public virtual void test_isSwitchOn()
{
for (int i = 0; i < 7; ++i)
{
Assert.True(ProtocolSwitch.isOn(i, 1 << i));
}
Assert.True(ProtocolSwitch.isOn(0, 1));
Assert.True(ProtocolSwitch.isOn(1, 2));
Assert.True(ProtocolSwitch.isOn(2, 4));
Assert.True(ProtocolSwitch.isOn(3, 8));
Assert.True(ProtocolSwitch.isOn(0, 3));
Assert.True(ProtocolSwitch.isOn(1, 3));
Assert.False(ProtocolSwitch.isOn(2, 3));
Assert.True(ProtocolSwitch.isOn(6, 64));
Assert.False(ProtocolSwitch.isOn(0, 64));
Assert.True(ProtocolSwitch.isOn(0, 127));
Assert.True(ProtocolSwitch.isOn(1, 127));
Assert.False(ProtocolSwitch.isOn(7, 127));
Assert.True(ProtocolSwitch.isOn(0, 255));
Assert.True(ProtocolSwitch.isOn(1, 255));
Assert.True(ProtocolSwitch.isOn(7, 255));
try
{
ProtocolSwitch.isOn(7, 511);
Assert.Null("Should not reach here!");
}
catch (System.ArgumentOutOfRangeException)
{
}
}
public virtual void test_createUsingIndex()
{
for (int i = 0; i < 7; ++i)
{
Assert.True(ProtocolSwitch.create(new int[] { i }).isOn(i));
}
int size = 7;
int[] a = new int[size];
for (int i = 0; i < size; ++i)
{
a[i] = i;
}
ProtocolSwitch status = ProtocolSwitch.create(a);
for (int i = 0; i < size; ++i)
{
Assert.True(status.isOn(i));
}
}
/// <seealso cref= CommandDecoder#decode(IChannelHandlerContext, IByteBuffer, List<object>) </seealso>
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: @Override public void decode(io.netty.channel.IChannelHandlerContext ctx, io.netty.buffer.IByteBuffer in, java.util.List<object><Object> out) throws Exception
public virtual void decode(IChannelHandlerContext ctx, IByteBuffer @in, List <object> @out)
{
// the less length between response header and request header
if (@in.ReadableBytes >= lessLen)
{
@in.MarkReaderIndex();
byte protocol = @in.ReadByte();
@in.ResetReaderIndex();
if (protocol == RpcProtocolV2.PROTOCOL_CODE)
{
/*
* ver: version for protocol
* type: request/response/request oneway
* cmdcode: code for remoting command
* ver2:version for remoting command
* requestId: id of request
* codec: code for codec
* switch: function switch
* (req)timeout: request timeout
* (resp)respStatus: response status
* classLen: length of request or response class name
* headerLen: length of header
* contentLen: length of content
* className
* header
* content
*/
if (@in.ReadableBytes > 2 + 1)
{
int startIndex = @in.ReaderIndex;
@in.MarkReaderIndex();
@in.ReadByte(); //protocol code
byte version = @in.ReadByte(); //protocol version
byte type = @in.ReadByte(); //type
if (type == RpcCommandType.REQUEST || type == RpcCommandType.REQUEST_ONEWAY)
{
//decode request
if (@in.ReadableBytes >= RpcProtocolV2.RequestHeaderLength - 3)
{
short cmdCode = @in.ReadShort();
byte ver2 = @in.ReadByte();
int requestId = @in.ReadInt();
byte serializer = @in.ReadByte();
byte protocolSwitchValue = @in.ReadByte();
int timeout = @in.ReadInt();
short classLen = @in.ReadShort();
short headerLen = @in.ReadShort();
int contentLen = @in.ReadInt();
byte[] clazz = null;
byte[] header = null;
byte[] content = null;
// decide the at-least bytes length for each version
int lengthAtLeastForV1 = classLen + headerLen + contentLen;
bool crcSwitchOn = ProtocolSwitch.isOn(ProtocolSwitch.CRC_SWITCH_INDEX, protocolSwitchValue);
int lengthAtLeastForV2 = classLen + headerLen + contentLen;
if (crcSwitchOn)
{
lengthAtLeastForV2 += 4; // crc int
}
// continue read
