private CallResourceResponse IsNodePresent(CallResourceRequest request, Session connection, NameValueCollection queryParams, NamespaceTable nsTable)
{
CallResourceResponse response = new CallResourceResponse();
string nodeId = HttpUtility.UrlDecode(queryParams["nodeId"]);
try
{
var nId = Converter.GetNodeId(nodeId, nsTable);
var readRes = connection.ReadAttributes(nId, new[] { Opc.Ua.Attributes.BrowseName });
bool present = readRes.Length > 0;
var result = JsonSerializer.Serialize(present);
response.Code = 200;
response.Body = ByteString.CopyFrom(result, Encoding.ASCII);
_log.LogDebug($"We got a result for '{nodeId}' from IsNodePresent => {0}", result);
return(response);
}
catch (Exception e)
{
_log.LogDebug($"IsNodePresent for '{nodeId}' is false: ", e.Message);
var result = JsonSerializer.Serialize(false);
response.Code = 200;
response.Body = ByteString.CopyFrom(result, Encoding.ASCII);
return(response);
}
}
private CallResourceResponse RemoveDashboardmapping(CallResourceRequest request, Session connection, NameValueCollection queryParams, NamespaceTable nsTable)
{
CallResourceResponse response = new CallResourceResponse();
string nodeId = HttpUtility.UrlDecode(queryParams["nodeId"]);
string typeNodeId = HttpUtility.UrlDecode(queryParams["typeNodeId"]);
bool useType = bool.Parse(HttpUtility.UrlDecode(queryParams["useType"]));
string[] interfaces = JsonSerializer.Deserialize <string[]>(HttpUtility.UrlDecode(queryParams["interfaces"]));
string perspective = HttpUtility.UrlDecode(queryParams["perspective"]);
var nodeIdJson = ConvertNodeIdToJson(nodeId, nsTable);
var typeNodeIdJson = ConvertNodeIdToJson(typeNodeId, nsTable);
var interfacesIds = Array.Empty <string>();
if (interfaces != null)
{
interfacesIds = interfaces.Select(a => ConvertNodeIdToJson(a, nsTable)).ToArray();
}
var dashboardMappingData = new DashboardMappingData(connection, nodeId, nodeIdJson, typeNodeIdJson, useType, interfacesIds, null, null, perspective, nsTable);
var r = _dashboardResolver.RemoveDashboardMapping(dashboardMappingData);
var result = JsonSerializer.Serialize(r);
response.Code = 200;
response.Body = ByteString.CopyFrom(result, Encoding.ASCII);
_log.LogDebug("Remove dashboard mapping => {0}", r.success);
return(response);
}
private CallResourceResponse ReadNode(CallResourceRequest request, Session connection, NameValueCollection queryParams, NamespaceTable nsTable)
{
CallResourceResponse response = new CallResourceResponse();
string nodeId = HttpUtility.UrlDecode(queryParams["nodeId"]);
var nodeInfo = ReadNodeInfo(connection, nsTable, nodeId);
var result = JsonSerializer.Serialize(nodeInfo);
response.Code = 200;
response.Body = ByteString.CopyFrom(result, Encoding.ASCII);
return(response);
}
private CallResourceResponse BrowseTypes(CallResourceRequest request, Session connection, NameValueCollection queryParams, NamespaceTable nsTable)
{
CallResourceResponse response = new CallResourceResponse();
string nodeId = HttpUtility.UrlDecode(queryParams["nodeId"]);
var nId = Converter.GetNodeId(nodeId, nsTable);
var browseResult = connection.Browse(nId, (uint)(Opc.Ua.NodeClass.ObjectType | Opc.Ua.NodeClass.VariableType));
var result = JsonSerializer.Serialize(browseResult.Select(a => Converter.ConvertToBrowseResult(a, nsTable)).ToArray());
response.Code = 200;
response.Body = ByteString.CopyFrom(result, Encoding.ASCII);
_log.LogDebug("We got a result from browse => {0}", result);
return(response);
}
private CallResourceResponse GetNodePath(CallResourceRequest request, Session connection, NameValueCollection queryParams, NamespaceTable nsTable)
{
CallResourceResponse response = new CallResourceResponse();
string nodeId = HttpUtility.UrlDecode(queryParams["nodeId"]);
if (string.IsNullOrEmpty(nodeId))
{
response.Code = 200;
response.Body = ByteString.CopyFrom("", Encoding.ASCII);
return(response);
}
string rootId = HttpUtility.UrlDecode(queryParams["rootId"]);
var nId = Converter.GetNodeId(nodeId, nsTable);
var rId = ObjectIds.RootFolder;
if (!string.IsNullOrEmpty(rootId))
{
rId = Converter.GetNodeId(rootId, nsTable);
}
var readRes = connection.ReadAttributes(nId, new[] { Opc.Ua.Attributes.BrowseName, Opc.Ua.Attributes.DisplayName, Opc.Ua.Attributes.NodeClass });
