public ClusterMessage Map(NetMQMessage source)
{
var envelope = new ClusterMessageBuilder().Build();
envelope.Header = _byteSerializer.Deserialize <MessageHeader>(source.Pop().Buffer);
if (envelope.Header.PayloadType == MessagePayloadType.Raw)
{
envelope.RawFrames = source.Select(f => f.ToByteArray()).ToList();
}
else if (envelope.Header.PayloadType == MessagePayloadType.Object || envelope.Header.PayloadType == MessagePayloadType.InternalObject)
{
var bytes = source.FirstOrDefault()?.ToByteArray();
if (bytes != null)
{
envelope.PayloadObject = _byteSerializer.DeserializeObject(bytes);
}
}
else if (envelope.Header.PayloadType == MessagePayloadType.CommandString)
{
envelope.CommandStrings = source
.Select(f => f.ToByteArray())
.Select(b => Encoding.Unicode.GetString(b))
.ToList();
}
return(envelope);
}
public static IBlobSerializer AsBlobSerializer(this IByteSerializer serializer)
{
return(new BlobSerializerDelegate(
serializer.SerializeToBytes,
(data, type) => serializer.Deserialize(data, type),
serializer.CanDeserialize));
}
public async Task <TResponse> Handle(TRequest request, CancellationToken cancellationToken,
RequestHandlerDelegate <TResponse> next)
{
if (!_options.Value.Enabled ||
!(request is ICacheableQuery cacheableQuery) ||
cacheableQuery.BypassCache)
{
return(await next());
}
if (cacheableQuery.ReplaceCachedEntry)
{
_logger.LogInformation($"Replacing cache entry for key '{cacheableQuery.CacheKey}'.");
var response = await next();
await AddToCache(cancellationToken, response, cacheableQuery);
return(response);
}
byte[]? cachedResponse = await _cache.GetAsync(cacheableQuery.CacheKey, cancellationToken);
if (cachedResponse == null)
{
_logger.LogInformation($"Cache miss for key '{cacheableQuery.CacheKey}'. Adding to cache.");
var response = await next();
await AddToCache(cancellationToken, response, cacheableQuery);
return(response);
}
_logger.LogDebug($"Cache hit for key '{cacheableQuery.CacheKey}'.");
return(_byteSerializer.Deserialize <TResponse>(cachedResponse));
}
public static bool CanSerializeBytes <T>(this IByteSerializer serializer, T item)
{
var text = serializer.SerializeToBytes(item);
var obj = serializer.Deserialize <T>(text);
return(obj.Equals(item));
}
public async Task <TResponse> Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate <TResponse> next)
{
if (request is ICacheableQuery cacheableQuery)
{
TResponse response;
async Task <TResponse> GetResponseAndAddToCache()
{
response = await next();
var options = cacheableQuery.SlidingExpiration != null ? new DistributedCacheEntryOptions {
SlidingExpiration = cacheableQuery.SlidingExpiration
} : defaultCacheOptions;
await cache.SetAsync(cacheableQuery.CacheKey, byteSerializer.Serialize(response), options, cancellationToken);
return(response);
}
if (cacheableQuery.ReplaceCachedEntry)
{
logger.LogInformation($"Replacing cache entry for key '{cacheableQuery.CacheKey}'.");
response = await GetResponseAndAddToCache();
}
else
{
var cachedResponse = await cache.GetAsync(cacheableQuery.CacheKey, cancellationToken);
if (cachedResponse != null)
{
logger.LogInformation($"Cache hit for key '{cacheableQuery.CacheKey}'.");
response = byteSerializer.Deserialize <TResponse>(cachedResponse);
}
else
{
logger.LogInformation($"Cache miss for key '{cacheableQuery.CacheKey}'. Adding to cache.");
response = await GetResponseAndAddToCache();
}
}
if (cacheableQuery.RefreshCachedEntry)
{
logger.LogInformation($"Cache refreshed for key '{cacheableQuery.CacheKey}'.");
await cache.RefreshAsync(cacheableQuery.CacheKey, cancellationToken);
}
return(response);
}
else
{
return(await next());
}
}
public string Decrypt <T>(string json) where T : new()
{
var jObject = JObject.Parse(json);
var prop = GetPropertiesToEncrypt(typeof(T));
foreach (var p in prop)
{
if (p.CanRead && p.CanWrite)
{
var bytes = Convert.FromBase64String((string)jObject[p.Name]);
bytes = _encrypting.Unprotect(bytes);
if (bytes == null)
{
return(null);
}
dynamic variable = _byteSerializer.Deserialize(bytes, p.PropertyType);
jObject[p.Name] = variable;
}
}
return(jObject.ToString());
}
/// <summary>
/// Gets the object from the table.
/// </summary>
/// <typeparam name="T">Type of object.</typeparam>
/// <param name="item">Table item.</param>
/// <returns>Object T if item found, otherwise default{T}.</returns>
protected virtual T GetObject <T>(SQliteCacheTable item)
{
return((item != null) ? _serializer.Deserialize <T>(item.Blob) : default(T));
}
private async Task <WelcomeMessage> ReceiveMessage(ITransportHandler transportHandler)
{
return(_byteSerializer.Deserialize <WelcomeMessage>(await transportHandler.ReceiveAllAvailable()));
}