org.mariadb.jdbc.internal.com.read
Class Buffer

java.lang.Object
  org.mariadb.jdbc.internal.com.read.Buffer

public class Buffer
extends Object

Field Summary

byte[]	buf
int	limit
int	position
static Charset	UTF_8

Constructor Summary

Buffer(byte[] buf)
Constructor with default limit and offset.

Buffer(byte[] buf, int limit)

Method Summary

byte	getByteAt(int position)
Buffer	getLengthEncodedBuffer() Get next data bytes from length encoded prefix.
byte[]	getLengthEncodedBytes() Get next data bytes with length encoded prefix.
long	getLengthEncodedNumeric() Get next binary data length.
int	read24bitword() Read 24 bit integer.
byte	readByte() Reads a byte from the buffer.
byte[]	readBytesNullEnd() Reads a byte array from the buffer, looks for a 0 to end the array.
int	readInt() Read a int (4 bytes) from the buffer.
long	readLong() Read a long (8 bytes) from the buffer.
byte[]	readRawBytes(int numberOfBytes) Read raw data.
short	readShort() Read a short (2 bytes) from the buffer.
String	readStringLengthEncoded(Charset charset) Reads length-encoded string.
String	readStringNullEnd(Charset charset) Reads a string from the buffer, looks for a 0 to end the string.
int	remaining()
void	skipByte()
void	skipBytes(int bytesToSkip)
void	skipLengthEncodedBytes() Skip next length encode binary data.
void	writeBytes(byte header, byte[] bytes) Write bytes.
void	writeLength(long length) Write length.
void	writeStringLength(String value) Write value with length encoded prefix.

Methods inherited from class java.lang.Object

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

Field Detail

UTF_8

public static final Charset UTF_8

buf

public byte[] buf

position

public int position

limit

public int limit

Constructor Detail

Buffer

public Buffer(byte[] buf,
              int limit)

Buffer

public Buffer(byte[] buf)

Constructor with default limit and offset.

Parameters:

buf - byte array

Method Detail

remaining

public int remaining()

readStringNullEnd

public String readStringNullEnd(Charset charset)

Reads a string from the buffer, looks for a 0 to end the string.

Parameters:

charset - the charset to use, for example ASCII

Returns:

the read string

readBytesNullEnd

public byte[] readBytesNullEnd()

Reads a byte array from the buffer, looks for a 0 to end the array.

Returns:

the read array

readStringLengthEncoded

public String readStringLengthEncoded(Charset charset)

Reads length-encoded string.

Parameters:

charset - the charset to use, for example ASCII

Returns:

the read string

readShort

public short readShort()

Read a short (2 bytes) from the buffer.

Returns:

an short

read24bitword

public int read24bitword()

Read 24 bit integer.

Returns:

length

readInt

public int readInt()

Read a int (4 bytes) from the buffer.

Returns:

a int

readLong

public long readLong()

Read a long (8 bytes) from the buffer.

Returns:

a long

readByte

public byte readByte()

Reads a byte from the buffer.

Returns:

the byte

readRawBytes

public byte[] readRawBytes(int numberOfBytes)

Read raw data.

Parameters:

numberOfBytes - raw data length.

Returns:

raw data

skipByte

public void skipByte()

skipBytes

public void skipBytes(int bytesToSkip)

skipLengthEncodedBytes

public void skipLengthEncodedBytes()

Skip next length encode binary data.

getLengthEncodedNumeric

public long getLengthEncodedNumeric()

Get next binary data length.

Returns:

length of next binary data

getLengthEncodedBuffer

public Buffer getLengthEncodedBuffer()

Get next data bytes from length encoded prefix.

Returns:

buffer

getLengthEncodedBytes

public byte[] getLengthEncodedBytes()

Get next data bytes with length encoded prefix.

Returns:

the raw binary data

getByteAt

public byte getByteAt(int position)

writeStringLength

public void writeStringLength(String value)

Write value with length encoded prefix.

Parameters:

value - value to write

writeBytes

public void writeBytes(byte header,
                       byte[] bytes)

Write bytes.

Parameters:

header - header byte

bytes - command bytes

writeLength

public void writeLength(long length)

Write length.

Parameters:

length - length