/// <summary>
/// Releases any continuation points.
/// </summary>
private void ReleaseContinuationPoints()
{
if (m_details != null)
{
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(m_nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(m_details),
TimestampsToReturn.Neither,
true,
nodesToRead,
out results,
out diagnosticInfos);
Session.ValidateResponse(results, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
NextBTN.Visible = false;
StopBTN.Enabled = false;
GoBTN.Visible = true;
m_details = null;
m_nodeToRead = null;
}
}
public override void Execute(OpcSession session)
{
LogExecutionStart(session);
NormalizeNodeId(session);
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection
{
new HistoryReadValueId {
NodeId = OpcUaNodeId
}
};
Opc.Ua.Client.Session uaSession = session.OpcUaClientSession;
Logger.Debug("About to perform a HistoryRead:");
Logger.Debug("Details:");
Logger.Debug($" Start time: {details.StartTime}");
Logger.Debug($" End time: {details.EndTime}");
Logger.Debug($" Read modified: {details.IsReadModified}");
Logger.Debug($" Values per node: {details.NumValuesPerNode}");
Logger.Debug($" Return bounds: {details.ReturnBounds}");
Logger.Debug("Nodes to read:");
nodesToRead.ForEach(n => Logger.Debug($" {n}({n.NodeId})"));
uaSession.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Both,
false,
nodesToRead,
out HistoryReadResultCollection results,
out DiagnosticInfoCollection diagnostics
);
Logger.Debug($"HistoryRead got {results.Count} results, {diagnostics.Count} diagnostics.");
HistoryReadResult hrr = results[0];
HistoryData histData = (HistoryData)ExtensionObject.ToEncodeable(hrr.HistoryData);
if (StatusCode.IsBad(hrr.StatusCode))
{
Logger.Information($"Bad result ({hrr.StatusCode}) reading {OpcNodeId}");
}
else
{
if (StatusCode.IsGood(hrr.StatusCode))
{
Logger.Debug($"Good result: {histData}, {histData.DataValues.Count} values.");
}
if (StatusCode.IsUncertain(hrr.StatusCode))
{
Logger.Information($"Uncertain result: {hrr}");
}
}
foreach (DataValue dv in histData.DataValues)
{
Logger.Debug($" {dv} ({dv.SourceTimestamp})");
dataValue1 = new DataValue(); // Acá debería asignarse algo que viene desde «results».
if (Program.HaveToWriteCsv)
{
WriteDataValueToCsvFile(dv);
}
}
}
/// <summary>
/// read History data
/// </summary>
/// <param name="tag">节点的索引</param>
/// <param name="start">开始时间</param>
/// <param name="end">结束时间</param>
/// <param name="count">读取的个数</param>
/// <param name="containBound">是否包含边界</param>
/// <returns>读取的数据列表</returns>
public IEnumerable <DataValue> ReadHistoryRawDataValues(string tag, DateTime start, DateTime end, uint count = 1, bool containBound = false)
{
HistoryReadValueId m_nodeToContinue = new HistoryReadValueId()
{
NodeId = new NodeId(tag),
};
RequestHeader requestHeader = new RequestHeader();
ReadRawModifiedDetails m_details = new ReadRawModifiedDetails
{
StartTime = start.ToUniversalTime(),
EndTime = end.ToUniversalTime(),
NumValuesPerNode = count,
IsReadModified = false,
ReturnBounds = containBound
};
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(m_nodeToContinue);
m_session.HistoryRead(
requestHeader,
new ExtensionObject(m_details),
TimestampsToReturn.Both,
false,
nodesToRead,
out HistoryReadResultCollection results,
out DiagnosticInfoCollection diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToRead);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
if (results[0].HistoryData != null)
{
HistoryData values = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryData;
foreach (var value in values.DataValues)
{
if (value.SourceTimestamp < m_details.StartTime || value.SourceTimestamp > m_details.EndTime)
{
var difference = (m_details.StartTime - value.SourceTimestamp).Hours;
value.SourceTimestamp = value.SourceTimestamp.AddHours(difference);
}
yield return(value);
}
}
}
/// <summary>
/// Continues a read operation.
/// </summary>
private void ReadNext(ReadEventDetails details, HistoryReadValueId nodeToRead)
{
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
ResponseHeader responseHeader = m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Neither,
false,
nodesToRead,
out results,
out diagnosticInfos);
Session.ValidateResponse(results, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw ServiceResultException.Create(results[0].StatusCode, 0, diagnosticInfos, responseHeader.StringTable);
}
// display results.
HistoryEvent data = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryEvent;
ResultsLV.AddEventHistory(data);
// check if a continuation point exists.
if (results[0].ContinuationPoint != null && results[0].ContinuationPoint.Length > 0)
{
nodeToRead.ContinuationPoint = results[0].ContinuationPoint;
NextBTN.Visible = true;
StopBTN.Enabled = true;
GoBTN.Visible = false;
m_details = details;
m_nodeToRead = nodeToRead;
}
// all done.
else
{
NextBTN.Visible = false;
StopBTN.Enabled = false;
GoBTN.Visible = true;
m_details = null;
m_nodeToRead = null;
}
}
public async Task <TimeSeries> GetTimeSeriesAsync(DateTime dateTimeFrom, DateTime dateTimeTo,
double lessThen, double moreThen)
{
return(await Task.Run(() =>
{
var details = new ReadRawModifiedDetails
{
StartTime = dateTimeFrom,
EndTime = dateTimeTo,
ReturnBounds = false
};
var nodesToRead = new HistoryReadValueIdCollection
{
new HistoryReadValueId {
NodeId = NodeId
}
};
Client.Session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Source,
false,
nodesToRead,
out var results,
out var diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToRead);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
var data = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryData;
var ts = new TimeSeries();
if (data == null)
{
return ts;
}
foreach (var result in data.DataValues)
{
ts.Add(result.SourceTimestamp.ToLocalTime(), (double)result.Value);
}
return ts;
}));
}
public IEnumerable <DataValue> ReadHistoryProcessed(string tag, DateTime start, DateTime end, string aggregateFunction, double processingInterval, uint count = 1, bool containBound = false)
{
HistoryReadValueId m_nodeToContinue = new HistoryReadValueId()
{
NodeId = new NodeId(tag),
};
AggregateConfiguration aggregate = new AggregateConfiguration();
NodeIdCollection aggregateTypes = new NodeIdCollection();
aggregateTypes.Add(new NodeId(aggregateFunction));
ReadProcessedDetails m_details = new ReadProcessedDetails
{
StartTime = start.ToUniversalTime(),
EndTime = end.ToUniversalTime(),
AggregateConfiguration = aggregate,
AggregateType = aggregateTypes,
ProcessingInterval = processingInterval,
};
m_logger.Information("start {0}/end {0}", m_details.StartTime, m_details.EndTime);
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(m_nodeToContinue);
m_session.HistoryRead(
null,
new ExtensionObject(m_details),
TimestampsToReturn.Both,
false,
nodesToRead,
out HistoryReadResultCollection results,
out DiagnosticInfoCollection diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToRead);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
HistoryData values = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryData;
foreach (var value in values.DataValues)
{
yield return(value);
}
}
/// <summary>
/// Saves a continuation point for later use.
/// </summary>
private void SaveContinuationPoint(HistoryReadDetails details, HistoryReadValueId nodeToRead, byte[] continuationPoint)
{
// clear existing continuation point.
if (m_nodeToContinue != null)
{
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(m_nodeToContinue);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(m_details),
TimestampsToReturn.Neither,
true,
nodesToRead,
out results,
out diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToRead);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
}
m_details = null;
m_nodeToContinue = null;
// save new continutation point.
if (continuationPoint != null && continuationPoint.Length > 0)
{
m_details = details;
m_nodeToContinue = nodeToRead;
m_nodeToContinue.ContinuationPoint = continuationPoint;
}
// update controls.
if (m_nodeToContinue != null)
{
GoBTN.Visible = false;
NextBTN.Visible = true;
NextBTN.Enabled = true;
StopBTN.Enabled = true;
}
else
{
GoBTN.Visible = true;
GoBTN.Enabled = true;
NextBTN.Visible = false;
StopBTN.Enabled = false;
}
}
/// <summary>
/// Fetches the recent history.
/// </summary>
private void ReadHistory(ReadEventDetails details, NodeId areaId)
{
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
HistoryReadValueId nodeToRead = new HistoryReadValueId();
nodeToRead.NodeId = areaId;
nodesToRead.Add(nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Neither,
false,
nodesToRead,
out results,
out diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToRead);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
HistoryEvent events = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryEvent;
foreach (HistoryEventFieldList e in events.Events)
{
DisplayEvent(e.EventFields);
}
// release continuation points.
if (results[0].ContinuationPoint != null && results[0].ContinuationPoint.Length > 0)
{
nodeToRead.ContinuationPoint = results[0].ContinuationPoint;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Neither,
true,
nodesToRead,
out results,
out diagnosticInfos);
}
}
/// <summary>
/// 读取一连串的历史数据，并将其转化成指定的类型
/// </summary>
/// <param name="tag">节点的索引</param>
/// <param name="start">开始时间</param>
/// <param name="end">结束时间</param>
/// <param name="count">读取的个数</param>
/// <param name="containBound">是否包含边界</param>
/// <returns>读取的数据列表</returns>
public IEnumerable <T> ReadHistoryRawDataValues <T>(string tag, DateTime start, DateTime end, uint count = 1, bool containBound = false)
{
HistoryReadValueId m_nodeToContinue = new HistoryReadValueId()
{
NodeId = new NodeId(tag),
};
ReadRawModifiedDetails m_details = new ReadRawModifiedDetails
{
StartTime = start.ToUniversalTime(),
EndTime = end.ToUniversalTime(),
NumValuesPerNode = count,
IsReadModified = false,
ReturnBounds = containBound
};
m_logger.Information("start {0}/end {0}", m_details.StartTime, m_details.EndTime);
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(m_nodeToContinue);
m_session.HistoryRead(
null,
new ExtensionObject(m_details),
TimestampsToReturn.Both,
false,
nodesToRead,
out HistoryReadResultCollection results,
out DiagnosticInfoCollection diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToRead);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
HistoryData values = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryData;
m_logger.Information("values {0}", values);
foreach (var value in values.DataValues)
{
yield return((T)value.Value);
}
}
public static Entry For(HistoryReadValueIdCollection collection)
{
if (collection == null)
{
return(new NullEntry());
}
else
{
ArrayEntry array = new ArrayEntry();
HistoryReadValueIdCollection.Enumerator e = collection.GetEnumerator();
while (e.MoveNext())
{
array.Add(For(e.Current));
}
return(array);
}
}
/// <summary>
/// Fetches the recent history.
