public static void WriteObject(ByteBuffer buffer, object value, bool smallEncoding = true)
{
if (value == null)
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.Null);
}
else
{
Encode encoder;
Decode decoder;
if (TryGetCodec(value.GetType(), out encoder, out decoder))
{
encoder(buffer, value, smallEncoding);
}
else if (value is Described)
{
((Described)value).Encode(buffer);
}
else
{
throw new AmqpException(ErrorCode.NotImplemented,
Fx.Format(SRAmqp.EncodingTypeNotSupported, value.GetType()));
}
}
}
internal static ByteBuffer EncodeCommand(FrameType type, ushort channel, Performative command, int payloadSize)
{
int frameSize = HeaderSize;
if (command != null)
{
frameSize += AmqpCodec.GetSerializableEncodeSize(command);
}
frameSize += payloadSize;
ByteBuffer buffer = new ByteBuffer(frameSize, false, false);
AmqpBitConverter.WriteUInt(buffer, (uint)frameSize);
AmqpBitConverter.WriteUByte(buffer, DefaultDataOffset);
AmqpBitConverter.WriteUByte(buffer, (byte)type);
AmqpBitConverter.WriteUShort(buffer, channel);
if (command != null)
{
AmqpCodec.EncodeSerializable(command, buffer);
}
return(buffer);
}
public void Encode(ByteBuffer buffer)
{
AmqpBitConverter.WriteUInt(buffer, AmqpPrefix);
AmqpBitConverter.WriteUByte(buffer, (byte)this.protocolId);
AmqpBitConverter.WriteUByte(buffer, this.version.Major);
AmqpBitConverter.WriteUByte(buffer, this.version.Minor);
AmqpBitConverter.WriteUByte(buffer, this.version.Revision);
}
static void EncodeFrame(ByteBuffer buffer, FrameType type, ushort channel, DescribedList command)
{
AmqpBitConverter.WriteUInt(buffer, 0u);
AmqpBitConverter.WriteUByte(buffer, DOF);
AmqpBitConverter.WriteUByte(buffer, (byte)type);
AmqpBitConverter.WriteUShort(buffer, channel);
Codec.Encode(command, buffer);
}
public static void Encode(ByteBuffer buffer, FrameType type, ushort channel, DescribedList command)
{
buffer.Append(4);
AmqpBitConverter.WriteUByte(buffer, 2);
AmqpBitConverter.WriteUByte(buffer, (byte)type);
AmqpBitConverter.WriteUShort(buffer, channel);
command.Encode(buffer);
AmqpBitConverter.WriteInt(buffer.Buffer, buffer.Offset, buffer.Length);
}
public override void EncodeObject(object value, bool arrayEncoding, ByteBuffer buffer)
{
if (arrayEncoding)
{
AmqpBitConverter.WriteUByte(buffer, (byte)((bool)value ? 1 : 0));
}
else
{
BooleanEncoding.Encode((bool)value, buffer);
}
}
public override void WriteObject(ByteBuffer buffer, object value)
{
if (value == null)
{
AmqpEncoding.EncodeNull(buffer);
return;
}
AmqpBitConverter.WriteUByte(buffer, 0);
SymbolEncoding.Encode(this.symbol, buffer);
this.encoder.EncodeObject(this.getter((TValue)value), false, buffer);
}
public static void Encode(bool?value, ByteBuffer buffer)
{
if (value.HasValue)
{
AmqpBitConverter.WriteUByte(buffer, value.Value ? (byte)FormatCode.BooleanTrue : (byte)FormatCode.BooleanFalse);
}
else
{
AmqpEncoding.EncodeNull(buffer);
}
}
public static void Encode(ushort?value, ByteBuffer buffer)
{
if (value.HasValue)
{
AmqpBitConverter.WriteUByte(buffer, (byte)FormatCode.UShort);
AmqpBitConverter.WriteUShort(buffer, value.Value);
}
else
{
AmqpEncoding.EncodeNull(buffer);
}
}
public static void WriteBoolean(ByteBuffer buffer, bool value, bool smallEncoding)
{
if (smallEncoding)
{
AmqpBitConverter.WriteUByte(buffer, value ? FormatCode.BooleanTrue : FormatCode.BooleanFalse);
}
else
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.Boolean);
AmqpBitConverter.WriteUByte(buffer, (byte)(value ? 1 : 0));
}
}
public static void Encode(float?value, ByteBuffer buffer)
{
if (value.HasValue)
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.Float);
AmqpBitConverter.WriteFloat(buffer, value.Value);
}
else
{
AmqpEncoding.EncodeNull(buffer);
