/// <summary>
/// Gets a default event filter.
/// </summary>
/// <returns></returns>
private static EventFilter GetDefaultEventFilter()
{
var filter = new EventFilter();
filter.AddSelectClause(ObjectTypes.BaseEventType, BrowseNames.EventId);
filter.AddSelectClause(ObjectTypes.BaseEventType, BrowseNames.EventType);
filter.AddSelectClause(ObjectTypes.BaseEventType, BrowseNames.SourceNode);
filter.AddSelectClause(ObjectTypes.BaseEventType, BrowseNames.SourceName);
filter.AddSelectClause(ObjectTypes.BaseEventType, BrowseNames.Time);
filter.AddSelectClause(ObjectTypes.BaseEventType, BrowseNames.ReceiveTime);
filter.AddSelectClause(ObjectTypes.BaseEventType, BrowseNames.LocalTime);
filter.AddSelectClause(ObjectTypes.BaseEventType, BrowseNames.Message);
filter.AddSelectClause(ObjectTypes.BaseEventType, BrowseNames.Severity);
return(filter);
}
/// <summary>
/// Sets the default event filter.
/// </summary>
private void UseDefaultEventFilter()
{
EventFilter filter = filter = new EventFilter();
filter.AddSelectClause(ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.EventId);
filter.AddSelectClause(ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.EventType);
filter.AddSelectClause(ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.SourceNode);
filter.AddSelectClause(ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.SourceName);
filter.AddSelectClause(ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.Time);
filter.AddSelectClause(ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.ReceiveTime);
filter.AddSelectClause(ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.LocalTime);
filter.AddSelectClause(ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.Message);
filter.AddSelectClause(ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.Severity);
m_filter = filter;
}
/// <summary>
/// Sets the default event filter.
/// </summary>
private void UseDefaultEventFilter()
{
EventFilter filter = filter = new EventFilter();
filter.AddSelectClause(ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.EventId);
filter.AddSelectClause(ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.EventType);
filter.AddSelectClause(ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.SourceNode);
filter.AddSelectClause(ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.SourceName);
filter.AddSelectClause(ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.Time);
filter.AddSelectClause(ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.ReceiveTime);
filter.AddSelectClause(ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.LocalTime);
filter.AddSelectClause(ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.Message);
filter.AddSelectClause(ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.Severity);
m_filter = filter;
}
/// <summary>
/// Creates a new MonitoredItem for events. Applies the standard event filters for condition events
/// and adds the filters necessary to obtain event attributes -- properties of event types/subtypes
/// </summary>
/// <param name="nodeId">The node id.</param>
/// <returns></returns>
public MonitoredItem CreateMonitoredItemForEvents(NodeId nodeId)
{
MonitoredItem monitoredItem = new MonitoredItem(m_Subscription.DefaultItem);
monitoredItem.AttributeId = Attributes.EventNotifier;
monitoredItem.DisplayName = m_Subscription.Session.NodeCache.GetDisplayText((ExpandedNodeId)nodeId);
monitoredItem.StartNodeId = nodeId;
monitoredItem.NodeClass = NodeClass.Object;
//get all attribute values from all events
EventFilter filter = new EventFilter();
foreach (EventAttribute attr in m_configFile.Attributes)
{
if (attr.strEventNodeId != "")
{
filter.AddSelectClause(new NodeId(attr.strEventNodeId), attr.BrowseName);
// Utils.Trace("AddSelectClause ( {0}: {1}, {2} )", i++, attr.strEventNodeId, attr.BrowseName);
}
}
// Add Condition-related attributes to the filter so that we have enough info to determine
// Enabled/Disabled, Active/Inactive including time of active transition, Acked/Unacked and active subcondition
