Feature: Held Devices Noticeboard

Provides a noticeboard for all devices, not just those assigned to users.
2013-07-04 15:29:46 +10:00
parent b1d16ae87c
commit aa54d93e8e
37 changed files with 2412 additions and 252 deletions
@@ -0,0 +1,72 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Microsoft.AspNet.SignalR;
+using System.Reactive.Linq;
+using Disco.Data.Repository.Monitor;
+using Disco.Models.Repository;
+
+namespace Disco.BI.Interop.SignalRHandlers
+{
+    public class HeldDeviceNotifications : PersistentConnection
+    {
+        private static bool subscribed = false;
+        private static object subscribeLock = new object();
+        private static IPersistentConnectionContext notificationContext;
+
+        static HeldDeviceNotifications()
+        {
+            if (!subscribed)
+                lock (subscribeLock)
+                    if (!subscribed)
+                    {
+                        notificationContext = GlobalHost.ConnectionManager.GetConnectionContext<HeldDeviceNotifications>();
+
+                        Disco.Data.Repository.Monitor.RepositoryMonitor.StreamAfterCommit.Where(e => e.EntityType == typeof(Job)).Subscribe(JobUpdated);
+
+                        Disco.Data.Repository.Monitor.RepositoryMonitor.StreamAfterCommit.Where(e =>
+                            e.EntityType == typeof(Device) &&
+                            (e.ModifiedProperties.Contains("Location") ||
+                            e.ModifiedProperties.Contains("DeviceModelId") ||
+                            e.ModifiedProperties.Contains("DeviceProfileId") ||
+                            e.ModifiedProperties.Contains("DeviceBatchId") ||
+                            e.ModifiedProperties.Contains("ComputerName") ||
+                            e.ModifiedProperties.Contains("AssignedUserId"))
+                            ).Subscribe(DeviceUpdated);
+
+                        Disco.Data.Repository.Monitor.RepositoryMonitor.StreamAfterCommit.Where(e =>
+                            e.EntityType == typeof(User) &&
+                            e.ModifiedProperties.Contains("DisplayName")
+                            ).Subscribe(UserUpdated);
+
+                        subscribed = true;
+                    }
+        }
+
+        private static void JobUpdated(RepositoryMonitorEvent e)
+        {
+            Job j = (Job)e.Entity;
+
+            if (j.DeviceSerialNumber != null)
+                notificationContext.Connection.Broadcast(j.DeviceSerialNumber);
+        }
+        private static void DeviceUpdated(RepositoryMonitorEvent e)
+        {
+            Device d = (Device)e.Entity;
+
+            notificationContext.Connection.Broadcast(d.SerialNumber);
+        }
+        private static void UserUpdated(RepositoryMonitorEvent e)
+        {
+            User u = (User)e.Entity;
+
+            var userDevices = e.dbContext.Devices.Where(d => d.AssignedUserId == u.Id);
+
+            foreach (var userDevice in userDevices)
+            {
+                notificationContext.Connection.Broadcast(userDevice.SerialNumber);
+            }
+        }
+    }
+}