mirror of
https://github.com/OPCFoundation/UA-.NETStandard.git
synced 2026-10-24 02:58:36 +08:00
Erich Barnstedt
2901d8e5bb
2. Removed client cert validation from HTTPS client and server as this is not supported on all platforms, e.g. .Net4.6. 3. Reverted back to XmlDocument from XDocument as this is now supported via a NuGet package on UWP and XDocument is not supported on .Net4.6. 4. Baseline .Net4.6 samples and assoc. controls project check-in, not working yet. 5. Moved UWP client controls from SDK to Samples directly.
481 lines
16 KiB
C#
481 lines
16 KiB
C#
/* ========================================================================
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* Copyright (c) 2005-2013 The OPC Foundation, Inc. All rights reserved.
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*
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* OPC Foundation MIT License 1.00
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* The complete license agreement can be found here:
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* http://opcfoundation.org/License/MIT/1.00/
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* ======================================================================*/
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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using System.Reflection;
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using Opc.Ua.Client;
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using Opc.Ua.Client.Controls;
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namespace Opc.Ua.Sample.Controls
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{
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public partial class SubscriptionDlg : Form
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{
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#region Constructors
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public SubscriptionDlg()
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{
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InitializeComponent();
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this.Icon = ClientUtils.GetAppIcon();
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m_SessionNotification = new NotificationEventHandler(Session_Notification);
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m_SubscriptionStateChanged = new SubscriptionStateChangedEventHandler(Subscription_StateChanged);
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m_PublishStatusChanged = new EventHandler(Subscription_PublishStatusChanged);
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}
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#endregion
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#region Private Fields
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private Subscription m_subscription;
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private NotificationEventHandler m_SessionNotification;
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private SubscriptionStateChangedEventHandler m_SubscriptionStateChanged;
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private CreateMonitoredItemsDlg m_createDialog;
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private EventHandler m_PublishStatusChanged;
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#endregion
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#region Public Interface
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/// <summary>
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/// Creates a new subscription.
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/// </summary>
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public Subscription New(Session session)
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{
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if (session == null) throw new ArgumentNullException("session");
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Subscription subscription = new Subscription(session.DefaultSubscription);
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if (!new SubscriptionEditDlg().ShowDialog(subscription))
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{
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return null;
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}
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session.AddSubscription(subscription);
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subscription.Create();
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Subscription duplicateSubscription = session.Subscriptions.FirstOrDefault(s => s.Id != 0 && s.Id.Equals(subscription.Id) && s != subscription);
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if (duplicateSubscription != null)
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{
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Utils.Trace("Duplicate subscription was created with the id: {0}", duplicateSubscription.Id);
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DialogResult result = MessageBox.Show("Duplicate subscription was created with the id: " + duplicateSubscription.Id + ". Do you want to keep it?", "Warning", MessageBoxButtons.YesNo);
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if (result == System.Windows.Forms.DialogResult.No)
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{
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duplicateSubscription.Delete(false);
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session.RemoveSubscription(subscription);
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return null;
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}
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}
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Show(subscription);
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return subscription;
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}
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/// <summary>
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/// Displays the dialog.
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/// </summary>
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public void Show(Subscription subscription)
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{
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if (subscription == null) throw new ArgumentNullException("subscription");
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Show();
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BringToFront();
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// remove previous subscription.
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if (m_subscription != null)
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{
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m_subscription.StateChanged -= m_SubscriptionStateChanged;
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m_subscription.PublishStatusChanged -= m_PublishStatusChanged;
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m_subscription.Session.Notification -= m_SessionNotification;
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}
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// start receiving notifications from the new subscription.
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m_subscription = subscription;
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if (subscription != null)
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{
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m_subscription.StateChanged += m_SubscriptionStateChanged;
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m_subscription.PublishStatusChanged += m_PublishStatusChanged;
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m_subscription.Session.Notification += m_SessionNotification;
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}
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MonitoredItemsCTRL.Initialize(subscription);
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EventsCTRL.Initialize(subscription, null);
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DataChangesCTRL.Initialize(subscription, null);
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WindowMI_Click(WindowDataChangesMI, null);
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UpdateStatus();
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}
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#endregion
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#region Private Methods
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/// <summary>
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/// Updates the controls displaying the status of the subscription.
