com.oceanbase.jdbc.internal.io.output

Class AbstractPacketOutputStream

java.lang.Object

java.io.OutputStream

java.io.FilterOutputStream

com.oceanbase.jdbc.internal.io.output.AbstractPacketOutputStream

All Implemented Interfaces:

PacketOutputStream, Closeable, Flushable, AutoCloseable

Direct Known Subclasses:

CompressPacketOutputStream, Ob20PacketOutputStream, StandardPacketOutputStream

public abstract class AbstractPacketOutputStream
extends FilterOutputStream
implements PacketOutputStream

Field Summary

Fields

Modifier and Type	Field and Description
protected byte[]	buf
protected Charset	charset
protected long	cmdLength
protected boolean	enableNetworkStatistics
protected int	maxAllowedPacket
protected int	maxPacketLength
protected int	maxQuerySizeToLog
protected int	mysqlSeqNo
protected boolean	permitTrace
protected int	pos
protected String	serverThreadLog
protected long	threadId
protected long	timestampBeforeFlush
protected LruTraceCache	traceCache

Fields inherited from class java.io.FilterOutputStream

out

Constructor Summary

Constructors

Constructor and Description
AbstractPacketOutputStream(OutputStream out, int maxQuerySizeToLog, long threadId, String encoding) Common feature to write data into socket, creating MariaDB Packet.

Method Summary

Modifier and Type	Method and Description
boolean	bufferIsDataAfterMark()
void	checkMaxAllowedLength(int length) Count query size.
boolean	checkRemainingSize(int len)
void	clearNetworkStatistics()
void	enableNetworkStatistics(boolean flag)
boolean	exceedMaxLength()
void	flush() Send packet to socket.
protected abstract void	flushBuffer(boolean commandEnd)
void	flushBufferStopAtMark() Flush to last mark.
Charset	getCharset()
int	getMaxAllowedPacket()
int	getMaxPacketLength()
OutputStream	getOutputStream()
int	getPosition() Get current position
long	getTimestampBeforeFlush()
TimeZone	getTimeZone()
boolean	isMarked()
void	mark()
void	permitTrace(boolean permitTrace)
byte[]	resetMark() Reset mark flag and send bytes after mark flag.
abstract void	setMaxAllowedPacket(int maxAllowedPacket)
void	setPosition(int val) Set current position
void	setServerThreadId(long serverThreadId, Boolean isMaster) Set server thread id.
void	setTimeZone(TimeZone tm)
void	setTraceCache(LruTraceCache traceCache)
abstract void	startPacket(int seqNo)
void	write(byte[] arr)
void	write(byte[] arr, int off, int len) Write byte array to buffer.
void	write(InputStream is, boolean escape, boolean noBackslashEscapes) Write stream into socket.
void	write(InputStream is, long length, boolean escape, boolean noBackslashEscapes) Write stream into socket.
void	write(int value) Write byte into buffer, flush buffer to socket if needed.
void	write(Reader reader, boolean escape, boolean noBackslashEscapes) Write reader into socket.
void	write(Reader reader, long length, boolean escape, boolean noBackslashEscapes) Write reader into socket.
void	write(String str)
void	write(String str, boolean escape, boolean noBackslashEscapes) Write string to socket.
void	writeBytes(byte value, int len) Write byte value, len times into buffer.
void	writeBytesEscaped(byte[] bytes, int len, boolean noBackslashEscapes) Write escape bytes to socket.
void	writeBytesEscapedQuote(byte[] bytes, int len, boolean noBackslashEscapes) Write escape bytes to socket.
abstract void	writeEmptyPacket()
void	writeEmptyPacket(int seqNo) Send empty packet.
void	writeEscapeQuote(Reader reader, boolean noBackslashEscapes)
void	writeEscapeQuote(Reader reader, long length, boolean noBackslashEscapes)
void	writeFieldLength(long length) Write field length into buffer, flush socket if needed.
void	writeFloatV1(float f)
void	writeHex(InputStream is, boolean escape, boolean noBackslashEscapes) Write stream AS hexdump into socket.
void	writeHex(InputStream is, long length, boolean escape, boolean noBackslashEscapes) Write stream As hexdump into socket.
void	writeInt(int value) Write int value into buffer.
void	writeIntV1(int i) writeInt operation for jdbc 1.x
void	writeLong(long value) Write long value into buffer.
void	writeLongV1(long i) writeLong operation for jdbc 1.x
void	writeShort(short value) Write short value into buffer.

