public async Task <ActionResponseBag> ParseStreamAsync(Stream stream)
{
string text = null;
ActionResponseBag actions = new ActionResponseBag();
try
{
using (StreamReader streamReader = new StreamReader(stream))
{
text = await streamReader.ReadToEndAsync().ConfigureAwait(false);
}
}
catch
{
return(actions);
}
if (!string.IsNullOrEmpty(text))
{
try
{
actions = JsonConvert.DeserializeObject <ActionResponseBag>(text);
}
catch (Exception ex)
{
throw new TargetedNotificationsException(ex.Message, ex);
}
}
return(actions);
}
public override Task <GroupedRemoteSettings> Start()
{
Interlocked.Exchange(ref startTask, Task.Run(async delegate
{
GroupedRemoteSettings result = null;
queryIteration++;
ActionResponseBag actionResponseBag = await GetTargetedNotificationActionsAsync().ConfigureAwait(false);
if (actionResponseBag != null)
{
ProcessActionResponseBag(actionResponseBag);
result = await ProcessRemoteSettingsFromTargetedNotificationsAsync().ConfigureAwait(false);
}
StartAgainAfter(serviceQueryLoopTimeSpan);
return(result);
}));
return(startTask);
}
protected override async Task <ActionResponseBag> GetTargetedNotificationActionsAsync()
{
IEnumerable <Task <IEnumerable <ActionResponse> > > tasks = directories.SelectMany((IDirectoryReader d) => d.ReadAllFiles()).Select(async delegate(DirectoryReaderContext x)
{
try
{
return(await localTestParser.ParseStreamAsync(x));
}
catch (TargetedNotificationsException exception)
{
logger.LogError("Error parsing test file: " + x.DirectoryName + "-" + x.FileName, exception);
}
return(Enumerable.Empty <ActionResponse>());
});
ActionResponseBag actionResponseBag = new ActionResponseBag();
ActionResponseBag actionResponseBag2 = actionResponseBag;
actionResponseBag2.Actions = (await Task.WhenAll(tasks)).SelectMany((IEnumerable <ActionResponse> x) => x);
return(actionResponseBag);
}
protected override async Task <ActionResponseBag> GetTargetedNotificationActionsAsync()
{
IEnumerable <string> previouslyCachedRuleIds = useCache ? notificationAndCourtesyCache.GetAllCachedRuleIds(cacheTimeoutMs) : Enumerable.Empty <string>();
Stream stream = await SendTargetedNotificationsRequestAsync(previouslyCachedRuleIds).ConfigureAwait(false);
if (stream != null)
{
try
{
ActionResponseBag actionResponseBag = await notificationsParser.ParseStreamAsync(stream).ConfigureAwait(false);
if (useCache)
{
notificationAndCourtesyCache.MergeNewResponse(actionResponseBag, previouslyCachedRuleIds, cacheTimeoutMs);
}
return(actionResponseBag);
}
catch (TargetedNotificationsException exception)
{
string eventName = "VS/Core/TargetedNotifications/ApiResponseParseFailure";
Dictionary <string, object> additionalProperties = new Dictionary <string, object>
{
{
"VS.Core.TargetedNotifications.ApiResponseMs",
apiTimer?.ElapsedMilliseconds
},
{
"VS.Core.TargetedNotifications.Iteration",
queryIteration
}
};
targetedNotificationsTelemetry.PostCriticalFault(eventName, "Failed to parse TN API response", exception, additionalProperties);
}
}
return(null);
}
private void ProcessActionResponseBag(ActionResponseBag response)
{
logger.LogInfo($"Received {response.Actions.Count()} actions from {Name}");
List <string> list;
try
{
actionsAndCategoriesLock.Wait();
list = tnActions.Values.SelectMany((Dictionary <string, ActionResponse> x) => x.Keys).ToList();
foreach (ActionResponse action in response.Actions)
{
if (!tnActions.TryGetValue(action.ActionPath, out Dictionary <string, ActionResponse> value))
{
value = new Dictionary <string, ActionResponse>(StringComparer.OrdinalIgnoreCase);