/// </summary>
private void ReadAtTime()
{
ReadAtTimeDetails details = new ReadAtTimeDetails();
// generate times
DateTime startTime = StartTimeDP.Value.ToUniversalTime();
for (int ii = 0; ii < MaxReturnValuesNP.Value; ii++)
{
details.ReqTimes.Add(startTime.AddMilliseconds((double)(ii * TimeStepNP.Value)));
}
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
HistoryReadValueId nodeToRead = new HistoryReadValueId();
nodeToRead.NodeId = m_nodeId;
nodesToRead.Add(nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Both,
false,
nodesToRead,
out results,
out diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToRead);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
HistoryData values = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryData;
DisplayResults(values);
// save any continuation point.
SaveContinuationPoint(details, nodeToRead, results[0].ContinuationPoint);
}
/// <summary>
/// Fetches the recent history.
/// </summary>
private void ReadProcessed()
{
AvailableAggregate aggregate = (AvailableAggregate)AggregateCB.SelectedItem;
ReadProcessedDetails details = new ReadProcessedDetails();
details.StartTime = StartTimeDP.Value.ToUniversalTime();
details.EndTime = EndTimeDP.Value.ToUniversalTime();
details.ProcessingInterval = (double)ResampleIntervalNP.Value;
details.AggregateType.Add(aggregate.NodeId);
details.AggregateConfiguration.UseServerCapabilitiesDefaults = true;
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
HistoryReadValueId nodeToRead = new HistoryReadValueId();
nodeToRead.NodeId = m_nodeId;
nodesToRead.Add(nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Both,
false,
nodesToRead,
out results,
out diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToRead);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
HistoryData values = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryData;
DisplayResults(values);
// save any continuation point.
SaveContinuationPoint(details, nodeToRead, results[0].ContinuationPoint);
}
/// <summary>
/// Invokes the HistoryRead service.
/// </summary>
public virtual ResponseHeader HistoryRead(
RequestHeader requestHeader,
ExtensionObject historyReadDetails,
TimestampsToReturn timestampsToReturn,
bool releaseContinuationPoints,
HistoryReadValueIdCollection nodesToRead,
out HistoryReadResultCollection results,
out DiagnosticInfoCollection diagnosticInfos)
{
results = null;
diagnosticInfos = null;
ValidateRequest(requestHeader);
// Insert implementation.
return(CreateResponse(requestHeader, StatusCodes.BadServiceUnsupported));
}
/// <summary>
/// read History data
/// </summary>
/// <param name="tag">节点的索引</param>
/// <param name="start">开始时间</param>
/// <param name="end">结束时间</param>
/// <param name="count">读取的个数</param>
/// <param name="containBound">是否包含边界</param>
/// <returns>读取的数据列表</returns>
public IEnumerable <DataValue> ReadHistoryRawDataValues(string tag, DateTime start, DateTime end, uint count = 1,
bool containBound = false)
{
var m_nodeToContinue = new HistoryReadValueId()
{
NodeId = new NodeId(tag),
};
var m_details = new ReadRawModifiedDetails {
StartTime = start,
EndTime = end,
NumValuesPerNode = count,
IsReadModified = false,
ReturnBounds = containBound
};
var nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(m_nodeToContinue);
Session.HistoryRead(
null,
new ExtensionObject(m_details),
TimestampsToReturn.Both,
false,
nodesToRead,
out var results,
out var diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToRead);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
var values = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryData;
foreach (var value in values.DataValues)
{
yield return(value);
}
}
public async Task HistoryReadAsync(bool eventDetails)
{
// there are no historizing nodes, but create some real ones
var testSet = GetTestSetSimulation(Session.NamespaceUris);
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection(
testSet.Select(nodeId => new HistoryReadValueId {
NodeId = nodeId
}));
var response = await Session.HistoryReadAsync(
null,
eventDetails?ReadEventDetails() : ReadRawModifiedDetails(),
TimestampsToReturn.Source,
false,
nodesToRead, CancellationToken.None).ConfigureAwait(false);
Session.ValidateResponse(response.Results, nodesToRead);
Session.ValidateDiagnosticInfos(response.DiagnosticInfos, nodesToRead);
}
/// <summary>
/// Fetches the recent history.
/// </summary>
private void ReadRaw(bool isReadModified)
{
ReadRawModifiedDetails details = new ReadRawModifiedDetails();
details.StartTime = (StartTimeCK.Checked)?StartTimeDP.Value.ToUniversalTime():DateTime.MinValue;
details.EndTime = (EndTimeCK.Checked)?EndTimeDP.Value.ToUniversalTime():DateTime.MinValue;
details.NumValuesPerNode = (MaxReturnValuesCK.Checked)?(uint)MaxReturnValuesNP.Value:0;
details.IsReadModified = isReadModified;
details.ReturnBounds = (isReadModified)?false:ReturnBoundsCK.Checked;
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
HistoryReadValueId nodeToRead = new HistoryReadValueId();
nodeToRead.NodeId = m_nodeId;
nodesToRead.Add(nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Both,
false,
nodesToRead,
out results,
out diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToRead);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
HistoryData values = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryData;
DisplayResults(values);
// save any continuation point.
SaveContinuationPoint(details, nodeToRead, results[0].ContinuationPoint);
}
/// <summary>读取一连串的历史数据，并将其转化成指定的类型</summary>
/// <param name="url">节点的索引</param>
/// <param name="start">开始时间</param>
/// <param name="end">结束时间</param>
/// <param name="count">读取的个数</param>
/// <param name="containBound">是否包含边界</param>
/// <returns></returns>
public IEnumerable <T> ReadHistoryRawDataValues <T>(string url, DateTime start, DateTime end, uint count = 1, bool containBound = false)
{
HistoryReadValueId m_nodeToContinue = new HistoryReadValueId()
{
NodeId = new NodeId(url)
};
ReadRawModifiedDetails rawModifiedDetails = new ReadRawModifiedDetails();
rawModifiedDetails.StartTime = start.ToUniversalTime();
rawModifiedDetails.EndTime = end.ToUniversalTime();
rawModifiedDetails.NumValuesPerNode = count;
int num1 = 0;
rawModifiedDetails.IsReadModified = num1 != 0;
int num2 = containBound ? 1 : 0;
rawModifiedDetails.ReturnBounds = num2 != 0;
ReadRawModifiedDetails m_details = rawModifiedDetails;
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(m_nodeToContinue);
HistoryReadResultCollection results;
DiagnosticInfoCollection diagnosticInfos;
this.m_session.HistoryRead((RequestHeader)null, new ExtensionObject((object)m_details), TimestampsToReturn.Both, false, nodesToRead, out results, out diagnosticInfos);
ClientBase.ValidateResponse((IList)results, (IList)nodesToRead);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, (IList)nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException((ServiceResult)results[0].StatusCode);
}
HistoryData values = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryData;
foreach (DataValue dataValue in (List <DataValue>)values.DataValues)
{
DataValue value = dataValue;
yield return((T)value.Value);
value = (DataValue)null;
}
List <DataValue> .Enumerator enumerator = new List <DataValue> .Enumerator();
}
public void HistoryRead(bool eventDetails)
{
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
// there are no historizing nodes, but create some real ones
var testSet = GetTestSetSimulation(Session.NamespaceUris);
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection(
testSet.Select(nodeId => new HistoryReadValueId {
NodeId = nodeId
}));
var responseHeader = Session.HistoryRead(
null,
eventDetails ? ReadEventDetails() : ReadRawModifiedDetails(),
TimestampsToReturn.Source,
false,
nodesToRead,
out results,
out diagnosticInfos);
Session.ValidateResponse(results, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
}
private void ReleaseContinuationPoints()
{
ReadRawModifiedDetails details = new ReadRawModifiedDetails();
HistoryReadValueId nodeToRead = new HistoryReadValueId();
nodeToRead.NodeId = m_nodeId;
if (m_result != null)
{
nodeToRead.ContinuationPoint = m_result.ContinuationPoint;
}
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Source,
true,
nodesToRead,
out results,
out diagnosticInfos);
Session.ValidateResponse(results, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
m_result = null;
ShowResults();
}
public static void GetData(TimeSeriesBlock tsb)
{
if (session != null)
{
ReadRawModifiedDetails details = new ReadRawModifiedDetails();
details.StartTime = startTime;
details.EndTime = endTime;
details.NumValuesPerNode = 0;
details.IsReadModified = false;
details.ReturnBounds = true;
var nodesToRead = new HistoryReadValueIdCollection();
for (int i = 0; i < tsb.opcNodes.Count; i++)
{
var nodeToRead = new HistoryReadValueId();
string[] split = tsb.opcNodes[i].Split(',');
nodeToRead.NodeId = new NodeId(split[1], (ushort)Convert.ToInt32(split[0]));
nodesToRead.Add(nodeToRead);
}
table = new List <List <object> >();
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
bool loop = true;
while (loop)
{
session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Both,
false,
nodesToRead,
out results,
out diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToRead);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
foreach (var res in results)
{
if (StatusCode.IsBad(res.StatusCode))
{
throw new ServiceResultException(res.StatusCode);
}
}
var historyData1 = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryData;
var historyData2 = ExtensionObject.ToEncodeable(results[1].HistoryData) as HistoryData;
for (int i = 0; i < historyData1.DataValues.Count; i++)
{
var row = new List <object>();
row.Add(historyData1.DataValues[i].SourceTimestamp);
row.Add(historyData1.DataValues[i].Value);
row.Add(historyData2.DataValues[i].Value);
table.Add(row);
}
for (int i = 0; i < results.Count; i++)
{
if (results[i].ContinuationPoint == null || results[i].ContinuationPoint.Length == 0)
{
loop = false;
break;
}
nodesToRead[i].ContinuationPoint = results[i].ContinuationPoint;
}
}
}
}
/// <summary>
/// Fetches the next batch of history.
