Package org.mariadb.jdbc.internal.com.read

Class Buffer

  • public class Buffer
extends Object

    • Field Detail

      • 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

      • readString

        public String readString​(int numberOfBytes)
        Read String with defined length.
        Parameters:
        numberOfBytes - raw data length.
        Returns:
        String value

      • 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

      • getByte

        public byte getByte()
        Read current buffer byte without incrementing position.
        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

      • skipLengthEncodedNumeric

        public void skipLengthEncodedNumeric()
        Skip length encoded numeric

      • 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

      • writeStringLength

        public void writeStringLength​(byte[] bytes)
        Write value with length encoded prefix.
        Parameters:
        bytes - value to write

      • writeStringSmallLength

        public void writeStringSmallLength​(byte[] value)
        Write value with length encoded prefix. value length MUST be less than 251 char
        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