/// <summary>
/// Called during deserialization to read an object of the specified <paramref name="type"/>
/// from the specified <paramref name="stream"/>.
/// </summary>
/// <param name="type">The type of object to read.</param>
/// <param name="stream">The <see cref="Stream"/> from which to read.</param>
/// <param name="contentHeaders">The <see cref="HttpContentHeaders"/> for the content being written.</param>
/// <param name="formatterLogger">The <see cref="IFormatterLogger"/> to log events to.</param>
/// <returns>A <see cref="Task"/> whose result will be the object instance that has been read.</returns>
public override Task<object> ReadFromStreamAsync(Type type, Stream stream, HttpContentHeaders contentHeaders, IFormatterLogger formatterLogger)
{
if (type == null)
{
throw new ArgumentNullException("type");
}
if (stream == null)
{
throw new ArgumentNullException("stream");
}
return TaskHelpers.RunSynchronously<object>(() =>
{
// If content length is 0 then return default value for this type
if (contentHeaders != null && contentHeaders.ContentLength == 0)
{
return GetDefaultValueForType(type);
}
// Get the character encoding for the content
Encoding effectiveEncoding = SelectCharacterEncoding(contentHeaders);
try
{
if (UseDataContractJsonSerializer)
{
DataContractJsonSerializer dataContractSerializer = GetDataContractSerializer(type);
using (XmlReader reader = JsonReaderWriterFactory.CreateJsonReader(new NonClosingDelegatingStream(stream), effectiveEncoding, _readerQuotas, null))
{
return dataContractSerializer.ReadObject(reader);
}
}
else
{
using (JsonTextReader jsonTextReader = new SecureJsonTextReader(new StreamReader(stream, effectiveEncoding), _maxDepth) { CloseInput = false })
{
JsonSerializer jsonSerializer = JsonSerializer.Create(_jsonSerializerSettings);
if (formatterLogger != null)
{
// Error must always be marked as handled
// Failure to do so can cause the exception to be rethrown at every recursive level and overflow the stack for x64 CLR processes
jsonSerializer.Error += (sender, e) =>
{
Exception exception = e.ErrorContext.Error;
formatterLogger.LogError(e.ErrorContext.Path, exception.Message);
e.ErrorContext.Handled = true;
};
}
return jsonSerializer.Deserialize(jsonTextReader, type);
}
}
}
catch (Exception e)
{
if (formatterLogger == null)
{
throw;
}
formatterLogger.LogError(String.Empty, e.Message);
return GetDefaultValueForType(type);
}
});
}
/// <summary>
/// Called during deserialization to read an object of the specified <paramref name="type"/>
/// from the specified <paramref name="stream"/>.
/// </summary>
/// <param name="type">The type of object to read.</param>
/// <param name="stream">The <see cref="Stream"/> from which to read.</param>
/// <param name="contentHeaders">The <see cref="HttpContentHeaders"/> for the content being written.</param>
/// <param name="formatterLogger">The <see cref="IFormatterLogger"/> to log events to.</param>
/// <returns>A <see cref="Task"/> whose result will be the object instance that has been read.</returns>
public override Task <object> ReadFromStreamAsync(Type type, Stream stream, HttpContentHeaders contentHeaders, IFormatterLogger formatterLogger)
{
if (type == null)
{
throw new ArgumentNullException("type");
}
if (stream == null)
{
throw new ArgumentNullException("stream");
}
return(TaskHelpers.RunSynchronously <object>(() =>
{
// If content length is 0 then return default value for this type
if (contentHeaders != null && contentHeaders.ContentLength == 0)
{
return GetDefaultValueForType(type);
}
// Get the character encoding for the content
Encoding effectiveEncoding = SelectCharacterEncoding(contentHeaders);
try
{
if (UseDataContractJsonSerializer)
{
DataContractJsonSerializer dataContractSerializer = GetDataContractSerializer(type);
using (XmlReader reader = JsonReaderWriterFactory.CreateJsonReader(new NonClosingDelegatingStream(stream), effectiveEncoding, _readerQuotas, null))
{
return dataContractSerializer.ReadObject(reader);
}
}
else
{
using (JsonTextReader jsonTextReader = new SecureJsonTextReader(new StreamReader(stream, effectiveEncoding), _maxDepth)
{
CloseInput = false
})
{
JsonSerializer jsonSerializer = JsonSerializer.Create(_jsonSerializerSettings);
if (formatterLogger != null)
{
// Error must always be marked as handled
// Failure to do so can cause the exception to be rethrown at every recursive level and overflow the stack for x64 CLR processes
jsonSerializer.Error += (sender, e) =>
{
Exception exception = e.ErrorContext.Error;
formatterLogger.LogError(e.ErrorContext.Path, exception.Message);
e.ErrorContext.Handled = true;
};
}
return jsonSerializer.Deserialize(jsonTextReader, type);
}
}
}
catch (Exception e)
{
if (formatterLogger == null)
{
throw;
}
formatterLogger.LogError(String.Empty, e.Message);
return GetDefaultValueForType(type);
}
}));
}
/// <summary>
/// Called during deserialization to read an object of the specified <paramref name="type"/>
/// from the specified <paramref name="stream"/>.
