Package org.agrona

Class PrintBufferUtil

java.lang.Object
org.agrona.PrintBufferUtil
public final class PrintBufferUtil extends Object
Useful utils to hex dump the Agrona's buffers.

This is code adapted from the Netty project adopted to support DirectBuffer.

  • Method Details

    • hexDump

      public static String hexDump(DirectBuffer buffer)
      Returns a hex dump of the specified buffer's readable bytes.
      Parameters:
      buffer - dumped buffer.
      Returns:
      hex dump in a string representation.

    • hexDump

      public static String hexDump(DirectBuffer buffer, int fromIndex, int length)
      Returns a hex dump of the specified buffer's subregion.
      Parameters:
      buffer - dumped buffer.
      fromIndex - where should we start to print.
      length - how much should we print.
      Returns:
      hex dump in a string representation.

    • hexDump

      public static String hexDump(byte[] array)
      Returns a hex dump of the specified byte array.
      Parameters:
      array - dumped array.
      Returns:
      hex dump in a string representation.

    • hexDump

      public static String hexDump(byte[] array, int fromIndex, int length)
      Returns a hex dump of the specified byte array's subregion.
      Parameters:
      array - dumped array.
      fromIndex - where should we start to print.
      length - how much should we print.
      Returns:
      hex dump in a string representation.

    • prettyHexDump

      public static String prettyHexDump(DirectBuffer buffer)
      Returns a hexadecimal dump of the specified DirectBuffer that is easy to read by humans.
      Parameters:
      buffer - dumped buffer.
      Returns:
      pretty hex dump in a string representation.

    • prettyHexDump

      public static String prettyHexDump(DirectBuffer buffer, int offset, int length)
      Returns a hexadecimal dump of the specified DirectBuffer that is easy to read by humans, starting at the given offset using the given length.
      Parameters:
      buffer - dumped buffer.
      offset - where should we start to print.
      length - how much should we print.
      Returns:
      pretty hex dump in a string representation.

    • appendPrettyHexDump

      public static void appendPrettyHexDump(StringBuilder dump, DirectBuffer buffer)
      Appends the prettified multi-line hexadecimal dump of the specified DirectBuffer to the specified StringBuilder that is easy to read by humans.
      Parameters:
      dump - where should we append string representation of the buffer.
      buffer - dumped buffer.

    • appendPrettyHexDump

      public static void appendPrettyHexDump(StringBuilder dump, DirectBuffer buffer, int offset, int length)
      Appends the prettified multi-line hexadecimal dump of the specified DirectBuffer to the specified StringBuilder that is easy to read by humans, starting at the given offset using the given length.
      Parameters:
      dump - where should we append string representation of the buffer.
      buffer - dumped buffer.
      offset - where should we start to print.
      length - how much should we print.

    • byteToHexStringPadded

      public static String byteToHexStringPadded(int value)
      Converts the specified byte value into a 2-digit hexadecimal integer.
      Parameters:
      value - converted value.
      Returns:
      hex representation of the value.