/// </summary>
private void ReadNext()
{
if (m_nodeToContinue == null)
{
return;
}
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(m_nodeToContinue);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(m_details),
TimestampsToReturn.Both,
false,
nodesToRead,
out results,
out diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToRead);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
HistoryData values = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryData;
DisplayResults(values);
// save any continuation point.
SaveContinuationPoint(m_details, m_nodeToContinue, results[0].ContinuationPoint);
}
/// <summary>
/// Invokes the HistoryRead service.
/// </summary>
public virtual ResponseHeader HistoryRead(
RequestHeader requestHeader,
ExtensionObject historyReadDetails,
TimestampsToReturn timestampsToReturn,
bool releaseContinuationPoints,
HistoryReadValueIdCollection nodesToRead,
out HistoryReadResultCollection results,
out DiagnosticInfoCollection diagnosticInfos)
{
HistoryReadRequest request = new HistoryReadRequest();
HistoryReadResponse response = null;
request.RequestHeader = requestHeader;
request.HistoryReadDetails = historyReadDetails;
request.TimestampsToReturn = timestampsToReturn;
request.ReleaseContinuationPoints = releaseContinuationPoints;
request.NodesToRead = nodesToRead;
UpdateRequestHeader(request, requestHeader == null, "HistoryRead");
try
{
if (UseTransportChannel)
{
IServiceResponse genericResponse = TransportChannel.SendRequest(request);
if (genericResponse == null)
{
throw new ServiceResultException(StatusCodes.BadUnknownResponse);
}
ValidateResponse(genericResponse.ResponseHeader);
response = (HistoryReadResponse)genericResponse;
}
else
{
HistoryReadResponseMessage responseMessage = InnerChannel.HistoryRead(new HistoryReadMessage(request));
if (responseMessage == null || responseMessage.HistoryReadResponse == null)
{
throw new ServiceResultException(StatusCodes.BadUnknownResponse);
}
response = responseMessage.HistoryReadResponse;
ValidateResponse(response.ResponseHeader);
}
results = response.Results;
diagnosticInfos = response.DiagnosticInfos;
}
finally
{
RequestCompleted(request, response, "HistoryRead");
}
return response.ResponseHeader;
}
private void ReadHistory(DateTime StartTime, DateTime EndTime, NodeId node, uint HCount, String DriverName)
{
ReadRawModifiedDetails details = new ReadRawModifiedDetails();
details.StartTime = DateTime.MinValue;
details.EndTime = DateTime.MinValue;
details.IsReadModified = false;
details.NumValuesPerNode = HCount;
details.ReturnBounds = true;
details.StartTime = StartTime.ToUniversalTime();
details.EndTime = EndTime.ToUniversalTime();
HistoryReadValueId nodeToRead = new HistoryReadValueId();
nodeToRead.NodeId = node;
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Source,
false,
nodesToRead,
out results,
out diagnosticInfos);
for (int i = 0; i < results.Count; i++)
{
HistoryData hd_results = ExtensionObject.ToEncodeable(results[i].HistoryData) as HistoryData;
if (hd_results != null)
{
for (int ii = 0; ii < hd_results.DataValues.Count; ii++)
{
StatusCode status = hd_results.DataValues[ii].StatusCode;
string timestamp = hd_results.DataValues[ii].SourceTimestamp.ToLocalTime().ToString("yyyy-MM-dd HH:mm:ss");
string value = Utils.Format("{0}", hd_results.DataValues[ii].WrappedValue);
string quality = Utils.Format("{0}", (StatusCode)status.CodeBits);
string historyInfo = Utils.Format("{0:X2}", (int)status.AggregateBits);
Log("UID:" + S80(node.ToString()) + " \tTime: " + timestamp + "\tValue: " + value); // + ", Q:" + quality + ", histInfo:" + historyInfo);
dr = dt.NewRow();
dr["UID"] = node.ToString();
dr["SourceTime"] = timestamp;
dr["Value"] = value;
dr["Name"] = DriverName;
dt.Rows.Add(dr);
}
}
}
}
private void ReadProcessed()
{
ReadProcessedDetails details = new ReadProcessedDetails();
details.StartTime = StartTimeDP.Value.ToUniversalTime();
details.EndTime = EndTimeDP.Value.ToUniversalTime();
details.ProcessingInterval = (double)ResampleIntervalNP.Value;
NodeId aggregateId = null;
switch ((string)AggregateCB.SelectedItem)
{
case BrowseNames.AggregateFunction_Interpolative: { aggregateId = ObjectIds.AggregateFunction_Interpolative; break; }
case BrowseNames.AggregateFunction_TimeAverage: { aggregateId = ObjectIds.AggregateFunction_TimeAverage; break; }
case BrowseNames.AggregateFunction_Average: { aggregateId = ObjectIds.AggregateFunction_Average; break; }
case BrowseNames.AggregateFunction_Count: { aggregateId = ObjectIds.AggregateFunction_Count; break; }
case BrowseNames.AggregateFunction_Maximum: { aggregateId = ObjectIds.AggregateFunction_Maximum; break; }
case BrowseNames.AggregateFunction_Minimum: { aggregateId = ObjectIds.AggregateFunction_Minimum; break; }
case BrowseNames.AggregateFunction_Total: { aggregateId = ObjectIds.AggregateFunction_Total; break; }
}
details.AggregateType.Add(aggregateId);
HistoryReadValueId nodeToRead = new HistoryReadValueId();
nodeToRead.NodeId = m_nodeId;
if (m_result != null)
{
nodeToRead.ContinuationPoint = m_result.ContinuationPoint;
}
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Source,
false,
nodesToRead,
out results,
out diagnosticInfos);
Session.ValidateResponse(results, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
m_result = results[0];
ShowResults();
}
/// <summary>
/// Returns the UTC timestamp of the first event in the archive.
/// </summary>
private DateTime ReadFirstDate()
{
// read the time of the first event in the archive.
ReadEventDetails details = new ReadEventDetails();
details.StartTime = new DateTime(1970, 1, 1);
details.EndTime = DateTime.MinValue;
details.NumValuesPerNode = 1;
details.Filter = new EventFilter();
details.Filter.AddSelectClause(Opc.Ua.ObjectTypeIds.BaseEventType, Opc.Ua.BrowseNames.Time);
HistoryReadValueId nodeToRead = new HistoryReadValueId();
nodeToRead.NodeId = m_areaId;
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Neither,
false,
nodesToRead,
out results,
out diagnosticInfos);
Session.ValidateResponse(results, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
// get the data.
HistoryEvent data = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryEvent;
// release the continuation point.
if (results[0].ContinuationPoint != null)
{
nodeToRead.ContinuationPoint = results[0].ContinuationPoint;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Neither,
true,
nodesToRead,
out results,
out diagnosticInfos);
Session.ValidateResponse(results, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
}
// check if an event found.
if (data == null || data.Events.Count == 0 || data.Events[0].EventFields.Count == 0)
{
throw new ServiceResultException(StatusCodes.BadNoDataAvailable);
}
// get the event time.
DateTime? eventTime = data.Events[0].EventFields[0].Value as DateTime?;
if (eventTime == null)
{
throw new ServiceResultException(StatusCodes.BadTypeMismatch);
}
// return time as UTC value.
return eventTime.Value;
}
/// <summary>
/// Reads the history of attributes for Bucket Brigade.Int1.
/// </summary>
static void HistoryReadAttributes(Session session)
{
List<string> VariableBrowsePaths = new List<string>();
VariableBrowsePaths.Add("/7:MatrikonOpc Sim Server/7:Simulation Items/7:Bucket Brigade/7:Int1/7:Description");
VariableBrowsePaths.Add("/7:MatrikonOpc Sim Server/7:Simulation Items/7:Bucket Brigade/7:Int1/7:DataType");
VariableBrowsePaths.Add("/7:MatrikonOpc Sim Server/7:Simulation Items/7:Bucket Brigade/7:Int1/7:ITEMID");
// translate browse paths.