tnActions[action.ActionPath] = value;
}
if (action.RuleId != null)
{
value[action.RuleId] = action;
}
else
{
logger.LogInfo("Skipping action that has no RuleId " + action.ActionPath + " from " + Name);
}
}
foreach (ActionCategory category in response.Categories)
{
ActionCategories[category.CategoryId] = category;
}
}
finally
{
actionsAndCategoriesLock.Release();
}
lock (subscriptionLockObject)
{
try
{
foreach (string key in tnSubscriptionCallbacks.Keys)
{
foreach (Type key2 in tnSubscriptionCallbacks[key].Keys)
{
MethodInfo methodInfo = typeof(TargetedNotificationsProviderBase).GetMethod("SubscribeActionsInternal", BindingFlags.Instance | BindingFlags.NonPublic).MakeGenericMethod(key2);
foreach (object item in tnSubscriptionCallbacks[key][key2])
{
methodInfo.Invoke(this, new object[3]
{
key,
item,
list
});
}
}
}
}
catch (Exception exception)
{
string eventName = "VS/Core/TargetedNotifications/ReSubscribeFailure";
targetedNotificationsTelemetry.PostCriticalFault(eventName, "failure", exception);
}
}
string eventName2 = "VS/Core/TargetedNotifications/ActionsReceived";
IEnumerable <ActionResponse> source = response.Actions ?? Enumerable.Empty <ActionResponse>();
Dictionary <string, IEnumerable <string> > val = (from x in source
group x by x.ActionPath).ToDictionary((IGrouping <string, ActionResponse> x) => x.Key, (IGrouping <string, ActionResponse> x) => x.Select((ActionResponse y) => y.RuleId));
List <string> list2 = ActionCategories.Keys.ToList();
Dictionary <string, object> additionalProperties = new Dictionary <string, object>
{
{
"VS.Core.TargetedNotifications.ProviderName",
Name
},
{
"VS.Core.TargetedNotifications.Actions",
new TelemetryComplexProperty(val)
},
{
"VS.Core.TargetedNotifications.ActionCount",
source.Count()
},
{
"VS.Core.TargetedNotifications.Categories",
new TelemetryComplexProperty(list2)
},
{
"VS.Core.TargetedNotifications.CategoryCount",
list2.Count
},
{
"VS.Core.TargetedNotifications.ApiResponseMs",
apiTimer?.ElapsedMilliseconds
},
{
"VS.Core.TargetedNotifications.Iteration",
queryIteration
}
};
targetedNotificationsTelemetry.PostSuccessfulOperation(eventName2, additionalProperties);
}
/// <summary>
/// Called when a new ActionResponseBag is received from the
/// service. This merges that new data into the existing cache
/// </summary>
/// <param name="newResponse">An ActionResponseBag received from the Azure API</param>
/// <param name="previouslyCachedRuleIds">Set of rule IDs that were previously read from the cache and should not be written back</param>
/// <param name="timeoutMs">Maximum time to wait, in milliseconds, for the cache lock. Leave null for infinite.</param>
public void MergeNewResponse(ActionResponseBag newResponse, IEnumerable <string> previouslyCachedRuleIds, int?timeoutMs = null)
{
if (Storage.Lock(timeoutMs))
{
Stopwatch stopwatch = Stopwatch.StartNew();
try
{
DateTime utcNow = DateTime.UtcNow;
bool flag = false;
CachedTargetedNotifications localCacheCopy = Storage.GetLocalCacheCopy();
List <string> list = new List <string>();
List <string> list2 = new List <string>();
foreach (ActionResponse action in newResponse.Actions)
{
if (action.SendAlways)
{
if (localCacheCopy.Actions.Remove(action.RuleId))
{
flag = true;
}
}
else if (!previouslyCachedRuleIds.Contains(action.RuleId))
{
localCacheCopy.Actions[action.RuleId] = new CachedActionResponseTime
{
CachedTime = (localCacheCopy.Actions.ContainsKey(action.RuleId) ? localCacheCopy.Actions[action.RuleId].CachedTime : utcNow),
