Example usage for io.netty.channel ChannelFutureListener CLOSE

List of usage examples for io.netty.channel ChannelFutureListener CLOSE

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Introduction

In this page you can find the example usage for io.netty.channel ChannelFutureListener CLOSE.

Prototype

ChannelFutureListener CLOSE

To view the source code for io.netty.channel ChannelFutureListener CLOSE.

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Document

A ChannelFutureListener that closes the Channel which is associated with the specified ChannelFuture .

Usage

From source file:com.phei.netty.nio.http.upload.HttpUploadServerHandler.java

License:Apache License

private void writeResponse(Channel channel) {
    // Convert the response content to a ChannelBuffer.
    ByteBuf buf = copiedBuffer(responseContent.toString(), CharsetUtil.UTF_8);
    responseContent.setLength(0);//from www.j a  v  a  2  s.  c o  m

    // Decide whether to close the connection or not.
    boolean close = request.headers().contains(HttpHeaderNames.CONNECTION, HttpHeaderValues.CLOSE, true)
            || request.protocolVersion().equals(HttpVersion.HTTP_1_0) && !request.headers()
                    .contains(HttpHeaderNames.CONNECTION, HttpHeaderValues.KEEP_ALIVE, true);

    // Build the response object.
    FullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK, buf);
    response.headers().set(HttpHeaderNames.CONTENT_TYPE, "text/plain; charset=UTF-8");

    if (!close) {
        // There's no need to add 'Content-Length' header
        // if this is the last response.
        response.headers().setInt(HttpHeaderNames.CONTENT_LENGTH, buf.readableBytes());
    }

    Set<Cookie> cookies;
    String value = request.headers().getAndConvert(HttpHeaderNames.COOKIE);
    if (value == null) {
        cookies = Collections.emptySet();
    } else {
        cookies = ServerCookieDecoder.decode(value);
    }
    if (!cookies.isEmpty()) {
        // Reset the cookies if necessary.
        for (Cookie cookie : cookies) {
            response.headers().add(HttpHeaderNames.SET_COOKIE, ServerCookieEncoder.encode(cookie));
        }
    }
    // Write the response.
    ChannelFuture future = channel.writeAndFlush(response);
    // Close the connection after the write operation is done if necessary.
    if (close) {
        future.addListener(ChannelFutureListener.CLOSE);
    }
}

From source file:com.phei.netty.protocol.http.fileServer.HttpFileServerHandler.java

License:Apache License

@Override
public void messageReceived(ChannelHandlerContext ctx, FullHttpRequest request) throws Exception {

    //http??/*w  w  w . j  a v a2 s.co m*/
    if (!request.getDecoderResult().isSuccess()) {
        sendError(ctx, BAD_REQUEST);
        return;
    }
    //??get?
    if (request.getMethod() != GET) {
        sendError(ctx, METHOD_NOT_ALLOWED);
        return;
    }
    //uri??
    final String uri = request.getUri();
    final String path = sanitizeUri(uri);

    //URI??
    if (path == null) {
        sendError(ctx, FORBIDDEN);
        return;
    }
    //file
    File file = new File(path);
    if (file.isHidden() || !file.exists()) {
        sendError(ctx, NOT_FOUND);
        return;
    }
    if (file.isDirectory()) {
        if (uri.endsWith("/")) {
            sendListing(ctx, file);
        } else {
            sendRedirect(ctx, uri + '/');
        }
        return;
    }
    if (!file.isFile()) {
        sendError(ctx, FORBIDDEN);
        return;
    }
    RandomAccessFile randomAccessFile = null;
    try {
        randomAccessFile = new RandomAccessFile(file, "r");// ??
    } catch (FileNotFoundException fnfe) {
        sendError(ctx, NOT_FOUND);
        return;
    }
    long fileLength = randomAccessFile.length();
    HttpResponse response = new DefaultHttpResponse(HTTP_1_1, OK);
    setContentLength(response, fileLength);
    setContentTypeHeader(response, file);
    if (isKeepAlive(request)) {
        response.headers().set(CONNECTION, HttpHeaders.Values.KEEP_ALIVE);
    }
    ctx.write(response);
    ChannelFuture sendFileFuture;
    sendFileFuture = ctx.write(new ChunkedFile(randomAccessFile, 0, fileLength, 8192),
            ctx.newProgressivePromise());
    sendFileFuture.addListener(new ChannelProgressiveFutureListener() {
        @Override
        public void operationProgressed(ChannelProgressiveFuture future, long progress, long total) {
            if (total < 0) { // total unknown
                System.err.println("Transfer progress: " + progress);
            } else {
                System.err.println("Transfer progress: " + progress + " / " + total);
            }
        }