if (!readRes[0].Success)
{
throw new ArgumentException(readRes[0].Error + " StatusCode: " + readRes[0].StatusCode.ToString());
}
var browseName = (Opc.Ua.QualifiedName)readRes[0].Value;
var displayName = (Opc.Ua.LocalizedText)readRes[1].Value;
var nodeClass = (Opc.Ua.NodeClass)readRes[2].Value;
var nodePath = FindBrowsePath(connection, nId, rId, browseName, nsTable);
var nodeInfo = new NodeInfo()
{
browseName = Converter.GetQualifiedName(browseName, nsTable),
displayName = displayName.Text,
nodeClass = (uint)nodeClass,
nodeId = Converter.GetNodeIdAsJson(nId, nsTable)
};
var np = new NodePath()
{
node = nodeInfo, browsePath = nodePath
};
var result = JsonSerializer.Serialize(np);
response.Code = 200;
response.Body = ByteString.CopyFrom(result, Encoding.ASCII);
return(response);
}
private CallResourceResponse GetTypeDefinition(CallResourceRequest request, Session connection, NameValueCollection queryParams, NamespaceTable nsTable)
{
CallResourceResponse response = new CallResourceResponse();
string nodeId = HttpUtility.UrlDecode(queryParams["nodeId"]);
var nId = Converter.GetNodeId(nodeId, nsTable);
connection.Browse(null, null, nId, 1, Opc.Ua.BrowseDirection.Forward, "i=40", true, (uint)(Opc.Ua.NodeClass.ObjectType | Opc.Ua.NodeClass.VariableType), out byte[] cont, out Opc.Ua.ReferenceDescriptionCollection references);
var result = JsonSerializer.Serialize(Converter.ConvertToBrowseResult(references[0], nsTable));
response.Code = 200;
response.Body = ByteString.CopyFrom(result, Encoding.ASCII);
_log.LogDebug("We got a result from browse => {0}", result);
return(response);
}
//getNamespaceIndices
private CallResourceResponse GetNamespaceIndices(CallResourceRequest request, Session connection, NameValueCollection queryParams, NamespaceTable nsTable)
{
CallResourceResponse response = new CallResourceResponse();
var nodeId = Variables.Server_NamespaceArray;
var dv = connection.ReadValue(nodeId);
if (Opc.Ua.StatusCode.IsGood(dv.StatusCode))
{
var ns = dv.Value as string[];
var result = JsonSerializer.Serialize(ns);
response.Code = 200;
response.Body = ByteString.CopyFrom(result, Encoding.ASCII);
return(response);
}
throw new Exception("Could not read namespace array");
}
private CallResourceResponse GetNamespaces(CallResourceRequest request, Session connection, NameValueCollection queryParams, NamespaceTable nsTable)
{
CallResourceResponse response = new CallResourceResponse();
string[] namespaces = new string[nsTable.Count];
for (uint i = 0; i < nsTable.Count; i++)
{
namespaces[i] = nsTable.GetString(i);
}
var result = JsonSerializer.Serialize(namespaces);
response.Code = 200;
response.Body = ByteString.CopyFrom(result, Encoding.ASCII);
return(response);
}
private CallResourceResponse GetDashboard(CallResourceRequest request, Session connection, NameValueCollection queryParams, NamespaceTable nsTable)
{
CallResourceResponse response = new CallResourceResponse();
string nodeId = HttpUtility.UrlDecode(queryParams["nodeId"]);
string perspective = HttpUtility.UrlDecode(queryParams["perspective"]);
var targetNodeIdJson = ConvertNodeIdToJson(nodeId, nsTable);
(string dashboard, string[] dashKeys) = _dashboardResolver.ResolveDashboard(connection, nodeId, targetNodeIdJson, perspective, nsTable);
var dashboardInfo = new DashboardInfo()
{
name = dashboard, dashKeys = dashKeys
};
var result = JsonSerializer.Serialize(dashboardInfo);
response.Code = 200;
response.Body = ByteString.CopyFrom(result, Encoding.ASCII);
_log.LogDebug("We got a dash => {0}", dashboard);
return(response);
}
private CallResourceResponse Browse(CallResourceRequest request, Session connection, NameValueCollection queryParams, NamespaceTable nsTable)
{
CallResourceResponse response = new CallResourceResponse();
string nodeId = HttpUtility.UrlDecode(queryParams["nodeId"]);
var mask = queryParams["nodeClassMask"];
string filter = queryParams["browseFilter"];
BrowseFilter browseFilter = null;
if (!string.IsNullOrEmpty(filter))
{
browseFilter = JsonSerializer.Deserialize <BrowseFilter>(filter);
}
var hasMask = !string.IsNullOrWhiteSpace(mask);
uint nodeClassMask = 0;
if (hasMask)
{
if (!uint.TryParse(mask, out nodeClassMask))
{
hasMask = false;
}
}
