mirror of
https://gitee.com/ThingsGateway/ThingsGateway.git
synced 2025-10-31 23:53:58 +08:00
1221 lines
41 KiB
C#
1221 lines
41 KiB
C#
#region copyright
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//------------------------------------------------------------------------------
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// 此代码版权声明为全文件覆盖，如有原作者特别声明，会在下方手动补充
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// 此代码版权（除特别声明外的代码）归作者本人Diego所有
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// 源代码使用协议遵循本仓库的开源协议及附加协议
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// Gitee源代码仓库：https://gitee.com/diego2098/ThingsGateway
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// Github源代码仓库：https://github.com/kimdiego2098/ThingsGateway
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// 使用文档：https://diego2098.gitee.io/thingsgateway-docs/
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// QQ群：605534569
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//------------------------------------------------------------------------------
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#endregion
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using Newtonsoft.Json.Linq;
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using Opc.Ua;
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using Opc.Ua.Client;
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using Opc.Ua.Client.ComplexTypes;
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using Opc.Ua.Configuration;
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//修改自https://github.com/dathlin/OpcUaHelper 与OPC基金会net库
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namespace ThingsGateway.Foundation.Adapter.OPCUA;
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/// <summary>
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/// 订阅委托
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/// </summary>
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/// <param name="value"></param>
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public delegate void DataChangedEventHandler((VariableNode variableNode, DataValue dataValue, JToken jToken) value);
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/// <summary>
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/// OPCUAClient
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/// </summary>
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public class OPCUAClient : IDisposable
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{
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#region 属性，变量等
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/// <summary>
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/// 当前配置
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/// </summary>
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public OPCNode OPCNode;
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/// <summary>
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/// ProductUri
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/// </summary>
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public string ProductUri = "https://diego2098.gitee.io/thingsgateway-docs/";
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/// <summary>
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/// 当前保存的变量名称列表
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/// </summary>
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public List<string> Variables = new();
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/// <summary>
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/// 当前的变量名称/OPC变量节点
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/// </summary>
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private readonly Dictionary<string, VariableNode> _variableDicts = new();
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private readonly object checkLock = new();
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/// <summary>
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/// 当前的订阅组，组名称/组
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/// </summary>
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private readonly Dictionary<string, Subscription> dic_subscriptions = new();
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private readonly ApplicationInstance m_application = new();
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private readonly ApplicationConfiguration m_configuration;
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private SessionReconnectHandler m_reConnectHandler;
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private EventHandler m_ReconnectComplete;
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private EventHandler m_ReconnectStarting;
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private EventHandler<KeepAliveEventArgs> m_KeepAliveComplete;
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private EventHandler<bool> m_ConnectComplete;
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private EventHandler<OpcUaStatusEventArgs> m_OpcStatusChange;
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private ISession m_session;
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/// <summary>
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/// 默认的构造函数，实例化一个新的OPC UA类
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/// </summary>
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public OPCUAClient()
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{
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var certificateValidator = new CertificateValidator();
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certificateValidator.CertificateValidation += CertificateValidation;
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// 构建应用程序配置
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m_configuration = new ApplicationConfiguration
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{
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ApplicationName = OPCUAName,
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ApplicationType = ApplicationType.Client,
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CertificateValidator = certificateValidator,
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ApplicationUri = Utils.Format(@"urn:{0}:{1}", System.Net.Dns.GetHostName(), OPCUAName),
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ProductUri = ProductUri,
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ServerConfiguration = new ServerConfiguration
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{
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MaxSubscriptionCount = 100000,
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MaxMessageQueueSize = 1000000,
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MaxNotificationQueueSize = 1000000,
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MaxPublishRequestCount = 10000000,
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},
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SecurityConfiguration = new SecurityConfiguration
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{
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UseValidatedCertificates = true,
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AutoAcceptUntrustedCertificates = true,//自动接受证书
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RejectSHA1SignedCertificates = false,
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MinimumCertificateKeySize = 1024,
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SuppressNonceValidationErrors = true,
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ApplicationCertificate = new CertificateIdentifier
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{
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StoreType = CertificateStoreType.X509Store,
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StorePath = "CurrentUser\\" + OPCUAName,
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SubjectName = $"CN={OPCUAName}, C=CN, S=GUANGZHOU, O=ThingsGateway, DC=" + System.Net.Dns.GetHostName(),
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},
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TrustedIssuerCertificates = new CertificateTrustList
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{
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StoreType = CertificateStoreType.Directory,
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StorePath = AppContext.BaseDirectory + @"OPCUAClientCertificate\pki\trustedIssuer",
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},
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TrustedPeerCertificates = new CertificateTrustList
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{
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StoreType = CertificateStoreType.Directory,
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StorePath = AppContext.BaseDirectory + @"OPCUAClientCertificate\pki\trustedPeer",
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},
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RejectedCertificateStore = new CertificateStoreIdentifier
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{
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StoreType = CertificateStoreType.Directory,
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StorePath = AppContext.BaseDirectory + @"OPCUAClientCertificate\pki\rejected",
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},
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UserIssuerCertificates = new CertificateTrustList
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{
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StoreType = CertificateStoreType.Directory,
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StorePath = AppContext.BaseDirectory + @"OPCUAClientCertificate\pki\issuerUser",
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},
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TrustedUserCertificates = new CertificateTrustList
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{
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StoreType = CertificateStoreType.Directory,
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StorePath = AppContext.BaseDirectory + @"OPCUAClientCertificate\pki\trustedUser",
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}
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},
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TransportQuotas = new TransportQuotas
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{
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OperationTimeout = 6000000,
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MaxStringLength = int.MaxValue,
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MaxByteStringLength = int.MaxValue,
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MaxArrayLength = 65535,
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MaxMessageSize = 419430400,
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MaxBufferSize = 65535,
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ChannelLifetime = -1,
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SecurityTokenLifetime = -1
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},
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ClientConfiguration = new ClientConfiguration
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{
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DefaultSessionTimeout = -1,
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MinSubscriptionLifetime = -1,
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},
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DisableHiResClock = true
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};
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certificateValidator.Update(m_configuration);
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m_configuration.Validate(ApplicationType.Client);
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m_application.ApplicationConfiguration = m_configuration;
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}
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/// <summary>
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/// 订阅
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/// </summary>
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public event DataChangedEventHandler DataChangedHandler;
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/// <summary>
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/// 配置信息
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/// </summary>
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public ApplicationConfiguration AppConfig => m_configuration;
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/// <summary>
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/// 连接状态
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/// </summary>
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public bool Connected => m_session?.Connected == true;
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/// <summary>
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/// OPCUAClient
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/// </summary>
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public string OPCUAName { get; set; } = "ThingsGateway";
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/// <summary>
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/// SessionReconnectHandler
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/// </summary>
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public SessionReconnectHandler ReConnectHandler => m_reConnectHandler;
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/// <summary>
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/// Raised when a good keep alive from the server arrives.
