/// <summary>
/// Invokes the QueryFirst service.
/// </summary>
public virtual ResponseHeader QueryFirst(
RequestHeader requestHeader,
ViewDescription view,
NodeTypeDescriptionCollection nodeTypes,
ContentFilter filter,
uint maxDataSetsToReturn,
uint maxReferencesToReturn,
out QueryDataSetCollection queryDataSets,
out byte[] continuationPoint,
out ParsingResultCollection parsingResults,
out DiagnosticInfoCollection diagnosticInfos,
out ContentFilterResult filterResult)
{
queryDataSets = null;
continuationPoint = null;
parsingResults = null;
diagnosticInfos = null;
filterResult = null;
ValidateRequest(requestHeader);
// Insert implementation.
return(CreateResponse(requestHeader, StatusCodes.BadServiceUnsupported));
}
public static Entry For(NodeTypeDescriptionCollection nodeTypeDescriptions)
{
if (nodeTypeDescriptions == null)
{
return(new NullEntry());
}
else
{
ArrayEntry arrayEntry = new ArrayEntry();
NodeTypeDescriptionCollection.Enumerator e = nodeTypeDescriptions.GetEnumerator();
while (e.MoveNext())
{
arrayEntry.Add(For(e.Current));
}
return(arrayEntry);
}
}
private static void QueryFirstCall(Session session)
{
ViewDescription vd = new ViewDescription();
vd.ViewId = 5000;
vd.ViewVersion = 0;
NodeTypeDescriptionCollection nt = new NodeTypeDescriptionCollection();
NodeTypeDescription ntd = new NodeTypeDescription();
ExpandedNodeId enid = new ExpandedNodeId("ns=3;s=AirConditioner_1");
ntd.TypeDefinitionNode = enid;
nt.Add(ntd);
ContentFilterElement cfe = new ContentFilterElement();
ContentFilterElementCollection cfec = new ContentFilterElementCollection();
cfec.Add(cfe);
ContentFilter cf = new ContentFilter();
cf.Elements = cfec;
QueryDataSetCollection qdsc = new QueryDataSetCollection();
byte[] cp = new byte[100];
ParsingResultCollection prc = new ParsingResultCollection();
DiagnosticInfoCollection dic = new DiagnosticInfoCollection();
ContentFilterResult cfr = new ContentFilterResult();
try
{
var rs = session.QueryFirst(null, vd, nt, cf, 1000, 1000, out qdsc, out cp, out prc, out dic, out cfr);
}
catch (Exception eX)
{
Console.WriteLine("EXCEPTION: QueryFirst : {0}", eX.Message);
}
}
/// <summary>
/// Invokes the QueryFirst service.
/// </summary>
public virtual ResponseHeader QueryFirst(
RequestHeader requestHeader,
ViewDescription view,
NodeTypeDescriptionCollection nodeTypes,
ContentFilter filter,
uint maxDataSetsToReturn,
uint maxReferencesToReturn,
out QueryDataSetCollection queryDataSets,
out byte[] continuationPoint,
out ParsingResultCollection parsingResults,
out DiagnosticInfoCollection diagnosticInfos,
out ContentFilterResult filterResult)
{
queryDataSets = null;
continuationPoint = null;
parsingResults = null;
diagnosticInfos = null;
filterResult = null;
ValidateRequest(requestHeader);
// Insert implementation.
return CreateResponse(requestHeader, StatusCodes.BadServiceUnsupported);
}
/// <summary>
/// Begins an asynchronous invocation of the QueryFirst service.
/// </summary>
public IAsyncResult BeginQueryFirst(
RequestHeader requestHeader,
ViewDescription view,
NodeTypeDescriptionCollection nodeTypes,
ContentFilter filter,
uint maxDataSetsToReturn,
uint maxReferencesToReturn,
AsyncCallback callback,
object asyncState)
{
QueryFirstRequest request = new QueryFirstRequest();
request.RequestHeader = requestHeader;
request.View = view;
request.NodeTypes = nodeTypes;
request.Filter = filter;
request.MaxDataSetsToReturn = maxDataSetsToReturn;
request.MaxReferencesToReturn = maxReferencesToReturn;
UpdateRequestHeader(request, requestHeader == null, "QueryFirst");
if (UseTransportChannel)
{
return TransportChannel.BeginSendRequest(request, callback, asyncState);
}
return InnerChannel.BeginQueryFirst(new QueryFirstMessage(request), callback, asyncState);
}
/// <summary>
/// Invokes the QueryFirst service.
/// </summary>
public virtual ResponseHeader QueryFirst(
RequestHeader requestHeader,
ViewDescription view,
NodeTypeDescriptionCollection nodeTypes,
ContentFilter filter,
uint maxDataSetsToReturn,
uint maxReferencesToReturn,
out QueryDataSetCollection queryDataSets,
out byte[] continuationPoint,
out ParsingResultCollection parsingResults,
out DiagnosticInfoCollection diagnosticInfos,
out ContentFilterResult filterResult)
{
QueryFirstRequest request = new QueryFirstRequest();
QueryFirstResponse response = null;
request.RequestHeader = requestHeader;
request.View = view;
request.NodeTypes = nodeTypes;
request.Filter = filter;
request.MaxDataSetsToReturn = maxDataSetsToReturn;
request.MaxReferencesToReturn = maxReferencesToReturn;
UpdateRequestHeader(request, requestHeader == null, "QueryFirst");
try
{
if (UseTransportChannel)
{
IServiceResponse genericResponse = TransportChannel.SendRequest(request);
if (genericResponse == null)
{
throw new ServiceResultException(StatusCodes.BadUnknownResponse);
}
ValidateResponse(genericResponse.ResponseHeader);
response = (QueryFirstResponse)genericResponse;
}
else
{
QueryFirstResponseMessage responseMessage = InnerChannel.QueryFirst(new QueryFirstMessage(request));
if (responseMessage == null || responseMessage.QueryFirstResponse == null)
{
throw new ServiceResultException(StatusCodes.BadUnknownResponse);
}
response = responseMessage.QueryFirstResponse;
ValidateResponse(response.ResponseHeader);
}
queryDataSets = response.QueryDataSets;
continuationPoint = response.ContinuationPoint;
parsingResults = response.ParsingResults;
diagnosticInfos = response.DiagnosticInfos;
filterResult = response.FilterResult;
}
finally
{
RequestCompleted(request, response, "QueryFirst");
}
return response.ResponseHeader;
}