filter.AddSelectClause(Opc.Ua.ObjectTypes.ConditionType, "/EnabledState/Id", Attributes.Value);
filter.AddSelectClause(Opc.Ua.ObjectTypes.ConditionType, "/Quality", Attributes.Value);
filter.AddSelectClause(Opc.Ua.ObjectTypes.AcknowledgeableConditionType, "/AckedState/Id", Attributes.Value);
filter.AddSelectClause(Opc.Ua.ObjectTypes.AcknowledgeableConditionType, "", Attributes.NodeId);
filter.AddSelectClause(Opc.Ua.ObjectTypes.AlarmConditionType, "/ActiveState/Id", Attributes.Value);
filter.AddSelectClause(Opc.Ua.ObjectTypes.AlarmConditionType, "/ActiveState/TransitionTime", Attributes.Value);
filter.AddSelectClause(Opc.Ua.ObjectTypes.AlarmConditionType, "/ActiveState/EffectiveDisplayName", Attributes.Value);
monitoredItem.Filter = filter;
monitoredItem.Notification += new MonitoredItemNotificationEventHandler(MonitoredItem_Notification);
return monitoredItem;
}
//ns=2;s=Scalar_CreateTime
public void Execte()
{
string storePath = AppContext.BaseDirectory;
var config = new ApplicationConfiguration()
{
ApplicationName = "Axiu-Opcua",
ApplicationUri = Utils.Format(@"urn:{0}:Axiu-Opcua", System.Net.Dns.GetHostName()),
ApplicationType = ApplicationType.Client,
SecurityConfiguration = new SecurityConfiguration
{
ApplicationCertificate = new CertificateIdentifier {
StoreType = @"Directory", StorePath = Path.Combine(storePath, @"OPC Foundation/CertificateStores/MachineDefault"), SubjectName = Utils.Format(@"CN={0}, DC={1}", "Axiu-Opcua", System.Net.Dns.GetHostName())
},
TrustedIssuerCertificates = new CertificateTrustList {
StoreType = @"Directory", StorePath = Path.Combine(storePath, @"OPC Foundation/CertificateStores/UA Certificate Authorities")
},
TrustedPeerCertificates = new CertificateTrustList {
StoreType = @"Directory", StorePath = Path.Combine(storePath, @"OPC Foundation/CertificateStores/UA Applications")
},
RejectedCertificateStore = new CertificateTrustList {
StoreType = @"Directory", StorePath = Path.Combine(storePath, @"OPC Foundation/CertificateStores/RejectedCertificates")
},
AutoAcceptUntrustedCertificates = true,
AddAppCertToTrustedStore = true
},
TransportConfigurations = new TransportConfigurationCollection(),
TransportQuotas = new TransportQuotas {
OperationTimeout = 15000
},
ClientConfiguration = new ClientConfiguration {
DefaultSessionTimeout = 60000
},
TraceConfiguration = new TraceConfiguration()
};
config.Validate(ApplicationType.Client).GetAwaiter().GetResult();
if (config.SecurityConfiguration.AutoAcceptUntrustedCertificates)
{
config.CertificateValidator.CertificateValidation += (s, e) => { e.Accept = (e.Error.StatusCode == StatusCodes.BadCertificateUntrusted); };
}
var application = new ApplicationInstance
{
ApplicationName = "Axiu-Opcua",
ApplicationType = ApplicationType.Client,
ApplicationConfiguration = config
};
application.CheckApplicationInstanceCertificate(false, 2048).GetAwaiter().GetResult();
var selectedEndpoint = CoreClientUtils.SelectEndpoint(url, useSecurity: true, int.MaxValue);
Console.WriteLine("配置已准备完毕,即将打开链接会话...");
using (var session = Session.Create(config, new ConfiguredEndpoint(null, selectedEndpoint, EndpointConfiguration.Create(config)), false, "", int.MaxValue, null, null).GetAwaiter().GetResult())
{
#region 读取目录下所有节点
//读取目录下所有节点
List <string> idList = new List <string>();
ReferenceDescriptionCollection nextRefs;
byte[] nextCp;
////session.Browse(null, null, "ns=2;s=1_6_20", 0u, BrowseDirection.Forward, ReferenceTypeIds.HierarchicalReferences, true, (uint)NodeClass.Variable | (uint)NodeClass.Object | (uint)NodeClass.Method, out nextCp, out nextRefs);
////foreach (var nextRd in nextRefs)
////{
//// //Console.WriteLine("{0}: {1}, {2}", nextRd.DisplayName, nextRd.BrowseName, nextRd.NodeClass);
//// idList.Add(nextRd.NodeId.ToString());
////}
Console.Write("请输入监听通道ID:");
string devStr = Console.ReadLine();
if (string.IsNullOrEmpty(devStr))
{
return;
}
List <string> folders = new List <string>();
string nodeId = "ns=2;s=1_" + devStr;