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/// </summary>
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public event EventHandler<KeepAliveEventArgs> KeepAliveComplete
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{
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add { m_KeepAliveComplete += value; }
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remove { m_KeepAliveComplete -= value; }
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}
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/// <summary>
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/// Raised when a reconnect operation starts.
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/// </summary>
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public event EventHandler ReconnectStarting
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{
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add { m_ReconnectStarting += value; }
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remove { m_ReconnectStarting -= value; }
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}
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/// <summary>
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/// Raised when a reconnect operation completes.
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/// </summary>
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public event EventHandler ReconnectComplete
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{
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add { m_ReconnectComplete += value; }
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remove { m_ReconnectComplete -= value; }
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}
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/// <summary>
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/// Raised after successfully connecting to or disconnecing from a server.
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/// </summary>
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public event EventHandler<bool> ConnectComplete
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{
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add { m_ConnectComplete += value; }
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remove { m_ConnectComplete -= value; }
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}
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/// <summary>
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/// Raised after the client status change
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/// </summary>
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public event EventHandler<OpcUaStatusEventArgs> OpcStatusChange
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{
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add { m_OpcStatusChange += value; }
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remove { m_OpcStatusChange -= value; }
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}
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/// <summary>
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/// 当前活动会话。
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/// </summary>
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public ISession Session => m_session;
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#endregion
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#region 订阅
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/// <summary>
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/// 新增订阅，需要指定订阅组名称，订阅的tag名数组
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/// </summary>
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public async Task AddSubscriptionAsync(string subscriptionName, string[] items, bool loadType = true)
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{
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Subscription m_subscription = new(m_session.DefaultSubscription)
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{
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PublishingEnabled = true,
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PublishingInterval = 0,
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KeepAliveCount = uint.MaxValue,
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LifetimeCount = uint.MaxValue,
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MaxNotificationsPerPublish = uint.MaxValue,
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Priority = 100,
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DisplayName = subscriptionName
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};
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List<MonitoredItem> monitoredItems = new();
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var variableNodes = loadType ? await ReadNodesAsync(items) : null;
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for (int i = 0; i < items.Length; i++)
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{
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try
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{
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var item = new MonitoredItem
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{
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StartNodeId = loadType ? variableNodes[i].NodeId : items[i],
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AttributeId = Attributes.Value,
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DisplayName = items[i],
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Filter = OPCNode.DeadBand == 0 ? null : new DataChangeFilter() { DeadbandValue = OPCNode.DeadBand, DeadbandType = (int)DeadbandType.Absolute, Trigger = DataChangeTrigger.StatusValue },
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SamplingInterval = OPCNode?.UpdateRate ?? 1000,
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};
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item.Notification += Callback;
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monitoredItems.Add(item);
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}
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catch (Exception ex)
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{
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UpdateStatus(3, DateTime.Now, $"初始化{items[i]}变量订阅失败，错误原因：{ex}");
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}
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}
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m_subscription.AddItems(monitoredItems);
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m_session.AddSubscription(m_subscription);
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m_subscription.Create();
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foreach (var item in m_subscription.MonitoredItems.Where(a => a.Status.Error != null && StatusCode.IsBad(a.Status.Error.StatusCode)))
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{
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item.Filter = OPCNode.DeadBand == 0 ? null : new DataChangeFilter() { DeadbandValue = OPCNode.DeadBand, DeadbandType = (int)DeadbandType.None, Trigger = DataChangeTrigger.StatusValue };
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}
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m_subscription.ApplyChanges();
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var isError = m_subscription.MonitoredItems.Any(a => a.Status.Error != null && StatusCode.IsBad(a.Status.Error.StatusCode));
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if (isError)
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{
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UpdateStatus(3, DateTime.Now, $"创建以下变量订阅失败：{Environment.NewLine}{m_subscription.MonitoredItems.Where(
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a => a.Status.Error != null && StatusCode.IsBad(a.Status.Error.StatusCode))
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.Select(a => $"{a.StartNodeId.ToString()}：{a.Status.Error.ToString()}").ToJsonString()}");
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}
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lock (dic_subscriptions)
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{
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if (dic_subscriptions.ContainsKey(subscriptionName))
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{
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// remove
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dic_subscriptions[subscriptionName].Delete(true);
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m_session.RemoveSubscription(dic_subscriptions[subscriptionName]);
