObjectEncoding)Enum.ToObject(typeof(ExtensionObjectEncoding), m_reader.ReadByte());
// nothing more to do for empty bodies.
if (encoding == ExtensionObjectEncoding.None)
{
return extension;
}
// check for known type.
Type systemType = m_context.Factory.GetSystemType(extension.TypeId);
// check for XML bodies.
if (encoding == ExtensionObjectEncoding.Xml)
{
extension.Body = ReadXmlElement(null);
// attempt to decode a known type.
if (systemType != null)
{
XmlElement element = extension.Body as XmlElement;
XmlDecoder xmlDecoder = new XmlDecoder(element, this.Context);
try
{
xmlDecoder.PushNamespace(element.NamespaceURI);
IEncodeable body = xmlDecoder.ReadEncodeable(element.LocalName, systemType);
xmlDecoder.PopNamespace();
// update body.
extension.Body = body;
}
catch (Exception e)
{
Utils.Trace("Could not decode known type {0}. Error={1}, Value={2}", systemType.FullName, e.Message, element.OuterXml);
}
}
return extension;
}
// create instance of type.
IEncodeable encodeable = null;
if (systemType != null)
{
encodeable = Activator.CreateInstance(systemType) as IEncodeable;
}
// get the length.
int length = ReadInt32(null);
// process unknown type.
if (encodeable == null)
{
// figure out how long the object is.
if (length == -1)
{
throw new ServiceResultException(
StatusCodes.BadDecodingError,
Utils.Format("Cannot determine length of unknown extension object body with type '{0}'.", extension.TypeId));
}
// check the length.
if (m_context.MaxByteStringLength > 0 && m_context.MaxByteStringLength < length)
{
throw ServiceResultException.Create(
StatusCodes.BadEncodingLimitsExceeded,
"MaxByteStringLength {0} < {1}",
m_context.MaxByteStringLength,
length);
}
// read the bytes of the body.
extension.Body = m_reader.ReadBytes(length);
return extension;
}
// save the current position.
int start = Position;
// decode body.
encodeable.Decode(this);
// skip any unread data.
int unused = length - (Position - start);
if (unused > 0)
{
m_reader.ReadBytes(unused);
}
extension.Body = encodeable;
return extension;
}
/// <summary>
/// Updates the attributes from the stream.
/// </summary>
/// <param name="context">The context for the system being accessed.</param>
/// <param name="decoder">The decoder wrapping the stream to read.</param>
public override void Update(ISystemContext context, XmlDecoder decoder)
{
base.Update(context, decoder);
decoder.PushNamespace(Namespaces.OpcUaXsd);
if (decoder.Peek("EventNotifier"))
{
EventNotifier = decoder.ReadByte("EventNotifier");
}
if (decoder.Peek("ContainsNoLoops"))
{
ContainsNoLoops = decoder.ReadBoolean("ContainsNoLoops");
}
decoder.PopNamespace();
}
/// <summary>
/// Updates the attributes from the stream.
/// </summary>
/// <param name="context">The context for the system being accessed.</param>
/// <param name="decoder">The decoder wrapping the stream to read.</param>
public override void Update(ISystemContext context, XmlDecoder decoder)
{
base.Update(context, decoder);
decoder.PushNamespace(Namespaces.OpcUaXsd);
if (decoder.Peek("SuperTypeId"))
{
SuperTypeId = decoder.ReadNodeId("SuperTypeId");
}
if (decoder.Peek("IsAbstract"))
{
IsAbstract = decoder.ReadBoolean("IsAbstract");
}
decoder.PopNamespace();
}