}
}
public void Encode(ByteBuffer buffer, bool arrayEncoding = false)
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.Described);
if (!string.IsNullOrWhiteSpace(Descriptor.Name) || Descriptor.Code != 0)
{
Encoder.WriteULong(buffer, Descriptor.Code, true);
}
else
{
Encoder.WriteSymbol(buffer, Descriptor.Name, true);
}
EncodeValue(buffer, arrayEncoding);
}
public static void Encode(DescribedType value, ByteBuffer buffer)
{
if (value == null)
{
AmqpEncoding.EncodeNull(buffer);
}
else
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.Described);
AmqpEncoding.EncodeObject(value.Descriptor, buffer);
AmqpEncoding.EncodeObject(value.Value, buffer);
}
}
public static void WriteLong(ByteBuffer buffer, long value, bool smallEncoding)
{
if (smallEncoding && value >= sbyte.MinValue && value <= sbyte.MaxValue)
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.SmallLong);
AmqpBitConverter.WriteByte(buffer, (sbyte)value);
}
else
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.Long);
AmqpBitConverter.WriteLong(buffer, value);
}
}
public static void WriteList(ByteBuffer buffer, IList value, bool smallEncoding)
{
if (value == null)
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.Null);
}
else
{
// trim tailing nulls
int last = value.Count - 1;
while (last >= 0 && value[last] == null)
{
--last;
}
if (last < 0 && smallEncoding)
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.List0);
}
else
{
int pos = buffer.WritePos;
AmqpBitConverter.WriteUByte(buffer, 0);
AmqpBitConverter.WriteUInt(buffer, 0);
AmqpBitConverter.WriteUInt(buffer, 0);
for (int i = 0; i <= last; ++i)
{
Encoder.WriteObject(buffer, value[i], smallEncoding);
}
int size = buffer.WritePos - pos - 9;
int count = last + 1;
if (smallEncoding && size < byte.MaxValue && count <= byte.MaxValue)
{
buffer.Buffer[pos] = FormatCode.List8;
buffer.Buffer[pos + 1] = (byte)(size + 1);
buffer.Buffer[pos + 2] = (byte)count;
Array.Copy(buffer.Buffer, pos + 9, buffer.Buffer, pos + 3, size);
buffer.Shrink(6);
}
else
{
buffer.Buffer[pos] = FormatCode.List32;
AmqpBitConverter.WriteInt(buffer.Buffer, pos + 1, size + 4);
AmqpBitConverter.WriteInt(buffer.Buffer, pos + 5, count);
}
}
}
}
public static void WriteArray(ByteBuffer buffer, Array value)
{
if (value == null)
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.Null);
}
else
{
int count = value.Length;
Fx.Assert(count > 0, "must have at least 1 element in array");
int pos = buffer.WritePos;
AmqpBitConverter.WriteUByte(buffer, 0);
AmqpBitConverter.WriteUInt(buffer, 0);
AmqpBitConverter.WriteUInt(buffer, 0);
for (int i = 0; i < count; ++i)
{
object item = value.GetValue(i);
if (i == 0)
{
Encoder.WriteObject(buffer, item, false);
}
else
{
int lastPos = buffer.WritePos - 1;
byte lastByte = buffer.Buffer[lastPos];
buffer.Shrink(1);
Encoder.WriteObject(buffer, item, false);
buffer.Buffer[lastPos] = lastByte;
}
}
int size = buffer.WritePos - pos - 9;
if (size < byte.MaxValue && count <= byte.MaxValue)
{
buffer.Buffer[pos] = FormatCode.Array8;
buffer.Buffer[pos + 1] = (byte)(size + 1);
buffer.Buffer[pos + 2] = (byte)count;
Array.Copy(buffer.Buffer, pos + 9, buffer.Buffer, pos + 3, size);
buffer.Shrink(6);
}
else
{
buffer.Buffer[pos] = FormatCode.Array32;
AmqpBitConverter.WriteInt(buffer.Buffer, pos + 1, size + 4);
AmqpBitConverter.WriteInt(buffer.Buffer, pos + 5, count);
}
}
}
protected override void EncodeBody(ByteBuffer buffer)
{
int pos = buffer.WritePos;
buffer.Validate(true, 8);
buffer.Append(8);
int length = 0;
long streamPos = this.bodyStream.CanSeek ? this.bodyStream.Position : -1;
try
{
while (true)
{
buffer.Validate(true, 512);
int size = this.bodyStream.Read(buffer.Buffer, buffer.WritePos, 512);
