Package org.pepsoft.util

Class DataUtils

java.lang.Object

org.pepsoft.util.DataUtils

public final class DataUtils
extends Object

Utility methods for working with data.

Created by Pepijn on 9-3-2017.

Method Summary

Modifier and Type	Method	Description
static long	readUnsignedInt(DataInput in)	Read an unsigned 32-bit integer from a data stream.
static long[][]	unpackDataArray(Object data, int wordSize, int columnCount)	Decode data that consists of a matrix of equally sized numbers packed into a one dimensional array.

Methods inherited from class java.lang.Object

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

Method Details

readUnsignedInt

public static long readUnsignedInt(DataInput in)
                            throws IOException

Read an unsigned 32-bit integer from a data stream.

Parameters:

in - The stream to read from.

Returns:

The next four bytes in the stream as an unsigned 32-bit integer.

Throws:

IOException - If the stream throws an IOException while reading the bytes.

unpackDataArray

public static long[][] unpackDataArray(Object data,
 int wordSize,
 int columnCount)

Decode data that consists of a matrix of equally sized numbers packed into a one dimensional array.

Parameters:

data - The data array to unpack.

wordSize - The word size in bits into which the numbers have been packed.

columnCount - The number of words per line or row of the original matrix.

Returns:

The unpacked data.