private static void SkipBinaryBuffer(ByteBuffer buffer)
{
var binaryFormatCode = AmqpCodec.DecodeFormatCode(buffer);
int size = 0;
if (binaryFormatCode == FormatCode.Binary8)
{
size = AmqpBitConverter.ReadUByte(buffer);
}
else if (binaryFormatCode == FormatCode.Binary32)
{
size = (int)AmqpBitConverter.ReadUInt(buffer);
}
buffer.CompleteRead(size);
}
private static void SkipDescribedList(ByteBuffer buffer)
{
// read the list length and move forward
var listFormatCode = AmqpCodec.DecodeFormatCode(buffer);
int size = 0;
if (listFormatCode == FormatCode.List0)
{
size = 0;
}
else if (listFormatCode == FormatCode.List8)
{
size = AmqpBitConverter.ReadUByte(buffer);
}
else if (listFormatCode == FormatCode.List32)
{
size = (int)AmqpBitConverter.ReadUInt(buffer);
}
buffer.CompleteRead(size);
}
protected override void DecodeValue(ByteBuffer buffer)
{
map = Encoder.ReadMap(buffer, AmqpCodec.DecodeFormatCode(buffer));
}
public static BrokeredMessage Decode(ByteBuffer buffer)
{
var message = new BrokeredMessage();
while (buffer.LengthAvailableToRead > 0)
{
int offOfDescribedList = buffer.ReadOffset;
// peak at the type of the described list
var formatCode = AmqpCodec.DecodeFormatCode(buffer);
if (formatCode != FormatCode.Described)
{
throw new AmqpException(ErrorCode.FramingError, $"Expected Format Code = {FormatCode.Described.ToHex()} but was {formatCode.ToHex()}");
}
var descriptor = AmqpCodec.DecodeDescriptor(buffer);
if (descriptor == DescribedTypeCodec.Header)
{
message.Header = (Header)AmqpCodec.DecodeKnownDescribedType(buffer, descriptor);
continue;
}
if (descriptor == DescribedTypeCodec.DeliveryAnnotations)
{
message.DeliveryAnnotations = (DeliveryAnnotations)AmqpCodec.DecodeKnownDescribedType(buffer, descriptor);
continue;
}
if (descriptor == DescribedTypeCodec.MessageAnnotations)
{
message.MessageAnnotations = (MessageAnnotations)AmqpCodec.DecodeKnownDescribedType(buffer, descriptor);
continue;
}
if (descriptor == DescribedTypeCodec.Footer)
{
message.Footer = (Footer)AmqpCodec.DecodeKnownDescribedType(buffer, descriptor);
continue;
}
if (descriptor == DescribedTypeCodec.Properties)
{
message.Properties = (Properties)AmqpCodec.DecodeKnownDescribedType(buffer, descriptor);
continue;
}
if (descriptor == DescribedTypeCodec.ApplicationProperties)
{
message.ApplicationProperties = (ApplicationProperties)AmqpCodec.DecodeKnownDescribedType(buffer, descriptor);
continue;
}
if (descriptor == DescribedTypeCodec.Data)
{
throw new NotImplementedException("TODO: Decode Described amqp:data:binary");
// continue;
}
if (descriptor == DescribedTypeCodec.AmqpValue)
{
throw new NotImplementedException("TODO: Decode Described amqp:amqp-value:*");
// continue;
}
if (descriptor == DescribedTypeCodec.AmqpSequence)
{
throw new NotImplementedException("TODO: Decode Described amqp:amqp-sequence:list");
//continue;
}
}
return(message);
}
public static AnnotatedMessage Decode(ByteBuffer buffer)
{
var message = new AnnotatedMessage();
int bareMessageStartOffset = -1;
int bareMessageEndOffset = -1;
while (buffer.LengthAvailableToRead > 0)
{
int offOfDescribedList = buffer.ReadOffset;
// peak at the type of the described list
var formatCode = AmqpCodec.DecodeFormatCode(buffer);
if (formatCode != FormatCode.Described)
{
throw new AmqpException(ErrorCode.FramingError, $"Expected Format Code = {FormatCode.Described.ToHex()} but was {formatCode.ToHex()}");
}
var descriptor = AmqpCodec.DecodeDescriptor(buffer);
if (descriptor == DescribedTypeCodec.Header)
{
message.Header = (Header)AmqpCodec.DecodeKnownDescribedType(buffer, descriptor);
continue;
}
if (descriptor == DescribedTypeCodec.DeliveryAnnotations)
{
message.DeliveryAnnotations = (DeliveryAnnotations)AmqpCodec.DecodeKnownDescribedType(buffer, descriptor);
continue;
}
if (descriptor == DescribedTypeCodec.MessageAnnotations)
{
message.MessageAnnotations = (MessageAnnotations)AmqpCodec.DecodeKnownDescribedType(buffer, descriptor);
continue;
}
if (descriptor == DescribedTypeCodec.Footer)
{
message.Footer = (Footer)AmqpCodec.DecodeKnownDescribedType(buffer, descriptor);
continue;
}
if (descriptor == DescribedTypeCodec.Properties)
{
if (bareMessageStartOffset < 0)
{
bareMessageStartOffset = offOfDescribedList; // the first described list in the bare message
}
SkipDescribedList(buffer);
bareMessageEndOffset = buffer.ReadOffset;
continue;
}
if (descriptor == DescribedTypeCodec.ApplicationProperties)
{
if (bareMessageStartOffset < 0)
{
bareMessageStartOffset = offOfDescribedList; // the first described list in the bare message
}
SkipDescribedList(buffer);
bareMessageEndOffset = buffer.ReadOffset;
continue;
}
if (descriptor == DescribedTypeCodec.Data)
{
if (bareMessageStartOffset < 0)
{
bareMessageStartOffset = offOfDescribedList; // the first described list in the bare message
}
SkipBinaryBuffer(buffer);
bareMessageEndOffset = buffer.ReadOffset;
continue;
}
if (descriptor == DescribedTypeCodec.AmqpValue)
{
if (bareMessageStartOffset < 0)
{
bareMessageStartOffset = offOfDescribedList; // the first described list in the bare message
}
throw new NotImplementedException();
//continue;
}
if (descriptor == DescribedTypeCodec.AmqpSequence)
{
if (bareMessageStartOffset < 0)
{
bareMessageStartOffset = offOfDescribedList; // the first described list in the bare message
}
throw new NotImplementedException();
//continue;
}
}
if (bareMessageStartOffset > -1)
{
message.BareMessage = new byte[bareMessageEndOffset - bareMessageStartOffset];
Array.Copy(buffer.Buffer, bareMessageStartOffset, message.BareMessage, 0, message.BareMessage.Length);
}
return(message);
}