org.apache.cocoon.components.midi.xmidi
Class Utils

java.lang.Object
  org.apache.cocoon.components.midi.xmidi.Utils

public final class Utils
extends Object

Field Summary

static String

VERSION

Constructor Summary

Utils()

Method Summary

static String	baToHex(byte[] b, int strt, int end) convert byte array to hex string
static int	baToInt(byte[] b, int strt, int end) convert byte array to int
static String	baToString(byte[] b, int strt, int end) convert byte array to string (not hex)
static ByteLen	deltaToInt(byte[] b, int offset) convert delta time to byte array a delta time is expressed as a byte array, length unknown (4 or less)
static int	getNextHiOrd(byte[] dta, int offset)
static int	getPW(byte[] dta, int offset)
static int	getUnsignedByte(byte b) convert byte (unsigned) to int
static byte[]	hexToBa(String h, int len) convert hex string to byte array
static byte[]	intToBa(int n, int c) convert int to byte array of length c
static byte[]	intToDelta(byte[] t) convert byte array to delta time a delta time is expressed as a byte array, length unknown (4 or less)
static int	pow(int b, int e) compute b to the e power (b ** e)
static int	stringToInt(String s)

Methods inherited from class java.lang.Object

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

Field Detail

VERSION

public static final String VERSION

See Also:

Constant Field Values

Constructor Detail

Utils

public Utils()

Method Detail

hexToBa

public static byte[] hexToBa(String h,
                             int len)
                      throws ProcessingException

convert hex string to byte array

Throws:

ProcessingException

baToString

public static String baToString(byte[] b,
                                int strt,
                                int end)

convert byte array to string (not hex)

baToHex

public static String baToHex(byte[] b,
                             int strt,
                             int end)
                      throws ProcessingException

convert byte array to hex string

Throws:

ProcessingException

intToBa

public static byte[] intToBa(int n,
                             int c)
                      throws ProcessingException

convert int to byte array of length c

Throws:

ProcessingException

baToInt

public static int baToInt(byte[] b,
                          int strt,
                          int end)
                   throws ProcessingException

convert byte array to int

Throws:

ProcessingException

getUnsignedByte

public static int getUnsignedByte(byte b)

convert byte (unsigned) to int

deltaToInt

public static ByteLen deltaToInt(byte[] b,
                                 int offset)
                          throws ProcessingException

convert delta time to byte array a delta time is expressed as a byte array, length unknown (4 or less)

Throws:

ProcessingException

pow

public static int pow(int b,
                      int e)

compute b to the e power (b ** e)

getPW

public static int getPW(byte[] dta,
                        int offset)
                 throws ProcessingException

Throws:

ProcessingException

getNextHiOrd

public static int getNextHiOrd(byte[] dta,
                               int offset)
                        throws ProcessingException

Throws:

ProcessingException

intToDelta

public static byte[] intToDelta(byte[] t)
                         throws ProcessingException

convert byte array to delta time a delta time is expressed as a byte array, length unknown (4 or less)

Throws:

ProcessingException

stringToInt

public static int stringToInt(String s)