Examples with ByteOrder java.nio.ByteOrder used on opensource projects

Example 6 with ByteOrder

use of java.nio.ByteOrder in project disunity by ata4.

the class UnityGUID method write.

@Override
public void write(DataWriter out) throws IOException {
    // write GUID as big-endian
    ByteOrder order = out.order();
    out.order(ByteOrder.BIG_ENDIAN);
    out.writeLong(uuid.getMostSignificantBits());
    out.writeLong(uuid.getLeastSignificantBits());
    out.order(order);
}

Example 7 with ByteOrder

use of java.nio.ByteOrder in project hazelcast by hazelcast.

the class EmptyObjectDataOutputTest method testEmptyMethodsDoNothing.

@Test
public void testEmptyMethodsDoNothing() throws IOException {
    ByteOrder byteOrder = out.getByteOrder();
    out.close();
    assertEquals(ByteOrder.BIG_ENDIAN, byteOrder);
}

Example 8 with ByteOrder

use of java.nio.ByteOrder in project jedis by xetorthio.

the class MurmurHash method hash64A.

public static long hash64A(ByteBuffer buf, int seed) {
    ByteOrder byteOrder = buf.order();
    buf.order(ByteOrder.LITTLE_ENDIAN);
    long m = 0xc6a4a7935bd1e995L;
    int r = 47;
    long h = seed ^ (buf.remaining() * m);
    long k;
    while (buf.remaining() >= 8) {
        k = buf.getLong();
        k *= m;
        k ^= k >>> r;
        k *= m;
        h ^= k;
        h *= m;
    }
    if (buf.remaining() > 0) {
        ByteBuffer finish = ByteBuffer.allocate(8).order(ByteOrder.LITTLE_ENDIAN);
        // for big-endian version, do this first:
        // finish.position(8-buf.remaining());
        finish.put(buf).rewind();
        h ^= finish.getLong();
        h *= m;
    }
    h ^= h >>> r;
    h *= m;
    h ^= h >>> r;
    buf.order(byteOrder);
    return h;
}

Example 9 with ByteOrder

use of java.nio.ByteOrder in project jedis by xetorthio.

the class MurmurHash method hash.

/**
   * Hashes the bytes in a buffer from the current position to the limit.
   * @param buf The bytes to hash.
   * @param seed The seed for the hash.
   * @return The 32 bit murmur hash of the bytes in the buffer.
   */
public static int hash(ByteBuffer buf, int seed) {
    // save byte order for later restoration
    ByteOrder byteOrder = buf.order();
    buf.order(ByteOrder.LITTLE_ENDIAN);
    int m = 0x5bd1e995;
    int r = 24;
    int h = seed ^ buf.remaining();
    int k;
    while (buf.remaining() >= 4) {
        k = buf.getInt();
        k *= m;
        k ^= k >>> r;
        k *= m;
        h *= m;
        h ^= k;
    }
    if (buf.remaining() > 0) {
        ByteBuffer finish = ByteBuffer.allocate(4).order(ByteOrder.LITTLE_ENDIAN);
        // for big-endian version, use this first:
        // finish.position(4-buf.remaining());
        finish.put(buf).rewind();
        h ^= finish.getInt();
        h *= m;
    }
    h ^= h >>> 13;
    h *= m;
    h ^= h >>> 15;
    buf.order(byteOrder);
    return h;
}

Example 10 with ByteOrder

use of java.nio.ByteOrder in project cassandra by apache.

the class SafeMemoryWriter method reallocate.

@Override
protected void reallocate(long count) {
    long newCapacity = calculateNewSize(count);
    if (newCapacity != capacity()) {
        long position = length();
        ByteOrder order = buffer.order();
        SafeMemory oldBuffer = memory;
        memory = this.memory.copy(newCapacity);
        buffer = tailBuffer(memory);
        int newPosition = (int) (position - tailOffset(memory));
        buffer.position(newPosition);
        buffer.order(order);
        oldBuffer.free();
    }
}