IList<NodeOfInterest> nodeIds = GetNodeIds(session, Opc.Ua.Objects.ObjectsFolder,
VariableBrowsePaths.ToArray());
DiagnosticInfoCollection diagnosticInfos;
ReadRawModifiedDetails readDetails = new ReadRawModifiedDetails();
readDetails.StartTime = DateTime.MinValue;
readDetails.EndTime = DateTime.Now;
readDetails.IsReadModified = false;
readDetails.NumValuesPerNode = 100;
readDetails.ReturnBounds = false;
ExtensionObject eo = new ExtensionObject(readDetails.TypeId, readDetails);
HistoryReadValueIdCollection idCollection = new HistoryReadValueIdCollection();
for (int ii = 0; ii < nodeIds.Count; ii++)
{
HistoryReadValueId readValueId = new HistoryReadValueId();
readValueId.NodeId = nodeIds[ii].NodeId;
readValueId.Processed = false;
idCollection.Add(readValueId);
}
HistoryReadResultCollection historyReadResults;
ResponseHeader responseHeader =
session.HistoryRead(null, eo, TimestampsToReturn.Both, true,
idCollection, out historyReadResults, out diagnosticInfos);
// process results.
for (int ii = 0; ii < historyReadResults.Count; ii++)
{
HistoryReadResult historyReadResult = historyReadResults[ii];
HistoryData historyData = null;
DataValueCollection dataValues = null;
if (historyReadResult.HistoryData != null)
{
historyData = ExtensionObject.ToEncodeable(historyReadResult.HistoryData) as HistoryData;
dataValues = historyData.DataValues;
}
ServiceResult result = Session.GetResult(historyReadResult.StatusCode, ii, diagnosticInfos, responseHeader);
Console.WriteLine("\nHistoryRead result code for {0}: {1}", VariableBrowsePaths[ii], result.StatusCode.ToString());
if (StatusCode.IsBad(historyReadResult.StatusCode))
{
continue;
}
if (dataValues == null)
{
Console.WriteLine("dataValues == null");
continue;
}
for (int jj = 0; jj < dataValues.Count; jj++)
{
DataValue dataValue = dataValues[jj];
// write value.
Console.WriteLine("\t{0}: V={1}",jj, dataValue.Value == null ? "null" : dataValue.Value.ToString());
Console.WriteLine("\t Q={0}, SrvT={1}, SrcT={2}\n",
dataValue.StatusCode.ToString(), dataValue.ServerTimestamp, dataValue.SourceTimestamp);
}
}
}
static void HistoryReadProcessed(Session session)
{
// translate browse paths.
IList<NodeOfInterest> nodeIds = GetNodeIds(session, Opc.Ua.Objects.ObjectsFolder,
VariableBrowsePaths.ToArray());
DiagnosticInfoCollection diagnosticInfos;
NodeId aggregateNodeId = null;
RequestHeader rh = null;
ViewDescription vd = null;
ReferenceDescriptionCollection references;
byte[] cp;
//Get the list of avalilable aggregate functions:
session.Browse(
rh,
vd,
Opc.Ua.ObjectIds.Server_ServerCapabilities_AggregateFunctions,
1000,
BrowseDirection.Forward,
ReferenceTypeIds.Aggregates,
false,
0,
out cp,
out references);
Console.WriteLine("{0} aggregates are detected:", references.Count);
//Print the list of avalible aggregates:
int i = 0;
foreach (ReferenceDescription rd in references)
{
i++;
Console.WriteLine("{0}. {1} {2}", i, rd.BrowseName, rd.NodeId.Identifier.ToString());
}
//Select aggregate function:
Console.WriteLine("\nEnter aggregate number: ");
string str = Console.ReadLine();
i = System.Int16.Parse(str);
if (i > 0 && i <= references.Count)
{
aggregateNodeId = ExpandedNodeId.ToNodeId(references[i - 1].NodeId, session.NamespaceUris);
}
//Prepare arguments to pass to read processed history
ReadProcessedDetails readDetails = new ReadProcessedDetails();
readDetails.StartTime = new DateTime(2008, 1, 1, 12, 0, 0);
readDetails.EndTime = new DateTime(2008, 1, 1, 12, 0, 12);
readDetails.AggregateType = new NodeIdCollection(nodeIds.Count);
for (int x = 0; x < nodeIds.Count; x++)
{
readDetails.AggregateType.Add (aggregateNodeId);
}
readDetails.ProcessingInterval = 500; //500 milliseconds
ExtensionObject eo = new ExtensionObject(readDetails.TypeId, readDetails);
HistoryReadValueIdCollection idCollection = new HistoryReadValueIdCollection();
for (int ii = 0; ii < nodeIds.Count; ii++)
{
HistoryReadValueId readValueId = new HistoryReadValueId();
readValueId.NodeId = nodeIds[ii].NodeId;
readValueId.Processed = true;
idCollection.Add(readValueId);
}
HistoryReadResultCollection historyReadResults;
//Read processed history:
ResponseHeader responseHeader =
session.HistoryRead(null, eo, TimestampsToReturn.Both, true,
idCollection, out historyReadResults, out diagnosticInfos);
//Print results:
for (int ii = 0; ii < historyReadResults.Count; ii++)
{
HistoryReadResult historyReadResult = historyReadResults[ii];
ServiceResult result = Session.GetResult(historyReadResult.StatusCode, ii, diagnosticInfos, responseHeader);
HistoryData historyData = null;
DataValueCollection dataValues = null;
if ( !(historyReadResult.HistoryData == null) )
{
historyData = ExtensionObject.ToEncodeable(historyReadResult.HistoryData) as HistoryData;
if (historyData == null)
dataValues = null;
else
dataValues = historyData.DataValues;
}
Console.WriteLine("\nHistoryRead result code for {0}: {1}", VariableBrowsePaths[ii], result.StatusCode.ToString());
if (dataValues == null)
{
Console.WriteLine("dataValues == null");
continue;
}
for (int jj = 0; jj < dataValues.Count; jj++)
{
DataValue dataValue = dataValues[jj];
if (dataValue == null)
continue;
// write value.
Console.WriteLine("{0}: V={1}, Q={2}, SrvT={3}, SrcT={4}", jj,
dataValue.Value == null ? "null" : dataValue.Value.ToString(),
dataValue.StatusCode.ToString(),
dataValue.ServerTimestamp, dataValue.SourceTimestamp);
}
}
}
/// <summary>
/// Reads the history of a set of items.
/// </summary>
public virtual void HistoryRead(
OperationContext context,
ExtensionObject historyReadDetails,
TimestampsToReturn timestampsToReturn,
bool releaseContinuationPoints,
HistoryReadValueIdCollection nodesToRead,
out HistoryReadResultCollection results,
out DiagnosticInfoCollection diagnosticInfos)
{
// validate history details parameter.
if (ExtensionObject.IsNull(historyReadDetails))
{
throw new ServiceResultException(StatusCodes.BadHistoryOperationInvalid);
}
HistoryReadDetails details = historyReadDetails.Body as HistoryReadDetails;
if (details == null)
{
throw new ServiceResultException(StatusCodes.BadHistoryOperationUnsupported);
}
// create result lists.
bool diagnosticsExist = false;
results = new HistoryReadResultCollection(nodesToRead.Count);
diagnosticInfos = new DiagnosticInfoCollection(nodesToRead.Count);
// pre-validate items.
bool validItems = false;
for (int ii = 0; ii < nodesToRead.Count; ii++)
{
HistoryReadResult result = null;
DiagnosticInfo diagnosticInfo = null;
// pre-validate and pre-parse parameter.
ServiceResult error = HistoryReadValueId.Validate(nodesToRead[ii]);
// return error status.
if (ServiceResult.IsBad(error))
{
nodesToRead[ii].Processed = true;
result = new HistoryReadResult();
result.StatusCode = error.Code;
// add diagnostics if requested.
if ((context.DiagnosticsMask & DiagnosticsMasks.OperationAll) != 0)
{
diagnosticInfo = ServerUtils.CreateDiagnosticInfo(m_server, context, error);
diagnosticsExist = true;
}
}
// found at least one valid item.
else
{
nodesToRead[ii].Processed = false;
validItems = true;
}
results.Add(result);
diagnosticInfos.Add(diagnosticInfo);
}
// call each node manager.
if (validItems)
{
List<ServiceResult> errors = new List<ServiceResult>(results.Count);
for (int ii = 0; ii < nodesToRead.Count; ii++)
{
errors.Add(null);
}
foreach (INodeManager nodeManager in m_nodeManagers)
{
nodeManager.HistoryRead(
context,
details,
timestampsToReturn,
releaseContinuationPoints,
nodesToRead,
results,
errors);
}
for (int ii = 0; ii < nodesToRead.Count; ii++)
{
HistoryReadResult result = results[ii];
// set an error code for nodes that were not handled by any node manager.
if (!nodesToRead[ii].Processed)
{
nodesToRead[ii].Processed = true;
result = results[ii] = new HistoryReadResult();
result.StatusCode = StatusCodes.BadNodeIdUnknown;
errors[ii] = results[ii].StatusCode;
}
// update the diagnostic info and ensure the status code in the result is the same as the error code.
if (errors[ii] != null && errors[ii].Code != StatusCodes.Good)
{
if (result == null)
{
result = results[ii] = new HistoryReadResult();
}
result.StatusCode = errors[ii].Code;
// add diagnostics if requested.
if ((context.DiagnosticsMask & DiagnosticsMasks.OperationAll) != 0)
{
diagnosticInfos[ii] = ServerUtils.CreateDiagnosticInfo(m_server, context, errors[ii]);
diagnosticsExist = true;
}
}
}
}
// clear the diagnostics array if no diagnostics requested or no errors occurred.
