org.mbari.siam.utils
Class ByteUtility

java.lang.Object
  org.mbari.siam.utils.ByteUtility

public final class ByteUtility
extends java.lang.Object

Utility Methods for byte arrays/strings

Constructor Summary

ByteUtility()

Method Summary

static boolean	byteArrayEquals(byte[] firstArray, byte[] secondArray) Compare two byte arrays assumed to be the same length (or the secondArray longer firstArray) returns true if all characters match, false otherwise
static boolean	byteArrayEquals(byte[] firstArray, byte[] secondArray, int len) Compare first len characters of two byte arrays returns true if all characters match, false otherwise
static int	byteArrayEquals(byte[] firstArray, int firstOffset, byte[] secondArray, int secondOffset, int len) Compare two byte arrays returns 0 if all characters match, -1 if first mismatch < ,1 if first mismatch >
static java.lang.String	bytesToHexString(byte[] b) return a hex ASCII String representation of the bytes in the byte array
static int	bytesToInt(byte[] bytes) Convert a byte[] to an int assumming the bytes are in network byte order
static int	bytesToInt(byte[] bytes, int offset) Convert a byte[] to an int assumming the bytes are in network byte order
static long	bytesToLong(byte[] bytes) Convert a byte[] to a long assumming the bytes are in network byte order
static long	bytesToLong(byte[] bytes, int offset) Convert a byte[] to a long assumming the bytes are in network byte order
static boolean	checkByteArrayLen(byte[] buf, int len)
static boolean	checkByteArrayOffset(byte[] buf, int offset)
static boolean	checkByteArrayRange(byte[] buf, int len, int offset)
static byte[]	concatByteArrays(byte[] firstBuf, byte[] secondBuf) Append 'buf' to 'target' Starts at index 0 Results in buffer size buf.length+target.length
static byte[]	concatByteArrays(byte[] firstBuf, int firstLen, byte[] secondBuf, int secondLen) Append 'buf' to 'target' Starts at index 0 Results in buffer size bufLen+ targetLength
static byte[]	concatByteArrays(byte[] firstBuf, int firstOffset, int firstLen, byte[] secondBuf, int secondOffset, int secondLen) Append 'buf' to 'target' Starts at index iBuf of buf, iTarget of target Results in buffer size bufLen+ targetLength
static void	fillByteArray(byte[] array, char fillChar) Fill byte array with a character
static void	fillByteSubArray(byte[] array, int fromIndex, int toIndex, char fillChar) Fill part of byte array with a character
static byte[]	getByteSubArray(byte[] b, int offset, int len) Returns byte array containing the bytes from b[offset] to b[offset+len]
static byte[]	intToBytes(int value) Convert an int to a byte[] in network byte order
static byte[]	longToBytes(long value) Convert a long to a byte[] in network byte order

Methods inherited from class java.lang.Object

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

Constructor Detail

ByteUtility

public ByteUtility()

Method Detail

checkByteArrayLen

public static boolean checkByteArrayLen(byte[] buf,
                                        int len)

checkByteArrayOffset

public static boolean checkByteArrayOffset(byte[] buf,
                                           int offset)

checkByteArrayRange

public static boolean checkByteArrayRange(byte[] buf,
                                          int len,
                                          int offset)

byteArrayEquals

public static boolean byteArrayEquals(byte[] firstArray,
                                      byte[] secondArray)
                               throws java.lang.ArrayIndexOutOfBoundsException

Compare two byte arrays assumed to be the same length (or the secondArray longer firstArray) returns true if all characters match, false otherwise

Throws:

java.lang.ArrayIndexOutOfBoundsException

byteArrayEquals

public static boolean byteArrayEquals(byte[] firstArray,
                                      byte[] secondArray,
                                      int len)
                               throws java.lang.ArrayIndexOutOfBoundsException

Compare first len characters of two byte arrays returns true if all characters match, false otherwise

Throws:

java.lang.ArrayIndexOutOfBoundsException

byteArrayEquals

public static int byteArrayEquals(byte[] firstArray,
                                  int firstOffset,
                                  byte[] secondArray,
                                  int secondOffset,
                                  int len)
                           throws java.lang.ArrayIndexOutOfBoundsException

Compare two byte arrays returns 0 if all characters match, -1 if first mismatch < ,1 if first mismatch >

Throws:

java.lang.ArrayIndexOutOfBoundsException

fillByteArray

public static void fillByteArray(byte[] array,
                                 char fillChar)

Fill byte array with a character

fillByteSubArray

public static void fillByteSubArray(byte[] array,
                                    int fromIndex,
                                    int toIndex,
                                    char fillChar)

Fill part of byte array with a character

getByteSubArray

public static byte[] getByteSubArray(byte[] b,
                                     int offset,
                                     int len)
                              throws java.lang.ArrayIndexOutOfBoundsException

Returns byte array containing the bytes from b[offset] to b[offset+len]

Throws:

java.lang.ArrayIndexOutOfBoundsException

concatByteArrays

public static byte[] concatByteArrays(byte[] firstBuf,
                                      byte[] secondBuf)
                               throws java.lang.ArrayIndexOutOfBoundsException

Append 'buf' to 'target' Starts at index 0 Results in buffer size buf.length+target.length

Throws:

java.lang.ArrayIndexOutOfBoundsException

concatByteArrays

public static byte[] concatByteArrays(byte[] firstBuf,
                                      int firstLen,
                                      byte[] secondBuf,
                                      int secondLen)
                               throws java.lang.ArrayIndexOutOfBoundsException

Append 'buf' to 'target' Starts at index 0 Results in buffer size bufLen+ targetLength

Throws:

java.lang.ArrayIndexOutOfBoundsException

concatByteArrays

public static byte[] concatByteArrays(byte[] firstBuf,
                                      int firstOffset,
                                      int firstLen,
                                      byte[] secondBuf,
                                      int secondOffset,
                                      int secondLen)
                               throws java.lang.ArrayIndexOutOfBoundsException

Append 'buf' to 'target' Starts at index iBuf of buf, iTarget of target Results in buffer size bufLen+ targetLength

Throws:

java.lang.ArrayIndexOutOfBoundsException

intToBytes

public static byte[] intToBytes(int value)

Convert an int to a byte[] in network byte order

longToBytes

public static byte[] longToBytes(long value)

Convert a long to a byte[] in network byte order

bytesToInt

public static int bytesToInt(byte[] bytes)
                      throws java.lang.ArrayIndexOutOfBoundsException

Convert a byte[] to an int assumming the bytes are in network byte order

Throws:

java.lang.ArrayIndexOutOfBoundsException

bytesToLong

public static long bytesToLong(byte[] bytes)
                        throws java.lang.ArrayIndexOutOfBoundsException

Convert a byte[] to a long assumming the bytes are in network byte order

Throws:

java.lang.ArrayIndexOutOfBoundsException

bytesToInt

public static int bytesToInt(byte[] bytes,
                             int offset)
                      throws java.lang.ArrayIndexOutOfBoundsException

Convert a byte[] to an int assumming the bytes are in network byte order

Throws:

java.lang.ArrayIndexOutOfBoundsException

bytesToLong

public static long bytesToLong(byte[] bytes,
                               int offset)
                        throws java.lang.ArrayIndexOutOfBoundsException

Convert a byte[] to a long assumming the bytes are in network byte order

Throws:

java.lang.ArrayIndexOutOfBoundsException

bytesToHexString

public static java.lang.String bytesToHexString(byte[] b)

return a hex ASCII String representation of the bytes in the byte array