com.cosmian.utils

Class Leb128

java.lang.Object

com.cosmian.utils.Leb128

public class Leb128
extends Object

Constructor Summary

Constructors

Constructor and Description
Leb128()

Method Summary

Modifier and Type	Method and Description
static byte[]	readByteArray(InputStream is) Read a byte array prepended with a LEB 128 u64 indicated its length Warning: the maximum array size is 2^31
static long	readU64(InputStream is) Read an u64 encoded as an LEB 128 from a stream
static void	writeArray(OutputStream os, byte[] array) Write a byte array prepended with a LEB128 u64 indicating its length
static void	writeU64(OutputStream os, long value) Write a u64 as an LEB128

Methods inherited from class java.lang.Object

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

Constructor Detail

Leb128

public Leb128()

Method Detail

writeU64

public static void writeU64(OutputStream os,
                            long value)
                     throws IOException

Write a u64 as an LEB128

Parameters:

os - the OutputStream to write to

value - the value to write

Throws:

IOException - if the stream is in error

readU64

public static long readU64(InputStream is)
                    throws IOException

Read an u64 encoded as an LEB 128 from a stream

Parameters:

is - the InputStream to read from

Returns:

the long value

Throws:

IOException - if the stream is in error

readByteArray

public static byte[] readByteArray(InputStream is)
                            throws IOException

Read a byte array prepended with a LEB 128 u64 indicated its length Warning: the maximum array size is 2^31

Parameters:

is - the InputStream to read the array from

Returns:

the byte array

Throws:

IOException - if the stream is in error or the number of bytes read is not the expected value

writeArray

public static void writeArray(OutputStream os,
                              byte[] array)
                       throws IOException

Write a byte array prepended with a LEB128 u64 indicating its length

Parameters:

os - the OutputStream to write to

array - the array to write

Throws:

IOException - is the stream is in error