UpdateDiagnostics(context, diagnosticsExist, ref diagnosticInfos);
}
public async Task <List <OPCUATag> > ReadRaw(string serverUrl, bool bIsReadModified, DateTime dateStartDateTime, DateTime dateEndDateTime, int iMaxReturnVal, List <string> lstNodeId)
{
List <OPCUATag> tags = new List <OPCUATag>();
HistoryReadResultCollection objHistoryReadResult = new HistoryReadResultCollection();
try
{
Session session = await GetSessionAsync(serverUrl);
ReadRawModifiedDetails details = new ReadRawModifiedDetails();
details.StartTime = DateTime.MinValue;
details.EndTime = DateTime.MinValue;
details.IsReadModified = bIsReadModified;
details.NumValuesPerNode = 0;
details.StartTime = dateStartDateTime.ToUniversalTime();
details.EndTime = dateEndDateTime.ToUniversalTime();
details.NumValuesPerNode = (uint)iMaxReturnVal;
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
foreach (string strNodeId in lstNodeId)//OA-2018-03-13
{
HistoryReadValueId nodeToRead = new HistoryReadValueId();
nodeToRead.NodeId = (NodeId)strNodeId;//_reference.NodeId;
nodesToRead.Add(nodeToRead);
}
HistoryReadResultCollection HistoryResults = null;
DiagnosticInfoCollection diagnosticInfos = null;
session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Source,
false,
nodesToRead,
out HistoryResults,
out diagnosticInfos);
Session.ValidateResponse(HistoryResults, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
#region Prepare result
objHistoryReadResult = HistoryResults;
if (objHistoryReadResult.Count > 0)
{
var m_index = 0;
foreach (var result in objHistoryReadResult)
{
HistoryData results = ExtensionObject.ToEncodeable(result.HistoryData) as HistoryData;
if (results == null)
{
return(tags);
}
for (int ii = 0; ii < results.DataValues.Count; ii++)
{
StatusCode status = results.DataValues[ii].StatusCode;
string index = Utils.Format("[{0}]", m_index++);
var timestamp = results.DataValues[ii].SourceTimestamp.ToLocalTime();
var sec = results.DataValues[ii].SourceTimestamp.Millisecond;
string value = Utils.Format("{0}", results.DataValues[ii].WrappedValue);
string quality = Utils.Format("{0}", (StatusCode)status.CodeBits);
string historyInfo = Utils.Format("{0:X2}", (int)status.AggregateBits);
var date = String.Format("{0}.{1}", timestamp.ToString("MM/dd/yyyy HH:mm:ss"), sec.ToString().PadLeft(3, '0'));
OPCUATag tag = new OPCUATag(index, date, value, quality);
tags.Add(tag);
}
}
}
#endregion
return(tags);
}
catch (Exception e)
{
return(tags);
}
}
/// <summary>
/// Reads the next batch of values from the server.
/// </summary>
private bool ReadNext(
Session session,
ExtensionObject details,
List<HdaReadRequest> requests,
bool releaseContinuationPoints)
{
// get the value.
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
for (int ii = 0; ii < requests.Count; ii++)
{
HdaReadRequest request = requests[ii];
if (request.IsComplete || request.Error < 0)
{
continue;
}
if (NodeId.IsNull(request.NodeId))
{
request.Error = ResultIds.S_NODATA;
continue;
}
HistoryReadValueId nodeToRead = new HistoryReadValueId();
nodeToRead.NodeId = request.NodeId;
nodeToRead.ContinuationPoint = request.ContinuationPoint;
nodeToRead.Handle = request;
nodesToRead.Add(nodeToRead);
}
// check if something to do.
if (nodesToRead.Count == 0)
{
return false;
}
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
session.HistoryRead(
null,
details,
TimestampsToReturn.Source,
releaseContinuationPoints,
nodesToRead,
out results,
out diagnosticInfos);
Session.ValidateResponse(results, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
// check if nothing more to do.
if (releaseContinuationPoints)
{
return false;
}
// process results.
bool continuationPoints = false;
for (int ii = 0; ii < nodesToRead.Count; ii++)
{
HdaReadRequest request = (HdaReadRequest)nodesToRead[ii].Handle;
if (request.Values == null)
{
request.Values = new List<DaValue>();
}
request.Error = ProcessReadResults(
session,
results[ii],
request.AttributeId,
request.Values,
request.ModificationInfos);
request.ContinuationPoint = results[ii].ContinuationPoint;
// check if continuation point provided.
if (request.ContinuationPoint != null && request.ContinuationPoint.Length > 0)
{
request.Error = ResultIds.S_MOREDATA;
continuationPoints = true;
}
else
{
request.IsComplete = true;
}
}
return continuationPoints;
}
/// <summary>
/// Fetches the recent history.
/// </summary>
private void ReadRaw(bool isReadModified)
{
ReadRawModifiedDetails details = new ReadRawModifiedDetails();
details.StartTime =(StartTimeCK.Checked)?StartTimeDP.Value.ToUniversalTime():DateTime.MinValue;
details.EndTime = (EndTimeCK.Checked)?EndTimeDP.Value.ToUniversalTime():DateTime.MinValue;
details.NumValuesPerNode = (MaxReturnValuesCK.Checked)?(uint)MaxReturnValuesNP.Value:0;
details.IsReadModified = isReadModified;
details.ReturnBounds = (isReadModified)?false:ReturnBoundsCK.Checked;
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
HistoryReadValueId nodeToRead = new HistoryReadValueId();
nodeToRead.NodeId = m_nodeId;
nodesToRead.Add(nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Both,
false,
nodesToRead,
out results,
out diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToRead);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
HistoryData values = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryData;
DisplayResults(values);
// save any continuation point.
SaveContinuationPoint(details, nodeToRead, results[0].ContinuationPoint);
}
/// <summary>
/// Begins an asynchronous invocation of the HistoryRead service.
/// </summary>
public IAsyncResult BeginHistoryRead(
RequestHeader requestHeader,
ExtensionObject historyReadDetails,
TimestampsToReturn timestampsToReturn,
bool releaseContinuationPoints,
HistoryReadValueIdCollection nodesToRead,
AsyncCallback callback,
object asyncState)
{
HistoryReadRequest request = new HistoryReadRequest();
request.RequestHeader = requestHeader;
request.HistoryReadDetails = historyReadDetails;
request.TimestampsToReturn = timestampsToReturn;
request.ReleaseContinuationPoints = releaseContinuationPoints;
request.NodesToRead = nodesToRead;
UpdateRequestHeader(request, requestHeader == null, "HistoryRead");
if (UseTransportChannel)
{
return TransportChannel.BeginSendRequest(request, callback, asyncState);
}
return InnerChannel.BeginHistoryRead(new HistoryReadMessage(request), callback, asyncState);
}
/// <summary>
/// Fetches the recent history.
/// </summary>
private void ReadAtTime()
{
ReadAtTimeDetails details = new ReadAtTimeDetails();
// generate times
DateTime startTime = StartTimeDP.Value.ToUniversalTime();
for (int ii = 0; ii < MaxReturnValuesNP.Value; ii++)
{
details.ReqTimes.Add(startTime.AddMilliseconds((double)(ii*TimeStepNP.Value)));
}
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
HistoryReadValueId nodeToRead = new HistoryReadValueId();
nodeToRead.NodeId = m_nodeId;
nodesToRead.Add(nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Both,
false,
nodesToRead,
out results,
out diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToRead);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
HistoryData values = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryData;
DisplayResults(values);
// save any continuation point.
SaveContinuationPoint(details, nodeToRead, results[0].ContinuationPoint);
}
/// <summary>
/// Fetches the recent history.
/// </summary>
private void ReadProcessed()
{
AvailableAggregate aggregate = (AvailableAggregate)AggregateCB.SelectedItem;
ReadProcessedDetails details = new ReadProcessedDetails();
details.StartTime = StartTimeDP.Value.ToUniversalTime();
details.EndTime = EndTimeDP.Value.ToUniversalTime();
details.ProcessingInterval = (double)ResampleIntervalNP.Value;
details.AggregateType.Add(aggregate.NodeId);
details.AggregateConfiguration.UseServerCapabilitiesDefaults = true;
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
HistoryReadValueId nodeToRead = new HistoryReadValueId();
nodeToRead.NodeId = m_nodeId;
nodesToRead.Add(nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Both,
false,
nodesToRead,
out results,
out diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToRead);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
HistoryData values = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryData;
DisplayResults(values);
// save any continuation point.
SaveContinuationPoint(details, nodeToRead, results[0].ContinuationPoint);
}
/// <summary>
/// Invokes the HistoryRead service.
