// Returns Success
public async Task <bool> DecompressAsync(IMessage message)
{
var metadata = message.GetMetadata();
if (metadata.Encrypted)
{
return(false);
} // Don't decompress before decryption.
if (metadata.Compressed)
{
try
{
message.Body = (await CompressionProvider.DecompressAsync(message.Body).ConfigureAwait(false)).ToArray();
metadata.Compressed = false;
metadata.CustomFields[Constants.HeaderForCompressed] = false;
if (metadata.CustomFields.ContainsKey(Constants.HeaderForCompression))
{
metadata.CustomFields.Remove(Constants.HeaderForCompression);
}
}
catch { return(false); }
}
return(true);
}
// Returns Success
public async Task <bool> DecompressAsync(Letter letter)
{
if (letter.LetterMetadata.Encrypted)
{
return(false);
} // Don't decompress before decryption.
if (letter.LetterMetadata.Compressed)
{
try
{
letter.Body = await CompressionProvider.DecompressAsync(letter.Body).ConfigureAwait(false);
letter.LetterMetadata.Compressed = false;
letter.LetterMetadata.CustomFields[Constants.HeaderForCompressed] = false;
if (letter.LetterMetadata.CustomFields.ContainsKey(Constants.HeaderForCompression))
{
letter.LetterMetadata.CustomFields.Remove(Constants.HeaderForCompression);
}
}
catch { return(false); }
}
return(true);
}
public void Compress_ObjectsWithDifferentContent_HaveDifferentResultBytes()
{
var subject1 = (string)new Word();
var subject2 = (string)new Word();
var provider = new CompressionProvider();
var result1 = provider.Compress(subject1);
var result2 = provider.Compress(subject2);
CollectionAssert.AreNotEquivalent(result1, result2);
}
protected object DeserializeReplyInternal(Message message, object[] parameters)
{
var retParamInfo = ParameterTypes.FirstOrDefault(x => x.ParamType == ParamType.Return);
if (retParamInfo == null)
{
return(null);
}
var store = ObjectBuilder.GetModelStore();
var serializer = ObjectBuilder.GetSerializer();
var reader = message.GetReaderAtBodyContents();
reader.Read();
var model = store.GetModel(retParamInfo.Type, ModeType.Wcf);
if (model == null)
{
throw new InvalidOperationException("The model cannot be null, meta data fetch failed. Type: " + retParamInfo.Type.FullName);
}
reader.Read();
var val = reader.Value;
var data = BinaryConverter.FromString(val);
var compressionType = GetMessageCompressionTypeOptions(message);
if (compressionType != CompressionTypeOptions.None)
{
var compressionProvider = new CompressionProvider();
data = compressionProvider.DeCompress(data, compressionType);
}
object retVal;
try
{
retVal = serializer.Deserialize(data, model.MetaData, retParamInfo.Type, ModeType.Wcf);
}
catch (SerializationException)
{
store.RemoveModel(retParamInfo.Type, ModeType.Wcf);
throw;
}
return(retVal);
}
public void Compress_CompressedContentSize_IsLessThanOriginal()
{
var subject = string.Join(
" ",
Enumerable.Range(0, 5).Select(_ => new Paragraph(Tongue.Babylonian))
);
var provider = new CompressionProvider();
var result = provider.Compress(subject);
Assert.Less(result.Length, subject.Length);
}
protected void DeserializeRequestInternal(Message message, object[] parameters)
{
var provider = ObjectBuilder.GetModelProvider();
var serializer = ObjectBuilder.GetSerializer();
var compressionType = GetMessageCompressionTypeOptions(message);
CompressionProvider compressionProvider = null;
if (compressionType != CompressionTypeOptions.None)
{
compressionProvider = new CompressionProvider();
}
var reader = message.GetReaderAtBodyContents();
reader.Read();
for (var i = 0; i < parameters.Length; i++)
{
var model = provider.CreateModelInfo(ParameterTypes[i].Type, ModeType.Wcf);
reader.Read();