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/// </summary>
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private void UpdateStatus()
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{
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NotificationMessage message = null;
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if (m_subscription != null)
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{
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message = m_subscription.LastNotification;
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}
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PublishingEnabledTB.Text = String.Empty;
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if (m_subscription != null)
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{
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PublishingEnabledTB.Text = (m_subscription.CurrentPublishingEnabled)?"Enabled":"Disabled";
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}
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LastUpdateTimeTB.Text = String.Empty;
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if (message != null)
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{
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LastUpdateTimeTB.Text = String.Format("{0:HH:mm:ss}", message.PublishTime.ToLocalTime());
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}
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LastMessageIdTB.Text = String.Empty;
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if (message != null)
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{
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LastMessageIdTB.Text = String.Format("{0}", message.SequenceNumber);
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}
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// determine what window to show.
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bool hasEvents = false;
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bool hasDatachanges = false;
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foreach (MonitoredItem monitoredItem in m_subscription.MonitoredItems)
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{
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if (monitoredItem.Filter is EventFilter)
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{
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hasEvents = true;
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}
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if (monitoredItem.NodeClass == NodeClass.Variable)
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{
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hasDatachanges = true;
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}
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}
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// enable appropriate windows.
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WindowEventsMI.Enabled = hasEvents;
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WindowDataChangesMI.Enabled = hasDatachanges;
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// show the datachange window if there are no event items.
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if (hasDatachanges && !hasEvents)
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{
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WindowMI_Click(WindowDataChangesMI, null);
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}
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// show events window if there are no datachange items.
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if (hasEvents && !hasDatachanges)
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{
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WindowMI_Click(WindowEventsMI, null);
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}
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}
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#endregion
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#region Event Handlers
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/// <summary>
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/// Processes a Publish repsonse from the server.
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/// </summary>
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void Session_Notification(Session session, NotificationEventArgs e)
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{
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if (InvokeRequired)
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{
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BeginInvoke(m_SessionNotification, session, e);
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return;
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}
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else if (!IsHandleCreated)
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{
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return;
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}
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try
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{
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// ignore notifications for other subscriptions.
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if (!Object.ReferenceEquals(m_subscription, e.Subscription))
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{
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return;
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}
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// notify controls of the change.
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EventsCTRL.NotificationReceived(e);
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DataChangesCTRL.NotificationReceived(e);
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// update subscription status.
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UpdateStatus();
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}
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catch (Exception exception)
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{
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GuiUtils.HandleException(this.Text, MethodBase.GetCurrentMethod(), exception);
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}
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}
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/// <summary>
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/// Handles a change to the state of the subscription.
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/// </summary>
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void Subscription_StateChanged(Subscription subscription, SubscriptionStateChangedEventArgs e)
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{
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if (InvokeRequired)
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{
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BeginInvoke(m_SubscriptionStateChanged, subscription, e);
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return;
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}
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else if (!IsHandleCreated)
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{
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return;
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}
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try
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{
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// ignore notifications for other subscriptions.
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if (!Object.ReferenceEquals(m_subscription, subscription))
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{
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return;
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}
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// notify controls of the change.
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EventsCTRL.SubscriptionChanged(e);
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DataChangesCTRL.SubscriptionChanged(e);
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MonitoredItemsCTRL.SubscriptionChanged(e);
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// update subscription status.
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UpdateStatus();
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}
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catch (Exception exception)
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{
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GuiUtils.HandleException(this.Text, MethodBase.GetCurrentMethod(), exception);
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}
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}
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/// <summary>
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/// Handles a change to the publish status for the subscription.
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/// </summary>
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void Subscription_PublishStatusChanged(object subscription, EventArgs e)
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{
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if (InvokeRequired)
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{
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BeginInvoke(m_PublishStatusChanged, subscription, e);
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return;
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}
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else if (!IsHandleCreated)
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{
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return;
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}
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try
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{
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// ignore notifications for other subscriptions.
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if (!Object.ReferenceEquals(m_subscription, subscription))
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{
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return;
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}
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// notify controls of the change.
