protected virtual void OnMessage(RedisChannel channel, RedisValue redisValue)
{
var message = JsonConvert.DeserializeObject <RedisCachingMessage>(redisValue);
if (!string.IsNullOrEmpty(message.InstanceId) && !message.InstanceId.EqualsInvariant(_instanceId))
{
_log.LogTrace($"Received message {message.ToString()}");
foreach (var key in message.CacheKeys?.OfType <string>() ?? Array.Empty <string>())
{
if (message.IsToken)
{
_log.LogTrace($"Trying to cancel token with key: {key}");
CancellableCacheRegion.CancelForKey(key, propagate: false);
}
else
{
_log.LogTrace($"Trying to remove cache entry with key: {key} from in-memory cache");
base.Remove(key);
}
}
}
}
public void CancelTokenForKeyOnTokenCancelledCallCounts(bool propagate, int callbackCount)
{
//Arrange
var registeryCallbackInvokedCount = 0;
CancellableCacheRegion.OnTokenCancelled = args =>
{
Interlocked.Increment(ref registeryCallbackInvokedCount);
};
var cache = GetPlatformMemoryCache();
var key = "myKey";
var value1 = new object();
var value2 = new object();
var key1 = CacheRegion.GenerateRegionTokenKey(key);
var token1 = CacheRegion.CreateChangeTokenForKey(key);
var key2 = CacheRegion2.GenerateRegionTokenKey(key);
var token2 = CacheRegion2.CreateChangeTokenForKey(key);
//Act
cache.Set(key1, value1, token1);
cache.Set(key2, value2, token2);
//Assertion
var result = cache.Get(key1);
Assert.Same(value1, result);
result = cache.Get(key2);
Assert.Same(value2, result);
//Act
CancellableCacheRegion.CancelForKey(key1, propagate);
//Assertion
result = cache.Get(key1);
Assert.Null(result);
result = cache.Get(key2);
Assert.Same(value2, result);
//Act
CancellableCacheRegion.CancelForKey(key2, propagate);
//Assertion
result = cache.Get(key2);
Assert.Null(result);
//Arrange
token1 = CacheRegion.CreateChangeTokenForKey(key);
token2 = CacheRegion2.CreateChangeTokenForKey(key);
cache.Set(key1, value1, token1);
cache.Set(key2, value2, token2);
//Act
//cancel region
CancellableCacheRegion.CancelForKey(CacheRegion.GenerateRegionTokenKey(), propagate);
//Assertion
result = cache.Get(key1);
Assert.Null(result);
result = cache.Get(key2);
Assert.Same(value2, result);
//Arrange
token1 = CacheRegion.CreateChangeTokenForKey(key);
token2 = CacheRegion2.CreateChangeTokenForKey(key);
cache.Set(key1, value1, token1);
cache.Set(key2, value2, token2);
//Act
//cancel global region
CancellableCacheRegion.CancelForKey(GlobalCacheRegion.GenerateRegionTokenKey(), propagate);
result = cache.Get(key1);
Assert.Null(result);
result = cache.Get(key2);
Assert.Null(result);
//Callback mustn't call
Assert.Equal(callbackCount, registeryCallbackInvokedCount);
}