/// <summary>
/// The serialization strategy tries to serialize the type with the first serializer and if
/// it fails it uses the next one.
/// </summary>
/// <param name="option"></param>
/// <returns></returns>
private static IServiceSerializer CreateSerializationStrategy(SerializationOption option)
{
IServiceSerializer serviceSerializer = null;
switch (option)
{
case SerializationOption.JsonSerializer:
serviceSerializer = new JsonSerializer()
{
Next = new BinarySerializer()
};
break;
case SerializationOption.BinarySerializer:
serviceSerializer = new BinarySerializer()
{
Next = new JsonSerializer()
};
break;
case SerializationOption.XmlSerializer:
serviceSerializer = new XmlSerializer()
{
Next = new JsonSerializer()
};
break;
}
Log.Write("CreateSerializationStrategy - SerializationOption is valid : {0}", option);
return(serviceSerializer);
}
public Tuple <Type, byte[]> Grab <T>(T item)
{
Type @type = item.GetType();
byte[] byteStream = { };
Type serializedType = @type;
if (@type.IsNestedPrivate && @type.Name.Contains("Iterator") &&
@type.FullName.Contains("System.Linq.Enumerable") && item is IEnumerable)
{
MethodInfo toList = typeof(Enumerable).GetMethod("ToList");
Type baseType = item.GetType().BaseType;
if (baseType == null)
{
return(new Tuple <Type, byte[]>(serializedType, byteStream));
}
MethodInfo constructedToList = toList.MakeGenericMethod(baseType.GetGenericArguments()[0]);
object castList = constructedToList.Invoke(null, new object[] { item });
serializedType = castList.GetType();
IServiceSerializer serviceSerializer = FactorySerializer.CreateServiceSerializer(serializedType);
byteStream = serviceSerializer.Serialize(castList);
}
else
{
IServiceSerializer serviceSerializer = FactorySerializer.CreateServiceSerializer(serializedType);
byteStream = serviceSerializer.Serialize(item);
}
return(new Tuple <Type, byte[]>(serializedType, byteStream));
}
/// <summary>
///
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="item">The object to serialize</param>
/// <param name="truckId">the unique id used to save the serialize item to disk</param>
/// <param name="serializationOption"> the proposed serialization strategy</param>
/// <returns>Returns the actual serialization strategy used to serialize the <paramref name="item"/> </returns>
public static SerializationOption?SendCargo <T>(T item, string truckId, SerializationOption serializationOption)
{
byte[] byteStream = null;
Try:
IServiceSerializer serializer = CreateSerializationStrategy(serializationOption);
Log.Write($"SendCargo - Type {typeof(T).FullName} - Serialization strategy: {serializer}");
do
{
try
{
byteStream = serializer.Serialize(item);
}
catch (ThreadAbortException tae)
{
Thread.ResetAbort();
Log.Write(tae, "SendCargo - Thread Exception.");
goto Try;
}
catch (Exception e)
{
Log.Write(e, "SendCargo - Error During serializing cargo");
serializer = serializer.Next;
}
}while (byteStream == null || byteStream.Length == 0 && serializer != null);
if (byteStream.Length > 0)
{
string filePath = Path.Combine(Path.GetTempPath(), truckId);
File.WriteAllBytes(filePath, byteStream);
if (serializer == null)
{
return(null);
}
SerializationOption successfulSerialization = (SerializationOption)Enum.Parse(typeof(SerializationOption), serializer.ToString());
Log.Write($"SendCargo - Cargo Sent - Byte sent: {byteStream.Length} - File Created: {filePath} - Serialization Used: {successfulSerialization}");
return(successfulSerialization);
}
Log.Write($"SendCargo - It was not possible to serialize at all the type {typeof(T).FullName}");
return(null);
}
/// <summary>
///
/// </summary>
/// <typeparam name="T"></typeparam>
/// <returns></returns>
public static T ReceiveCargo <T>(string truckId, SerializationOption serializationOption)
{
Log.Write("ReceiveCargo - Receiving Cargo of Type {0}", typeof(T).FullName);
try
{
byte[] byteStream = File.ReadAllBytes(Path.Combine(FileSystemFactory.FileSystem.Path.GetTempPath(), truckId));
IServiceSerializer serviceSerializer = CreateDeserializationStrategy(serializationOption);
return(serviceSerializer != null?serviceSerializer.Deserialize <T>(byteStream) : default(T));
}
catch (Exception e)
{
Log.Write(e, $"ReceiveCargo - Error while deserializing type {typeof(T).FullName}");
throw;
}
}
public static object ReceiveCargo(string truckId, SerializationOption serializationOption, Type type)
{
Log.Write("ReceiveCargo - UnLoading Cargo for Typeless object");
try
{
byte[] byteStream = File.ReadAllBytes(Path.Combine(FileSystemFactory.FileSystem.Path.GetTempPath(), truckId));
IServiceSerializer serviceSerializer = CreateDeserializationStrategy(serializationOption);
return(serviceSerializer?.Deserialize(byteStream, type));
}
catch (Exception e)
{
Log.Write(e, "ReceiveCargo - Error while deserializing");
throw;
}
}
public object Release(byte[] item, Type type)
{
IServiceSerializer serviceSerializer = FactorySerializer.CreateServiceSerializer(type);
return(serviceSerializer.Deserialize(item, type));
}
public T Release <T>(byte[] item)
{
IServiceSerializer serviceSerializer = FactorySerializer.CreateServiceSerializer(typeof(T));
return(serviceSerializer.Deserialize <T>(item));
}
public async Task <Resp> Call <Req, Resp>(string uri, Req request, int timeoutInMs, IServiceSerializer serializer)
{
using (var client = new HttpClient())
{
logger.Debug($"http request : {JsonConvert.SerializeObject(request, Formatting.None)}");
var sw = new Stopwatch();
sw.Start();
// 设置超时时间
var timeout = GetTimeout(timeoutInMs);
logger.Debug($"Http client : {uri}, timeout : {timeout}");
client.Timeout = new TimeSpan(0, 0, 0, timeout);
ByteArrayContent content = new ByteArrayContent(serializer.Serialize <Req>(request));
var response = await client.PostAsync(uri, content);
if (response.StatusCode != HttpStatusCode.OK)
{
throw new FrameworkException(ErrorCode.InvalidHttpResponse,
$"Access {uri} failed, responsed code : {response.StatusCode}");
}
var buffer = await response.Content.ReadAsByteArrayAsync();
var resp = serializer.Deserialize <Resp>(buffer);
logger.Debug($"Total elapsed : {sw.Elapsed.TotalSeconds.ToString("0.000")}s, " +
$"response : {Environment.NewLine}{JsonConvert.SerializeObject(resp, Formatting.None)}");
return(resp);
}
}
public BinaryGrapple(IServiceSerializer serviceSerializer)
{
_serviceSerializer = serviceSerializer;
}