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try { dic_subscriptions[subscriptionName].Dispose(); } catch { }
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dic_subscriptions[subscriptionName] = m_subscription;
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}
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else
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{
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dic_subscriptions.Add(subscriptionName, m_subscription);
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}
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}
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}
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/// <summary>
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/// 移除所有的订阅消息
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/// </summary>
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public void RemoveAllSubscription()
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{
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lock (dic_subscriptions)
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{
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foreach (var item in dic_subscriptions)
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{
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item.Value.Delete(true);
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m_session.RemoveSubscription(item.Value);
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try { item.Value.Dispose(); } catch { }
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}
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dic_subscriptions.Clear();
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}
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}
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/// <summary>
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/// 移除订阅消息
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/// </summary>
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/// <param name="subscriptionName">组名称</param>
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public void RemoveSubscription(string subscriptionName)
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{
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lock (dic_subscriptions)
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{
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if (dic_subscriptions.ContainsKey(subscriptionName))
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{
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// remove
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dic_subscriptions[subscriptionName].Delete(true);
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m_session.RemoveSubscription(dic_subscriptions[subscriptionName]);
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try { dic_subscriptions[subscriptionName].Dispose(); } catch { }
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dic_subscriptions.RemoveWhere(a => a.Key == subscriptionName);
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}
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}
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}
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private void Callback(MonitoredItem monitoreditem, MonitoredItemNotificationEventArgs monitoredItemNotificationEventArgs)
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{
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try
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{
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if (m_session != null)
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{
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var variableNode = ReadNode(monitoreditem.StartNodeId.ToString(), false);
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foreach (var value in monitoreditem.DequeueValues())
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{
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if (value.Value != null)
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{
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var data = JsonUtils.Encode(m_session.MessageContext, TypeInfo.GetBuiltInType(variableNode.DataType, m_session.SystemContext.TypeTable), value.Value);
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if (data == null && value.Value != null)
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{
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UpdateStatus(3, DateTime.Now, $"{monitoreditem.StartNodeId}转换出错，原始值String为{value.Value}");
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var data1 = JsonUtils.Encode(m_session.MessageContext, TypeInfo.GetBuiltInType(variableNode.DataType, m_session.SystemContext.TypeTable), value.Value);
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}
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DataChangedHandler?.Invoke((variableNode, value, data));
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}
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else
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{
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var data = JValue.CreateNull();
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DataChangedHandler?.Invoke((variableNode, value, data));
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}
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}
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}
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}
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catch (Exception ex)
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{
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UpdateStatus(3, DateTime.Now, $"{monitoreditem.StartNodeId}订阅处理错误，错误原因：" + ex);
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}
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}
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#endregion
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#region 其他方法
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/// <summary>
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/// 浏览一个节点的引用
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/// </summary>
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/// <param name="tag">节点值</param>
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/// <returns>引用节点描述</returns>
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public async Task<ReferenceDescription[]> BrowseNodeReferenceAsync(string tag)
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{
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NodeId sourceId = new(tag);
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// 该节点可以读取到方法
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BrowseDescription nodeToBrowse1 = new()
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{
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NodeId = sourceId,
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BrowseDirection = BrowseDirection.Forward,
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ReferenceTypeId = ReferenceTypeIds.Aggregates,
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IncludeSubtypes = true,
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NodeClassMask = (uint)(NodeClass.Object | NodeClass.Variable | NodeClass.Method),
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ResultMask = (uint)BrowseResultMask.All
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};
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// find all nodes organized by the node.
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BrowseDescription nodeToBrowse2 = new()
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{
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NodeId = sourceId,
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BrowseDirection = BrowseDirection.Forward,
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ReferenceTypeId = ReferenceTypeIds.Organizes,
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IncludeSubtypes = true,
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NodeClassMask = (uint)(NodeClass.Object | NodeClass.Variable),
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ResultMask = (uint)BrowseResultMask.All
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};
|
||
|
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BrowseDescriptionCollection nodesToBrowse = new()
|
||
{
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nodeToBrowse1,
|
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nodeToBrowse2
|
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};
|
||
|
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// fetch references from the server.
