/** * Interpret the binary representation of a long. * * @param bytes The bytes to interpret. * * @return The long */ public static long asLong(byte[] bytes) { return asLong(bytes, 0); }
public CustomVersionOneStrategy() { // generate the "most significant bits" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ byte[] hiBits = new byte[8]; // use address as first 32 bits (8 * 4 bytes) System.arraycopy( Helper.getAddressBytes(), 0, hiBits, 0, 4 ); // use the "jvm identifier" as the next 32 bits System.arraycopy( Helper.getJvmIdentifierBytes(), 0, hiBits, 4, 4 ); // set the version (rfc term) appropriately hiBits[6] &= 0x0f; hiBits[6] |= 0x10; mostSignificantBits = BytesHelper.asLong( hiBits ); } @Override
public static long generateLeastSignificantBits(long seed) { byte[] loBits = new byte[8]; short hiTime = (short) ( seed >>> 32 ); int loTime = (int) seed; System.arraycopy( BytesHelper.fromShort( hiTime ), 0, loBits, 0, 2 ); System.arraycopy( BytesHelper.fromInt( loTime ), 0, loBits, 2, 4 ); System.arraycopy( Helper.getCountBytes(), 0, loBits, 6, 2 ); loBits[0] &= 0x3f; loBits[0] |= ((byte)2 << (byte)6 ); return BytesHelper.asLong( loBits ); }
System.out.println( " lsb : " + BytesHelper.toBinaryString( BytesHelper.asLong( loBits ) ) ); System.out.println( " ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" ); long leastSignificantBits = BytesHelper.asLong( loBits ); System.out.println( " lsb : " + BytesHelper.toBinaryString( leastSignificantBits ) ); System.out.println( " ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" );
/** * Interpret the binary representation of a long. * * @param bytes The bytes to interpret. * * @return The long */ public static long asLong(byte[] bytes) { return asLong(bytes, 0); }
public CustomVersionOneStrategy() { // generate the "most significant bits" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ byte[] hiBits = new byte[8]; // use address as first 32 bits (8 * 4 bytes) System.arraycopy( Helper.getAddressBytes(), 0, hiBits, 0, 4 ); // use the "jvm identifier" as the next 32 bits System.arraycopy( Helper.getJvmIdentifierBytes(), 0, hiBits, 4, 4 ); // set the version (rfc term) appropriately hiBits[6] &= 0x0f; hiBits[6] |= 0x10; mostSignificantBits = BytesHelper.asLong( hiBits ); }
public CustomVersionOneStrategy() { // generate the "most significant bits" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ byte[] hiBits = new byte[8]; // use address as first 32 bits (8 * 4 bytes) System.arraycopy( Helper.getAddressBytes(), 0, hiBits, 0, 4 ); // use the "jvm identifier" as the next 32 bits System.arraycopy( Helper.getJvmIdentifierBytes(), 0, hiBits, 4, 4 ); // set the version (rfc term) appropriately hiBits[6] &= 0x0f; hiBits[6] |= 0x10; mostSignificantBits = BytesHelper.asLong( hiBits ); }
public CustomVersionOneStrategy() { // generate the "most significant bits" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ byte[] hiBits = new byte[8]; // use address as first 32 bits (8 * 4 bytes) System.arraycopy( Helper.getAddressBytes(), 0, hiBits, 0, 4 ); // use the "jvm identifier" as the next 32 bits System.arraycopy( Helper.getJvmIdentifierBytes(), 0, hiBits, 4, 4 ); // set the version (rfc term) appropriately hiBits[6] &= 0x0f; hiBits[6] |= 0x10; mostSignificantBits = BytesHelper.asLong( hiBits ); } @Override
public static long generateLeastSignificantBits(long seed) { byte[] loBits = new byte[8]; short hiTime = (short) ( seed >>> 32 ); int loTime = (int) seed; System.arraycopy( BytesHelper.fromShort( hiTime ), 0, loBits, 0, 2 ); System.arraycopy( BytesHelper.fromInt( loTime ), 0, loBits, 2, 4 ); System.arraycopy( Helper.getCountBytes(), 0, loBits, 6, 2 ); loBits[0] &= 0x3f; loBits[0] |= ((byte)2 << (byte)6 ); return BytesHelper.asLong( loBits ); }
public static long generateLeastSignificantBits(long seed) { byte[] loBits = new byte[8]; short hiTime = (short) ( seed >>> 32 ); int loTime = (int) seed; System.arraycopy( BytesHelper.fromShort( hiTime ), 0, loBits, 0, 2 ); System.arraycopy( BytesHelper.fromInt( loTime ), 0, loBits, 2, 4 ); System.arraycopy( Helper.getCountBytes(), 0, loBits, 6, 2 ); loBits[0] &= 0x3f; loBits[0] |= ((byte)2 << (byte)6); return BytesHelper.asLong( loBits ); }
public static long generateLeastSignificantBits(long seed) { byte[] loBits = new byte[8]; short hiTime = (short) ( seed >>> 32 ); int loTime = (int) seed; System.arraycopy( BytesHelper.fromShort( hiTime ), 0, loBits, 0, 2 ); System.arraycopy( BytesHelper.fromInt( loTime ), 0, loBits, 2, 4 ); System.arraycopy( Helper.getCountBytes(), 0, loBits, 6, 2 ); loBits[0] &= 0x3f; loBits[0] |= ((byte)2 << (byte)6); return BytesHelper.asLong( loBits ); }
System.out.println( " lsb : " + BytesHelper.toBinaryString( BytesHelper.asLong( loBits ) ) ); System.out.println( " ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" ); long leastSignificantBits = BytesHelper.asLong( loBits ); System.out.println( " lsb : " + BytesHelper.toBinaryString( leastSignificantBits ) ); System.out.println( " ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" );
System.out.println( " lsb : " + BytesHelper.toBinaryString( BytesHelper.asLong( loBits ) ) ); System.out.println( " ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" ); long leastSignificantBits = BytesHelper.asLong( loBits ); System.out.println( " lsb : " + BytesHelper.toBinaryString( leastSignificantBits ) ); System.out.println( " ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" );
System.out.println( " lsb : " + BytesHelper.toBinaryString( BytesHelper.asLong( loBits ) ) ); System.out.println( " ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" ); long leastSignificantBits = BytesHelper.asLong( loBits ); System.out.println( " lsb : " + BytesHelper.toBinaryString( leastSignificantBits ) ); System.out.println( " ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" );