MaxWaitTimeSpan = ((action.MaxWaitTimeSpan == null) ? defaultMaxWaitTimeSpan : TimeSpan.Parse(action.MaxWaitTimeSpan))
};
list.Add(action.RuleId);
flag = true;
}
}
string[] array = localCacheCopy.Actions.Keys.ToArray();
foreach (string text in array)
{
CachedActionResponseTime cachedActionResponseTime = localCacheCopy.Actions[text];
if (utcNow >= cachedActionResponseTime.CachedTime.Add(cachedActionResponseTime.MaxWaitTimeSpan))
{
localCacheCopy.Actions.Remove(text);
list2.Add(text);
flag = true;
}
}
foreach (ActionCategory category in newResponse.Categories)
{
if (localCacheCopy.Categories.ContainsKey(category.CategoryId))
{
TimeSpan timeSpan = TimeSpan.Parse(category.WaitTimeSpan);
if (localCacheCopy.Categories[category.CategoryId].WaitTimeSpan != timeSpan)
{
localCacheCopy.Categories[category.CategoryId].WaitTimeSpan = timeSpan;
flag = true;
}
}
}
array = localCacheCopy.Categories.Keys.ToArray();
foreach (string key in array)
{
CachedActionCategoryTime cachedActionCategoryTime = localCacheCopy.Categories[key];
if (utcNow >= cachedActionCategoryTime.LastSent.Add(cachedActionCategoryTime.WaitTimeSpan))
{
localCacheCopy.Categories.Remove(key);
flag = true;
}
}
if (flag)
{
Storage.SetLocalCache(localCacheCopy);
}
if (list.Count > 0)
{
responseUsesCachedRules = true;
}
stopwatch.Stop();
if (list.Count > 0 || list2.Count > 0 || localCacheCopy.Actions.Count > 0 || localCacheCopy.Categories.Count > 0)
{
string eventName = "VS/Core/TargetedNotifications/CacheMerged";
Dictionary <string, object> additionalProperties = new Dictionary <string, object>
{
{
"VS.Core.TargetedNotifications.AddedActions",
new TelemetryComplexProperty(list)
},
{
"VS.Core.TargetedNotifications.AddedActionsCount",
list.Count
},
{
"VS.Core.TargetedNotifications.ExpiredActions",
new TelemetryComplexProperty(list2)
},
{
"VS.Core.TargetedNotifications.ExpiredActionsCount",
list2.Count
},
{
"VS.Core.TargetedNotifications.CachedActions",
new TelemetryComplexProperty(localCacheCopy.Actions.Keys.ToList())
},
{
"VS.Core.TargetedNotifications.CachedActionsCount",
localCacheCopy.Actions.Count
},
{
"VS.Core.TargetedNotifications.CachedCategories",
new TelemetryComplexProperty(localCacheCopy.Categories.Keys.ToList())
},
{
"VS.Core.TargetedNotifications.CachedCategoriesCount",
localCacheCopy.Categories.Count
},
{
"VS.Core.TargetedNotifications.DurationMs",
stopwatch.ElapsedMilliseconds
}
};
telemetry.PostSuccessfulOperation(eventName, additionalProperties);
}
}
catch (Exception exception)
{
stopwatch.Stop();
string eventName2 = "VS/Core/TargetedNotifications/CacheMergeFailure";
string[] array2 = (from a in newResponse.Actions
where !a.SendAlways
select a.RuleId).Except(previouslyCachedRuleIds).ToArray();
Dictionary <string, object> additionalProperties2 = new Dictionary <string, object>
{
{
"VS.Core.TargetedNotifications.SendOnceActions",
new TelemetryComplexProperty(array2)
},
{
"VS.Core.TargetedNotifications.SendOnceActionsCount",
array2.Length
},
{
"VS.Core.TargetedNotifications.DurationMs",
stopwatch.ElapsedMilliseconds
}
};
telemetry.PostCriticalFault(eventName2, "Failed to merge new response with cache", exception, additionalProperties2);
}
finally
{
Storage.Unlock();
}
}
else
{
string eventName3 = "VS/Core/TargetedNotifications/CacheLockTimeout";
Dictionary <string, object> additionalProperties3 = new Dictionary <string, object>
{
{
"VS.Core.TargetedNotifications.Operation",
"MergeNewResponse"
},
{
"VS.Core.TargetedNotifications.TimeoutMs",
timeoutMs
}
};
telemetry.PostDiagnosticFault(eventName3, "Timeout acquiring cache lock", null, additionalProperties3);
}
}