Methods inherited from class java.io.FilterOutputStream

close

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.oceanbase.jdbc.internal.io.output.PacketOutputStream

close, initialPacketPos

Field Detail

threadId

protected long threadId

mysqlSeqNo

protected int mysqlSeqNo

traceCache

protected LruTraceCache traceCache

serverThreadLog

protected String serverThreadLog

maxQuerySizeToLog

protected final int maxQuerySizeToLog

enableNetworkStatistics

protected boolean enableNetworkStatistics

timestampBeforeFlush

protected long timestampBeforeFlush

buf

protected byte[] buf

pos

protected int pos

cmdLength

protected long cmdLength

maxPacketLength

protected int maxPacketLength

maxAllowedPacket

protected int maxAllowedPacket

permitTrace

protected boolean permitTrace

charset

protected Charset charset

Constructor Detail

AbstractPacketOutputStream

public AbstractPacketOutputStream(OutputStream out,
                                  int maxQuerySizeToLog,
                                  long threadId,
                                  String encoding)

Common feature to write data into socket, creating MariaDB Packet.

Parameters:

out - socket outputStream

maxQuerySizeToLog - maximum query size to log

threadId - thread id

Method Detail

setTimeZone

public void setTimeZone(TimeZone tm)

Specified by:

setTimeZone in interface PacketOutputStream

getTimeZone

public TimeZone getTimeZone()

Specified by:

getTimeZone in interface PacketOutputStream

getMaxPacketLength

public int getMaxPacketLength()

startPacket

public abstract void startPacket(int seqNo)

Specified by:

startPacket in interface PacketOutputStream

enableNetworkStatistics

public void enableNetworkStatistics(boolean flag)

Specified by:

enableNetworkStatistics in interface PacketOutputStream

getTimestampBeforeFlush

public long getTimestampBeforeFlush()

Specified by:

getTimestampBeforeFlush in interface PacketOutputStream

clearNetworkStatistics

public void clearNetworkStatistics()

Specified by:

clearNetworkStatistics in interface PacketOutputStream

getCharset

public Charset getCharset()

Specified by:

getCharset in interface PacketOutputStream

flushBuffer

protected abstract void flushBuffer(boolean commandEnd)
                             throws IOException

Throws:

IOException

writeEmptyPacket

public void writeEmptyPacket(int seqNo)
                      throws IOException

Send empty packet.

Specified by:

writeEmptyPacket in interface PacketOutputStream

Parameters:

seqNo - packet sequence

Throws:

IOException - if socket error occur.

writeEmptyPacket

public abstract void writeEmptyPacket()
                               throws IOException

Specified by:

writeEmptyPacket in interface PacketOutputStream

Throws:

IOException

flush

public void flush()
           throws IOException

Send packet to socket.

Specified by:

flush in interface PacketOutputStream

Specified by:

flush in interface Flushable

Overrides:

flush in class FilterOutputStream

Throws:

IOException - if socket error occur.

checkRemainingSize

public boolean checkRemainingSize(int len)

Specified by:

checkRemainingSize in interface PacketOutputStream

checkMaxAllowedLength

public void checkMaxAllowedLength(int length)
                           throws MaxAllowedPacketException

Count query size. If query size is greater than max_allowed_packet and nothing has been already send, throw an exception to avoid having the connection closed.

Specified by:

checkMaxAllowedLength in interface PacketOutputStream

Parameters:

length - additional length to query size

Throws:

MaxAllowedPacketException - if query has not to be send.

exceedMaxLength

public boolean exceedMaxLength()

Specified by:

exceedMaxLength in interface PacketOutputStream

getOutputStream

public OutputStream getOutputStream()

Specified by:

getOutputStream in interface PacketOutputStream

writeShort

public void writeShort(short value)
                throws IOException

Write short value into buffer. flush buffer if too small.

