brown.tracingplane.atomlayer

Class ProtobufVarint

java.lang.Object

brown.tracingplane.atomlayer.ProtobufVarint

public class ProtobufVarint
extends java.lang.Object

Duplicates logic of Protocol Buffers variable length integer encoding, but with different logic for exceptions. This enables us to handle end-of-stream differently to malformed length prefix exceptions or other IO exceptions

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ProtobufVarint.EndOfStreamException
static class	ProtobufVarint.MalformedVarintException

Method Summary

Modifier and Type	Method and Description
static int	readRawVarint32(java.nio.ByteBuffer b)
static int	readRawVarint32(java.io.InputStream in)
static int	sizeOf(int value)
static void	writeRawVarint32(java.nio.ByteBuffer buf, int value)
static void	writeRawVarint32(java.io.OutputStream out, int value)

Methods inherited from class java.lang.Object

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

Method Detail

readRawVarint32

public static int readRawVarint32(java.io.InputStream in)
                           throws ProtobufVarint.EndOfStreamException,
                                  ProtobufVarint.MalformedVarintException,
                                  java.io.IOException

Throws:

ProtobufVarint.EndOfStreamException

ProtobufVarint.MalformedVarintException

java.io.IOException

readRawVarint32

public static int readRawVarint32(java.nio.ByteBuffer b)
                           throws java.nio.BufferUnderflowException,
                                  ProtobufVarint.MalformedVarintException

Throws:

java.nio.BufferUnderflowException

ProtobufVarint.MalformedVarintException

writeRawVarint32

public static void writeRawVarint32(java.nio.ByteBuffer buf,
                                    int value)

writeRawVarint32

public static void writeRawVarint32(java.io.OutputStream out,
                                    int value)
                             throws java.io.IOException

Throws:

java.io.IOException

sizeOf

public static int sizeOf(int value)