Opc.Ua.Com.Server.ComDaBrowseCache.BrowseForNames C# (CSharp) Method

        public IList<string> BrowseForNames(
            Session session,
            string itemId,
            BrowseElementFilter elementFilter,
            string nameFilter,
            short dataTypeFilter,
            int accessRightsFilter)
        {
            TraceState("BrowseForNames", itemId, elementFilter, nameFilter, dataTypeFilter, accessRightsFilter);

            // look up the parent.
            BrowseElement parent = Lookup(session, itemId);

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

            // fetch the children.
            List<BrowseElement> children = LookupChildElements(session, parent);

            // search the children.
            List<string> hits = new List<string>();

            for (int ii = 0; ii < children.Count; ii++)
            {
                BrowseElement child = children[ii];

                // apply the name filter.
                if (!String.IsNullOrEmpty(nameFilter))
                {
                    if (!ComUtils.Match(child.BrowseName, nameFilter, false))
                    {
                        continue;
                    }
                }

                // branches must have children.
                if (elementFilter == BrowseElementFilter.Branch)
                {
                    if (child.NodeClass == NodeClass.Variable && child.ReferencesByName.Count == 0)
                    {
                        continue;
                    }
                }

                // items must be variables.
                if (elementFilter == BrowseElementFilter.Item)
                {
                    if (child.NodeClass != NodeClass.Variable)
                    {
                        continue;
                    }
                }

                if (child.NodeClass == NodeClass.Variable)
                {
                    // apply data type filter.
                    if (dataTypeFilter != 0)
                    {
                        if (child.CanonicalDataType != dataTypeFilter)
                        {
                            continue;
                        }
                    }

                    // apply access rights filter.
                    if (accessRightsFilter != 0)
                    {
                        if ((child.AccessRights & accessRightsFilter) == 0)
                        {
                            continue;
                        }
                    }
                }

                // a match.
                hits.Add(child.BrowseName);
            }

            // return all of the matching names.
            return hits;
        }