|
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ReferenceDescriptionCollection references = await FormUtils.BrowseAsync(m_session, nodesToBrowse, false);
|
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return references.ToArray();
|
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}
|
||
|
||
/// <summary>
|
||
/// 调用服务器的方法
|
||
/// </summary>
|
||
/// <param name="tagParent">方法的父节点tag</param>
|
||
/// <param name="tag">方法的节点tag</param>
|
||
/// <param name="args">传递的参数</param>
|
||
/// <returns>输出的结果值</returns>
|
||
public object[] CallMethodByNodeId(string tagParent, string tag, params object[] args)
|
||
{
|
||
if (m_session == null)
|
||
{
|
||
return null;
|
||
}
|
||
|
||
IList<object> outputArguments = m_session.Call(
|
||
new NodeId(tagParent),
|
||
new NodeId(tag),
|
||
args);
|
||
|
||
return outputArguments.ToArray();
|
||
}
|
||
|
||
/// <summary>
|
||
/// 读取历史数据
|
||
/// </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>
|
||
/// <param name="cancellationToken">cancellationToken</param>
|
||
/// <returns>读取的数据列表</returns>
|
||
public async Task<List<DataValue>> ReadHistoryRawDataValues(string tag, DateTime start, DateTime end, uint count = 1, bool containBound = false, CancellationToken cancellationToken = default)
|
||
{
|
||
HistoryReadValueId m_nodeToContinue = new()
|
||
{
|
||
NodeId = new NodeId(tag),
|
||
};
|
||
|
||
ReadRawModifiedDetails m_details = new()
|
||
{
|
||
StartTime = start,
|
||
EndTime = end,
|
||
NumValuesPerNode = count,
|
||
IsReadModified = false,
|
||
ReturnBounds = containBound
|
||
};
|
||
|
||
HistoryReadValueIdCollection nodesToRead = new()
|
||
{
|
||
m_nodeToContinue
|
||
};
|
||
|
||
var result = await m_session.HistoryReadAsync(
|
||
null,
|
||
new ExtensionObject(m_details),
|
||
TimestampsToReturn.Both,
|
||
false,
|
||
nodesToRead,
|
||
cancellationToken);
|
||
var results = result.Results;
|
||
var diagnosticInfos = result.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;
|
||
return values.DataValues;
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 连接
|
||
|
||
private ComplexTypeSystem typeSystem;
|
||
|
||
/// <summary>
|
||
/// 连接到服务器
|
||
/// </summary>
|
||
public async Task ConnectAsync()
|
||
{
|
||
await ConnectAsync(OPCNode.OPCUrl);
|
||
}
|
||
|
||
/// <summary>
|
||
/// 断开连接。
|
||
/// </summary>
|
||
public void Disconnect()
|
||
{
|
||
PrivateDisconnect();
|
||
// disconnect any existing session.
|
||
if (m_session != null)
|
||
{
|
||
m_session = null;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// Creates a new session.
|
||
/// </summary>
|
||
/// <returns>The new session object.</returns>
|
||
private async Task<ISession> ConnectAsync(string serverUrl)
|
||
{
|
||
PrivateDisconnect();
|
||
|
||
if (m_configuration == null)
|
||
{
|
||
throw new ArgumentNullException("未初始化配置");
|
||
}
|
||
var useSecurity = OPCNode?.IsUseSecurity ?? true;
|
||
EndpointDescription endpointDescription = CoreClientUtils.SelectEndpoint(m_configuration, serverUrl, useSecurity, 10000);
|
||
EndpointConfiguration endpointConfiguration = EndpointConfiguration.Create(m_configuration);
|
||
ConfiguredEndpoint endpoint = new(null, endpointDescription, endpointConfiguration);
|
||
UserIdentity userIdentity;
|
||
if (!string.IsNullOrEmpty(OPCNode.UserName))
|
||
{
|
||
userIdentity = new UserIdentity(OPCNode.UserName, OPCNode.Password);
|
||
}
|
||
else
|
||
{
|
||
userIdentity = new UserIdentity(new AnonymousIdentityToken());
|
||
}
|
||
//创建本地证书
|
||
await m_application.CheckApplicationInstanceCertificate(true, 0, 1200);
|
||
m_session = await Opc.Ua.Client.Session.Create(
|
||
m_configuration,
|
||
endpoint,
|
||
false,
|
||
OPCNode.CheckDomain,
|
||
(string.IsNullOrEmpty(OPCUAName)) ? m_configuration.ApplicationName : OPCUAName,
|
||
60000,
|
||
userIdentity,
|
||
Array.Empty<string>());
|
||
typeSystem = new ComplexTypeSystem(m_session);
|
||
|
||
m_session.KeepAliveInterval = OPCNode.KeepAliveInterval == 0 ? 60000 : OPCNode.KeepAliveInterval;
|
||
m_session.KeepAlive += new KeepAliveEventHandler(Session_KeepAlive);
|
||
|
||
// raise an event.
|
||
DoConnectComplete(true);
|
||
|
||
UpdateStatus(2, DateTime.UtcNow, "Connected");
|
||
|
||
//如果是订阅模式，连接时添加订阅组
|
||
if (OPCNode.ActiveSubscribe)
|
||
await AddSubscriptionAsync(Guid.NewGuid().ToString(), Variables.ToArray(), OPCNode.LoadType);
|
||
return m_session;
|
||
}
|
||
|
||
private void PrivateDisconnect()
|
||
{
|
||
bool state = m_session?.Connected == true;
|
||
|
||
|
||
if (m_reConnectHandler != null)
|
||
{
|
||
try { m_reConnectHandler.Dispose(); } catch { }
|
||
m_reConnectHandler = null;
|
||
}
|
||
if (m_session != null)
|
||
{
|
||