Specified by:

writeShort in interface PacketOutputStream

Parameters:

value - short value

Throws:

IOException - if socket error occur

writeIntV1

public final void writeIntV1(int i)
                      throws IOException

writeInt operation for jdbc 1.x

Specified by:

writeIntV1 in interface PacketOutputStream

Parameters:

i -

Throws:

IOException

writeInt

public void writeInt(int value)
              throws IOException

Write int value into buffer. flush buffer if too small.

Specified by:

writeInt in interface PacketOutputStream

Parameters:

value - int value

Throws:

IOException - if socket error occur

writeFloatV1

public void writeFloatV1(float f)
                  throws IOException

Specified by:

writeFloatV1 in interface PacketOutputStream

Throws:

IOException

writeLong

public void writeLong(long value)
               throws IOException

Write long value into buffer. flush buffer if too small.

Specified by:

writeLong in interface PacketOutputStream

Parameters:

value - long value

Throws:

IOException - if socket error occur

writeLongV1

public void writeLongV1(long i)
                 throws IOException

writeLong operation for jdbc 1.x

Specified by:

writeLongV1 in interface PacketOutputStream

Parameters:

i -

Throws:

IOException

writeBytes

public void writeBytes(byte value,
                       int len)
                throws IOException

Write byte value, len times into buffer. flush buffer if too small.

Specified by:

writeBytes in interface PacketOutputStream

Parameters:

value - byte value

len - number of time to write value.

Throws:

IOException - if socket error occur.

writeFieldLength

public void writeFieldLength(long length)
                      throws IOException

Write field length into buffer, flush socket if needed.

Specified by:

writeFieldLength in interface PacketOutputStream

Parameters:

length - field length

Throws:

IOException - if socket error occur.

write

public void write(int value)
           throws IOException

Write byte into buffer, flush buffer to socket if needed.

Specified by:

write in interface PacketOutputStream

Overrides:

write in class FilterOutputStream

Parameters:

value - byte to send

Throws:

IOException - if socket error occur.

write

public void write(byte[] arr)
           throws IOException

Specified by:

write in interface PacketOutputStream

Overrides:

write in class FilterOutputStream

Throws:

IOException

write

public void write(byte[] arr,
                  int off,
                  int len)
           throws IOException

Write byte array to buffer. If buffer is full, flush socket.

Specified by:

write in interface PacketOutputStream

Overrides:

write in class FilterOutputStream

Parameters:

arr - byte array

off - offset

len - byte length to write

Throws:

IOException - if socket error occur

write

public void write(String str)
           throws IOException

Specified by:

write in interface PacketOutputStream

Throws:

IOException

write

public void write(String str,
                  boolean escape,
                  boolean noBackslashEscapes)
           throws IOException

Write string to socket.

Specified by:

write in interface PacketOutputStream

Parameters:

str - string

escape - must be escape

noBackslashEscapes - escape method

Throws:

IOException - if socket error occur

write

public void write(InputStream is,
                  boolean escape,
                  boolean noBackslashEscapes)
           throws IOException

Write stream into socket.

Specified by:

write in interface PacketOutputStream

Parameters:

is - inputStream

escape - must be escape

noBackslashEscapes - escape method

Throws:

IOException - if socket error occur

writeHex

public void writeHex(InputStream is,
                     boolean escape,
                     boolean noBackslashEscapes)
              throws IOException

Write stream AS hexdump into socket.

Specified by:

writeHex in interface PacketOutputStream

Parameters:

is - inputStream

escape - must be escape

noBackslashEscapes - escape method

Throws:

IOException - if socket error occur

write

public void write(InputStream is,
                  long length,
                  boolean escape,
                  boolean noBackslashEscapes)
           throws IOException

Write stream into socket.

Specified by:

write in interface PacketOutputStream

Parameters:

is - inputStream

length - write length

escape - must be escape

noBackslashEscapes - escape method

Throws:

IOException - if socket error occur

writeHex

public void writeHex(InputStream is,
                     long length,
                     boolean escape,
                     boolean noBackslashEscapes)
              throws IOException

Write stream As hexdump into socket.

