Java Code Examples for com.google.common.primitives.Longs#fromBytes()

The following examples show how to use com.google.common.primitives.Longs#fromBytes() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: Slice.java    From hive-dwrf with Apache License 2.0 6 votes vote down vote up 
/**
 * Fill the slice with the specified value;
 */
public void fill(byte value)
{
    int offset = 0;
    int length = size;
    long longValue = Longs.fromBytes(value, value, value, value, value, value, value, value);
    while (length >= SizeOf.SIZE_OF_LONG) {
        unsafe.putLong(base, address + offset, longValue);
        offset += SizeOf.SIZE_OF_LONG;
        length -= SizeOf.SIZE_OF_LONG;
    }

    while (length > 0) {
        unsafe.putByte(base, address + offset, value);
        offset++;
        length--;
    }
}
Example 2
Source File: LittleEndianByteArray.java    From zetasketch with Apache License 2.0 5 votes vote down vote up 
@Override
public long getLongLittleEndian(byte[] source, int offset) {
  return Longs.fromBytes(
      source[offset + 7],
      source[offset + 6],
      source[offset + 5],
      source[offset + 4],
      source[offset + 3],
      source[offset + 2],
      source[offset + 1],
      source[offset]);
}
Example 3
Source File: UUIDUtils.java    From SonarPet with GNU General Public License v3.0 5 votes vote down vote up 
public static UUID fromBytes(byte[] bytes) {
    Preconditions.checkNotNull(bytes, "Null bytes");
    Preconditions.checkArgument(bytes.length == 16, "Invalid length: %s", bytes.length);
    long msb = Longs.fromBytes(bytes[0], bytes[1], bytes[2], bytes[3],
            bytes[4], bytes[5], bytes[6], bytes[7]);
    long lsb = Longs.fromBytes(bytes[8], bytes[9], bytes[10], bytes[11],
            bytes[12], bytes[13], bytes[14], bytes[15]);
    return new UUID(msb, lsb);
}
Example 4
Source File: LittleEndianDataInputStream.java    From LevelDb2Avnil with GNU General Public License v2.0 5 votes vote down vote up 
@Override
public long readLong() throws IOException {
  byte b1 = readAndCheckByte();
  byte b2 = readAndCheckByte();
  byte b3 = readAndCheckByte();
  byte b4 = readAndCheckByte();
  byte b5 = readAndCheckByte();
  byte b6 = readAndCheckByte();
  byte b7 = readAndCheckByte();
  byte b8 = readAndCheckByte();

  return Longs.fromBytes(b8, b7, b6, b5, b4, b3, b2, b1);
}
Example 5
Source File: LittleEndianByteArray.java    From codebuff with BSD 2-Clause "Simplified" License 5 votes vote down vote up 
@Override
public long getLongLittleEndian(byte[] source, int offset) {
  return Longs.fromBytes(
      source[offset + 7],
      source[offset + 6],
      source[offset + 5],
      source[offset + 4],
      source[offset + 3],
      source[offset + 2],
      source[offset + 1],
      source[offset]);
}
Example 6
Source File: ObjectFileScrubbers.java    From buck with Apache License 2.0 5 votes vote down vote up 
public static long getLittleEndianLong(ByteBuffer buffer) {
  byte b1 = buffer.get();
  byte b2 = buffer.get();
  byte b3 = buffer.get();
  byte b4 = buffer.get();
  byte b5 = buffer.get();
  byte b6 = buffer.get();
  byte b7 = buffer.get();
  byte b8 = buffer.get();
  return Longs.fromBytes(b8, b7, b6, b5, b4, b3, b2, b1);
}
Example 7
Source File: LittleEndianDataInputStream.java    From codebuff with BSD 2-Clause "Simplified" License 5 votes vote down vote up 
/**
 * Reads a {@code long} as specified by {@link DataInputStream#readLong()}, except using
 * little-endian byte order.
 *
 * @return the next eight bytes of the input stream, interpreted as a {@code long} in
 *     little-endian byte order
 * @throws IOException if an I/O error occurs
 */