m_session.KeepAlive -= Session_KeepAlive;
|
||
m_session.Close(10000);
|
||
}
|
||
|
||
if (state)
|
||
{
|
||
UpdateStatus(2, DateTime.UtcNow, "Disconnected");
|
||
DoConnectComplete(false);
|
||
}
|
||
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 读取/写入
|
||
|
||
/// <summary>
|
||
/// 从服务器读取值
|
||
/// </summary>
|
||
public async Task<List<(string, DataValue, JToken)>> ReadJTokenValueAsync(string[] tags, CancellationToken cancellationToken = default)
|
||
{
|
||
var result = await ReadJTokenValueAsync(tags.Select(a => new NodeId(a)).ToArray(), cancellationToken);
|
||
return result;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 异步写opc标签
|
||
/// </summary>
|
||
public async Task<Dictionary<string, Tuple<bool, string>>> WriteNodeAsync(Dictionary<string, JToken> writeInfoLists, CancellationToken cancellationToken = default)
|
||
{
|
||
Dictionary<string, Tuple<bool, string>> results = new();
|
||
try
|
||
{
|
||
WriteValueCollection valuesToWrite = new();
|
||
foreach (var item in writeInfoLists)
|
||
{
|
||
WriteValue valueToWrite = new()
|
||
{
|
||
NodeId = new NodeId(item.Key),
|
||
AttributeId = Attributes.Value,
|
||
};
|
||
var variableNode = await ReadNodeAsync(item.Key, false, cancellationToken);
|
||
var dataValue = JsonUtils.Decode(
|
||
m_session.MessageContext,
|
||
variableNode.DataType,
|
||
TypeInfo.GetBuiltInType(variableNode.DataType, m_session.SystemContext.TypeTable),
|
||
item.Value.CalculateActualValueRank(),
|
||
item.Value
|
||
);
|
||
valueToWrite.Value = dataValue;
|
||
|
||
valuesToWrite.Add(valueToWrite);
|
||
}
|
||
|
||
var result = await m_session.WriteAsync(
|
||
requestHeader: null,
|
||
nodesToWrite: valuesToWrite, cancellationToken);
|
||
|
||
ClientBase.ValidateResponse(result.Results, valuesToWrite);
|
||
ClientBase.ValidateDiagnosticInfos(result.DiagnosticInfos, valuesToWrite);
|
||
|
||
var keys = writeInfoLists.Keys.ToList();
|
||
for (int i = 0; i < keys.Count; i++)
|
||
{
|
||
if (!StatusCode.IsGood(result.Results[i]))
|
||
results.Add(keys[i], Tuple.Create(true, result.Results[i].ToString()));
|
||
else
|
||
{
|
||
results.Add(keys[i], Tuple.Create(false, "成功"));
|
||
}
|
||
}
|
||
|
||
return results;
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
var keys = writeInfoLists.Keys.ToList();
|
||
foreach (var item in keys)
|
||
{
|
||
results.Add(item, Tuple.Create(true, ex.Message));
|
||
}
|
||
return results;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 从服务器读取值
|
||
/// </summary>
|
||
private async Task<List<(string, DataValue, JToken)>> ReadJTokenValueAsync(NodeId[] nodeIds, CancellationToken cancellationToken = default)
|
||
{
|
||
if (m_session == null)
|
||
{
|
||
throw new("服务器未初始化连接");
|
||
}
|
||
ReadValueIdCollection nodesToRead = new();
|
||
for (int i = 0; i < nodeIds.Length; i++)
|
||
{
|
||
nodesToRead.Add(new ReadValueId()
|
||
{
|
||
NodeId = nodeIds[i],
|
||
AttributeId = Attributes.Value
|
||
});
|
||
}
|
||
|
||
// 读取当前的值
|
||
var result = await m_session.ReadAsync(
|
||
null,
|
||
0,
|
||
TimestampsToReturn.Neither,
|
||
nodesToRead,
|
||
cancellationToken);
|
||
var results = result.Results;
|
||
var diagnosticInfos = result.DiagnosticInfos;
|
||
ClientBase.ValidateResponse(results, nodesToRead);
|
||
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
|
||
List<(string, DataValue, JToken)> jTokens = new();
|
||
for (int i = 0; i < results.Count; i++)
|
||
{
|
||
var variableNode = await ReadNodeAsync(nodeIds[i].ToString(), false, cancellationToken);
|
||
var type = TypeInfo.GetBuiltInType(variableNode.DataType, m_session.SystemContext.TypeTable);
|
||
var jToken = JsonUtils.Encode(m_session.MessageContext, type, results[i].Value);
|
||
jTokens.Add((variableNode.NodeId.ToString(), results[i], jToken));
|
||
}
|
||
return jTokens.ToList();
|
||
}
|
||
|
||
/// <summary>
|
||
/// 从服务器或缓存读取节点
|
||
/// </summary>
|
||
private async Task<VariableNode> ReadNodeAsync(string nodeIdStr, bool isOnlyServer = true, CancellationToken cancellationToken = default)
|
||
{
|
||
if (!isOnlyServer)
|
||
{
|
||
if (_variableDicts.TryGetValue(nodeIdStr, out var value))
|
||
{
|
||
return value;
|
||
}
|
||
}
|
||
NodeId nodeToRead = new(nodeIdStr);
|
||
var node = (VariableNode)await m_session.ReadNodeAsync(nodeToRead, NodeClass.Variable, false, cancellationToken);
|
||
if (OPCNode.LoadType)
|
||
await typeSystem.LoadType(node.DataType);
|
||
_variableDicts.AddOrUpdate(nodeIdStr, node);
|
||
return node;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 从服务器或缓存读取节点
|
||
/// </summary>
|
||
private VariableNode ReadNode(string nodeIdStr, bool isOnlyServer = true)
|
||
{
|
||
if (!isOnlyServer)
|
||
{
|
||