/// </summary>
/// <param name="requestHeader">The request header.</param>
/// <param name="historyReadDetails">The history read details.</param>
/// <param name="timestampsToReturn">The timestamps to return.</param>
/// <param name="releaseContinuationPoints">if set to <c>true</c> continuation points are released.</param>
/// <param name="nodesToRead">The nodes to read.</param>
/// <param name="results">The results.</param>
/// <param name="diagnosticInfos">The diagnostic information for the results.</param>
/// <returns>
/// Returns a <see cref="ResponseHeader"/> object
/// </returns>
public override ResponseHeader HistoryRead(
RequestHeader requestHeader,
ExtensionObject historyReadDetails,
TimestampsToReturn timestampsToReturn,
bool releaseContinuationPoints,
HistoryReadValueIdCollection nodesToRead,
out HistoryReadResultCollection results,
out DiagnosticInfoCollection diagnosticInfos)
{
OperationContext context = ValidateRequest(requestHeader, RequestType.HistoryRead);
try
{
if (nodesToRead == null || nodesToRead.Count == 0)
{
throw new ServiceResultException(StatusCodes.BadNothingToDo);
}
m_serverInternal.NodeManager.HistoryRead(
context,
historyReadDetails,
timestampsToReturn,
releaseContinuationPoints,
nodesToRead,
out results,
out diagnosticInfos);
return CreateResponse(requestHeader, context.StringTable);
}
catch (ServiceResultException e)
{
lock (ServerInternal.DiagnosticsLock)
{
ServerInternal.ServerDiagnostics.RejectedRequestsCount++;
if (IsSecurityError(e.StatusCode))
{
ServerInternal.ServerDiagnostics.SecurityRejectedRequestsCount++;
}
}
throw TranslateException(context, e);
}
finally
{
OnRequestComplete(context);
}
}
/// <summary>
/// Returns the UTC timestamp of the first event in the archive.
/// </summary>
private DateTime ReadFirstDate()
{
// read the time of the first event in the archive.
ReadEventDetails details = new ReadEventDetails();
details.StartTime = new DateTime(1970, 1, 1);
details.EndTime = DateTime.MinValue;
details.NumValuesPerNode = 1;
details.Filter = new EventFilter();
details.Filter.AddSelectClause(Opc.Ua.ObjectTypeIds.BaseEventType, Opc.Ua.BrowseNames.Time);
HistoryReadValueId nodeToRead = new HistoryReadValueId();
nodeToRead.NodeId = m_areaId;
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Neither,
false,
nodesToRead,
out results,
out diagnosticInfos);
Session.ValidateResponse(results, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
// get the data.
HistoryEvent data = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryEvent;
// release the continuation point.
if (results[0].ContinuationPoint != null)
{
nodeToRead.ContinuationPoint = results[0].ContinuationPoint;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Neither,
true,
nodesToRead,
out results,
out diagnosticInfos);
Session.ValidateResponse(results, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
}
// check if an event found.
if (data == null || data.Events.Count == 0 || data.Events[0].EventFields.Count == 0)
{
throw new ServiceResultException(StatusCodes.BadNoDataAvailable);
}
// get the event time.
DateTime?eventTime = data.Events[0].EventFields[0].Value as DateTime?;
if (eventTime == null)
{
throw new ServiceResultException(StatusCodes.BadTypeMismatch);
}
// return time as UTC value.
return(eventTime.Value);
}
/// <summary>
/// Reads the history of values for a set of variables at given time.
/// </summary>
static void HistoryReadAtTime(Session session)
{
// translate browse paths.
IList<NodeOfInterest> nodeIds = GetNodeIds(session, Opc.Ua.Objects.ObjectsFolder,
VariableBrowsePaths.ToArray());
DiagnosticInfoCollection diagnosticInfos;
ReadAtTimeDetails readDetails = new ReadAtTimeDetails();
readDetails.ReqTimes = new DateTimeCollection();
for (int jj = 0; jj < 10; jj++)
{
readDetails.ReqTimes.Add(new DateTime(2008, 01, 01, 12, 0, jj));
readDetails.ReqTimes.Add(new DateTime(2008, 01, 01, 12, 0, jj, (int) 500));
}
ExtensionObject eo = new ExtensionObject(readDetails.TypeId, readDetails);
HistoryReadValueIdCollection idCollection = new HistoryReadValueIdCollection();
for (int ii = 0; ii < nodeIds.Count; ii++)
{
HistoryReadValueId readValueId = new HistoryReadValueId();
readValueId.NodeId = nodeIds[ii].NodeId;
readValueId.Processed = false;
idCollection.Add(readValueId);
}
HistoryReadResultCollection historyReadResults;
ResponseHeader responseHeader =
session.HistoryRead(null, eo, TimestampsToReturn.Both, true,
idCollection, out historyReadResults, out diagnosticInfos);
// process results.
for (int ii = 0; ii < historyReadResults.Count; ii++)
{
HistoryReadResult historyReadResult = historyReadResults[ii];
HistoryData historyData = null;
DataValueCollection dataValues = null;
if (historyReadResult.HistoryData != null)
{
historyData = ExtensionObject.ToEncodeable(historyReadResult.HistoryData) as HistoryData;
dataValues = historyData.DataValues;
}
ServiceResult result = Session.GetResult(historyReadResult.StatusCode, ii, diagnosticInfos, responseHeader);
Console.WriteLine("HistoryRead result code for {0}: {1}", VariableBrowsePaths[ii], result.StatusCode.ToString());
if (StatusCode.IsBad(historyReadResult.StatusCode))
{
continue;
}
if (dataValues == null)
{
Console.WriteLine("dataValues == null");
continue;
}
for (int jj = 0; jj < dataValues.Count; jj++)
{
DataValue dataValue = dataValues[jj];
// write value.
Console.WriteLine("{0}: V={1}, Q={2}, SrvT={3}, SrcT={4}", jj,
dataValue.Value == null ? "null" : dataValue.Value.ToString(),
dataValue.StatusCode.ToString(),
dataValue.ServerTimestamp, dataValue.SourceTimestamp);
}
}
}
private void ReleaseContinuationPoints()
{
ReadRawModifiedDetails details = new ReadRawModifiedDetails();
HistoryReadValueId nodeToRead = new HistoryReadValueId();
nodeToRead.NodeId = m_nodeId;
if (m_result != null)
{
nodeToRead.ContinuationPoint = m_result.ContinuationPoint;
}
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Source,
true,
nodesToRead,
out results,
out diagnosticInfos);
Session.ValidateResponse(results, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
m_result = null;
ShowResults();
}
/// <summary>
/// Releases any continuation points.
/// </summary>
private void ReleaseContinuationPoints()
{
if (m_details != null)
{
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(m_nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(m_details),
TimestampsToReturn.Neither,
true,
nodesToRead,
out results,
out diagnosticInfos);
Session.ValidateResponse(results, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
NextBTN.Visible = false;
StopBTN.Enabled = false;
GoBTN.Visible = true;
m_details = null;
m_nodeToRead = null;
}
}
/// <summary>
/// Fetches the recent history.
/// </summary>
private void ReadHistory(ReadEventDetails details, NodeId areaId)
{
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
HistoryReadValueId nodeToRead = new HistoryReadValueId();
nodeToRead.NodeId = areaId;
nodesToRead.Add(nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Neither,
false,
nodesToRead,
out results,
out diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToRead);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
HistoryEvent events = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryEvent;
AddEventHistory(events);
// release continuation points.
if (results[0].ContinuationPoint != null && results[0].ContinuationPoint.Length > 0)
{
nodeToRead.ContinuationPoint = results[0].ContinuationPoint;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Neither,
true,
nodesToRead,
out results,
out diagnosticInfos);
}
}
/// <summary>
/// Continues a read operation.
/// </summary>
private void ReadNext(ReadEventDetails details, HistoryReadValueId nodeToRead)
{
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
ResponseHeader responseHeader = m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Neither,
false,
nodesToRead,
out results,
out diagnosticInfos);
Session.ValidateResponse(results, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw ServiceResultException.Create(results[0].StatusCode, 0, diagnosticInfos, responseHeader.StringTable);
}
// display results.
HistoryEvent data = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryEvent;
ResultsLV.AddEventHistory(data);
// check if a continuation point exists.
if (results[0].ContinuationPoint != null && results[0].ContinuationPoint.Length > 0)
{
nodeToRead.ContinuationPoint = results[0].ContinuationPoint;
NextBTN.Visible = true;
StopBTN.Enabled = true;
GoBTN.Visible = false;
m_details = details;
m_nodeToRead = nodeToRead;
}
// all done.
