com.singlestore.jdbc.client.socket.impl

Class PacketReader

java.lang.Object

com.singlestore.jdbc.client.socket.impl.PacketReader

All Implemented Interfaces:

Reader

public class PacketReader
extends Object
implements Reader

Packet reader

Constructor Summary

Constructors

Constructor and Description
PacketReader(InputStream in, Configuration conf, MutableByte sequence) Constructor of standard socket MySQL packet stream reader.

Method Summary

Modifier and Type	Method and Description
void	close() Close stream
MutableByte	getSequence() Get current sequence object
com.singlestore.jdbc.client.ReadableByteBuf	readableBufFromArray(byte[] buf) Get a readable byte array from byte array.
byte[]	readPacket(boolean traceEnable) Get next MySQL packet.
com.singlestore.jdbc.client.ReadableByteBuf	readReusablePacket() Get next MySQL packet.
com.singlestore.jdbc.client.ReadableByteBuf	readReusablePacket(boolean traceEnable) Get next MySQL packet.
void	setServerThreadId(Long serverThreadId, HostAddress hostAddress) Set server thread id.
void	skipPacket() Skip next MySQL packet.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PacketReader

public PacketReader(InputStream in,
                    Configuration conf,
                    MutableByte sequence)

Constructor of standard socket MySQL packet stream reader.

Parameters:

in - stream

conf - connection options

sequence - current increment sequence

Method Detail

readableBufFromArray

public com.singlestore.jdbc.client.ReadableByteBuf readableBufFromArray(byte[] buf)

Description copied from interface: Reader

Get a readable byte array from byte array. This packet is expected to be read immediately, since no lock is set on this packet.

Specified by:

readableBufFromArray in interface Reader

Parameters:

buf - byte array to be parsed

Returns:

array packet.

readReusablePacket

public com.singlestore.jdbc.client.ReadableByteBuf readReusablePacket()
                                                               throws IOException

Description copied from interface: Reader

Get next MySQL packet. Packet is expected to have size < 16M and will use if possible an internal cached buffer. This packet bytes are expect to be read immediately

Specified by:

readReusablePacket in interface Reader

Returns:

Readable byte array packet.

Throws:

IOException - if socket exception occur.

readReusablePacket

public com.singlestore.jdbc.client.ReadableByteBuf readReusablePacket(boolean traceEnable)
                                                               throws IOException

Description copied from interface: Reader

Get next MySQL packet. Packet is expected to have size < 16M and will use if possible an internal cached buffer. This packet bytes are expect to be read immediately

Specified by:

readReusablePacket in interface Reader

Parameters:

traceEnable - must trace packet

Returns:

Readable byte array packet.

Throws:

IOException - if socket exception occur.

readPacket

public byte[] readPacket(boolean traceEnable)
                  throws IOException

Get next MySQL packet. If packet is more than 16M, read as many packet needed to finish reading MySQL packet. (first that has not length = 16Mb)

Specified by:

readPacket in interface Reader

Parameters:

traceEnable - must trace packet.

Returns:

array packet.

Throws:

IOException - if socket exception occur.

skipPacket

public void skipPacket()
                throws IOException

Description copied from interface: Reader

Skip next MySQL packet. Packet is expected to have size < 16M

Specified by:

skipPacket in interface Reader

Throws:

IOException - if socket exception occur.

getSequence

public MutableByte getSequence()

Description copied from interface: Reader

Get current sequence object

Specified by:

getSequence in interface Reader

Returns:

current sequence

close

public void close()
           throws IOException

Description copied from interface: Reader

Close stream

Specified by:

close in interface Reader

Throws:

IOException - if any error occurs

setServerThreadId

public void setServerThreadId(Long serverThreadId,
                              HostAddress hostAddress)

Set server thread id.

Specified by:

setServerThreadId in interface Reader

Parameters:

serverThreadId - current server thread id.

hostAddress - host information