if (_variableDicts.TryGetValue(nodeIdStr, out var value))
|
||
{
|
||
return value;
|
||
}
|
||
}
|
||
NodeId nodeToRead = new(nodeIdStr);
|
||
var node = (VariableNode)m_session.ReadNode(nodeToRead, NodeClass.Variable, false);
|
||
_variableDicts.AddOrUpdate(nodeIdStr, node);
|
||
return node;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 从服务器读取节点
|
||
/// </summary>
|
||
private async Task<List<Node>> ReadNodesAsync(string[] nodeIdStrs, CancellationToken cancellationToken = default)
|
||
{
|
||
List<NodeId> nodeIds = new List<NodeId>();
|
||
foreach (var item in nodeIdStrs)
|
||
{
|
||
NodeId nodeToRead = new(item);
|
||
nodeIds.Add(nodeToRead);
|
||
}
|
||
(IList<Node>, IList<ServiceResult>) nodes = await m_session.ReadNodesAsync(nodeIds, NodeClass.Variable, false, cancellationToken);
|
||
for (int i = 0; i < nodes.Item1.Count; i++)
|
||
{
|
||
if (StatusCode.IsGood(nodes.Item2[i].StatusCode))
|
||
{
|
||
var node = ((VariableNode)nodes.Item1[i]);
|
||
await typeSystem.LoadType(node.DataType);
|
||
_variableDicts.AddOrUpdate(nodeIdStrs[i], node);
|
||
}
|
||
else
|
||
{
|
||
UpdateStatus(3, DateTime.Now, $"获取服务器节点信息失败{nodes.Item2[i]}");
|
||
}
|
||
}
|
||
return nodes.Item1.ToList();
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 特性
|
||
|
||
/// <summary>
|
||
/// 读取一个节点的所有属性
|
||
/// </summary>
|
||
public async Task<List<OPCNodeAttribute>> ReadNoteAttributeAsync(string tag, uint attributesId, CancellationToken cancellationToken = default)
|
||
{
|
||
BrowseDescriptionCollection nodesToBrowse = new();
|
||
ReadValueIdCollection nodesToRead = new();
|
||
NodeId sourceId = new(tag);
|
||
|
||
ReadValueId nodeToRead = new()
|
||
{
|
||
NodeId = sourceId,
|
||
AttributeId = attributesId
|
||
};
|
||
nodesToRead.Add(nodeToRead);
|
||
BrowseDescription nodeToBrowse = new()
|
||
{
|
||
NodeId = sourceId,
|
||
BrowseDirection = BrowseDirection.Forward,
|
||
ReferenceTypeId = ReferenceTypeIds.HasProperty,
|
||
IncludeSubtypes = true,
|
||
NodeClassMask = 0,
|
||
ResultMask = (uint)BrowseResultMask.All
|
||
};
|
||
nodesToBrowse.Add(nodeToBrowse);
|
||
|
||
var result1 = await ReadNoteAttributeAsync(nodesToBrowse, nodesToRead, cancellationToken);
|
||
|
||
var result2 = result1.Values.FirstOrDefault();
|
||
return result2;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 读取节点的所有属性
|
||
/// </summary>
|
||
public async Task<Dictionary<string, List<OPCNodeAttribute>>> ReadNoteAttributeAsync(List<string> tags, CancellationToken cancellationToken)
|
||
{
|
||
BrowseDescriptionCollection nodesToBrowse = new();
|
||
ReadValueIdCollection nodesToRead = new();
|
||
foreach (var tag in tags)
|
||
{
|
||
NodeId sourceId = new(tag);
|
||
|
||
for (uint ii = Attributes.NodeClass; ii <= Attributes.UserExecutable; ii++)
|
||
{
|
||
ReadValueId nodeToRead = new()
|
||
{
|
||
NodeId = sourceId,
|
||
AttributeId = ii
|
||
};
|
||
nodesToRead.Add(nodeToRead);
|
||
}
|
||
BrowseDescription nodeToBrowse = new()
|
||
{
|
||
NodeId = sourceId,
|
||
BrowseDirection = BrowseDirection.Forward,
|
||
ReferenceTypeId = ReferenceTypeIds.HasProperty,
|
||
IncludeSubtypes = true,
|
||
NodeClassMask = 0,
|
||
ResultMask = (uint)BrowseResultMask.All
|
||
};
|
||
nodesToBrowse.Add(nodeToBrowse);
|
||
}
|
||
|
||
return await ReadNoteAttributeAsync(nodesToBrowse, nodesToRead, cancellationToken);
|
||
}
|
||
|
||
/// <summary>
|
||
/// 读取一个节点的所有属性
|
||
/// </summary>
|
||
/// <param name="tag">节点信息</param>
|
||
/// <returns>节点的特性值</returns>
|
||
public OPCNodeAttribute[] ReadNoteAttributes(string tag)
|
||
{
|
||
NodeId sourceId = new(tag);
|
||
ReadValueIdCollection nodesToRead = new();
|
||
|
||
for (uint ii = Attributes.NodeClass; ii <= Attributes.UserExecutable; ii++)
|
||
{
|
||
ReadValueId nodeToRead = new()
|
||
{
|
||
NodeId = sourceId,
|
||
AttributeId = ii
|
||
};
|
||
nodesToRead.Add(nodeToRead);
|
||
}
|
||
|
||
int startOfProperties = nodesToRead.Count;
|
||
|
||
// find all of the pror of the node.
|
||
BrowseDescription nodeToBrowse1 = new()
|
||
{
|
||
NodeId = sourceId,
|
||
BrowseDirection = BrowseDirection.Forward,
|
||
ReferenceTypeId = ReferenceTypeIds.HasProperty,
|
||
IncludeSubtypes = true,
|
||
NodeClassMask = 0,
|
||
ResultMask = (uint)BrowseResultMask.All
|
||
};
|
||
|
||
BrowseDescriptionCollection nodesToBrowse = new()
|
||
{
|
||
nodeToBrowse1
|
||
};
|
||
|
||
// fetch property references from the server.
|
||
ReferenceDescriptionCollection references = FormUtils.Browse(m_session, nodesToBrowse, false);
|
||
|
||
if (references == null)
|
||
{
|
||
return Array.Empty<OPCNodeAttribute>();
|
||
}
|
||
|
||
for (int ii = 0; ii < references.Count; ii++)
|
||
{
|
||
// ignore external references.
