Example usage for io.netty.buffer ByteBuf release

Introduction

In this page you can find the example usage for io.netty.buffer ByteBuf release.

Prototype

boolean release();

Source Link

Document

Decreases the reference count by 1 and deallocates this object if the reference count reaches at 0 .

Usage

From source file:com.informatica.surf.sources.http.HttpListener.java

License:Apache License

public byte[] nextMessage() throws InterruptedException {
    _logger.debug("Checking queued messages");
    ByteBuf buf = _messageQueue.take();
    byte b[] = new byte[buf.readableBytes()];
    _logger.debug("Readable bytes = {}", b.length);
    buf.readBytes(b);/*  w w w .  j  a va  2s. c o  m*/
    buf.release();

    return b;
}

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From source file:com.informatica.surf.sources.http.HttpServerHandler.java

License:Apache License

private static void sendHttpResponse(ChannelHandlerContext ctx, FullHttpRequest req, FullHttpResponse res) {
    // Generate an error page if response getStatus code is not OK (200).
    if (res.getStatus().code() != 200) {
        ByteBuf buf = Unpooled.copiedBuffer(res.getStatus().toString(), CharsetUtil.UTF_8);
        res.content().writeBytes(buf);/*from  ww w.  j a v  a 2 s .  c  o  m*/
        buf.release();
        setContentLength(res, res.content().readableBytes());
    } else {
        setContentLength(res, 0);
    }

    // Send the response and close the connection if necessary.
    ChannelFuture f = ctx.channel().writeAndFlush(res);
    if (!isKeepAlive(req) || res.getStatus().code() != 200) {
        f.addListener(ChannelFutureListener.CLOSE);
    }
}

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From source file:com.jjneko.jjnet.networking.http.server.WebSocketHttpServerHandler.java

License:Apache License

private static void sendHttpResponse(ChannelHandlerContext ctx, FullHttpRequest req, FullHttpResponse res) {
    // Generate an error page if response getStatus code is not OK (200).
    if (res.status().code() != 200) {
        ByteBuf buf = Unpooled.copiedBuffer(res.status().toString(), CharsetUtil.UTF_8);
        res.content().writeBytes(buf);//from ww w.  j a va 2  s  . c  om
        buf.release();
        HttpHeaders.setContentLength(res, res.content().readableBytes());
    }

    // Send the response and close the connection if necessary.
    ChannelFuture f = ctx.channel().writeAndFlush(res);
    if (!HttpHeaders.isKeepAlive(req) || res.status().code() != 200) {
        f.addListener(ChannelFutureListener.CLOSE);
    }
}

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From source file:com.jjzhk.Chapter11.websocket.WebSocketServerHandler.java

License:Apache License

private static void sendHttpResponse(ChannelHandlerContext ctx, FullHttpRequest req, FullHttpResponse res) {
    // ?????/*from ww w  .ja  v a  2 s. co  m*/
    if (res.getStatus().code() != 200) {
        ByteBuf buf = Unpooled.copiedBuffer(res.getStatus().toString(), CharsetUtil.UTF_8);
        res.content().writeBytes(buf);
        buf.release();
        setContentLength(res, res.content().readableBytes());
    }

    // ??Keep-Alive?
    ChannelFuture f = ctx.channel().writeAndFlush(res);
    if (!isKeepAlive(req) || res.getStatus().code() != 200) {
        f.addListener(ChannelFutureListener.CLOSE);
    }
}

---

From source file:com.king.platform.net.http.netty.response.HttpClientResponseHandler.java

License:Apache License

public void handleResponse(ChannelHandlerContext ctx, Object msg) throws Exception {
    HttpRequestContext httpRequestContext = ctx.channel().attr(HttpRequestContext.HTTP_REQUEST_ATTRIBUTE_KEY)
            .get();//w  w w  .j a  v a 2s  .  co m

    if (httpRequestContext == null) {
        logger.trace("httpRequestContext is null, msg was {}", msg);
        return;
    }

    NettyHttpClientResponse nettyHttpClientResponse = httpRequestContext.getNettyHttpClientResponse();

    RequestEventBus requestEventBus = nettyHttpClientResponse.getRequestEventBus();

    ResponseBodyConsumer responseBodyConsumer = nettyHttpClientResponse.getResponseBodyConsumer();

    try {

        if (msg instanceof HttpResponse) {
            requestEventBus.triggerEvent(Event.TOUCH);

            logger.trace("read HttpResponse");
            HttpResponse response = (HttpResponse) msg;

            HttpResponseStatus httpResponseStatus = response.getStatus();
            HttpHeaders httpHeaders = response.headers();

            nettyHttpClientResponse.setHttpResponseStatus(httpResponseStatus);
            nettyHttpClientResponse.setHttpHeaders(httpHeaders);

            requestEventBus.triggerEvent(Event.onReceivedStatus, httpResponseStatus);
            requestEventBus.triggerEvent(Event.onReceivedHeaders, httpHeaders);

            httpRequestContext.getTimeRecorder().readResponseHttpHeaders();

            if (httpRequestContext.isFollowRedirects()
                    && httpRedirector.isRedirectResponse(httpResponseStatus)) {
                httpRedirector.redirectRequest(httpRequestContext, httpHeaders);
                return;
            }

            if (response.getStatus().code() == 100) {
                requestEventBus.triggerEvent(Event.WRITE_BODY, ctx);
                return;
            }