@CanIgnoreReturnValue // to skip some bytes
@Override
public long readLong() throws IOException {
  byte b1 = readAndCheckByte();
  byte b2 = readAndCheckByte();
  byte b3 = readAndCheckByte();
  byte b4 = readAndCheckByte();
  byte b5 = readAndCheckByte();
  byte b6 = readAndCheckByte();
  byte b7 = readAndCheckByte();
  byte b8 = readAndCheckByte();
  return Longs.fromBytes(b8, b7, b6, b5, b4, b3, b2, b1);
}
Example 8
Source File: LittleEndianByteArray.java    From codebuff with BSD 2-Clause "Simplified" License 5 votes vote down vote up 
@Override
public long getLongLittleEndian(byte[] source, int offset) {
  return Longs.fromBytes(
    source[offset + 7],
    source[offset + 6],
    source[offset + 5],
    source[offset + 4],
    source[offset + 3],
    source[offset + 2],
    source[offset + 1],
    source[offset]);
}
Example 9
Source File: ShortTermDuplicateMemory.java    From divolte-collector with Apache License 2.0 5 votes vote down vote up 
private boolean isProbablyDuplicate(final HashCode eventDigest) {
    // Our hashing algorithm produces 8 bytes:
    //  0: slot[0]
    //  1: slot[1]
    //  2: slot[2]
    //  3: slot[3]
    //  4:
    //  5:
    //  6:
    //  7:
    //  8: signature[0]
    //  9:  ..
    // 10:  ..
    // 11:  ..
    // 12:  ..
    // 13:  ..
    // 14:  ..
    // 15: signature[7]
    final byte[] hashBytes = eventDigest.asBytes();

    // We use the low int for the slot.
    final int slotSelector = Ints.fromBytes(hashBytes[0],
                                            hashBytes[1],
                                            hashBytes[2],
                                            hashBytes[3]);
    // We use the high long for the signature.
    final long signature = Longs.fromBytes(hashBytes[8],
                                           hashBytes[9],
                                           hashBytes[10],
                                           hashBytes[11],
                                           hashBytes[12],
                                           hashBytes[13],
                                           hashBytes[14],
                                           hashBytes[15]);

    final int slot = (slotSelector & Integer.MAX_VALUE) % memory.length;
    final boolean result = memory[slot] == signature;
    memory[slot] = signature;
    return result;
}
Example 10
Source File: LocalNoteList.java    From org.openntf.domino with Apache License 2.0 5 votes vote down vote up 
public LocalNoteCoordinate(final byte[] bytes, final LocalNoteList parentList) {
	parent_ = parentList;
	if (bytes.length >= BUFFER_SIZE) {
		this.x = Longs.fromBytes(bytes[0], bytes[1], bytes[2], bytes[3], bytes[4], bytes[5], bytes[6], bytes[7]);
		this.y = Longs.fromBytes(bytes[8], bytes[9], bytes[10], bytes[11], bytes[12], bytes[13], bytes[14], bytes[15]);
	} else {
		throw new IllegalArgumentException("Can't construct new LocalNoteCoordinate from byte length of " + bytes.length);
	}
}
Example 11
Source File: NoteCoordinate.java    From org.openntf.domino with Apache License 2.0 5 votes vote down vote up 
public static String getUnidFromBytes(final byte[] bytes) {
	if (bytes.length >= 16) {
		long first = Longs.fromBytes(bytes[0], bytes[1], bytes[2], bytes[3], bytes[4], bytes[5], bytes[6], bytes[7]);
		long last = Longs.fromBytes(bytes[8], bytes[9], bytes[10], bytes[11], bytes[12], bytes[13], bytes[14], bytes[15]);
		return getUnidFromLongs(first, last);
	} else {
		//TODO NTF Something here...
		throw new IllegalArgumentException("Cannot convert a byte array of length " + bytes.length + " to a unid");
	}
}
Example 12
Source File: LittleEndianDataInputStream.java    From codebuff with BSD 2-Clause "Simplified" License 5 votes vote down vote up 
/**
 * Reads a {@code long} as specified by {@link DataInputStream#readLong()}, except using
 * little-endian byte order.
 *
 * @return the next eight bytes of the input stream, interpreted as a {@code long} in
 *     little-endian byte order
 * @throws IOException if an I/O error occurs
 */

