AbstractUnsafeSwappedByteBuf Class — netty Architecture

Source Code

buffer/src/main/java/io/netty/buffer/AbstractUnsafeSwappedByteBuf.java lines 27–171

abstract class AbstractUnsafeSwappedByteBuf extends SwappedByteBuf {
    private final boolean nativeByteOrder;
    private final AbstractByteBuf wrapped;

    AbstractUnsafeSwappedByteBuf(AbstractByteBuf buf) {
        super(buf);
        assert PlatformDependent.isUnaligned();
        wrapped = buf;
        nativeByteOrder = BIG_ENDIAN_NATIVE_ORDER == (order() == ByteOrder.BIG_ENDIAN);
    }

    @Override
    public final long getLong(int index) {
        wrapped.checkIndex(index, 8);
        long v = _getLong(wrapped, index);
        return nativeByteOrder ? v : Long.reverseBytes(v);
    }

    @Override
    public final float getFloat(int index) {
        return Float.intBitsToFloat(getInt(index));
    }

    @Override
    public final double getDouble(int index) {
        return Double.longBitsToDouble(getLong(index));
    }

    @Override
    public final char getChar(int index) {
        return (char) getShort(index);
    }

    @Override
    public final long getUnsignedInt(int index) {
        return getInt(index) & 0xFFFFFFFFL;
    }

    @Override
    public final int getInt(int index) {
        wrapped.checkIndex(index, 4);
        int v = _getInt(wrapped, index);
        return nativeByteOrder ? v : Integer.reverseBytes(v);
    }

    @Override
    public final int getUnsignedShort(int index) {
        return getShort(index) & 0xFFFF;
    }

    @Override
    public final short getShort(int index) {
        wrapped.checkIndex(index, 2);
        short v = _getShort(wrapped, index);
        return nativeByteOrder ? v : Short.reverseBytes(v);
    }

    @Override
    public final ByteBuf setShort(int index, int value) {
        wrapped.checkIndex(index, 2);
        _setShort(wrapped, index, nativeByteOrder ? (short) value : Short.reverseBytes((short) value));
        return this;
    }

    @Override
    public final ByteBuf setInt(int index, int value) {
        wrapped.checkIndex(index, 4);
        _setInt(wrapped, index, nativeByteOrder ? value : Integer.reverseBytes(value));
        return this;
    }

    @Override
    public final ByteBuf setLong(int index, long value) {
        wrapped.checkIndex(index, 8);
        _setLong(wrapped, index, nativeByteOrder ? value : Long.reverseBytes(value));
        return this;
    }

    @Override
    public final ByteBuf setChar(int index, int value) {
        setShort(index, value);