session.Browse(null, null, nodeId, 0u, BrowseDirection.Forward, ReferenceTypeIds.HierarchicalReferences, true, (uint)NodeClass.Variable | (uint)NodeClass.Object | (uint)NodeClass.Method, out nextCp, out nextRefs);
foreach (var nextRd in nextRefs)
{
//Console.WriteLine("{0}: {1}, {2}", nextRd.DisplayName, nextRd.BrowseName, nextRd.NodeClass);
folders.Add(nextRd.NodeId.ToString());
}
List <string> nodes = new List <string>();
foreach (var item in folders)
{
session.Browse(null, null, item, 0u, BrowseDirection.Forward, ReferenceTypeIds.HierarchicalReferences, true, (uint)NodeClass.Variable | (uint)NodeClass.Object | (uint)NodeClass.Method, out nextCp, out nextRefs);
foreach (var nextRd in nextRefs)
{
//Console.WriteLine("{0}: {1}, {2}", nextRd.DisplayName, nextRd.BrowseName, nextRd.NodeClass);
nodes.Add(nextRd.NodeId.ToString());
}
}
Console.WriteLine("通道总节点数:" + nodes.Count + "; 第一个:" + nodes[0]);
#endregion
#region 读单个节点
//读单个节点
//ReadValueIdCollection nodesToRead = new ReadValueIdCollection
//{
// new ReadValueId( )
// {
// NodeId = "ns=2;s=0_0_0_1_7",
// AttributeId = Attributes.Value
// }
//};
//// read the current value
//session.Read(null, 0, TimestampsToReturn.Neither, nodesToRead, out DataValueCollection results, out DiagnosticInfoCollection diagnosticInfos);
//ClientBase.ValidateResponse(results, nodesToRead);
//ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
//Console.WriteLine("取到单值结果: " + results[0].ToString());
#endregion
#region 读取历史数据
//读取历史数据
//HistoryReadValueIdCollection historyReads = new HistoryReadValueIdCollection()
//{
// new HistoryReadValueId( )
// {
// NodeId = "ns=2;s=0_0_0_1_7"
// }
//};
//ExtensionObject extension = new ExtensionObject();
//ReadProcessedDetails details = new ReadProcessedDetails() { StartTime = DateTime.Now.AddMinutes(-5), EndTime = DateTime.Now };
//extension.Body = details;
//session.HistoryRead(null, extension, TimestampsToReturn.Neither, true, historyReads, out HistoryReadResultCollection hresults, out DiagnosticInfoCollection hdiagnosticInfos);
//foreach (var item in hresults)
//{
// var res = item.HistoryData.Body as Opc.Ua.KeyValuePair;
// Console.WriteLine("历史数据:" + res.Key.Name + " --- " + res.Value);
//}
#endregion
#region 读取历史事件
//HistoryReadValueIdCollection historyEvents = new HistoryReadValueIdCollection()
//{
// new HistoryReadValueId( )
// {
// NodeId = "ns=2;s=1_1_1"
// }
//};
//EventFilter hFilter = new EventFilter();
//hFilter.AddSelectClause(ObjectTypeIds.BaseEventType, new QualifiedName("id=0101"));
//ExtensionObject extension2 = new ExtensionObject();
//ReadEventDetails details2 = new ReadEventDetails() { StartTime = DateTime.Now.AddDays(-1), EndTime = DateTime.Now, Filter = hFilter };
//extension2.Body = details2;
//session.HistoryRead(null, extension2, TimestampsToReturn.Neither, false, historyEvents, out HistoryReadResultCollection hresults2, out DiagnosticInfoCollection hdiagnosticInfos2);
//foreach (var item in hresults2)
//{
// if (item.HistoryData.Body!=null)
// {
// var res = item.HistoryData.Body as byte[];
// Console.WriteLine(Encoding.UTF8.GetString(res));
// }
//}
#endregion
#region 订阅事件
var subscription = new Subscription(session.DefaultSubscription)
{
PublishingInterval = 3000
};
EventFilter eventFilter = new EventFilter();
eventFilter.AddSelectClause(ObjectTypeIds.BaseEventType, new QualifiedName(BrowseNames.Message));
List <MonitoredItem> list = new List <MonitoredItem>();
foreach (var item in folders)
{
MonitoredItem model = new MonitoredItem(subscription.DefaultItem)
{
DisplayName = item + "的事件", StartNodeId = item, Filter = eventFilter, AttributeId = 12
};
model.Notification += OnEventNotification;
list.Add(model);
break;
}
subscription.AddItems(list);
bool radd = session.AddSubscription(subscription);
subscription.Create();
#endregion
#region 订阅测点
Console.WriteLine("即将开始订阅固定节点消息...");
//var submeas = new Subscription(session.DefaultSubscription) { PublishingInterval = 1000 };