|
||
if (references[ii].NodeId.IsAbsolute)
|
||
{
|
||
continue;
|
||
}
|
||
|
||
ReadValueId nodeToRead = new()
|
||
{
|
||
NodeId = (NodeId)references[ii].NodeId,
|
||
AttributeId = Attributes.Value
|
||
};
|
||
nodesToRead.Add(nodeToRead);
|
||
}
|
||
|
||
// read all values.
|
||
|
||
m_session.Read(
|
||
null,
|
||
0,
|
||
TimestampsToReturn.Neither,
|
||
nodesToRead,
|
||
out DataValueCollection results,
|
||
out DiagnosticInfoCollection diagnosticInfos);
|
||
|
||
ClientBase.ValidateResponse(results, nodesToRead);
|
||
ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
|
||
|
||
// process results.
|
||
|
||
List<OPCNodeAttribute> nodeAttribute = new();
|
||
for (int ii = 0; ii < results.Count; ii++)
|
||
{
|
||
OPCNodeAttribute item = new();
|
||
|
||
// process attribute value.
|
||
if (ii < startOfProperties)
|
||
{
|
||
// ignore attributes which are invalid for the node.
|
||
if (results[ii].StatusCode == StatusCodes.BadAttributeIdInvalid)
|
||
{
|
||
continue;
|
||
}
|
||
|
||
// get the name of the attribute.
|
||
item.Name = Attributes.GetBrowseName(nodesToRead[ii].AttributeId);
|
||
|
||
// display any unexpected error.
|
||
if (StatusCode.IsBad(results[ii].StatusCode))
|
||
{
|
||
item.Type = Utils.Format("{0}", Attributes.GetDataTypeId(nodesToRead[ii].AttributeId));
|
||
item.Value = Utils.Format("{0}", results[ii].StatusCode);
|
||
}
|
||
|
||
// display the value.
|
||
else
|
||
{
|
||
TypeInfo typeInfo = TypeInfo.Construct(results[ii].Value);
|
||
|
||
item.Type = typeInfo.BuiltInType.ToString();
|
||
|
||
if (typeInfo.ValueRank >= ValueRanks.OneOrMoreDimensions)
|
||
{
|
||
item.Type += "[]";
|
||
}
|
||
|
||
item.Value = results[ii].Value;//Utils.Format("{0}", results[ii].Value);
|
||
}
|
||
}
|
||
|
||
// process property value.
|
||
else
|
||
{
|
||
// ignore properties which are invalid for the node.
|
||
if (results[ii].StatusCode == StatusCodes.BadNodeIdUnknown)
|
||
{
|
||
continue;
|
||
}
|
||
|
||
// get the name of the property.
|
||
item.Name = Utils.Format("{0}", references[ii - startOfProperties]);
|
||
|
||
// display any unexpected error.
|
||
if (StatusCode.IsBad(results[ii].StatusCode))
|
||
{
|
||
item.Type = String.Empty;
|
||
item.Value = Utils.Format("{0}", results[ii].StatusCode);
|
||
}
|
||
|
||
// display the value.
|
||
else
|
||
{
|
||
TypeInfo typeInfo = TypeInfo.Construct(results[ii].Value);
|
||
|
||
item.Type = typeInfo.BuiltInType.ToString();
|
||
|
||
if (typeInfo.ValueRank >= ValueRanks.OneOrMoreDimensions)
|
||
{
|
||
item.Type += "[]";
|
||
}
|
||
|
||
item.Value = results[ii].Value;
|
||
}
|
||
}
|
||
|
||
nodeAttribute.Add(item);
|
||
}
|
||
|
||
return nodeAttribute.ToArray();
|
||
}
|
||
|
||
#endregion
|
||
|
||
/// <inheritdoc/>
|
||
public void Dispose()
|
||
{
|
||
Disconnect();
|
||
}
|
||
|
||
#region 私有方法
|
||
|
||
private void CertificateValidation(CertificateValidator sender, CertificateValidationEventArgs eventArgs)
|
||
{
|
||
if (ServiceResult.IsGood(eventArgs.Error))
|
||
eventArgs.Accept = true;
|
||
else if (eventArgs.Error.StatusCode.Code == StatusCodes.BadCertificateUntrusted)
|
||
eventArgs.Accept = true;
|
||
else
|
||
throw new Exception(string.Format("验证证书失败，错误代码:{0}: {1}", eventArgs.Error.Code, eventArgs.Error.AdditionalInfo));
|
||
}
|
||
|
||
private async Task<Dictionary<string, List<OPCNodeAttribute>>> ReadNoteAttributeAsync(BrowseDescriptionCollection nodesToBrowse, ReadValueIdCollection nodesToRead, CancellationToken cancellationToken)
|
||
{
|
||
int startOfProperties = nodesToRead.Count;
|
||
|
||
ReferenceDescriptionCollection references = await FormUtils.BrowseAsync(m_session, nodesToBrowse, false, cancellationToken);
|
||
|
||
if (references == null)
|
||
{
|
||
throw new("浏览失败");
|
||
}
|
||
|
||
for (int ii = 0; ii < references.Count; ii++)
|
||
{
|
||
if (references[ii].NodeId.IsAbsolute)
|
||
{
|
||
continue;
|
||
}
|
||
|
||
ReadValueId nodeToRead = new()
|
||
{
|
||
NodeId = (NodeId)references[ii].NodeId,
|
||
AttributeId = Attributes.Value
|
||
};
|
||
nodesToRead.Add(nodeToRead);
|
||
}
|
||
|
||
var result = await m_session.ReadAsync(
|
||
null,
|
||
0,
|
||
TimestampsToReturn.Neither,
|
||