Specified by:

writeHex in interface PacketOutputStream

Parameters:

is - inputStream

length - write length

escape - must be escape

noBackslashEscapes - escape method

Throws:

IOException - if socket error occur

write

public void write(Reader reader,
                  boolean escape,
                  boolean noBackslashEscapes)
           throws IOException

Write reader into socket.

Specified by:

write in interface PacketOutputStream

Parameters:

reader - reader

escape - must be escape

noBackslashEscapes - escape method

Throws:

IOException - if socket error occur

writeEscapeQuote

public void writeEscapeQuote(Reader reader,
                             boolean noBackslashEscapes)
                      throws IOException

Specified by:

writeEscapeQuote in interface PacketOutputStream

Throws:

IOException

writeEscapeQuote

public void writeEscapeQuote(Reader reader,
                             long length,
                             boolean noBackslashEscapes)
                      throws IOException

Specified by:

writeEscapeQuote in interface PacketOutputStream

Throws:

IOException

write

public void write(Reader reader,
                  long length,
                  boolean escape,
                  boolean noBackslashEscapes)
           throws IOException

Write reader into socket.

Specified by:

write in interface PacketOutputStream

Parameters:

reader - reader

length - write length

escape - must be escape

noBackslashEscapes - escape method

Throws:

IOException - if socket error occur

writeBytesEscaped

public void writeBytesEscaped(byte[] bytes,
                              int len,
                              boolean noBackslashEscapes)
                       throws IOException

Write escape bytes to socket.

Specified by:

writeBytesEscaped in interface PacketOutputStream

Parameters:

bytes - bytes

len - len to write

noBackslashEscapes - escape method

Throws:

IOException - if socket error occur

writeBytesEscapedQuote

public void writeBytesEscapedQuote(byte[] bytes,
                                   int len,
                                   boolean noBackslashEscapes)
                            throws IOException

Write escape bytes to socket.

Specified by:

writeBytesEscapedQuote in interface PacketOutputStream

Parameters:

bytes - bytes

len - len to write

noBackslashEscapes - escape method

Throws:

IOException - if socket error occur

getMaxAllowedPacket

public int getMaxAllowedPacket()

Specified by:

getMaxAllowedPacket in interface PacketOutputStream

setMaxAllowedPacket

public abstract void setMaxAllowedPacket(int maxAllowedPacket)

Specified by:

setMaxAllowedPacket in interface PacketOutputStream

permitTrace

public void permitTrace(boolean permitTrace)

Specified by:

permitTrace in interface PacketOutputStream

setServerThreadId

public void setServerThreadId(long serverThreadId,
                              Boolean isMaster)

Set server thread id.

Specified by:

setServerThreadId in interface PacketOutputStream

Parameters:

serverThreadId - current server thread id.

isMaster - is server master

setTraceCache

public void setTraceCache(LruTraceCache traceCache)

Specified by:

setTraceCache in interface PacketOutputStream

mark

public void mark()

Specified by:

mark in interface PacketOutputStream

isMarked

public boolean isMarked()

Specified by:

isMarked in interface PacketOutputStream

flushBufferStopAtMark

public void flushBufferStopAtMark()
                           throws IOException

Flush to last mark.

Specified by:

flushBufferStopAtMark in interface PacketOutputStream

Throws:

IOException - if flush fail.

bufferIsDataAfterMark

public boolean bufferIsDataAfterMark()

Specified by:

bufferIsDataAfterMark in interface PacketOutputStream

resetMark

public byte[] resetMark()

Reset mark flag and send bytes after mark flag.

Specified by:

resetMark in interface PacketOutputStream

Returns:

bytes after mark flag

getPosition

public int getPosition()

Get current position

Specified by:

getPosition in interface PacketOutputStream

Returns:

position value

setPosition

public void setPosition(int val)

Set current position

Specified by:

setPosition in interface PacketOutputStream

Parameters:

val - set current position vallue to val