protected void Application_Start()
{
var msg = "WebRole: Application_Start";
GenUtils.PriorityLogMsg("info", msg, null);
ElmcityApp.wrd = WebRoleData.GetWrd();
ElmcityApp.RegisterRoutes(RouteTable.Routes, ElmcityApp.wrd);
GenUtils.PriorityLogMsg("info", RouteTable.Routes.Count + " routes registered", null);
Utils.ScheduleTimer(PurgeCache, CalendarAggregator.Configurator.webrole_cache_purge_interval_minutes, name: "PurgeCache", startnow: false);
Utils.ScheduleTimer(ReloadSettingsAndRoutes, minutes: CalendarAggregator.Configurator.webrole_reload_interval_minutes, name: "ReloadSettingsAndRoutes", startnow: true);
Utils.ScheduleTimer(MakeTablesAndCharts, minutes: CalendarAggregator.Configurator.web_make_tables_and_charts_interval_minutes, name: "MakeTablesAndCharts", startnow: false);
ElmcityUtils.Monitor.TryStartMonitor(CalendarAggregator.Configurator.process_monitor_interval_minutes, CalendarAggregator.Configurator.process_monitor_table);
}
public static void _ReloadSettingsAndRoutes()
{
GenUtils.LogMsg("status", "webrole _ReloadRoutes", null);
bool new_routes = false;
try
{
var settings = GenUtils.GetSettingsFromAzureTable();
if (settings.Keys.Count == 0)
{
GenUtils.PriorityLogMsg("exception", "ReloadSettings: no settings!", null);
}
else
{
ElmcityController.settings = settings;
}
}
catch (Exception e0)
{
var msg = "_ReloadSettingsAndRoutes: settings";
GenUtils.PriorityLogMsg("exception", msg, e0.Message);
}
try
{
var themes = Utils.GetThemesDict();
if (ObjectUtils.DictOfDictStrEqualsDictOfDictStr(themes, ElmcityController.themes) == false)
{
GenUtils.LogMsg("status", "_ReloadSettingsAndRoutes", "reloading themes");
lock (ElmcityController.themes)
{
ElmcityController.themes = themes;
}
}
}
catch (Exception e2)
{
var msg = "_ReloadSettingsAndRoutes: themes";
GenUtils.PriorityLogMsg("exception", msg, e2.Message);
}
return;
try
{
var new_wrd = WebRoleData.GetWrd();
if (new_wrd == null || wrd.IsConsistent() == false)
{
GenUtils.PriorityLogMsg("warning", "null or inconsistent WebRoleData!", null);
return;
}
if (new_wrd.ready_ids.Count != ElmcityApp.wrd.ready_ids.Count) // did # of hubs change? either on initial load or subsequently
{
new_routes = true; // force rebuild of route map
GenUtils.LogMsg("status", "Reload: found a new hub", null);
WebRoleData.SaveTimestampedWrd(ElmcityApp.wrd);
lock (ElmcityApp.wrd)
{
ElmcityApp.wrd = new_wrd; // update WebRoleData (todo: rewarm caches affected)
}
}
foreach (var id in ElmcityApp.wrd.ready_ids) // did any hub's renderer change?
{
var cached_renderer = ElmcityApp.wrd.renderers[id];
var current_renderer = Utils.AcquireRenderer(id);
if (cached_renderer.timestamp != current_renderer.timestamp) // timestamp changed
{
if (!Utils.RenderersAreEqual(cached_renderer, current_renderer, except_keys: new List <string>()
{
"timestamp"
}))
{
GenUtils.LogMsg("status", "Reload: new renderer for " + id, null);
lock (ElmcityApp.wrd)
{
ElmcityApp.wrd.renderers[id] = current_renderer; // update the renderer
if (ElmcityApp.home_controller != null) // skip this if we found a change on startup, controller not ready
{
var cache = new AspNetCache(ElmcityApp.home_controller.HttpContext.Cache);
var url = Utils.MakeBaseZonelessUrl(id);
cache.Remove(url); // flush cached objects for id
var obj = HttpUtils.FetchUrl(new Uri(url)); // rewarm cache
}
}
}
}
}
}
catch (Exception e1)
{
GenUtils.PriorityLogMsg("exception", "_ReloadSettingsAndRoutes: cannot check/update wrd", e1.Message + e1.StackTrace);
}
if (new_routes)
{
var existing_routes = RouteTable.Routes;
var route_count = existing_routes.Count;
try
{
GenUtils.LogMsg("status", "_ReloadSettingsAndRoutes: registering " + route_count + " routes", null);
lock (RouteTable.Routes)
{
var route_count_old = RouteTable.Routes.Count;
GenUtils.PriorityLogMsg("info", RouteTable.Routes.Count + " routes before reload", null);
RouteTable.Routes.Clear();
ElmcityApp.RegisterRoutes(RouteTable.Routes, ElmcityApp.wrd);
GenUtils.PriorityLogMsg("info", RouteTable.Routes.Count + " routes registered", null);
var route_count_new = RouteTable.Routes.Count;
if (route_count_new < route_count_old)
{
GenUtils.PriorityLogMsg("warning", "route count was " + route_count_old + ", is " + route_count_new, null);
}
}
}
catch (Exception e3)
{
GenUtils.PriorityLogMsg("exception", "_ReloadSettingsAndRoutes: registering " + route_count + " routes", e3.Message + e3.StackTrace);
ElmcityApp.RegisterRoutes(existing_routes, ElmcityApp.wrd);
}
}
}