Update: Disco Online Services Update Checking

Migrates Disco Update checking to new services at https://services.discoict.com.au.
2014-07-23 19:14:08 +10:00
parent 4b3905b4fc
commit 6700d092b3
31 changed files with 621 additions and 523 deletions
@@ -0,0 +1,86 @@
+using Disco.Data.Repository;
+using Disco.Services.Tasks;
+using Quartz;
+using System;
+using System.Linq;
+
+namespace Disco.Services.Interop.DiscoServices
+{
+    public class UpdateQueryTask : ScheduledTask
+    {
+        public override string TaskName { get { return "Disco ICT - Check for Update"; } }
+        public override bool SingleInstanceTask { get { return true; } }
+        public override bool CancelInitiallySupported { get { return false; } }
+
+        public override void InitalizeScheduledTask(DiscoDataContext Database)
+        {
+            // Random time between midday and midnight.
+            var rnd = new Random();
+
+            var rndHour = rnd.Next(12, 23);
+            var rndMinute = rnd.Next(0, 59);
+
+            TriggerBuilder triggerBuilder = TriggerBuilder.Create().
+                WithSchedule(CronScheduleBuilder.DailyAtHourAndMinute(rndHour, rndMinute));
+
+            this.ScheduleTask(triggerBuilder);
+        }
+
+        protected override void ExecuteTask()
+        {
+            using (DiscoDataContext database = new DiscoDataContext())
+            {
+                try
+                {
+                    UpdateQuery.Check(database, true, this.Status);
+                }
+                catch (Exception ex)
+                {
+                    ScheduledTasksLog.LogScheduledTaskException(this.Status.TaskName, this.Status.SessionId, this.Status.TaskType, ex);
+
+                    // Could be proxy error - try again without proxy:
+                    UpdateQuery.Check(database, false, this.Status);
+                }
+            }
+        }
+
+        public static ScheduledTaskStatus ScheduleNow()
+        {
+            var taskStatus = RunningStatus;
+            if (taskStatus != null)
+                return taskStatus;
+            else
+            {
+                var task = new UpdateQueryTask();
+                return task.ScheduleTask();
+            }
+        }
+
+        public static DateTime? NextScheduled
+        {
+            get
+            {
+                DateTime timestamp = DateTime.MaxValue;
+                var tasks = ScheduledTasks.GetTaskStatuses(typeof(UpdateQueryTask)).ToList();
+
+                foreach (var t in tasks)
+                    if (t.NextScheduledTimestamp != null && t.NextScheduledTimestamp.Value < timestamp)
+                        timestamp = t.NextScheduledTimestamp.Value;
+
+                if (timestamp != DateTime.MaxValue)
+                    return timestamp;
+                else
+                    return null;
+            }
+        }
+
+        public static ScheduledTaskStatus RunningStatus
+        {
+            get
+            {
+                return ScheduledTasks.GetTaskStatuses(typeof(UpdateQueryTask)).Where(ts => ts.IsRunning).FirstOrDefault();
+            }
+        }
+
+    }
+}