var nId = Converter.GetNodeId(nodeId, nsTable);
IEnumerable <ReferenceDescription> browseResult = connection.Browse(nId, hasMask ? nodeClassMask : (int)(NodeClass.Object | NodeClass.Variable), GetMaxResults(browseFilter));
if (!string.IsNullOrEmpty(browseFilter?.browseName))
{
browseResult = browseResult.Where(a => a.BrowseName.Name.Contains(browseFilter.browseName));
}
var result = JsonSerializer.Serialize(browseResult.Select(a => Converter.ConvertToBrowseResult(a, nsTable)).OrderBy(refdesc => refdesc.displayName).ToArray());
response.Code = 200;
response.Body = ByteString.CopyFrom(result, Encoding.ASCII);
_log.LogDebug("We got a result from browse => {0}", result);
return(response);
}
private CallResourceResponse BrowseEventFields(CallResourceRequest request, Session connection, NameValueCollection queryParams, NamespaceTable nsTable)
{
CallResourceResponse response = new CallResourceResponse();
string nodeId = HttpUtility.UrlDecode(queryParams["nodeId"]);
var nId = Converter.GetNodeId(nodeId, nsTable);
var browseResult = connection.Browse(nId, (uint)(Opc.Ua.NodeClass.Variable));
NodeId superType = null;
while ((superType = GetSuperType(connection, nId, nsTable)) != null)
{
var superBrowseResult = connection.Browse(superType, (uint)(Opc.Ua.NodeClass.Variable));
browseResult.AddRange(superBrowseResult);
nId = superType;
}
var ordered = browseResult.Select(a => Converter.ConvertToBrowseResult(a, nsTable)).OrderBy(a => a.browseName.name).ToArray();
var result = JsonSerializer.Serialize(ordered);
response.Code = 200;
response.Body = ByteString.CopyFrom(result, Encoding.ASCII);
_log.LogDebug("We got a result from browse => {0}", result);
return(response);
}
private CallResourceResponse TranslateBrowsePathToNode(CallResourceRequest request, Session connection, NameValueCollection queryParams, NamespaceTable nsTable)
{
CallResourceResponse response = new CallResourceResponse();
var body = request.Body.ToString(Encoding.UTF8);
var relativeBrowsePath = JsonSerializer.Deserialize <RelativeBrowsePath>(body);
var rootId = relativeBrowsePath.startNode;
var bp = relativeBrowsePath.browsePath;
var bpColl = new BrowsePathCollection();
var browsePath = new BrowsePath();
browsePath.StartingNode = Converter.GetNodeId(rootId, nsTable);
var relativePaths = bp.Select(qm => new RelativePathElement()
{
TargetName = Converter.GetQualifiedName(qm, nsTable), IsInverse = false, IncludeSubtypes = true, ReferenceTypeId = Opc.Ua.ReferenceTypeIds.HierarchicalReferences
});
browsePath.RelativePath.Elements.AddRange(relativePaths);
bpColl.Add(browsePath);
connection.TranslateBrowsePathsToNodeIds(null, bpColl, out BrowsePathResultCollection results, out DiagnosticInfoCollection diagnosticInfos);
if (Opc.Ua.StatusCode.IsBad(results[0].StatusCode))
{
throw new ArgumentException(results[0].StatusCode.ToString());
}
if (results[0].Targets.Count == 0)
{
throw new ArgumentException("Could find node for browse path.");
}
var nodeId = ExpandedNodeId.ToNodeId(results[0].Targets[0].TargetId, nsTable);
var nodeInfo = ReadNodeInfo(connection, nsTable, Converter.GetNodeIdAsJson(nodeId, nsTable));
var result = JsonSerializer.Serialize(nodeInfo);
response.Code = 200;
response.Body = ByteString.CopyFrom(result, Encoding.ASCII);
return(response);
}
private CallResourceResponse RemoveDashboardmappingByKeys(CallResourceRequest request, Session connection, NameValueCollection queryParams, NamespaceTable nsTable)
{
CallResourceResponse response = new CallResourceResponse();
string[] dashKeys = JsonSerializer.Deserialize <string[]>(HttpUtility.UrlDecode(queryParams["dashKeys"]));
string perspective = HttpUtility.UrlDecode(queryParams["perspective"]);
var dashKeysIds = Array.Empty <string>();
if (dashKeys != null)
{
dashKeysIds = dashKeys.Select(a => ConvertNodeIdToJson(a, nsTable)).ToArray();
}
var dashboardMappingData = new DashboardMappingData(connection, null, null, null, false, dashKeysIds, null, null, perspective, nsTable);
var r = _dashboardResolver.RemoveDashboardMapping(dashboardMappingData);
var result = JsonSerializer.Serialize(r);
response.Code = 200;
response.Body = ByteString.CopyFrom(result, Encoding.ASCII);
_log.LogDebug("Remove dashboard mapping => {0}", r.success);
return(response);
}