/// </summary>
/// <param name="type">The type of object to read.</param>
/// <param name="stream">The <see cref="Stream"/> from which to read.</param>
/// <param name="contentHeaders">The <see cref="HttpContentHeaders"/> for the content being written.</param>
/// <param name="formatterLogger">The <see cref="IFormatterLogger"/> to log events to.</param>
/// <returns>A <see cref="Task"/> whose result will be the object instance that has been read.</returns>
public override Task <object> ReadFromStreamAsync(Type type, Stream stream, HttpContentHeaders contentHeaders, IFormatterLogger formatterLogger)
{
if (type == null)
{
throw new ArgumentNullException("type");
}
if (stream == null)
{
throw new ArgumentNullException("stream");
}
return(TaskHelpers.RunSynchronously <object>(() =>
{
// If content length is 0 then return default value for this type
if (contentHeaders != null && contentHeaders.ContentLength == 0)
{
return GetDefaultValueForType(type);
}
// Get the character encoding for the content
Encoding effectiveEncoding = SelectCharacterEncoding(contentHeaders);
try
{
if (UseDataContractJsonSerializer)
{
DataContractJsonSerializer dataContractSerializer = GetDataContractSerializer(type);
using (XmlReader reader = JsonReaderWriterFactory.CreateJsonReader(new NonClosingDelegatingStream(stream), effectiveEncoding, _readerQuotas, null))
{
return dataContractSerializer.ReadObject(reader);
}
}
else
{
using (JsonTextReader jsonTextReader = new SecureJsonTextReader(new StreamReader(stream, effectiveEncoding), _maxDepth)
{
CloseInput = false
})
{
JsonSerializer jsonSerializer = JsonSerializer.Create(_jsonSerializerSettings);
if (formatterLogger != null)
{
jsonSerializer.Error += (sender, e) =>
{
Exception exception = e.ErrorContext.Error;
// reader quota exceptions are fatal and cannot be recovered from
// we need to shortcircuit any further deserialization
if (exception is JsonReaderQuotaException)
{
e.ErrorContext.Handled = false;
}
else
{
formatterLogger.LogError(e.ErrorContext.Path, exception.Message);
e.ErrorContext.Handled = true;
}
};
}
return jsonSerializer.Deserialize(jsonTextReader, type);
}
}
}
catch (Exception e)
{
if (formatterLogger == null)
{
throw;
}
formatterLogger.LogError(String.Empty, e.Message);
return GetDefaultValueForType(type);
}
}));
}
/// <summary>
/// Called during deserialization to read an object of the specified <paramref name="type"/>
/// from the specified <paramref name="stream"/>.
/// </summary>
/// <param name="type">The type of object to read.</param>
/// <param name="stream">The <see cref="Stream"/> from which to read.</param>
/// <param name="contentHeaders">The <see cref="HttpContentHeaders"/> for the content being written.</param>
/// <param name="formatterLogger">The <see cref="IFormatterLogger"/> to log events to.</param>
/// <returns>A <see cref="Task"/> whose result will be the object instance that has been read.</returns>
public override Task<object> ReadFromStreamAsync(Type type, Stream stream, HttpContentHeaders contentHeaders, IFormatterLogger formatterLogger)
{
if (type == null)
{
throw new ArgumentNullException("type");
}
if (stream == null)
{
throw new ArgumentNullException("stream");
}
return TaskHelpers.RunSynchronously<object>(() =>
{
// If content length is 0 then return default value for this type
if (contentHeaders != null && contentHeaders.ContentLength == 0)
{
return GetDefaultValueForType(type);
}
// Get the character encoding for the content
Encoding effectiveEncoding = SelectCharacterEncoding(contentHeaders);
try
{
if (UseDataContractJsonSerializer)
{
DataContractJsonSerializer dataContractSerializer = GetDataContractSerializer(type);
using (XmlReader reader = JsonReaderWriterFactory.CreateJsonReader(new NonClosingDelegatingStream(stream), effectiveEncoding, _readerQuotas, null))
{
return dataContractSerializer.ReadObject(reader);
}
}
else
{
using (JsonTextReader jsonTextReader = new SecureJsonTextReader(new StreamReader(stream, effectiveEncoding), _maxDepth) { CloseInput = false })
{
JsonSerializer jsonSerializer = JsonSerializer.Create(_jsonSerializerSettings);
if (formatterLogger != null)
{
jsonSerializer.Error += (sender, e) =>
{
Exception exception = e.ErrorContext.Error;
// reader quota exceptions are fatal and cannot be recovered from
// we need to shortcircuit any further deserialization
if (exception is JsonReaderQuotaException)
{
e.ErrorContext.Handled = false;
}
else
{
formatterLogger.LogError(e.ErrorContext.Path, exception.Message);
e.ErrorContext.Handled = true;
}
};
}
return jsonSerializer.Deserialize(jsonTextReader, type);
}
}
}
catch (Exception e)
{
if (formatterLogger == null)
{
throw;
}
formatterLogger.LogError(String.Empty, e.Message);
return GetDefaultValueForType(type);
}
});
}
