protected Message SerializeReplyInternal(MessageVersion messageVersion, object[] parameters, object result) { var retParamInfo = ParameterTypes.FirstOrDefault(x => x.ParamType == ParamType.Return); //if (retParamInfo == null) // throw new InvalidOperationException("The return parameter type was not found."); var compressionType = DefaultCompressionType; Func<string[]> valueGetter = () => { if (retParamInfo == null) return new string[0]; var modelProvider = ObjectBuilder.GetModelProvider(); var model = modelProvider.CreateModelInfo(retParamInfo.Type, ModeType.Wcf); var serializer = ObjectBuilder.GetSerializer(); var data = (serializer.Serialize(result, model.MetaData, ModeType.Wcf) ?? new SerializationResult(new byte[0], null)).Data; if (compressionType != CompressionTypeOptions.None) { var compressionProvider = new CompressionProvider(); data = compressionProvider.Compress(data, compressionType); } var value = BinaryConverter.ToString(data); return new[] { value }; }; var message = Message.CreateMessage(messageVersion, ContractInfo.Action + "Response", new ProtoBodyWriter(ContractInfo.OperationContractName, ContractInfo.ServiceNamespace, valueGetter)); if (compressionType != CompressionTypeOptions.None) { AddCompressionHeader(message, DefaultCompressionType); } return message; }