//List<MonitoredItem> measlist = new List<MonitoredItem>();
//int index = 0, jcount = 0;
//foreach (var item in nodes)
//{
// index++; jcount++;
// MonitoredItem monitor = new MonitoredItem(submeas.DefaultItem) { DisplayName = "测点:" + item, StartNodeId = item };
// monitor.Notification += OnNotification;
// measlist.Add(monitor);
// if (index > 5999)
// {
// submeas.AddItems(measlist);
// session.AddSubscription(submeas);
// submeas.Create();
// index = 0;
// submeas = new Subscription(session.DefaultSubscription) { PublishingInterval = 1000 };
// measlist.Clear();
// }
//}
//if (measlist.Count > 0)
//{
// submeas.AddItems(measlist);
// session.AddSubscription(submeas);
// submeas.Create();
//}
//Console.WriteLine("订阅节点数:" + jcount);
//var subscription = new Subscription(session.DefaultSubscription) { PublishingInterval = 1000 };
//List<MonitoredItem> list = new List<MonitoredItem>();
//foreach (var item in nodes.Take(5000))
//{
// MonitoredItem monitor = new MonitoredItem(subscription.DefaultItem) { DisplayName = "测点:" + item, StartNodeId = item };
// list.Add(monitor);
//}
//list.ForEach(i => i.Notification += OnNotification);
//subscription.AddItems(list);
//session.AddSubscription(subscription);
//subscription.Create();
#endregion
#region 写入内容
//WriteValueCollection writeValues = new WriteValueCollection()
//{
// new WriteValue()
// {
// NodeId="ns=2;s=1_ctr_1",
// AttributeId=Attributes.Value,
// Value=new DataValue(){ Value="false" }
// }
//};
//session.Write(null, writeValues, out StatusCodeCollection wresults, out DiagnosticInfoCollection wdiagnosticInfos);
//foreach (var item in wresults)
//{
// Console.WriteLine("写入结果:" + item.ToString());
//}
#endregion
Console.WriteLine("指定节点消息已订阅,请勿关闭程序...");
while (true)
{
Thread.Sleep(3000);
Console.WriteLine("测点更新次数:" + ntCount);
ntCount = 0;
}
Console.ReadKey(true);
//subscription.DeleteItems();
}
Console.WriteLine("Press any key to exit...");
Console.ReadKey(true);
}
MonitoringFilter GetFilter()
{
aliasMap.Clear();
var eventFilter = new EventFilter();
eventFilter.AddSelectClause(Opc.Ua.ObjectTypeIds.BaseEventType, null, Attributes.NodeId); // Requests condition id
// Ensure all required properties are in the event filter
var propsToRequest = new List <TheEventProperty>(EventInfo.Properties);
foreach (var prop in requiredEventFields)
{
if (EventInfo.Properties.FirstOrDefault(p => p.Name == prop && string.IsNullOrEmpty(p.CustomTypeId)) == null)
{
propsToRequest.Add(new TheEventProperty {
Name = prop
});
}
}
// Remove ConditionId, because it is added by requesting the BaseEventType attibute 1 above
var conditionIdProp = EventInfo.Properties.FirstOrDefault(p => p.Name == "ConditionId" && string.IsNullOrEmpty(p.CustomTypeId));
if (conditionIdProp != null)
{
propsToRequest.Remove(conditionIdProp);
}
var alarmConditionProps = typeof(AlarmConditionState).GetProperties();
int index = eventFilter.SelectClauses.Count;
foreach (var eventProp in propsToRequest)
{
if (eventProp.Name == "ConditionId" && string.IsNullOrEmpty(eventProp.CustomTypeId))
{
continue;
}
var propertyType = Opc.Ua.ObjectTypeIds.BaseEventType;
ushort nameSpaceId = 0;
var propDef = alarmConditionProps.FirstOrDefault(p => p.Name == eventProp.Name && string.IsNullOrEmpty(eventProp.CustomTypeId));
if (propDef != null)
{
switch (propDef.DeclaringType.Name)
{
case nameof(AlarmConditionState):
propertyType = Opc.Ua.ObjectTypeIds.AlarmConditionType;
break;
case nameof(AcknowledgeableConditionState):
propertyType = Opc.Ua.ObjectTypeIds.AcknowledgeableConditionType;
break;
case nameof(ConditionState):
propertyType = Opc.Ua.ObjectTypeIds.ConditionType;
break;
case nameof(BaseEventState):
default:
propertyType = Opc.Ua.ObjectTypeIds.BaseEventType;
break;
}
}
else
{
if (!string.IsNullOrEmpty(eventProp.CustomTypeId))
{
// Custom Type: must be specified in the request
var exNodeId = ExpandedNodeId.Parse(eventProp.CustomTypeId);
propertyType = ExpandedNodeId.ToNodeId(exNodeId, MyOPCServer?.m_session?.NamespaceUris);
nameSpaceId = propertyType.NamespaceIndex;