            String contentLength = httpHeaders.get(HttpHeaders.Names.CONTENT_LENGTH);

            String contentType = httpHeaders.get(HttpHeaders.Names.CONTENT_TYPE);
            String charset = StringUtil.substringAfter(contentType, '=');
            if (charset == null) {
                charset = StandardCharsets.ISO_8859_1.name();
            }

            contentType = StringUtil.substringBefore(contentType, ';');

            if (contentLength != null) {
                long length = Long.parseLong(contentLength);
                responseBodyConsumer.onBodyStart(contentType, charset, length);
            } else {
                responseBodyConsumer.onBodyStart(contentType, charset, 0);
            }

            httpRequestContext.getTimeRecorder().responseBodyStart();

        } else if (msg instanceof HttpContent) {
            logger.trace("read HttpContent");
            requestEventBus.triggerEvent(Event.TOUCH);

            HttpResponseStatus httpResponseStatus = nettyHttpClientResponse.getHttpResponseStatus();
            HttpHeaders httpHeaders = nettyHttpClientResponse.getHttpHeaders();

            if (httpResponseStatus == null || (httpRequestContext.isFollowRedirects()
                    && httpRedirector.isRedirectResponse(httpResponseStatus))) {
                return;
            }

            if (msg == LastHttpContent.EMPTY_LAST_CONTENT
                    && nettyHttpClientResponse.getHttpResponseStatus().code() == 100) {
                logger.trace("read EMPTY_LAST_CONTENT with status code 100");
                return;
            }

            HttpContent chunk = (HttpContent) msg;

            ByteBuf content = chunk.content();

            content.resetReaderIndex();

            int readableBytes = content.readableBytes();

            if (readableBytes > 0) {
                ByteBuffer byteBuffer = content.nioBuffer();

                responseBodyConsumer.onReceivedContentPart(byteBuffer);
                requestEventBus.triggerEvent(Event.onReceivedContentPart, readableBytes, content);

            }

            content.release();

            requestEventBus.triggerEvent(Event.TOUCH);

            if (chunk instanceof LastHttpContent) {

                responseBodyConsumer.onCompletedBody();

                requestEventBus.triggerEvent(Event.onReceivedCompleted, httpResponseStatus, httpHeaders);
                httpRequestContext.getTimeRecorder().responseBodyCompleted();

                com.king.platform.net.http.HttpResponse httpResponse = new com.king.platform.net.http.HttpResponse(
                        httpResponseStatus.code(), responseBodyConsumer);

                for (Map.Entry<String, String> entry : httpHeaders.entries()) {
                    httpResponse.addHeader(entry.getKey(), entry.getValue());
                }

                requestEventBus.triggerEvent(Event.onHttpResponseDone, httpResponse);

                requestEventBus.triggerEvent(Event.COMPLETED, httpRequestContext);

            }
        }
    } catch (Throwable e) {
        requestEventBus.triggerEvent(Event.ERROR, httpRequestContext, e);
    }
}

---

From source file:com.kixeye.kixmpp.client.KixmppClient.java

License:Apache License

/**
 * Performs auth.//from  w w  w . ja v  a  2s  . c  o m
 */
private void performAuth() {
    byte[] authToken = ("\0" + jid.getNode() + "\0" + password).getBytes(StandardCharsets.UTF_8);

    Element auth = new Element("auth", "urn:ietf:params:xml:ns:xmpp-sasl");
    auth.setAttribute("mechanism", "PLAIN");

    ByteBuf rawCredentials = channel.get().alloc().buffer().writeBytes(authToken);
    ByteBuf encodedCredentials = Base64.encode(rawCredentials);
    String encodedCredentialsString = encodedCredentials.toString(StandardCharsets.UTF_8);
    encodedCredentials.release();
    rawCredentials.release();

    auth.setText(encodedCredentialsString);

    channel.get().writeAndFlush(auth);
}

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From source file:com.lambdaworks.redis.protocol.CommandArgs.java

License:Apache License

@Override
public String toString() {

    final StringBuilder sb = new StringBuilder();
    sb.append(getClass().getSimpleName());

    ByteBuf buffer = UnpooledByteBufAllocator.DEFAULT.buffer(singularArguments.size() * 10);
    encode(buffer);//from   ww w .j a v  a2  s .  c  om
    buffer.resetReaderIndex();

    byte[] bytes = new byte[buffer.readableBytes()];
    buffer.readBytes(bytes);
    sb.append(" [buffer=").append(new String(bytes));
    sb.append(']');
    buffer.release();

    return sb.toString();
}

---

From source file:com.liferay.sync.engine.lan.server.file.SyncChunkedFile.java

License:Open Source License

@Override
public ByteBuf readChunk(ByteBufAllocator byteBufAllocator) throws Exception {

    long offset = _offset;

    if (offset >= _endOffset) {
        return null;
    }/*from  ww w .  j a  v a  2s . c o  m*/

    int chunkSize = (int) Math.min((long) _chunkSize, _endOffset - offset);

