com.google.code.proto.streamio

Class PBWireSignedByteMarkerHelper

java.lang.Object

com.google.code.proto.streamio.AbstractPBWireByteMarkerHelper

com.google.code.proto.streamio.PBWireSignedByteMarkerHelper

All Implemented Interfaces:

IPBWireByteMarkerHelper

public class PBWireSignedByteMarkerHelper
extends AbstractPBWireByteMarkerHelper

A utility class to help write delimiting byte markers for Google protocol buffer generated messages used with PBStreamReader. The delimeter is a byte array holding the size of the generated message that will follow. The delimiter is an signed byte marker (uses full range -128 to +127, so don't read these with a client that can only read characters 0-127).

Author:

nichole

Constructor Summary

Constructors

Constructor and Description
PBWireSignedByteMarkerHelper()

Method Summary

Modifier and Type	Method and Description
int	bytesToInteger(byte[] marker) Convert the marker byte array to an integer where each item in marker array is part of byte shifted integer
byte[]	integerToBytesBigEndian(int value) Convert the integer into a byte array composed of byte shifted parts of the integer.

Methods inherited from class com.google.code.proto.streamio.AbstractPBWireByteMarkerHelper

createMessageDelimiter, estimateTotalContentLength, getByteMarkerSize, getDelimiterSize, getMarkerForStart

Methods inherited from class java.lang.Object

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

Constructor Detail

PBWireSignedByteMarkerHelper

public PBWireSignedByteMarkerHelper()

Method Detail

integerToBytesBigEndian

public byte[] integerToBytesBigEndian(int value)

Convert the integer into a byte array composed of byte shifted parts of the integer.

Specified by:

integerToBytesBigEndian in interface IPBWireByteMarkerHelper

Specified by:

integerToBytesBigEndian in class AbstractPBWireByteMarkerHelper

Parameters:

value - the integer to be represented by the returned byte array

Returns:

value in signed integer big endian bytes format

bytesToInteger

public int bytesToInteger(byte[] marker)

Convert the marker byte array to an integer where each item in marker array is part of byte shifted integer

Specified by:

bytesToInteger in interface IPBWireByteMarkerHelper

Specified by:

bytesToInteger in class AbstractPBWireByteMarkerHelper

Parameters:

marker - a byte array in big endian bytes format

Returns:

the original value of the byte array as a signed integer