private async Task OnRevoke(string revokeKey)
{
if (string.IsNullOrEmpty(revokeKey))
{
Log.Warn("Error while revoking cache, revokeKey can't be null");
return;
}
try
{
HashSet <string> cacheKeys;
if (RevokeKeyToCacheKeysIndex.TryGetValue(revokeKey, out cacheKeys))
{
lock (cacheKeys)
{
var arrayOfCacheKeys = cacheKeys.ToArray();// To prevent iteration over modified collection.
foreach (var cacheKey in arrayOfCacheKeys)
{
var removed = (AsyncCacheItem)MemoryCache.Remove(cacheKey);
}
}
Revokes.Meter("Succeeded", Unit.Events).Mark();
}
else
{
Revokes.Meter("Discarded", Unit.Events).Mark();
}
}
catch (Exception ex)
{
Revokes.Meter("Failed", Unit.Events).Mark();
Log.Warn("error while revoking cache", exception: ex, unencryptedTags: new { revokeKey });
}
}
private Task OnRevoke(string revokeKey)
{
var shouldLog = GetRevokeConfig().LogRequests;
if (string.IsNullOrEmpty(revokeKey))
{
Log.Warn("Error while revoking cache, revokeKey can't be null");
return(Task.FromResult(false));
}
try
{
if (shouldLog)
{
Log.Info(x => x("Revoke request received", unencryptedTags: new { revokeKey }));
}
if (RevokeKeyToCacheKeysIndex.TryGetValue(revokeKey, out HashSet <string> cacheKeys))
{
lock (cacheKeys)
{
var arrayOfCacheKeys = cacheKeys.ToArray();// To prevent iteration over modified collection.
if (shouldLog && arrayOfCacheKeys.Length == 0)
{
Log.Info(x => x("There is no CacheKey to Revoke", unencryptedTags: new { revokeKey }));
}
foreach (var cacheKey in arrayOfCacheKeys)
{
if (shouldLog)
{
Log.Info(x => x("Revoking cacheKey", unencryptedTags: new { revokeKey, cacheKey }));
}
var unused = (AsyncCacheItem)MemoryCache.Remove(cacheKey);
}
}
Revokes.Meter("Succeeded", Unit.Events).Mark();
}
else
{
if (shouldLog)
{
Log.Info(x => x("Key is not cached. No revoke is needed", unencryptedTags: new { revokeKey }));
}
Revokes.Meter("Discarded", Unit.Events).Mark();
}
}
catch (Exception ex)
{
Revokes.Meter("Failed", Unit.Events).Mark();
Log.Warn("error while revoking cache", exception: ex, unencryptedTags: new { revokeKey });
}
return(Task.FromResult(true));
}
private Task OnRevoke(string revokeKey)
{
if (revokeKey == null)
{
throw new ArgumentNullException();
}
RecentRevokesCache.RegisterRevokeKey(revokeKey, DateTime.UtcNow);
var revokeApplied = false;
if (RevokeKeyToCacheItemsIndex.TryGetValue(revokeKey, out var _))
{
lock (RevokeKeyToCacheItemsIndex)
if (RevokeKeyToCacheItemsIndex.TryGetValue(revokeKey, out var hash))
{
foreach (var item in hash)
{
item.IsRevoked = true;
}
revokeApplied = true;
}
}
if (revokeApplied)
{
Revokes.Meter("Succeeded", Unit.Events).Mark();
Log.Debug(x => x("Revoke applied", unencryptedTags: new { revokeKey }));
}
else
{
Revokes.Meter("Discarded", Unit.Events).Mark();
}
return(Task.CompletedTask);
}