        @Override
        public void operationComplete(ChannelProgressiveFuture future) throws Exception {
            System.out.println("Transfer complete.");
        }
    });
    ChannelFuture lastContentFuture = ctx.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT);
    if (!isKeepAlive(request)) {
        lastContentFuture.addListener(ChannelFutureListener.CLOSE);
    }
}

From source file:com.phei.netty.protocol.http.xml.codec.HttpXmlRequestDecoder.java

License:Apache License

private static void sendError(ChannelHandlerContext ctx, HttpResponseStatus status) {
    //??//from w w  w . j av  a 2s. com
    FullHttpResponse response = new DefaultFullHttpResponse(HTTP_1_1, status,
            Unpooled.copiedBuffer("Failure: " + status.toString() + "\r\n", CharsetUtil.UTF_8));
    response.headers().set(CONTENT_TYPE, "text/plain; charset=UTF-8");
    ctx.writeAndFlush(response).addListener(ChannelFutureListener.CLOSE);
}

From source file:com.pokersu.server.WebSocketServerHandler.java

License:Apache License

private static void sendHttpResponse(ChannelHandlerContext ctx, HttpRequest 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);/*w ww  .j a v a  2s.  co  m*/
        buf.release();
        //            HttpUtil.setContentLength(res, res.content().readableBytes());
    }

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

From source file:com.qq.servlet.demo.netty.sample.http.file.HttpStaticFileServerHandler.java

License:Apache License

@Override
public void messageReceived(ChannelHandlerContext ctx, FullHttpRequest request) throws Exception {
    if (!request.getDecoderResult().isSuccess()) {
        sendError(ctx, BAD_REQUEST);// w  ww . j  a va 2s.com
        return;
    }

    if (request.getMethod() != GET) {
        sendError(ctx, METHOD_NOT_ALLOWED);
        return;
    }

    final String uri = request.getUri();
    final String path = sanitizeUri(uri);
    if (path == null) {
        sendError(ctx, FORBIDDEN);
        return;
    }

    File file = new File(path);
    if (file.isHidden() || !file.exists()) {
        sendError(ctx, NOT_FOUND);
        return;
    }

    if (file.isDirectory()) {
        if (uri.endsWith("/")) {
            sendListing(ctx, file);
        } else {
            sendRedirect(ctx, uri + '/');
        }
        return;
    }

    if (!file.isFile()) {
        sendError(ctx, FORBIDDEN);
        return;
    }

    // Cache Validation
    String ifModifiedSince = request.headers().get(IF_MODIFIED_SINCE);
    if (ifModifiedSince != null && !ifModifiedSince.isEmpty()) {
        SimpleDateFormat dateFormatter = new SimpleDateFormat(HTTP_DATE_FORMAT, Locale.US);
        Date ifModifiedSinceDate = dateFormatter.parse(ifModifiedSince);

        // Only compare up to the second because the datetime format we send to the client
        // does not have milliseconds
        long ifModifiedSinceDateSeconds = ifModifiedSinceDate.getTime() / 1000;
        long fileLastModifiedSeconds = file.lastModified() / 1000;
        if (ifModifiedSinceDateSeconds == fileLastModifiedSeconds) {
            sendNotModified(ctx);
            return;
        }
    }

    RandomAccessFile raf;
    try {
        raf = new RandomAccessFile(file, "r");
    } catch (FileNotFoundException fnfe) {
        sendError(ctx, NOT_FOUND);
        return;
    }
    long fileLength = raf.length();

    HttpResponse response = new DefaultHttpResponse(HTTP_1_1, OK);
    setContentLength(response, fileLength);
    setContentTypeHeader(response, file);
    setDateAndCacheHeaders(response, file);
    if (isKeepAlive(request)) {
        response.headers().set(CONNECTION, HttpHeaders.Values.KEEP_ALIVE);
    }

    // Write the initial line and the header.
    ctx.write(response);