}
else
{
TheBaseAssets.MySYSLOG.WriteToLog(78122, TSM.L(eDEBUG_LEVELS.OFF) ? null : new TSM(MyOPCServer.GetBaseThing().EngineName, $"Unrecognized Event Property Name '{eventProp}' for {GetNodeIdForLogs()}. Use <nodeid>::<name> for custom types.", eMsgLevel.l2_Warning));
}
}
QualifiedName eventPropQName;
var indexOfNamespaceSeparator = eventProp.Name.LastIndexOf(':'); // namespace Uri typically contains ":" so must use last index instead of Split
if (indexOfNamespaceSeparator > 0)
{
var namespacePrefix = eventProp.Name.Substring(0, indexOfNamespaceSeparator);
var name = eventProp.Name.Substring(indexOfNamespaceSeparator + 1);
if (!char.IsDigit(namespacePrefix[0]))
{
eventPropQName = QualifiedName.Create(name, namespacePrefix, MyOPCServer?.m_session?.NamespaceUris);
}
else
{
eventPropQName = QualifiedName.Parse(eventProp.Name);
}
}
else
{
eventPropQName = new QualifiedName(eventProp.Name, nameSpaceId);
}
eventFilter.AddSelectClause(propertyType, eventPropQName);
if (!string.IsNullOrEmpty(eventProp.Alias))
{
aliasMap.Add(index, eventProp.Alias);
}
index++;
}
// Incomplete/untested, syntax is very cumbersome. Leaving in for now as a starting point should this become a high priority
//if (EventInfo.WhereClauses != null)
//{
// try
// {
// var whereClause = new ContentFilter();
// var filterElements = new ContentFilterElementCollection(EventInfo.WhereClauses.Select((clause) =>
// {
// FilterOperator filterOperator;
// try
// {
// filterOperator = (FilterOperator)Enum.Parse(typeof(FilterOperator), clause.Operator);
// }
// catch
// {
// filterOperator = (FilterOperator)(-1); // invalid operator: assume that it will be rejected by server or client stack
// }
// var operands = clause.Operands.Select<TheFilterOperand, ExtensionObject>(operand =>
// {
// if (operand.Value != null)
// {
// return new ExtensionObject(new LiteralOperand(operand.Value));
// }
// if (operand.SimpleAttribute != null)
// {
// return new ExtensionObject(new SimpleAttributeOperand
// {
// AttributeId = operand.SimpleAttribute.AttributeId ?? Opc.Ua.Attributes.Value, // TODO support symbolic names
// BrowsePath = new QualifiedNameCollection(operand.SimpleAttribute.BrowsePaths.Select(p => new QualifiedName(p))), // TODO support namespace qualifiers etc.
// TypeDefinitionId = ExpandedNodeId.ToNodeId(ExpandedNodeId.Parse(operand.SimpleAttribute.TypeId), nameTable),
// // TODO Why is SimpleAttributeOperand.IndexRange a string? Should be a Range. Not supported for now
// });
// }
// //if (operand.Attribute != null)
// //{
// // return new ExtensionObject(new AttributeOperand
// // {
// // // TODO implement, not supported for now
// // //AttributeId = operand.Attribute.AttributeId,
// // // BrowsePath = operand.Attribute.BrowsePath,
// // });
// //}
// return null;
// });
// var element = new ContentFilterElement
// {
// FilterOperator = filterOperator,
// FilterOperands = new ExtensionObjectCollection(operands),
// };
// return element;
// }));
// eventFilter.WhereClause = new ContentFilter { Elements = filterElements, };
// }
// catch (Exception e)
// {
// // Log errors, fail filter etc.
// }
//}
// Original approach relied on server providing proper type information for the events; not all OPC Servers do so
//NodeId eventTypeId = this.TagRef;
//var desc = new BrowseDescription
//{
// NodeId = this.TagRef,
// ReferenceTypeId = Opc.Ua.ReferenceTypeIds.GeneratesEvent,
// ResultMask = (uint)BrowseResultMask.TargetInfo,
//};
//var references = ClientUtils.Browse(MyOPCServer.m_session, desc, false);
//if (references.Count > 0)
//{
// eventTypeId = (NodeId)references[0].NodeId;
//}
//TypeDeclaration type = new TypeDeclaration();
//type.NodeId = eventTypeId;
//type.Declarations = ClientUtils.CollectInstanceDeclarationsForType(MyOPCServer.m_session, type.NodeId);
//// the filter to use.
//var filter = new FilterDeclaration(type, null);
//var eventFilter2 = filter.GetFilter();
//eventFilter2.WhereClause = null;
return(eventFilter);
}