    ByteBuf byteBuf = byteBufAllocator.buffer(chunkSize);

    boolean release = true;

    try {
        FileTime currentFileTime = Files.getLastModifiedTime(_path, LinkOption.NOFOLLOW_LINKS);

        long currentTime = currentFileTime.toMillis();

        if (currentTime != _modifiedTime) {
            throw new Exception("File modified during transfer: " + _path);
        }

        int bytesRead = 0;

        if (_closeAggressively || (_fileChannel == null)) {
            _fileChannel = FileChannel.open(_path);

            _fileChannel.position(_offset);
        }

        while (true) {
            int localBytesRead = byteBuf.writeBytes(_fileChannel, chunkSize - bytesRead);

            if (localBytesRead >= 0) {
                bytesRead += localBytesRead;

                if (bytesRead != chunkSize) {
                    continue;
                }
            }

            _offset += bytesRead;

            release = false;

            return byteBuf;
        }
    } finally {
        if (_closeAggressively && (_fileChannel != null)) {
            _fileChannel.close();
        }

        if (release) {
            byteBuf.release();
        }
    }
}

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From source file:com.linecorp.armeria.client.encoding.ZlibStreamDecoder.java

License:Apache License

private byte[] fetchDecoderOutput() {
    CompositeByteBuf decoded = Unpooled.compositeBuffer();
    for (;;) {//from www. j  a  v a2s. c o  m
        ByteBuf buf = decoder.readInbound();
        if (buf == null) {
            break;
        }
        if (!buf.isReadable()) {
            buf.release();
            continue;
        }
        decoded.addComponent(true, buf);
    }
    byte[] ret = ByteBufUtil.getBytes(decoded);
    decoded.release();
    return ret;
}

---

From source file:com.linecorp.armeria.client.Http2ClientSettingsTest.java

License:Apache License

@Test
public void maxFrameSize() throws Exception {

    try (ServerSocket ss = new ServerSocket(0)) {
        final int port = ss.getLocalPort();

        final ClientFactory clientFactory = new ClientFactoryBuilder().useHttp2Preface(true)
                .http2MaxFrameSize(DEFAULT_MAX_FRAME_SIZE * 2) // == 16384 * 2
                .build();//w  w w  .jav a  2s .c o  m

        final HttpClient client = HttpClient.of(clientFactory, "http://127.0.0.1:" + port);
        final CompletableFuture<AggregatedHttpMessage> future = client.get("/").aggregate();

        try (Socket s = ss.accept()) {
            final InputStream in = s.getInputStream();
            final BufferedOutputStream bos = new BufferedOutputStream(s.getOutputStream());

            readBytes(in, connectionPrefaceBuf().capacity()); // Read the connection preface and discard it.

            // Read a SETTINGS frame and validate it.
            assertSettingsFrameOfMaxFrameSize(in);

            sendEmptySettingsAndAckFrame(bos);

            readBytes(in, 9); // Read a SETTINGS_ACK frame and discard it.
            readHeadersFrame(in); // Read a HEADERS frame and discard it.

            sendHeaderFrame(bos);

            ////////////////////////////////////////
            // Transmission of data gets started. //
            ////////////////////////////////////////

            // Send a DATA frame that indicates sending data as much as 0x8000 for stream id 03.
            bos.write(new byte[] { 0x00, (byte) 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03 });
            bos.write(EMPTY_DATA);
            bos.write(EMPTY_DATA);
            bos.flush();

            readBytes(in, 13); // Read a WINDOW_UPDATE frame for connection and discard it.
            readBytes(in, 13); // Read a WINDOW_UPDATE frame for stream id 03 and discard it.

            // Send a DATA frame that exceed MAX_FRAME_SIZE by 1.
            bos.write(new byte[] { 0x00, (byte) 0x80, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03 });
            bos.flush(); // Triggers the client to send a GOAWAY frame for the connection.

            // The client send a GOAWAY frame and the server read it.
            final ByteBuf buffer = readGoAwayFrame(in);
            final DefaultHttp2FrameReader frameReader = new DefaultHttp2FrameReader();

            final CountDownLatch latch = new CountDownLatch(1);
            frameReader.readFrame(null, buffer, new Http2EventAdapter() {
                @Override
                public void onGoAwayRead(ChannelHandlerContext ctx, int lastStreamId, long errorCode,
                        ByteBuf debugData) throws Http2Exception {
                    assertThat(lastStreamId).isZero(); // 0: connection error
                    assertThat(errorCode).isEqualTo(Http2Error.FRAME_SIZE_ERROR.code());
                    latch.countDown();
                }
            });
            latch.await();
            buffer.release();
        }
    }
}

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