@CanIgnoreReturnValue // to skip some bytes
@Override
public long readLong() throws IOException {
  byte b1 = readAndCheckByte();
  byte b2 = readAndCheckByte();
  byte b3 = readAndCheckByte();
  byte b4 = readAndCheckByte();
  byte b5 = readAndCheckByte();
  byte b6 = readAndCheckByte();
  byte b7 = readAndCheckByte();
  byte b8 = readAndCheckByte();
  return Longs.fromBytes(b8, b7, b6, b5, b4, b3, b2, b1);
}
Example 13
Source File: JaegerExporterHandler.java    From opencensus-java with Apache License 2.0 5 votes vote down vote up 
private long traceIdLow() {
  return Longs.fromBytes(
      traceIdBuffer[8],
      traceIdBuffer[9],
      traceIdBuffer[10],
      traceIdBuffer[11],
      traceIdBuffer[12],
      traceIdBuffer[13],
      traceIdBuffer[14],
      traceIdBuffer[15]);
}
Example 14
Source File: JaegerExporterHandler.java    From opencensus-java with Apache License 2.0 5 votes vote down vote up 
private long traceIdHigh() {
  return Longs.fromBytes(
      traceIdBuffer[0],
      traceIdBuffer[1],
      traceIdBuffer[2],
      traceIdBuffer[3],
      traceIdBuffer[4],
      traceIdBuffer[5],
      traceIdBuffer[6],
      traceIdBuffer[7]);
}
Example 15
Source File: NoteCoordinate.java    From org.openntf.domino with Apache License 2.0 5 votes vote down vote up 
@Override
public void readExternal(final ObjectInput arg0) throws IOException, ClassNotFoundException {
	byte[] bytes = extreadbuffer_.get();
	arg0.read(bytes);
	this.db = Longs.fromBytes(bytes[0], bytes[1], bytes[2], bytes[3], bytes[4], bytes[5], bytes[6], bytes[7]);
	this.x = Longs.fromBytes(bytes[8], bytes[9], bytes[10], bytes[11], bytes[12], bytes[13], bytes[14], bytes[15]);
	this.y = Longs.fromBytes(bytes[16], bytes[17], bytes[18], bytes[19], bytes[20], bytes[21], bytes[22], bytes[23]);
}
Example 16
Source File: LittleEndianByteArray.java    From codebuff with BSD 2-Clause "Simplified" License 4 votes vote down vote up 
@Override
public long getLongLittleEndian(byte[] source, int offset) {
  return Longs.fromBytes(source[offset + 7], source[offset + 6], source[offset + 5], source[offset + 4], source[offset + 3], source[offset + 2], source[offset + 1], source[offset]);
}
Example 17
Source File: IndexTagCalc.java    From CuckooFilter4J with Apache License 2.0 4 votes vote down vote up 
private long longFromLowBytes(byte[] bytes) {
	return Longs.fromBytes(bytes[8], bytes[9], bytes[10], bytes[11], bytes[12], bytes[13], bytes[14], bytes[15]);
}
Example 18
Source File: IndexTagCalc.java    From CuckooFilter4J with Apache License 2.0 4 votes vote down vote up 
private long longFromHighBytes(byte[] bytes) {
	return Longs.fromBytes(bytes[0], bytes[1], bytes[2], bytes[3], bytes[4], bytes[5], bytes[6], bytes[7]);
}
Example 19
Source File: HDFSStorage.java    From attic-apex-malhar with Apache License 2.0 4 votes vote down vote up 
/**
 * @param b
 * @param startIndex
 * @return
 */
long byteArrayToLong(byte[] b, int startIndex)
{
  final byte b1 = 0;
  return Longs.fromBytes(b1, b1, b1, b1, b[3 + startIndex], b[2 + startIndex], b[1 + startIndex], b[startIndex]);
}
Example 20
Source File: Bytes.java    From hivemq-community-edition with Apache License 2.0 3 votes vote down vote up 
/**
 * Read a serialized long value for a given byte array
 *
 * @param buffer        A byte array that contains the serialized long value to read.
 * @param startPosition The position of the first bit of the long value in the buffer
 * @return The next 8 bits from startPosition as long
 * @throws IllegalArgumentException if the buffer is to small to read a long value from the start position
 */
public static long readLong(final byte[] buffer, final int startPosition) {
    if (startPosition + Long.BYTES > buffer.length) {
        throw new IllegalArgumentException("The provided array[" + buffer.length + "] is to small to read 8 bytes from start position " + startPosition);
    }
    return Longs.fromBytes(buffer[startPosition], buffer[startPosition + 1], buffer[startPosition + 2], buffer[startPosition + 3],
            buffer[startPosition + 4], buffer[startPosition + 5], buffer[startPosition + 6], buffer[startPosition + 7]);
}