if (size == 0)
{
break;
}
buffer.Append(size);
length += size;
}
}
finally
{
if (this.bodyStream.CanSeek)
{
this.bodyStream.Position = streamPos;
}
}
AmqpBitConverter.WriteUByte(buffer.Buffer, pos, FormatCode.Described);
AmqpBitConverter.WriteUByte(buffer.Buffer, pos + 1, FormatCode.SmallULong);
AmqpBitConverter.WriteUByte(buffer.Buffer, pos + 2, (byte)Data.Code);
AmqpBitConverter.WriteUByte(buffer.Buffer, pos + 3, FormatCode.Binary32);
AmqpBitConverter.WriteUInt(buffer.Buffer, pos + 4, (uint)length);
this.bodyOffset = pos;
this.bodyLength = buffer.WritePos - pos;
this.dataList = new Data[]
{
new Data()
{
Value = new ArraySegment <byte>(buffer.Buffer, pos, length),
Offset = pos,
Length = length
}
};
}
protected override bool WriteFormatCode(ByteBuffer buffer)
{
AmqpBitConverter.WriteUByte(buffer, 0);
if (!this.descriptorCode.HasValue)
{
SymbolEncoding.Encode(this.descriptorName, buffer);
}
else
{
ULongEncoding.Encode(this.descriptorCode, buffer);
}
AmqpBitConverter.WriteUByte(buffer, this.Code);
return(true);
}
public void Encode(ByteBuffer buffer)
{
AmqpBitConverter.WriteUInt(buffer, (uint)this.size);
AmqpBitConverter.WriteUByte(buffer, this.dataOffset);
AmqpBitConverter.WriteUByte(buffer, (byte)this.Type);
AmqpBitConverter.WriteUShort(buffer, this.Channel);
if (this.Command != null)
{
AmqpCodec.EncodeSerializable(this.Command, buffer);
}
this.frameBuffer = buffer.Array;
}
protected override bool WriteFormatCode(ByteBuffer buffer)
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.Described);
if (this.descriptorCode != null)
{
Encoder.WriteULong(buffer, this.descriptorCode.Value, true);
}
else
{
Encoder.WriteSymbol(buffer, this.descriptorName, true);
}
AmqpBitConverter.WriteUByte(buffer, this.Code);
return(true);
}
protected override bool WriteFormatCode(ByteBuffer buffer)
{
AmqpBitConverter.WriteUByte(buffer, (byte)FormatCode.Described);
if (this.descriptorCode != null)
{
ULongEncoding.Encode(this.descriptorCode, buffer);
}
else
{
SymbolEncoding.Encode(this.descriptorName, buffer);
}
AmqpBitConverter.WriteUByte(buffer, this.Code);
return(true);
}
public static void WriteULong(ByteBuffer buffer, ulong value, bool smallEncoding)
{
if (!smallEncoding || value > byte.MaxValue)
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.ULong);
AmqpBitConverter.WriteULong(buffer, value);
}
else if (value == 0)
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.ULong0);
}
else if (value <= byte.MaxValue)
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.SmallULong);
AmqpBitConverter.WriteUByte(buffer, (byte)value);
}
}
internal override void EncodeValue(ByteBuffer buffer)
{
if (this.FieldCount == 0)
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.List0);
}
else
{
int valueSize = this.OnValueSize();
int encodeWidth = AmqpEncoding.GetEncodeWidthByCountAndSize(this.FieldCount, valueSize);
int sizeOffset;
if (encodeWidth == FixedWidth.UByte)
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.List8);
sizeOffset = buffer.Length;
AmqpBitConverter.WriteUByte(buffer, 0);
AmqpBitConverter.WriteUByte(buffer, (byte)this.FieldCount);
}
else
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.List32);
sizeOffset = buffer.Length;
AmqpBitConverter.WriteUInt(buffer, 0);
AmqpBitConverter.WriteUInt(buffer, (uint)this.FieldCount);
}
this.OnEncode(buffer);
// the actual encoded value size may be different from the calculated
// valueSize. However, it can only become smaller. This allows for
// reserving space in the buffer using the longest encoding form of a
// value. For example, if the delivery id of a transfer is unknown, we
// can use uint.Max for calculating encode size, but the actual encoding
// could be small uint.
