com.oceanbase.jdbc.internal.io.input

Class StandardPacketInputStream

java.lang.Object

com.oceanbase.jdbc.internal.io.input.AbstractPacketInputStream

com.oceanbase.jdbc.internal.io.input.StandardPacketInputStream

All Implemented Interfaces:

PacketInputStream

Direct Known Subclasses:

Ob20PacketInputStream

public class StandardPacketInputStream
extends AbstractPacketInputStream

Field Summary

Fields

Modifier and Type	Field and Description
protected int	lastPacketLength
protected byte[]	mysqlHeader

Fields inherited from class com.oceanbase.jdbc.internal.io.input.AbstractPacketInputStream

enableNetworkStatistics, inputStream, MAX_PACKET_SIZE, maxQuerySizeToLog, mysqlSeqNo, REUSABLE_BUFFER_LENGTH, reusableArray, serverThreadLog, threadId, timestampAfterRead, traceCache

Constructor Summary

Constructors

Constructor and Description
StandardPacketInputStream(InputStream in, Options options, long threadId) Constructor of standard socket MySQL packet stream reader.

Method Summary

Modifier and Type	Method and Description
static byte[]	create(byte[] value) Constructor for single Data (using text format).
static byte[]	create(byte[][] row, ColumnType[] columnTypes) Create Buffer with Text protocol values.
protected void	doTrace(int offset, int length, byte[] rawBytes)
int	getCompressLastPacketSeq()
InputStream	getInputStream() Get current input stream for creating compress input stream, to avoid losing already read bytes in case of pipelining.
Buffer	getPacket(boolean reUsable)
byte[]	getPacketArray(boolean reUsable) Get next packet.
protected void	readMysqlStream(byte[] rawBytes, int off, int remaining)

Methods inherited from class com.oceanbase.jdbc.internal.io.input.AbstractPacketInputStream

clearNetworkStatistics, close, enableNetworkStatistics, getLastPacketSeq, getTimestampAfterRead, setServerThreadId, setTraceCache

Methods inherited from class java.lang.Object

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

Field Detail

mysqlHeader

protected byte[] mysqlHeader

lastPacketLength

protected int lastPacketLength

Constructor Detail

StandardPacketInputStream

public StandardPacketInputStream(InputStream in,
                                 Options options,
                                 long threadId)

Constructor of standard socket MySQL packet stream reader.

Parameters:

in - stream

options - connection options

threadId - thread id

Method Detail

getPacket

public Buffer getPacket(boolean reUsable)
                 throws IOException

Specified by:

getPacket in interface PacketInputStream

Specified by:

getPacket in class AbstractPacketInputStream

Throws:

IOException

getPacketArray

public byte[] getPacketArray(boolean reUsable)
                      throws IOException

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

Specified by:

getPacketArray in interface PacketInputStream

Specified by:

getPacketArray in class AbstractPacketInputStream

Parameters:

reUsable - if can use existing reusable buffer to avoid creating array

Returns:

array packet.

Throws:

IOException - if socket exception occur.

readMysqlStream

protected void readMysqlStream(byte[] rawBytes,
                               int off,
                               int remaining)
                        throws IOException

Specified by:

readMysqlStream in class AbstractPacketInputStream

Throws:

IOException

doTrace

protected void doTrace(int offset,
                       int length,
                       byte[] rawBytes)

Specified by:

doTrace in class AbstractPacketInputStream

getCompressLastPacketSeq

public int getCompressLastPacketSeq()

Specified by:

getCompressLastPacketSeq in interface PacketInputStream

Specified by:

getCompressLastPacketSeq in class AbstractPacketInputStream

create

public static byte[] create(byte[] value)

Constructor for single Data (using text format).

Parameters:

value - value

Returns:

Buffer

create

public static byte[] create(byte[][] row,
                            ColumnType[] columnTypes)

Create Buffer with Text protocol values.

Parameters:

row - row data

columnTypes - column types

Returns:

Buffer

getInputStream

public InputStream getInputStream()

Get current input stream for creating compress input stream, to avoid losing already read bytes in case of pipelining.

Returns:

input stream.