protected HeaderParams writeHeader(Transport transport, byte operationCode)
{
HeaderParams param = new HeaderParams().opCode(operationCode).cacheName(cacheName).flags(flags).clientIntel(HotRodConstants.CLIENT_INTELLIGENCE_BASIC).topologyId(topologyId).txMarker(NO_TX);
if (logger.IsTraceEnabled)
{
if (logger.IsTraceEnabled)
{
string msg = ("headerparams created " + operationCode + " " + cacheName + " " + flags + " " + HotRodConstants.CLIENT_INTELLIGENCE_BASIC + " " + topologyId + " " + NO_TX);
logger.Trace(msg);
}
}
return codec.writeHeader(transport, param, HotRodConstants.VERSION_11);
}
public byte ReadHeader(ITransport trans, HeaderParams param, OperationsFactory opFac, HotRodOperation op)
{
byte magic = trans.ReadByte(); //Reads magic byte: indicates whether the header is a request or a response
if (magic != HotRodConstants.RESPONSE_MAGIC)
{
String message = "Invalid magic number! Expected " + HotRodConstants.RESPONSE_MAGIC + "received " + magic;
InvalidResponseException e = new InvalidResponseException(message);
logger.Warn(e);
throw e;
}
long receivedMessageId = trans.ReadVLong(); //Reads the message ID. Should be similar to the msg ID of the request
if (receivedMessageId != param.Messageid && receivedMessageId != 0)
{
String message = "Invalid Message ID! Expected " + param.Messageid + "received " + receivedMessageId;
InvalidResponseException e = new InvalidResponseException(message);
logger.Warn(e);
throw new InvalidResponseException(message);
}
byte receivedOpCode = trans.ReadByte(); //Reads the OP Code
logger.Trace(String.Format("response code recieved = " + receivedOpCode));
if (receivedOpCode != param.OpRespCode) //Checks whether the recieved OP code is the corrsponding OPCode for the request sent
{
if (receivedOpCode == HotRodConstants.ERROR_RESPONSE) //In case of any error indication by the server
{
logger.Warn(String.Format("Error Response Recieved : " + receivedOpCode));
throw new InvalidResponseException("Error Response Recieved");
}
logger.Warn(String.Format("Invalid Response Recieved : Expected " + param.OpRespCode + " Recieved " + receivedOpCode));
throw new InvalidResponseException("Invalid Response Operation.");
}
byte status = trans.ReadByte(); //Reads the status
logger.Trace(String.Format("Status : " + status));
byte topchange = trans.ReadByte(); //Reads the Topology change byte. Equals 0 for No Change in topology
logger.Trace(String.Format("Topology change indicator value : " + topchange));
int newTopology = param.Topologyid;
if (topchange == 1)
ReadNewTopologyAndHash(trans, param, opFac, op);
return status;
}
public byte readHeader(Transport trans, HeaderParams param)
{
byte magic = trans.readByte(); //Reads magic byte: indicates whether the header is a request or a response
if (magic != HotRodConstants.RESPONSE_MAGIC)
{
String message = "Invalid magic number! Expected " + HotRodConstants.RESPONSE_MAGIC + "received " + magic;
InvalidResponseException e = new InvalidResponseException(message);
logger.Warn(e);
throw e;
}
long receivedMessageId = trans.readVLong(); //Reads the message ID. Should be similar to the msg ID of the request
if (receivedMessageId != param.Messageid && receivedMessageId != 0)
{
String message = "Invalid Message ID! Expected " + param.Messageid + "received " + receivedMessageId;
InvalidResponseException e = new InvalidResponseException(message);
logger.Warn(e);
throw new InvalidResponseException(message);
}
byte receivedOpCode = trans.readByte(); //Reads the OP Code
logger.Trace(String.Format("response code recieved = " + receivedOpCode));
if (receivedOpCode != param.OpRespCode) //Checks whether the recieved OP code is the corrsponding OPCode for the request sent
{
if (receivedOpCode == HotRodConstants.ERROR_RESPONSE) //In case of any error indication by the server
{
logger.Warn(String.Format("Error Response Recieved : " + receivedOpCode));
throw new NotImplementedException("Error Response Recieved");
}
logger.Warn(String.Format("Invalid Response Recieved : Expected " + param.OpRespCode + " Recieved " + receivedOpCode));
throw new InvalidResponseException("Invalid Response Operation.");
}
byte status = trans.readByte(); //Reads the status
byte topchange = trans.readByte(); //Reads the Topology change byte. Equals 0 for No Change in topology