var val = reader.Value;
var data = BinaryConverter.FromString(val);
if (compressionProvider != null)
{
data = compressionProvider.DeCompress(data, compressionType);
}
object retVal;
try
{
retVal = serializer.Deserialize(data, model.MetaData, ParameterTypes[i].Type, ModeType.Wcf);
}
catch (SerializationException)
{
throw FaultException.CreateFault(
MessageFault.CreateFault(
new FaultCode(Constants.SerializationFaultCode.ToString(CultureInfo.InvariantCulture)),
"Serialization failed, meta data removal is recommended."));
}
parameters[i] = retVal;
}
}
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);
}
public void CompressDecompress_ResultingAndOriginalObject_AreEquivalent()
{
var subject = new
{
String = "√abcdef€z$*%´´ràéµ£",
List = new[]
{
123, 456
},
Object = new { Value = 123 }
}.ToJson();
var provider = new CompressionProvider();
var result = provider.Decompress(provider.Compress(subject));
Assert.AreEqual(subject, result);
}
// Returns Success
public async Task <bool> CompressAsync(Letter letter)
{
if (letter.LetterMetadata.Encrypted)
{
return(false);
} // Don't compress after encryption.
if (!letter.LetterMetadata.Compressed)
{
letter.Body = await CompressionProvider.CompressAsync(letter.Body).ConfigureAwait(false);
letter.LetterMetadata.Compressed = true;
letter.LetterMetadata.CustomFields[Constants.HeaderForCompressed] = true;
letter.LetterMetadata.CustomFields[Constants.HeaderForCompression] = CompressionProvider.Type;
return(true);
}
return(true);
}
// Returns Success
public async Task <bool> CompressAsync(IMessage message)
{
var metadata = message.GetMetadata();
if (metadata.Encrypted)
{
return(false);
} // Don't compress after encryption.
if (!metadata.Compressed)
{
message.Body = (await CompressionProvider.CompressAsync(message.Body).ConfigureAwait(false)).ToArray();
metadata.Compressed = true;
metadata.CustomFields[Constants.HeaderForCompressed] = true;
metadata.CustomFields[Constants.HeaderForCompression] = CompressionProvider.Type;
return(true);
}
return(true);
}
protected Message SerializeRequestInternal(MessageVersion messageVersion, object[] parameters)
{
var compressionType = DefaultCompressionType;
var parameterTypes = ParameterTypes;
Func <string[]> valueGetter = () =>
{
var store = ObjectBuilder.GetModelStore();
CompressionProvider compressionProvider = null;
if (compressionType != CompressionTypeOptions.None)
{
compressionProvider = new CompressionProvider();
}
var serializer = ObjectBuilder.GetSerializer();
var retVal = new string[parameters.Length];
for (var i = 0; i < parameters.Length; i++)
{
var param = parameters[i];
var model = store.GetModel(parameterTypes[i].Type, ModeType.Wcf);
if (model == null)
{
throw new InvalidOperationException("The model cannot be null, meta data fetch failed. Type: " + parameterTypes[i].Type.FullName);
}
SerializationResult data;
try
{
data = serializer.Serialize(param, model.MetaData, ModeType.Wcf) ??
new SerializationResult(new byte[0], null);
}
catch (SerializationException)
{
if (param != null)
{
store.RemoveModel(param.GetType(), ModeType.Wcf);
}
throw;
}
var byteData = data.Data;
if (compressionProvider != null)
{
byteData = compressionProvider.Compress(byteData, compressionType);
}
retVal[i] = BinaryConverter.ToString(byteData);
}
return(retVal);
};
var message = Message.CreateMessage(messageVersion, ContractInfo.Action,
new ProtoBodyWriter(ContractInfo.OperationContractName,
ContractInfo.ServiceNamespace,
valueGetter));
if (compressionType != CompressionTypeOptions.None)
{
AddCompressionHeader(message, DefaultCompressionType);
}
return(message);
}