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DataChangesCTRL.PublishStatusChanged();
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}
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catch (Exception exception)
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{
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GuiUtils.HandleException(this.Text, MethodBase.GetCurrentMethod(), exception);
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}
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}
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private void SubscriptionMI_DropDownOpening(object sender, EventArgs e)
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{
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try
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{
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SubscriptionEnablePublishingMI.Checked = m_subscription.CurrentPublishingEnabled;
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}
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catch (Exception exception)
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{
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GuiUtils.HandleException(this.Text, MethodBase.GetCurrentMethod(), exception);
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}
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}
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private void WindowMI_Click(object sender, EventArgs e)
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{
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try
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{
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if (sender == WindowMonitoredItemsMI)
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{
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WindowMonitoredItemsMI.Checked = !WindowMonitoredItemsMI.Checked;
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WindowEventsMI.Checked = false;
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MonitoredItemsCTRL.Visible = true;
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SplitterPN.Panel1Collapsed = !WindowMonitoredItemsMI.Checked;
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}
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else if (sender == WindowDataChangesMI)
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{
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WindowDataChangesMI.Checked = true;
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WindowEventsMI.Checked = false;
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MonitoredItemsCTRL.Visible = true;
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EventsCTRL.Visible = false;
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DataChangesCTRL.Visible = true;
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Text = String.Format("{0} - {1}", m_subscription.DisplayName, "Data Changes");
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}
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else if (sender == WindowEventsMI)
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{
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WindowDataChangesMI.Checked = false;
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WindowEventsMI.Checked = true;
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MonitoredItemsCTRL.Visible = true;
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EventsCTRL.Visible = true;
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DataChangesCTRL.Visible = false;
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Text = String.Format("{0} - {1}", m_subscription.DisplayName, "Events");
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}
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}
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catch (Exception exception)
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{
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GuiUtils.HandleException(this.Text, MethodBase.GetCurrentMethod(), exception);
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}
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}
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private void SubscriptionEnablePublishingMI_Click(object sender, EventArgs e)
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{
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try
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{
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m_subscription.SetPublishingMode(SubscriptionEnablePublishingMI.Checked);
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}
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catch (Exception exception)
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{
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GuiUtils.HandleException(this.Text, MethodBase.GetCurrentMethod(), exception);
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}
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}
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private void SubscriptionDlg_FormClosing(object sender, FormClosingEventArgs e)
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{
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try
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{
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if (m_createDialog != null)
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{
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m_createDialog.Close();
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}
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MonitoredItemsCTRL.FormClosing();
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}
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catch (Exception exception)
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{
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GuiUtils.HandleException(this.Text, MethodBase.GetCurrentMethod(), exception);
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}
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}
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private void EditMI_Click(object sender, EventArgs e)
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{
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try
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{
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if (!new SubscriptionEditDlg().ShowDialog(m_subscription))
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{
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return;
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}
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m_subscription.Modify();
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}
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catch (Exception exception)
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{
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GuiUtils.HandleException(this.Text, MethodBase.GetCurrentMethod(), exception);
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}
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}
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private void SubscriptionCreateItemMI_Click(object sender, EventArgs e)
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{
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try
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{
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if (m_createDialog == null)
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{
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m_createDialog = new CreateMonitoredItemsDlg();
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m_createDialog.FormClosing += new FormClosingEventHandler(CreateDialog_FormClosing);
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}
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m_createDialog.Show(m_subscription, false);
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}
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catch (Exception exception)
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{
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GuiUtils.HandleException(this.Text, MethodBase.GetCurrentMethod(), exception);
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}
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}
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void CreateDialog_FormClosing(object sender, FormClosingEventArgs e)
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{
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try
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{
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if (m_createDialog == sender)
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{
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m_createDialog = null;
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}
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}
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catch (Exception exception)
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{
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GuiUtils.HandleException(this.Text, MethodBase.GetCurrentMethod(), exception);
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}
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}
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private void SubscriptionCreateItemFromTypeMI_Click(object sender, EventArgs e)
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{
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try
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{
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if (m_createDialog == null)
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{
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m_createDialog = new CreateMonitoredItemsDlg();
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m_createDialog.FormClosing += new FormClosingEventHandler(CreateDialog_FormClosing);
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}
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m_createDialog.Show(m_subscription, true);
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}
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catch (Exception exception)
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{
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GuiUtils.HandleException(this.Text, MethodBase.GetCurrentMethod(), exception);
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}
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}
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private void ConditionRefreshMI_Click(object sender, EventArgs e)
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{
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try
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{
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m_subscription.ConditionRefresh();
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}
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catch (Exception exception)
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{
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GuiUtils.HandleException(this.Text, MethodBase.GetCurrentMethod(), exception);
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}
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}
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#endregion
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}
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}
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