int size = buffer.Length - sizeOffset - encodeWidth;
if (encodeWidth == FixedWidth.UByte)
{
AmqpBitConverter.WriteUByte(buffer.Buffer, sizeOffset, (byte)size);
}
else
{
AmqpBitConverter.WriteUInt(buffer.Buffer, sizeOffset, (uint)size);
}
}
}
public static void FRM(Stream stream, ulong code, byte type, ushort channel, params object[] value)
{
List list = new List();
if (value != null)
{
list.AddRange(value);
}
ByteBuffer buffer = new ByteBuffer(256, true);
buffer.Append(4);
AmqpBitConverter.WriteUByte(buffer, 2);
AmqpBitConverter.WriteUByte(buffer, type);
AmqpBitConverter.WriteUShort(buffer, channel);
Encoder.WriteObject(buffer, new DescribedValue(code, list));
AmqpBitConverter.WriteInt(buffer.Buffer, 0, buffer.Length);
stream.Write(buffer.Buffer, buffer.Offset, buffer.Length);
}
public static void WriteBinary(ByteBuffer buffer, byte[] value, bool smallEncoding)
{
if (value == null)
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.Null);
}
else if (smallEncoding && value.Length <= byte.MaxValue)
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.Binary8);
AmqpBitConverter.WriteUByte(buffer, (byte)value.Length);
AmqpBitConverter.WriteBytes(buffer, value, 0, value.Length);
}
else
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.Binary32);
AmqpBitConverter.WriteUInt(buffer, (uint)value.Length);
AmqpBitConverter.WriteBytes(buffer, value, 0, value.Length);
}
}
public static void Encode(int?value, ByteBuffer buffer)
{
if (value.HasValue)
{
if (value < sbyte.MinValue || value > sbyte.MaxValue)
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.Int);
AmqpBitConverter.WriteInt(buffer, value.Value);
}
else
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.SmallInt);
AmqpBitConverter.WriteByte(buffer, (sbyte)value.Value);
}
}
else
{
AmqpEncoding.EncodeNull(buffer);
}
}
public static ByteBuffer EncodeCommand(FrameType type, ushort channel, Performative command, int payloadSize)
{
int serializableEncodeSize = 8;
if (command != null)
{
serializableEncodeSize = serializableEncodeSize + AmqpCodec.GetSerializableEncodeSize(command);
}
serializableEncodeSize = serializableEncodeSize + payloadSize;
ByteBuffer byteBuffer = new ByteBuffer(serializableEncodeSize, false, false);
AmqpBitConverter.WriteUInt(byteBuffer, (uint)serializableEncodeSize);
AmqpBitConverter.WriteUByte(byteBuffer, 2);
AmqpBitConverter.WriteUByte(byteBuffer, (byte)type);
AmqpBitConverter.WriteUShort(byteBuffer, channel);
if (command != null)
{
AmqpCodec.EncodeSerializable(command, byteBuffer);
}
return(byteBuffer);
}
protected override void OnWriteObject(ByteBuffer buffer, object graph)
{
if (graph == null)
{
AmqpEncoding.EncodeNull(buffer);
return;
}
AmqpBitConverter.WriteUByte(buffer, (byte)FormatCode.Described);
if (this.descriptorName.Value != null)
{
SymbolEncoding.Encode(this.descriptorName, buffer);
