void LoadDataSourceSources(
ISystemContext context,
ToolState tool,
DsatsDemo.DataSource.DataSource datasource,
DsatsDemo.DataSource.DeclarationType declaration)
{
if (declaration == null || declaration.Sources == null)
{
return;
}
// need to ensure the server's tables are not updated when loading this file.
ServerSystemContext context2 = new ServerSystemContext(this.Server);
context2.NamespaceUris = new NamespaceTable();
context2.ServerUris = new StringTable();
context2.NodeIdFactory = this;
context2.NamespaceUris.Append(context.ServerUris.GetString(0));
context2.ServerUris.Append(context.ServerUris.GetString(0));
foreach (DsatsDemo.DataSource.SourceType source in declaration.Sources)
{
BaseInstanceState child = tool.FindChildBySymbolicName(context, source.Path);
if (child == null)
{
continue;
}
if (source.DefaultValue != null)
{
BaseVariableState variable = child as BaseVariableState;
if (variable != null)
{
try
{
Variant value = datasource.Read(context, source.DefaultValue);
variable.WrappedValue = value;
}
catch (Exception)
{
Utils.Trace("Could not read Variant in file. {0}", source.DefaultValue.InnerXml);
}
}
}
if (source.RemoteId != null)
{
ExpandedNodeId remoteId = datasource.ReadExpandedNodeId(context2, source.RemoteId);
if (m_remoteNodes == null)
{
m_remoteNodes = new NodeIdDictionary<RemoteNode>();
}
RemoteNode remoteNode = new RemoteNode();
remoteNode.Tool = tool;
remoteNode.ServerUrl = context2.ServerUris.GetString(remoteId.ServerIndex);
remoteNode.LocalNode = child;
remoteNode.RemoteId = remoteId;
m_remoteNodes.Add(child.NodeId, remoteNode);
}
}
}
