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using Google.Protobuf;
using Newtonsoft.Json;
using Newtonsoft.Json.Bson;
using ProtoBuf;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.PMR;
using Tango.PMR.Common;
using Tango.PMR.Integration;
namespace Tango.Transport
{
public static class GenericMessageSerializer
{
public enum GenericMessageSerializerMode
{
Json,
Bson,
Protobuf
}
public static GenericMessageSerializerMode Mode { get; set; }
static GenericMessageSerializer()
{
Mode = GenericMessageSerializerMode.Bson;
ProtoBuf.Meta.RuntimeTypeModel.Default.AutoAddMissingTypes = true;
ProtoBuf.Meta.RuntimeTypeModel.Default.AutoAddProtoContractTypesOnly = false;
ProtoBuf.Meta.RuntimeTypeModel.Default.InferTagFromNameDefault = true;
ProtoBuf.Meta.RuntimeTypeModel.Default.UseImplicitZeroDefaults = true;
}
public static object Deserialize(Type type, byte[] array)
{
if (Mode == GenericMessageSerializerMode.Json)
{
return JsonConvert.DeserializeObject(Encoding.UTF8.GetString(array), type);
}
else if (Mode == GenericMessageSerializerMode.Bson)
{
return DeserializeFromBson(array, type);
}
else
{
AutoProtobuf.Build(type);
using (MemoryStream ms = new MemoryStream(array))
{
return Serializer.Deserialize(type, ms);
}
}
}
public static object DeserializeFromByteString(Type type, ByteString byteString)
{
if (Mode == GenericMessageSerializerMode.Json)
{
return JsonConvert.DeserializeObject(byteString.ToStringUtf8(), type);
}
else if (Mode == GenericMessageSerializerMode.Bson)
{
return DeserializeFromBson(byteString.ToByteArray(), type);
}
else
{
AutoProtobuf.Build(type);
return Deserialize(type, byteString.ToByteArray());
}
}
//---------------------------------------------------------------------
public static byte[] Serialize<T>(T message)
{
if (Mode == GenericMessageSerializerMode.Json)
{
return Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(message));
}
else if (Mode == GenericMessageSerializerMode.Bson)
{
return SerializeToBson(message);
}
else
{
AutoProtobuf.Build<T>();
using (MemoryStream ms = new MemoryStream())
{
Serializer.Serialize<T>(ms, message);
return ms.ToArray();
}
}
}
public static T Deserialize<T>(byte[] array)
{
if (Mode == GenericMessageSerializerMode.Json)
{
return (T)Deserialize(typeof(T), array);
}
else if (Mode == GenericMessageSerializerMode.Bson)
{
return DeserializeFromBson<T>(array);
}
else
{
AutoProtobuf.Build<T>();
using (MemoryStream ms = new MemoryStream(array))
{
return Serializer.Deserialize<T>(ms);
}
}
}
public static ByteString SerializeToByteString<T>(T message)
{
if (Mode == GenericMessageSerializerMode.Json)
{
var byteString = ByteString.CopyFromUtf8(JsonConvert.SerializeObject(message));
return byteString;
}
else if (Mode == GenericMessageSerializerMode.Bson)
{
var byteString = ByteString.CopyFrom(SerializeToBson(message));
return byteString;
}
else
{
AutoProtobuf.Build<T>();
return ByteString.CopyFrom(Serialize<T>(message));
}
}
public static T DeserializeFromByteString<T>(ByteString byteString)
{
if (Mode == GenericMessageSerializerMode.Json)
{
return JsonConvert.DeserializeObject<T>(byteString.ToStringUtf8());
}
else if (Mode == GenericMessageSerializerMode.Bson)
{
return DeserializeFromBson<T>(byteString.ToByteArray());
}
else
{
AutoProtobuf.Build<T>();
return Deserialize<T>(byteString.ToByteArray());
}
}
public static T ExtractGenericRequestFromContainer<T>(MessageContainer container) where T : class
{
var message = MessageFactory.ExtractMessageFromContainer(container);
var genericType = Type.GetType((message as GenericRequest).Type);
var innerMessage = DeserializeFromByteString(genericType, (message as GenericRequest).Data);
return innerMessage as T;
}
private static byte[] SerializeToBson(Object obj)
{
MemoryStream ms = new MemoryStream();
using (BsonWriter writer = new BsonWriter(ms))
{
JsonSerializer serializer = new JsonSerializer();
serializer.Serialize(writer, obj);
return ms.ToArray();
}
}
private static Object DeserializeFromBson(byte[] data, Type type)
{
MemoryStream ms = new MemoryStream(data);
using (BsonReader reader = new BsonReader(ms))
{
JsonSerializer serializer = new JsonSerializer();
Object obj = serializer.Deserialize(reader, type);
return obj;
}
}
private static T DeserializeFromBson<T>(byte[] data)
{
MemoryStream ms = new MemoryStream(data);
using (BsonReader reader = new BsonReader(ms))
{
JsonSerializer serializer = new JsonSerializer();
T obj = serializer.Deserialize<T>(reader);
return obj;
}
}
}
}
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