logger.Trace(String.Format("Topology change indicator value : " + topchange));
return(status);
}
public HeaderParams writeHeader(Transport trans, HeaderParams param, byte ver)
{
trans.writeByte(HotRodConstants.REQUEST_MAGIC);
//TODO: Implement a proper way to incremet message ID
Random r = new Random();
StringBuilder sb = new StringBuilder();
param.messageId(r.Next(0, 255));
trans.writeVLong(param.Messageid); //message id
trans.writeByte(HotRodConstants.VERSION_11); //version
trans.writeByte(param.OperCode); //opcode
trans.writeVInt(0); //default cache name. therefore cache name length is 0
//trans.writeArray(param.Cachename); // Cache name is not used for default cache
int flagInt = 0x00; //0x00 Used here since intention is to use no flags
/*
* if(param.Flag!=null)
* {
* foreach(Flag f in param.Flag)
* {
* flagInt=f.getFlagInt() | flagInt;
* }
* }
*/
trans.writeVInt(flagInt); //flag is 0
trans.writeByte(param.Clientintel);
trans.writeVInt(0); //for basic clients topology ID = 0
trans.writeByte(param.Txmarker);
return(param);
}
public void ReadNewTopologyAndHash(ITransport transport, HeaderParams param, OperationsFactory opFac, HotRodOperation op)
{
int newTopologyId = transport.ReadVInt();
cacheManager.SetTopologyId(newTopologyId);
int numOfServers = transport.ReadVInt();
if (logger.IsTraceEnabled)
{
logger.Trace("Topology change request: newTopologyId= " + newTopologyId + " numOfServers= " + numOfServers);
}
List<Tuple<string, int>> newServerList = new List<Tuple<string, int>>();
for (int i = 0; i < numOfServers; i++)
{
string host = transport.ReadString(); //int hostIPLength will be read inside the ReadString Method.
int port = transport.ReadUnsignedShort();
if (logger.IsTraceEnabled)
{
logger.Trace("Server read : " + host + ":" + port);
}
Tuple<string, int> newServer = new Tuple<string, int>(host, port);
newServerList.Add(newServer);
}
transport.GetTransportFactory().UpdateServers(newServerList);
}
public HeaderParams WriteHeader(ITransport trans, HeaderParams param, byte ver)
{
trans.WriteByte(HotRodConstants.REQUEST_MAGIC);
//TODO: Implement a proper way to increment message ID
Random r = new Random();
StringBuilder sb = new StringBuilder();
param.MessageId(r.Next(0, 255));
trans.WriteVLong(param.Messageid); //message id
trans.WriteByte(HotRodConstants.VERSION_11);//version
trans.WriteByte(param.OperCode);//opcode
if (param.Cachename.Length != 0)
{
trans.WriteArray(param.Cachename); // Cache name is not used for default cache
}
else
{
trans.WriteVInt(param.Cachename.Length);//default cache name. therefore cache name length is 0
}
int flagInt = 0x00; //0x00 Used here since intention is to use no flags
if (param.Flag != null)
{
foreach (Flag f in param.Flag)
{
flagInt = f.GetFlagInt() | flagInt;
}
}
trans.WriteVInt(flagInt);//flag is 0 for base clients
trans.WriteByte(param.Clientintel);
trans.WriteVInt(cacheManager.GetTopologyId());//for basic clients topology ID = 0
if (logger.IsTraceEnabled)
logger.Trace("topologyID Sent = " + param.Topologyid);
trans.WriteByte(param.Txmarker);
return param;
}
public HeaderParams writeHeader(Transport trans, HeaderParams param, byte ver)
{
trans.writeByte(HotRodConstants.REQUEST_MAGIC);
//TODO: Implement a proper way to incremet message ID
Random r = new Random();
StringBuilder sb = new StringBuilder();
param.messageId(r.Next(0, 255));
trans.writeVLong(param.Messageid); //message id
trans.writeByte(HotRodConstants.VERSION_11);//version
trans.writeByte(param.OperCode);//opcode
trans.writeVInt(0); //default cache name. therefore cache name length is 0
//trans.writeArray(param.Cachename); // Cache name is not used for default cache
int flagInt = 0x00; //0x00 Used here since intention is to use no flags
/*
if(param.Flag!=null)
{
foreach(Flag f in param.Flag)
{
flagInt=f.getFlagInt() | flagInt;
}
}
*/
trans.writeVInt(flagInt);//flag is 0
trans.writeByte(param.Clientintel);
trans.writeVInt(0);//for basic clients topology ID = 0
trans.writeByte(param.Txmarker);
return param;
}
/**
* Magic | Message Id | Op code | Status | Topology Change Marker
*/
protected byte readHeaderAndValidate(Transport transport, HeaderParams param)
{
return codec.readHeader(transport, param);
}