else
{
NextBTN.Visible = false;
StopBTN.Enabled = false;
GoBTN.Visible = true;
m_details = null;
m_nodeToRead = null;
}
}
private void ReadRaw(bool isReadModified)
{
ReadRawModifiedDetails details = new ReadRawModifiedDetails();
details.StartTime = DateTime.MinValue;
details.EndTime = DateTime.MinValue;
details.IsReadModified = isReadModified;
details.NumValuesPerNode = 0;
details.ReturnBounds = ReturnBoundsCK.Checked;
if (StartTimeCK.Checked)
{
details.StartTime = StartTimeDP.Value.ToUniversalTime();
}
if (EndTimeCK.Checked)
{
details.EndTime = EndTimeDP.Value.ToUniversalTime();
}
if (MaxReturnValuesCK.Checked)
{
details.NumValuesPerNode = (uint)MaxReturnValuesNP.Value;
}
HistoryReadValueId nodeToRead = new HistoryReadValueId();
nodeToRead.NodeId = m_nodeId;
if (m_result != null)
{
nodeToRead.ContinuationPoint = m_result.ContinuationPoint;
}
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Source,
false,
nodesToRead,
out results,
out diagnosticInfos);
Session.ValidateResponse(results, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
m_result = results[0];
ShowResults();
}
private void ReadRaw(bool isReadModified)
{
ReadRawModifiedDetails details = new ReadRawModifiedDetails();
details.StartTime = DateTime.MinValue;
details.EndTime = DateTime.MinValue;
details.IsReadModified = isReadModified;
details.NumValuesPerNode = 0;
details.ReturnBounds = ReturnBoundsCK.Checked;
if (StartTimeCK.Checked)
{
details.StartTime = StartTimeDP.Value.ToUniversalTime();
}
if (EndTimeCK.Checked)
{
details.EndTime = EndTimeDP.Value.ToUniversalTime();
}
if (MaxReturnValuesCK.Checked)
{
details.NumValuesPerNode = (uint)MaxReturnValuesNP.Value;
}
HistoryReadValueId nodeToRead = new HistoryReadValueId();
nodeToRead.NodeId = m_nodeId;
if (m_result != null)
{
nodeToRead.ContinuationPoint = m_result.ContinuationPoint;
}
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Source,
false,
nodesToRead,
out results,
out diagnosticInfos);
Session.ValidateResponse(results, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
m_result = results[0];
ShowResults();
}
private void ReadProcessed()
{
ReadProcessedDetails details = new ReadProcessedDetails();
details.StartTime = StartTimeDP.Value.ToUniversalTime();
details.EndTime = EndTimeDP.Value.ToUniversalTime();
details.ProcessingInterval = (double)ResampleIntervalNP.Value;
NodeId aggregateId = null;
switch ((string)AggregateCB.SelectedItem)
{
case BrowseNames.AggregateFunction_Interpolative: { aggregateId = ObjectIds.AggregateFunction_Interpolative; break; }
case BrowseNames.AggregateFunction_TimeAverage: { aggregateId = ObjectIds.AggregateFunction_TimeAverage; break; }
case BrowseNames.AggregateFunction_Average: { aggregateId = ObjectIds.AggregateFunction_Average; break; }
case BrowseNames.AggregateFunction_Count: { aggregateId = ObjectIds.AggregateFunction_Count; break; }
case BrowseNames.AggregateFunction_Maximum: { aggregateId = ObjectIds.AggregateFunction_Maximum; break; }
case BrowseNames.AggregateFunction_Minimum: { aggregateId = ObjectIds.AggregateFunction_Minimum; break; }
case BrowseNames.AggregateFunction_Total: { aggregateId = ObjectIds.AggregateFunction_Total; break; }
}
details.AggregateType.Add(aggregateId);
HistoryReadValueId nodeToRead = new HistoryReadValueId();
nodeToRead.NodeId = m_nodeId;
if (m_result != null)
{
nodeToRead.ContinuationPoint = m_result.ContinuationPoint;
}
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Source,
false,
nodesToRead,
out results,
out diagnosticInfos);
Session.ValidateResponse(results, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
throw new ServiceResultException(results[0].StatusCode);
}
m_result = results[0];
ShowResults();
}
/// <summary>
/// Invokes the HistoryRead service.
/// </summary>
public virtual ResponseHeader HistoryRead(
RequestHeader requestHeader,
ExtensionObject historyReadDetails,
TimestampsToReturn timestampsToReturn,
bool releaseContinuationPoints,
HistoryReadValueIdCollection nodesToRead,
out HistoryReadResultCollection results,
out DiagnosticInfoCollection diagnosticInfos)
{
results = null;
diagnosticInfos = null;
ValidateRequest(requestHeader);
// Insert implementation.
return CreateResponse(requestHeader, StatusCodes.BadServiceUnsupported);
}
/// <summary>
/// Reads the history of attributes for Bucket Brigade.Int1.
/// </summary>
static void HistoryReadAttributes(Session session)
{
List <string> VariableBrowsePaths = new List <string>();
VariableBrowsePaths.Add("/7:MatrikonOpc Sim Server/7:Simulation Items/7:Bucket Brigade/7:Int1/7:Description");
VariableBrowsePaths.Add("/7:MatrikonOpc Sim Server/7:Simulation Items/7:Bucket Brigade/7:Int1/7:DataType");
VariableBrowsePaths.Add("/7:MatrikonOpc Sim Server/7:Simulation Items/7:Bucket Brigade/7:Int1/7:ITEMID");
// translate browse paths.
IList <NodeOfInterest> nodeIds = GetNodeIds(session, Opc.Ua.Objects.ObjectsFolder,
VariableBrowsePaths.ToArray());
DiagnosticInfoCollection diagnosticInfos;
ReadRawModifiedDetails readDetails = new ReadRawModifiedDetails();
readDetails.StartTime = DateTime.MinValue;
readDetails.EndTime = DateTime.Now;
readDetails.IsReadModified = false;
readDetails.NumValuesPerNode = 100;
readDetails.ReturnBounds = false;
ExtensionObject eo = new ExtensionObject(readDetails.TypeId, readDetails);
HistoryReadValueIdCollection idCollection = new HistoryReadValueIdCollection();
for (int ii = 0; ii < nodeIds.Count; ii++)
{
HistoryReadValueId readValueId = new HistoryReadValueId();
readValueId.NodeId = nodeIds[ii].NodeId;
readValueId.Processed = false;
idCollection.Add(readValueId);
}
HistoryReadResultCollection historyReadResults;
ResponseHeader responseHeader =
session.HistoryRead(null, eo, TimestampsToReturn.Both, true,
idCollection, out historyReadResults, out diagnosticInfos);
// process results.
for (int ii = 0; ii < historyReadResults.Count; ii++)
{
HistoryReadResult historyReadResult = historyReadResults[ii];
HistoryData historyData = null;
DataValueCollection dataValues = null;
if (historyReadResult.HistoryData != null)
{
historyData = ExtensionObject.ToEncodeable(historyReadResult.HistoryData) as HistoryData;
dataValues = historyData.DataValues;
}
ServiceResult result = Session.GetResult(historyReadResult.StatusCode, ii, diagnosticInfos, responseHeader);
Console.WriteLine("\nHistoryRead result code for {0}: {1}", VariableBrowsePaths[ii], result.StatusCode.ToString());
if (StatusCode.IsBad(historyReadResult.StatusCode))
{
continue;
}
if (dataValues == null)
{
Console.WriteLine("dataValues == null");
continue;
}
for (int jj = 0; jj < dataValues.Count; jj++)
{
DataValue dataValue = dataValues[jj];
// write value.
Console.WriteLine("\t{0}: V={1}", jj, dataValue.Value == null ? "null" : dataValue.Value.ToString());
Console.WriteLine("\t Q={0}, SrvT={1}, SrcT={2}\n",
dataValue.StatusCode.ToString(), dataValue.ServerTimestamp, dataValue.SourceTimestamp);
}
}
}
/// <summary>
/// Reads the last date in the archive (truncates milliseconds and converts to local).
/// </summary>
private DateTime ReadLastDate()
{
ReadRawModifiedDetails details = new ReadRawModifiedDetails();
details.StartTime = DateTime.MinValue;
details.EndTime = DateTime.UtcNow.AddDays(1);
details.NumValuesPerNode = 1;
details.IsReadModified = false;
details.ReturnBounds = false;
HistoryReadValueId nodeToRead = new HistoryReadValueId();
nodeToRead.NodeId = m_nodeId;
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Source,
false,
nodesToRead,
out results,
out diagnosticInfos);
Session.ValidateResponse(results, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
return(DateTime.MinValue);
}
HistoryData data = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryData;
if (results == null)
{
return(DateTime.MinValue);
}
DateTime endTime = data.DataValues[0].SourceTimestamp;
if (results[0].ContinuationPoint != null && results[0].ContinuationPoint.Length > 0)
{
nodeToRead.ContinuationPoint = results[0].ContinuationPoint;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Source,
true,
nodesToRead,
out results,
out diagnosticInfos);
Session.ValidateResponse(results, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
}
endTime = new DateTime(endTime.Year, endTime.Month, endTime.Day, endTime.Hour, endTime.Minute, endTime.Second, 0, DateTimeKind.Utc);
endTime = endTime.AddSeconds(1);
endTime = endTime.ToLocalTime();
return(endTime);
}
/// <summary>
/// Reads the history of values for a set of variables at given time.
/// </summary>
static void HistoryReadAtTime(Session session)
{
// translate browse paths.
IList <NodeOfInterest> nodeIds = GetNodeIds(session, Opc.Ua.Objects.ObjectsFolder,
VariableBrowsePaths.ToArray());
DiagnosticInfoCollection diagnosticInfos;
ReadAtTimeDetails readDetails = new ReadAtTimeDetails();
readDetails.ReqTimes = new DateTimeCollection();
for (int jj = 0; jj < 10; jj++)
{
readDetails.ReqTimes.Add(new DateTime(2008, 01, 01, 12, 0, jj));
readDetails.ReqTimes.Add(new DateTime(2008, 01, 01, 12, 0, jj, (int)500));
}
ExtensionObject eo = new ExtensionObject(readDetails.TypeId, readDetails);
HistoryReadValueIdCollection idCollection = new HistoryReadValueIdCollection();
for (int ii = 0; ii < nodeIds.Count; ii++)
{
HistoryReadValueId readValueId = new HistoryReadValueId();
readValueId.NodeId = nodeIds[ii].NodeId;
readValueId.Processed = false;
idCollection.Add(readValueId);
}
HistoryReadResultCollection historyReadResults;
ResponseHeader responseHeader =
session.HistoryRead(null, eo, TimestampsToReturn.Both, true,
idCollection, out historyReadResults, out diagnosticInfos);
// process results.
for (int ii = 0; ii < historyReadResults.Count; ii++)
{
HistoryReadResult historyReadResult = historyReadResults[ii];
HistoryData historyData = null;
DataValueCollection dataValues = null;
if (historyReadResult.HistoryData != null)
{
historyData = ExtensionObject.ToEncodeable(historyReadResult.HistoryData) as HistoryData;
dataValues = historyData.DataValues;
}
ServiceResult result = Session.GetResult(historyReadResult.StatusCode, ii, diagnosticInfos, responseHeader);
Console.WriteLine("HistoryRead result code for {0}: {1}", VariableBrowsePaths[ii], result.StatusCode.ToString());
if (StatusCode.IsBad(historyReadResult.StatusCode))
{
continue;
}
if (dataValues == null)
{
Console.WriteLine("dataValues == null");
continue;
}
for (int jj = 0; jj < dataValues.Count; jj++)
{
DataValue dataValue = dataValues[jj];
// write value.
