serialization - Scala library to convert numbers (Int, Long, Double) to/from Array[Byte]

Question

As the title says, is there any Scala library that exports functions to convert, preferably fluently, a byte array to an Int, to a Long or to a Double?

I need something compatible with 2.9.1 and FOSS.

If you happen to know exactly what I need and where to find it, a line for SBT and a line for an example will be enough! :)

If there's no such thing as what I'm looking for, the closest thing in Java will also work...

question from:https://stackoverflow.com/questions/9810010/scala-library-to-convert-numbers-int-long-double-to-from-arraybyte

Answer 1

You can use Java NIO's ByteBuffer:

import java.nio.ByteBuffer

ByteBuffer.wrap(Array[Byte](1, 2, 3, 4)).getInt
ByteBuffer.wrap(Array[Byte](1, 2, 3, 4, 5, 6, 7, 8)).getDouble
ByteBuffer.wrap(Array[Byte](1, 2, 3, 4, 5, 6, 7, 8)).getLong

No extra dependencies required.