/// <summary>
/// Initializes the node manager.
/// </summary>
public PerfTestNodeManager(IServerInternal server, ApplicationConfiguration configuration)
:
base(server, configuration, Namespaces.PerfTest)
{
SystemContext.NodeIdFactory = this;
SystemContext.SystemHandle = m_system = new UnderlyingSystem();
// get the configuration for the node manager.
m_configuration = configuration.ParseExtension <PerfTestServerConfiguration>();
// use suitable defaults if no configuration exists.
if (m_configuration == null)
{
m_configuration = new PerfTestServerConfiguration();
}
}
/// <summary>
/// Initializes the node manager.
/// </summary>
public PerfTestNodeManager(IServerInternal server, ApplicationConfiguration configuration)
:
base(server, configuration, Namespaces.PerfTest)
{
SystemContext.NodeIdFactory = this;
SystemContext.SystemHandle = m_system = new UnderlyingSystem();
// get the configuration for the node manager.
m_configuration = configuration.ParseExtension<PerfTestServerConfiguration>();
// use suitable defaults if no configuration exists.
if (m_configuration == null)
{
m_configuration = new PerfTestServerConfiguration();
}
}
/// <summary>
/// Returns the next reference.
/// </summary>
/// <returns>The next reference that meets the browse criteria.</returns>
public override IReference Next()
{
UnderlyingSystem system = (UnderlyingSystem)this.SystemContext.SystemHandle;
lock (DataLock)
{
IReference reference = null;
// enumerate pre-defined references.
// always call first to ensure any pushed-back references are returned first.
reference = base.Next();
if (reference != null)
{
return(reference);
}
if (m_stage == Stage.Begin)
{
m_stage = Stage.Tags;
m_position = 0;
}
// don't start browsing huge number of references when only internal references are requested.
if (InternalOnly)
{
return(null);
}
// enumerate tags.
if (m_stage == Stage.Tags)
{
if (IsRequired(ReferenceTypeIds.Organizes, false))
{
reference = NextChild();
if (reference != null)
{
return(reference);
}
}
}
// all done.
return(null);
}
}
/// <summary>
/// Returns the next child.
/// </summary>
private IReference NextChild()
{
UnderlyingSystem system = (UnderlyingSystem)this.SystemContext.SystemHandle;
NodeId targetId = null;
// check if a specific browse name is requested.
if (!QualifiedName.IsNull(base.BrowseName))
{
// browse name must be qualified by the correct namespace.
if (m_parent.BrowseName.NamespaceIndex != base.BrowseName.NamespaceIndex)
{
return(null);
}
// parse the browse name.
int index = 0;
for (int ii = 0; ii < base.BrowseName.Name.Length; ii++)
{
char ch = base.BrowseName.Name[ii];
if (!Char.IsDigit(ch))
{
return(null);
}
index *= 10;
index += Convert.ToInt32(ch - '0');
}
// check for valid browse name.
if (index < 0 || index > m_parent.Register.Size)
{
return(null);
}
// return target.
targetId = ModelUtils.GetRegisterVariableId(m_parent.Register, index, m_parent.NodeId.NamespaceIndex);
}
// return the child at the next position.
else
{
// look for next segment.
if (m_position >= m_parent.Register.Size)
{
return(null);
}
// return target.
targetId = ModelUtils.GetRegisterVariableId(m_parent.Register, m_position, m_parent.NodeId.NamespaceIndex);
m_position++;
}
// create reference.
if (targetId != null)
{
return(new NodeStateReference(ReferenceTypeIds.Organizes, false, targetId));
}
return(null);
}