nodesToRead, cancellationToken);
|
||
|
||
ClientBase.ValidateResponse(result.Results, nodesToRead);
|
||
ClientBase.ValidateDiagnosticInfos(result.DiagnosticInfos, nodesToRead);
|
||
|
||
Dictionary<string, List<OPCNodeAttribute>> nodeAttributes = new();
|
||
for (int ii = 0; ii < result.Results.Count; ii++)
|
||
{
|
||
DataValue nodeValue = result.Results[ii];
|
||
var nodeToRead = nodesToRead[ii];
|
||
OPCNodeAttribute item = new();
|
||
if (ii < startOfProperties)
|
||
{
|
||
if (nodeValue.StatusCode == StatusCodes.BadAttributeIdInvalid)
|
||
{
|
||
continue;
|
||
}
|
||
|
||
item.Name = Attributes.GetBrowseName(nodesToRead[ii].AttributeId);
|
||
if (StatusCode.IsBad(nodeValue.StatusCode))
|
||
{
|
||
item.Type = Utils.Format("{0}", Attributes.GetDataTypeId(nodesToRead[ii].AttributeId));
|
||
item.Value = Utils.Format("{0}", nodeValue.StatusCode);
|
||
}
|
||
else
|
||
{
|
||
TypeInfo typeInfo = TypeInfo.Construct(nodeValue.Value);
|
||
item.Type = typeInfo.BuiltInType.ToString();
|
||
|
||
if (typeInfo.ValueRank >= ValueRanks.OneOrMoreDimensions)
|
||
{
|
||
item.Type += "[]";
|
||
}
|
||
if (item.Name == nameof(Attributes.NodeClass))
|
||
{
|
||
item.Value = ((NodeClass)nodeValue.Value).ToString();
|
||
}
|
||
else if (item.Name == nameof(Attributes.EventNotifier))
|
||
{
|
||
item.Value = ((EventNotifierType)nodeValue.Value).ToString();
|
||
}
|
||
else
|
||
item.Value = nodeValue.Value;
|
||
}
|
||
}
|
||
|
||
if (nodeAttributes.ContainsKey(nodeToRead.NodeId.ToString()))
|
||
{
|
||
nodeAttributes[nodeToRead.NodeId.ToString()].Add(item);
|
||
}
|
||
else
|
||
{
|
||
nodeAttributes.Add(nodeToRead.NodeId.ToString(), new() { item });
|
||
}
|
||
}
|
||
return nodeAttributes;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 连接处理器连接事件处理完成。
|
||
/// </summary>
|
||
private void Server_ReconnectComplete(object sender, EventArgs e)
|
||
{
|
||
try
|
||
{
|
||
if (!Object.ReferenceEquals(sender, m_reConnectHandler))
|
||
{
|
||
return;
|
||
}
|
||
|
||
m_session = m_reConnectHandler.Session;
|
||
m_reConnectHandler.Dispose();
|
||
m_reConnectHandler = null;
|
||
|
||
// raise any additional notifications.
|
||
m_ReconnectComplete?.Invoke(this, e);
|
||
}
|
||
catch (Exception)
|
||
{
|
||
throw;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// Report the client status
|
||
/// </summary>
|
||
/// <param name="logLevel">Whether the status represents an error. </param>
|
||
/// <param name="time">The time associated with the status.</param>
|
||
/// <param name="status">The status message.</param>
|
||
/// <param name="args">Arguments used to format the status message.</param>
|
||
private void UpdateStatus(int logLevel, DateTime time, string status, params object[] args)
|
||
{
|
||
m_OpcStatusChange?.Invoke(this, new OpcUaStatusEventArgs()
|
||
{
|
||
LogLevel = logLevel,
|
||
Time = time.ToLocalTime(),
|
||
Text = String.Format(status, args),
|
||
});
|
||
}
|
||
|
||
private void Session_KeepAlive(ISession session, KeepAliveEventArgs e)
|
||
{
|
||
lock (checkLock)
|
||
{
|
||
if (!Object.ReferenceEquals(session, m_session))
|
||
{
|
||
return;
|
||
}
|
||
|
||
if (ServiceResult.IsBad(e.Status))
|
||
{
|
||
if (m_session.KeepAliveInterval <= 0)
|
||
{
|
||
UpdateStatus(3, e.CurrentTime, "Communication Error ({0})", e.Status);
|
||
return;
|
||
}
|
||
|
||
UpdateStatus(3, e.CurrentTime, "Reconnecting in {0}s", m_session.KeepAliveInterval / 1000);
|
||
|
||
if (m_reConnectHandler == null)
|
||
{
|
||
m_ReconnectStarting?.Invoke(this, e);
|
||
|
||
m_reConnectHandler = new SessionReconnectHandler();
|
||
m_reConnectHandler.BeginReconnect(m_session, m_session.KeepAliveInterval, Server_ReconnectComplete);
|
||
}
|
||
return;
|
||
}
|
||
|
||
// update status.
|
||
UpdateStatus(0, e.CurrentTime, "Session_KeepAlive Connected [{0}]", session.Endpoint.EndpointUrl);
|
||
|
||
// raise any additional notifications.
|
||
m_KeepAliveComplete?.Invoke(this, e);
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// Raises the connect complete event on the main GUI thread.
|
||
/// </summary>
|
||
private void DoConnectComplete(bool state)
|
||
{
|
||
m_ConnectComplete?.Invoke(this, state);
|
||
}
|
||
|
||
#endregion
|
||
}
|