Java Code Examples for io.netty.buffer.Unpooled.EMPTY_BUFFER

The following are Jave code examples for showing how to use EMPTY_BUFFER of the io.netty.buffer.Unpooled class. You can vote up the examples you like. Your votes will be used in our system to get more good examples.
Example 1
Project: elasticsearch_my   File: Netty4Utils.java   Source Code and License Vote up 6 votes
/**
 * Turns the given BytesReference into a ByteBuf. Note: the returned ByteBuf will reference the internal
 * pages of the BytesReference. Don't free the bytes of reference before the ByteBuf goes out of scope.
 */
public static ByteBuf toByteBuf(final BytesReference reference) {
    if (reference.length() == 0) {
        return Unpooled.EMPTY_BUFFER;
    }
    if (reference instanceof ByteBufBytesReference) {
        return ((ByteBufBytesReference) reference).toByteBuf();
    } else {
        final BytesRefIterator iterator = reference.iterator();
        // usually we have one, two, or three components from the header, the message, and a buffer
        final List<ByteBuf> buffers = new ArrayList<>(3);
        try {
            BytesRef slice;
            while ((slice = iterator.next()) != null) {
                buffers.add(Unpooled.wrappedBuffer(slice.bytes, slice.offset, slice.length));
            }
            final CompositeByteBuf composite = Unpooled.compositeBuffer(buffers.size());
            composite.addComponents(true, buffers);
            return composite;
        } catch (IOException ex) {
            throw new AssertionError("no IO happens here", ex);
        }
    }
}
 
Example 2
Project: qonduit   File: NonSslRedirectHandler.java   Source Code and License Vote up 6 votes
@Override
protected ChannelHandler newNonSslHandler(ChannelHandlerContext context) {
    return new ChannelInboundHandlerAdapter() {

        private HttpResponseEncoder encoder = new HttpResponseEncoder();

        @Override
        public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
            LOG.trace("Received non-SSL request, returning redirect");
            FullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1,
                    HttpResponseStatus.MOVED_PERMANENTLY, Unpooled.EMPTY_BUFFER);
            response.headers().set(Names.LOCATION, redirectAddress);
            LOG.trace(Constants.LOG_RETURNING_RESPONSE, response);
            encoder.write(ctx, response, ctx.voidPromise());
            ctx.flush();
        }
    };
}
 
Example 3
Project: hekate   File: NettyMessageReadWritTest.java   Source Code and License Vote up 4 votes
@Test
public void testMarkSupported() throws IOException {
    NettyMessage reader = new NettyMessage(Unpooled.EMPTY_BUFFER, fakeCodec);

    assertFalse(reader.markSupported());
}
 
Example 4
Project: hekate   File: NettyMessageReadWritTest.java   Source Code and License Vote up 4 votes
@Test(expected = UnsupportedOperationException.class)
public void testMark() throws IOException {
    NettyMessage reader = new NettyMessage(Unpooled.EMPTY_BUFFER, fakeCodec);

    reader.mark(1);
}
 
Example 5
Project: hekate   File: NettyMessageReadWritTest.java   Source Code and License Vote up 4 votes
@Test(expected = UnsupportedOperationException.class)
public void testReset() throws IOException {
    NettyMessage reader = new NettyMessage(Unpooled.EMPTY_BUFFER, fakeCodec);

    reader.reset();
}
 
Example 6
Project: hadoop   File: WebHdfsHandler.java   Source Code and License Vote up 4 votes
private static void writeContinueHeader(ChannelHandlerContext ctx) {
  DefaultHttpResponse r = new DefaultFullHttpResponse(HTTP_1_1, CONTINUE,
    Unpooled.EMPTY_BUFFER);
  ctx.writeAndFlush(r);
}