Console.WriteLine("{0}: V={1}, Q={2}, SrvT={3}, SrcT={4}", jj,
dataValue.Value == null ? "null" : dataValue.Value.ToString(),
dataValue.StatusCode.ToString(),
dataValue.ServerTimestamp, dataValue.SourceTimestamp);
}
}
}
/// <summary>
/// Reads the first date in the archive (truncates milliseconds and converts to local).
/// </summary>
private DateTime ReadFirstDate()
{
// use the historical data configuration if available.
if (m_configuration != null)
{
if (StatusCode.IsGood(m_configuration.StartOfOnlineArchive.StatusCode))
{
return m_configuration.StartOfOnlineArchive.Value.ToLocalTime();
}
if (StatusCode.IsGood(m_configuration.StartOfArchive.StatusCode))
{
return m_configuration.StartOfArchive.Value.ToLocalTime();
}
}
// do it the hard way (may take a long time with some servers).
ReadRawModifiedDetails details = new ReadRawModifiedDetails();
details.StartTime = new DateTime(1970, 1, 1);
details.EndTime = DateTime.MinValue;
details.NumValuesPerNode = 1;
details.IsReadModified = false;
details.ReturnBounds = false;
HistoryReadValueId nodeToRead = new HistoryReadValueId();
nodeToRead.NodeId = m_nodeId;
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Source,
false,
nodesToRead,
out results,
out diagnosticInfos);
Session.ValidateResponse(results, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
return DateTime.MinValue;
}
HistoryData data = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryData;
if (results == null)
{
return DateTime.MinValue;
}
DateTime startTime = data.DataValues[0].SourceTimestamp;
if (results[0].ContinuationPoint != null && results[0].ContinuationPoint.Length > 0)
{
nodeToRead.ContinuationPoint = results[0].ContinuationPoint;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Source,
true,
nodesToRead,
out results,
out diagnosticInfos);
Session.ValidateResponse(results, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
}
startTime = new DateTime(startTime.Year, startTime.Month, startTime.Day, startTime.Hour, startTime.Minute, startTime.Second, 0, DateTimeKind.Utc);
startTime = startTime.ToLocalTime();
return startTime;
}
static void HistoryReadProcessed(Session session)
{
// translate browse paths.
IList <NodeOfInterest> nodeIds = GetNodeIds(session, Opc.Ua.Objects.ObjectsFolder,
VariableBrowsePaths.ToArray());
DiagnosticInfoCollection diagnosticInfos;
NodeId aggregateNodeId = null;
RequestHeader rh = null;
ViewDescription vd = null;
ReferenceDescriptionCollection references;
byte[] cp;
//Get the list of avalilable aggregate functions:
session.Browse(
rh,
vd,
Opc.Ua.ObjectIds.Server_ServerCapabilities_AggregateFunctions,
1000,
BrowseDirection.Forward,
ReferenceTypeIds.Aggregates,
false,
0,
out cp,
out references);
Console.WriteLine("{0} aggregates are detected:", references.Count);
//Print the list of avalible aggregates:
int i = 0;
foreach (ReferenceDescription rd in references)
{
i++;
Console.WriteLine("{0}. {1} {2}", i, rd.BrowseName, rd.NodeId.Identifier.ToString());
}
//Select aggregate function:
Console.WriteLine("\nEnter aggregate number: ");
string str = Console.ReadLine();
i = System.Int16.Parse(str);
if (i > 0 && i <= references.Count)
{
aggregateNodeId = ExpandedNodeId.ToNodeId(references[i - 1].NodeId, session.NamespaceUris);
}
//Prepare arguments to pass to read processed history
ReadProcessedDetails readDetails = new ReadProcessedDetails();
readDetails.StartTime = new DateTime(2008, 1, 1, 12, 0, 0);
readDetails.EndTime = new DateTime(2008, 1, 1, 12, 0, 12);
readDetails.AggregateType = new NodeIdCollection(nodeIds.Count);
for (int x = 0; x < nodeIds.Count; x++)
{
readDetails.AggregateType.Add(aggregateNodeId);
}
readDetails.ProcessingInterval = 500; //500 milliseconds
ExtensionObject eo = new ExtensionObject(readDetails.TypeId, readDetails);
HistoryReadValueIdCollection idCollection = new HistoryReadValueIdCollection();
for (int ii = 0; ii < nodeIds.Count; ii++)
{
HistoryReadValueId readValueId = new HistoryReadValueId();
readValueId.NodeId = nodeIds[ii].NodeId;
readValueId.Processed = true;
idCollection.Add(readValueId);
}
HistoryReadResultCollection historyReadResults;
//Read processed history:
ResponseHeader responseHeader =
session.HistoryRead(null, eo, TimestampsToReturn.Both, true,
idCollection, out historyReadResults, out diagnosticInfos);
//Print results:
for (int ii = 0; ii < historyReadResults.Count; ii++)
{
HistoryReadResult historyReadResult = historyReadResults[ii];
ServiceResult result = Session.GetResult(historyReadResult.StatusCode, ii, diagnosticInfos, responseHeader);
HistoryData historyData = null;
DataValueCollection dataValues = null;
if (!(historyReadResult.HistoryData == null))
{
historyData = ExtensionObject.ToEncodeable(historyReadResult.HistoryData) as HistoryData;
if (historyData == null)
{
dataValues = null;
}
else
{
dataValues = historyData.DataValues;
}
}
Console.WriteLine("\nHistoryRead result code for {0}: {1}", VariableBrowsePaths[ii], result.StatusCode.ToString());
if (dataValues == null)
{
Console.WriteLine("dataValues == null");
continue;
}
for (int jj = 0; jj < dataValues.Count; jj++)
{
DataValue dataValue = dataValues[jj];
if (dataValue == null)
{
continue;
}
// write value.
Console.WriteLine("{0}: V={1}, Q={2}, SrvT={3}, SrcT={4}", jj,
dataValue.Value == null ? "null" : dataValue.Value.ToString(),
dataValue.StatusCode.ToString(),
dataValue.ServerTimestamp, dataValue.SourceTimestamp);
}
}
}
private DateTime ReadFirstDate()
{
ReadRawModifiedDetails details = new ReadRawModifiedDetails();
details.StartTime = new DateTime(1970, 1, 1);
details.EndTime = DateTime.UtcNow.AddDays(1);
details.IsReadModified = false;
details.NumValuesPerNode = 1;
details.ReturnBounds = false;
HistoryReadValueId nodeToRead = new HistoryReadValueId();
nodeToRead.NodeId = m_nodeId;
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(nodeToRead);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Source,
false,
nodesToRead,
out results,
out diagnosticInfos);
Session.ValidateResponse(results, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
if (StatusCode.IsBad(results[0].StatusCode))
{
return DateTime.MinValue;
}
HistoryData data = ExtensionObject.ToEncodeable(results[0].HistoryData) as HistoryData;
if (results == null)
{
return DateTime.MinValue;
}
DateTime startTime = data.DataValues[0].SourceTimestamp;
if (results[0].ContinuationPoint != null && results[0].ContinuationPoint.Length > 0)
{
nodeToRead.ContinuationPoint = results[0].ContinuationPoint;
m_session.HistoryRead(
null,
new ExtensionObject(details),
TimestampsToReturn.Source,
true,
nodesToRead,
out results,
out diagnosticInfos);
Session.ValidateResponse(results, nodesToRead);
Session.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
}
return startTime;
}
/// <summary>
/// Saves a continuation point for later use.
/// </summary>
private void SaveContinuationPoint(HistoryReadDetails details, HistoryReadValueId nodeToRead, byte[] continuationPoint)
{
// clear existing continuation point.
if (m_nodeToContinue != null)
{
HistoryReadValueIdCollection nodesToRead = new HistoryReadValueIdCollection();
nodesToRead.Add(m_nodeToContinue);
HistoryReadResultCollection results = null;
DiagnosticInfoCollection diagnosticInfos = null;
m_session.HistoryRead(
null,
new ExtensionObject(m_details),
TimestampsToReturn.Neither,
true,
nodesToRead,
out results,
out diagnosticInfos);
ClientBase.ValidateResponse(results, nodesToRead);
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
}
m_details = null;
m_nodeToContinue = null;
// save new continutation point.
if (continuationPoint != null && continuationPoint.Length > 0)
{
m_details = details;
m_nodeToContinue = nodeToRead;
m_nodeToContinue.ContinuationPoint = continuationPoint;
}
// update controls.
if (m_nodeToContinue != null)
{
GoBTN.Visible = false;
NextBTN.Visible = true;
NextBTN.Enabled = true;
StopBTN.Enabled = true;
}
else
{
GoBTN.Visible = true;
GoBTN.Enabled = true;
NextBTN.Visible = false;
StopBTN.Enabled = false;
}
}