}
else
{
ULongEncoding.Encode(this.descriptorCode, buffer);
}
if (this.members.Length == 0)
{
AmqpBitConverter.WriteUByte(buffer, (byte)FormatCode.List0);
return;
}
AmqpBitConverter.WriteUByte(buffer, (byte)FormatCode.List32);
int endCopy = buffer.End; // remember the current position
AmqpBitConverter.WriteUInt(buffer, 0); // reserve space for list size
AmqpBitConverter.WriteUInt(buffer, (uint)this.members.Length);
for (int i = 0; i < this.members.Length; ++i)
{
object memberValue = this.members[i].Accessor.ReadObject(graph);
this.members[i].Type.OnWriteObject(buffer, memberValue);
}
// write the correct size
AmqpBitConverter.WriteUInt(buffer.Buffer, endCopy, (uint)(buffer.End - endCopy - FixedWidth.UInt));
}
protected override void EncodeValue(ByteBuffer buffer, bool arrayEncoding)
{
int pos = buffer.WriteOffset;
// initial values for ctor, size, length
AmqpBitConverter.WriteUByte(buffer, 0);
AmqpBitConverter.WriteUInt(buffer, 0);
AmqpBitConverter.WriteUInt(buffer, 0);
var propertyCount = GetEncodablePropertyCount(GetType());
int lastNotNullIndex = -1;
int lastNotNullBufferWriteOffset = buffer.WriteOffset;
var thisType = GetType();
for (int i = 0; i < propertyCount; i++)
{
var encoderFunc = GetEncoderDelegate(thisType, i);
var valueWasNull = encoderFunc(this, buffer, arrayEncoding); // returns true if the value == null, false otherwise
if (!valueWasNull || i == 0)
{
lastNotNullIndex = i;
lastNotNullBufferWriteOffset = buffer.WriteOffset;
}
}
// rewind the buffer to just after we wrote the last not-null value
var listLength = lastNotNullIndex + 1;
buffer.AdjustWriteOffset(lastNotNullBufferWriteOffset);
int size = buffer.WriteOffset - pos - 9; // recalculate list size
// set ctor, size, length
buffer.Buffer[pos] = FormatCode.List32;
AmqpBitConverter.WriteInt(buffer.Buffer, pos + 1, size + 4);
AmqpBitConverter.WriteInt(buffer.Buffer, pos + 5, listLength);
}
public static void WriteMap(ByteBuffer buffer, Map value, bool smallEncoding)
{
if (value == null)
{
AmqpBitConverter.WriteUByte(buffer, FormatCode.Null);
}
else
{
int pos = buffer.WritePos;
AmqpBitConverter.WriteUByte(buffer, 0);
AmqpBitConverter.WriteUInt(buffer, 0);
AmqpBitConverter.WriteUInt(buffer, 0);
foreach (var key in value.Keys)
{
Encoder.WriteObject(buffer, key);
Encoder.WriteObject(buffer, value[key]);
}
int size = buffer.WritePos - pos - 9;
int count = value.Count * 2;
if (smallEncoding && size < byte.MaxValue && count <= byte.MaxValue)
{
buffer.Buffer[pos] = FormatCode.Map8;
buffer.Buffer[pos + 1] = (byte)(size + 1);
buffer.Buffer[pos + 2] = (byte)count;
Array.Copy(buffer.Buffer, pos + 9, buffer.Buffer, pos + 3, size);
buffer.Shrink(6);
}
else
{
buffer.Buffer[pos] = FormatCode.Map32;
AmqpBitConverter.WriteInt(buffer.Buffer, pos + 1, size + 4);
AmqpBitConverter.WriteInt(buffer.Buffer, pos + 5, count);
}
}
}