if ((version == RpcProtocolV2.PROTOCOL_VERSION_1 && @in.ReadableBytes >= lengthAtLeastForV1) || (version == RpcProtocolV2.PROTOCOL_VERSION_2 && @in.ReadableBytes >= lengthAtLeastForV2))
{
if (classLen > 0)
{
clazz = new byte[classLen];
@in.ReadBytes(clazz);
}
if (headerLen > 0)
{
header = new byte[headerLen];
@in.ReadBytes(header);
}
if (contentLen > 0)
{
content = new byte[contentLen];
@in.ReadBytes(content);
}
if (version == RpcProtocolV2.PROTOCOL_VERSION_2 && crcSwitchOn)
{
checkCRC(@in, startIndex);
}
}
else
{ // not enough data
@in.ResetReaderIndex();
return;
}
RequestCommand command;
if (cmdCode == CommandCode_Fields.HEARTBEAT_VALUE)
{
command = new HeartbeatCommand();
}
else
{
command = createRequestCommand(cmdCode);
}
command.Type = type;
command.Version = ver2;
command.Id = requestId;
command.Serializer = serializer;
command.ProtocolSwitch = ProtocolSwitch.create(protocolSwitchValue);
command.Timeout = timeout;
command.Clazz = clazz;
command.Header = header;
command.Content = content;
@out.Add(command);
}
else
{
@in.ResetReaderIndex();
}
}
else if (type == RpcCommandType.RESPONSE)
{
//decode response
if (@in.ReadableBytes >= RpcProtocolV2.ResponseHeaderLength - 3)
{
short cmdCode = @in.ReadShort();
byte ver2 = @in.ReadByte();
int requestId = @in.ReadInt();
byte serializer = @in.ReadByte();
byte protocolSwitchValue = @in.ReadByte();
short status = @in.ReadShort();
short classLen = @in.ReadShort();
short headerLen = @in.ReadShort();
int contentLen = @in.ReadInt();
byte[] clazz = null;
byte[] header = null;
byte[] content = null;
// decide the at-least bytes length for each version
int lengthAtLeastForV1 = classLen + headerLen + contentLen;
bool crcSwitchOn = ProtocolSwitch.isOn(ProtocolSwitch.CRC_SWITCH_INDEX, protocolSwitchValue);
int lengthAtLeastForV2 = classLen + headerLen + contentLen;
if (crcSwitchOn)
{
lengthAtLeastForV2 += 4; // crc int
}
// continue read
if ((version == RpcProtocolV2.PROTOCOL_VERSION_1 && @in.ReadableBytes >= lengthAtLeastForV1) || (version == RpcProtocolV2.PROTOCOL_VERSION_2 && @in.ReadableBytes >= lengthAtLeastForV2))
{
if (classLen > 0)
{
clazz = new byte[classLen];
@in.ReadBytes(clazz);
}
if (headerLen > 0)
{
header = new byte[headerLen];
@in.ReadBytes(header);
}
if (contentLen > 0)
{
content = new byte[contentLen];
@in.ReadBytes(content);
}
if (version == RpcProtocolV2.PROTOCOL_VERSION_2 && crcSwitchOn)
{
checkCRC(@in, startIndex);
}
}
else
{ // not enough data
@in.ResetReaderIndex();
return;
}
ResponseCommand command;
if (cmdCode == CommandCode_Fields.HEARTBEAT_VALUE)
{
command = new HeartbeatAckCommand();
}
else
{
command = createResponseCommand(cmdCode);
}
command.Type = type;
command.Version = ver2;
command.Id = requestId;
command.Serializer = serializer;
command.ProtocolSwitch = ProtocolSwitch.create(protocolSwitchValue);
command.ResponseStatus = (ResponseStatus)status;
command.Clazz = clazz;
command.Header = header;
command.Content = content;
command.ResponseTimeMillis = new DateTimeOffset(DateTime.UtcNow).ToUnixTimeMilliseconds();
command.ResponseHost = (IPEndPoint)ctx.Channel.RemoteAddress;
@out.Add(command);
}
else
{
@in.ResetReaderIndex();
}
}
else
{
string emsg = "Unknown command type: " + type;
logger.LogError(emsg);
throw new Exception(emsg);
}
}
}
else
{
string emsg = "Unknown protocol: " + protocol;
logger.LogError(emsg);
throw new Exception(emsg);
}
}
}
