Byte [] short [] int [] long [] array data conversion in android

Byte [] short [] int [] long [] array data conversion in android

Import java. nio. byteOrder; public class BytesTransUtils {private String TAG = "BytesTransUtils"; private static BytesTransUtils instance = null; private BytesTransUtils () {// Log. I (TAG, "instance BytesTransUtils");} public static BytesTransUtils getInstance () {if (instance = null) {instance = new BytesTransUtils ();} return instance ;} public boolean testCPU () {if (ByteOrder. nativeOrder () = ByteOrder. BIG_ENDIAN) {// System. out. println ("is big ending"); return true;} else {// System. out. println ("is little ending"); return false ;}} public byte [] getBytes (short s, boolean bBigEnding) {byte [] buf = new byte [2]; if (bBigEnding) {for (int I = buf. length-1; I> = 0; I --) {buf [I] = (byte) (s & 0x00ff); s >>= 8 ;}} else {for (int I = 0; I <buf. length; I ++) {buf [I] = (byte) (s & 0x0 0ff); s >>= 8 ;}} return buf;} public byte [] getBytes (int s, boolean bBigEnding) {byte [] buf = new byte [4]; if (bBigEnding) {for (int I = buf. length-1; I> = 0; I --) {buf [I] = (byte) (s & 0x000000ff); s >>= 8 ;}} else {System. out. println ("1"); for (int I = 0; I <buf. length; I ++) {buf [I] = (byte) (s & 0x000000ff); s >>= 8 ;}} return buf ;} public byte [] getBytes (long s, boolean bBigEndin G) {byte [] buf = new byte [8]; if (bBigEnding) {for (int I = buf. length-1; I> = 0; I --) {buf [I] = (byte) (s & 0x00000000000000ff); s >>=8 ;}} else {for (int I = 0; I <buf. length; I ++) {buf [I] = (byte) (s & 0x00000000000000ff); s >>=8 ;}} return buf ;} public short getShort (byte [] buf, boolean bBigEnding) {if (buf = null) {throw new IllegalArgumentException ("byte array is null! ");} If (buf. length> 2) {throw new IllegalArgumentException (" byte array size> 2! ");} Short r = 0; if (bBigEnding) {for (int I = 0; I <buf. length; I ++) {r <= 8; r | = (buf [I] & 0x00ff) ;}} else {for (int I = buf. length-1; I >= 0; I --) {r <= 8; r | = (buf [I] & 0x00ff) ;}} return r ;} public int getInt (byte [] buf, boolean bBigEnding) {if (buf = null) {throw new IllegalArgumentException ("byte array is null! ");} If (buf. length> 4) {throw new IllegalArgumentException (" byte array size> 4! ");} Int r = 0; if (bBigEnding) {for (int I = 0; I <buf. length; I ++) {r <= 8; r | = (buf [I] & 0x000000ff) ;}} else {for (int I = buf. length-1; I >= 0; I --) {r <= 8; r |=( buf [I] & 0x000000ff) ;}} return r ;} public long getLong (byte [] buf, boolean bBigEnding) {if (buf = null) {throw new IllegalArgumentException ("byte array is null! ");} If (buf. length> 8) {throw new IllegalArgumentException (" byte array size> 8! ");} Long r = 0; if (bBigEnding) {for (int I = 0; I <buf. length; I ++) {r <= 8; r | = (buf [I] & 0x00000000000000ff) ;}} else {for (int I = buf. length-1; I >= 0; I --) {r <= 8; r |=( buf [I] & 0x00000000000000ff) ;}} return r ;} /* -------------------------------------------------------- * // * a simple encapsulation of the conversion * // * optional */public byte [] getBytes (int I) {return getBytes (I, this. testCPU ();} public byte [] getBytes (short s) {return getBytes (s, this. testCPU ();} public byte [] getBytes (long l) {return getBytes (l, this. testCPU ();} public int getInt (byte [] buf) {return getInt (buf, this. testCPU ();} public short getShort (byte [] buf) {return getShort (buf, this. testCPU ();} public long getLong (byte [] buf) {return getLong (buf, this. testCPU ());} /*************************************** */public short [] Bytes2Shorts (byte [] buf) {byte bLength = 2; short [] s = new short [buf. length/bLength]; for (int iLoop = 0; iLoop <s. length; iLoop ++) {byte [] temp = new byte [bLength]; for (int jLoop = 0; jLoop <bLength; jLoop ++) {temp [jLoop] = buf [iLoop * bLength + jLoop];} s [iLoop] = getShort (temp);} return s ;} public byte [] Shorts2Bytes (short [] s) {byte bLength = 2; byte [] buf = new byte [s. length * bLength]; for (int iLoop = 0; iLoop <s. length; iLoop ++) {byte [] temp = getBytes (s [iLoop]); for (int jLoop = 0; jLoop <bLength; jLoop ++) {buf [iLoop * bLength + jLoop] = temp [jLoop] ;}} return buf ;} /*************************************** */public int [] Bytes2Ints (byte [] buf) {byte bLength = 4; int [] s = new int [buf. length/bLength]; for (int iLoop = 0; iLoop <s. length; iLoop ++) {byte [] temp = new byte [bLength]; for (int jLoop = 0; jLoop <bLength; jLoop ++) {temp [jLoop] = buf [iLoop * bLength + jLoop];} s [iLoop] = getInt (temp); System. out. println ("2out->" + s [iLoop]);} return s;} public byte [] Ints2Bytes (int [] s) {byte bLength = 4; byte [] buf = new byte [s. length * bLength]; for (int iLoop = 0; iLoop <s. length; iLoop ++) {byte [] temp = getBytes (s [iLoop]); System. out. println ("1out->" + s [iLoop]); for (int jLoop = 0; jLoop <bLength; jLoop ++) {buf [iLoop * bLength + jLoop] = temp [jLoop] ;}} return buf ;} /*************************************** */public long [] Bytes2Longs (byte [] buf) {byte bLength = 8; long [] s = new long [buf. length/bLength]; for (int iLoop = 0; iLoop <s. length; iLoop ++) {byte [] temp = new byte [bLength]; for (int jLoop = 0; jLoop <bLength; jLoop ++) {temp [jLoop] = buf [iLoop * bLength + jLoop];} s [iLoop] = getLong (temp);} return s ;} public byte [] Longs2Bytes (long [] s) {byte bLength = 8; byte [] buf = new byte [s. length * bLength]; for (int iLoop = 0; iLoop <s. length; iLoop ++) {byte [] temp = getBytes (s [iLoop]); for (int jLoop = 0; jLoop <bLength; jLoop ++) {buf [iLoop * bLength + jLoop] = temp [jLoop] ;}} return buf ;}}