Opc.Ua.Sample.SampleNodeManager.GetNodeMetadata C# (CSharp) Method

        public virtual NodeMetadata GetNodeMetadata(
            OperationContext context, 
            object           targetHandle, 
            BrowseResultMask resultMask)
        {
            ServerSystemContext systemContext = m_systemContext.Copy(context);

            lock (Lock)
            {
                // check for valid handle.
                NodeState target = IsHandleInNamespace(targetHandle);

                if (target == null)
                {
                    return null;                
                }

                // validate node.
                if (!ValidateNode(systemContext, target))
                {
                    return null;
                }

                // read the attributes.
                List<object> values = target.ReadAttributes(
                    systemContext,
                    Attributes.WriteMask,
                    Attributes.UserWriteMask,
                    Attributes.DataType,
                    Attributes.ValueRank,
                    Attributes.ArrayDimensions,
                    Attributes.AccessLevel,
                    Attributes.UserAccessLevel,
                    Attributes.EventNotifier,
                    Attributes.Executable,
                    Attributes.UserExecutable);

                // construct the metadata object.

                NodeMetadata metadata = new NodeMetadata(target, target.NodeId);

                metadata.NodeClass = target.NodeClass;
                metadata.BrowseName = target.BrowseName;
                metadata.DisplayName = target.DisplayName;

                if (values[0] != null && values[1] != null)
                {
                    metadata.WriteMask = (AttributeWriteMask)(((uint)values[0]) & ((uint)values[1]));
                }

                metadata.DataType = (NodeId)values[2];

                if (values[3] != null)
                {
                    metadata.ValueRank = (int)values[3];
                }

                metadata.ArrayDimensions = (IList<uint>)values[4];
                
                if (values[5] != null && values[6] != null)
                {
                    metadata.AccessLevel = (byte)(((byte)values[5]) & ((byte)values[6]));
                }

                if (values[7] != null)
                {
                    metadata.EventNotifier = (byte)values[7];
                }

                if (values[8] != null && values[9] != null)
                {
                    metadata.Executable = (((bool)values[8]) && ((bool)values[9]));
                }

                // get instance references.
                BaseInstanceState instance = target as BaseInstanceState;

                if (instance != null)
                {
                    metadata.TypeDefinition = instance.TypeDefinitionId;
                    metadata.ModellingRule = instance.ModellingRuleId;
                }

                // fill in the common attributes.
                return metadata;
            }
        }