    // Write the content.
    ChannelFuture sendFileFuture;
    if (useSendFile) {
        sendFileFuture = ctx.write(new DefaultFileRegion(raf.getChannel(), 0, fileLength),
                ctx.newProgressivePromise());
    } else {
        sendFileFuture = ctx.write(new ChunkedFile(raf, 0, fileLength, 8192), ctx.newProgressivePromise());
    }

    sendFileFuture.addListener(new ChannelProgressiveFutureListener() {
        @Override
        public void operationProgressed(ChannelProgressiveFuture future, long progress, long total) {
            if (total < 0) { // total unknown
                System.err.println("Transfer progress: " + progress);
            } else {
                System.err.println("Transfer progress: " + progress + " / " + total);
            }
        }

        @Override
        public void operationComplete(ChannelProgressiveFuture future) throws Exception {
            System.err.println("Transfer complete.");
        }
    });

    // Write the end marker
    ChannelFuture lastContentFuture = ctx.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT);

    // Decide whether to close the connection or not.
    if (!isKeepAlive(request)) {
        // Close the connection when the whole content is written out.
        lastContentFuture.addListener(ChannelFutureListener.CLOSE);
    }
}

From source file:com.qq.servlet.demo.netty.sample.http.helloworld.HttpHelloWorldServerHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    System.out.println(msg);//from  ww w .  j a  v a2s . co  m
    System.out.println("\n\n\n\n============" + msg.getClass().getName() + "=================\n\n\n");
    if (msg instanceof HttpRequest) {
        HttpRequest req = (HttpRequest) msg;
        String uri = req.getUri();
        System.out.println("uri--->>>" + uri);
        if (is100ContinueExpected(req)) {
            ctx.write(new DefaultFullHttpResponse(HTTP_1_1, CONTINUE));
        }
        boolean keepAlive = isKeepAlive(req);
        FullHttpResponse response = new DefaultFullHttpResponse(HTTP_1_1, OK,
                Unpooled.wrappedBuffer("".getBytes()));
        response.headers().set(CONTENT_TYPE, "text/plain");
        response.headers().set(CONTENT_LENGTH, response.content().readableBytes());

        if (!keepAlive) {
            ctx.write(response).addListener(ChannelFutureListener.CLOSE);
        } else {
            response.headers().set(CONNECTION, Values.KEEP_ALIVE);
            ctx.write(response);
        }
    } else if (msg instanceof DefaultLastHttpContent) {
        DefaultLastHttpContent httpContent = (DefaultLastHttpContent) msg;
        String body = httpContent.content().toString(CharsetUtil.UTF_8);
        System.out.println("body===>>> " + body);
    }
}

From source file:com.qq.servlet.demo.netty.sample.telnet.TelnetServerHandler.java

License:Apache License

@Override
public void messageReceived(ChannelHandlerContext ctx, String request) throws Exception {
    System.out.println(request);/*from  w w  w. j  a va 2  s . c o m*/
    // Generate and write a response.
    String response;
    boolean close = false;
    if (request.isEmpty()) {
        response = "Please type something.\r\n";
    } else if ("bye".equals(request.toLowerCase())) {
        response = "Have a good day!\r\n";
        close = true;
    } else {
        response = "Did you say '" + request + "'?\r\n";
    }

    // We do not need to write a ChannelBuffer here.
    // We know the encoder inserted at TelnetPipelineFactory will do the conversion.
    ChannelFuture future = ctx.write(response);

    // Close the connection after sending 'Have a good day!'
    // if the client has sent 'bye'.
    if (close) {
        future.addListener(ChannelFutureListener.CLOSE);
    }
}

From source file:com.qq.servlet.demo.netty.telnet.TelnetServerHandler.java

License:Apache License

@Override
public void messageReceived(ChannelHandlerContext ctx, String request) throws Exception {
    System.out.println(System.currentTimeMillis() + "\t" + request);
    //       Random random = new Random();
    //       Thread.sleep(random.nextInt(2000));
    Thread.sleep(1000);//from  www. ja  v  a2  s . c o  m
    // Generate and write a response.
    String response = new Random().nextInt(100000000) + " " + System.currentTimeMillis();
    boolean close = false;
    if (request.isEmpty()) {
        response = "Please type something.\r\n";
    } else if ("bye".equals(request.toLowerCase())) {
        response = "Have a good day!\r\n";
        close = true;
    } else {
        response = "Did you say '" + request + "'?\r\n";
    }

    // We do not need to write a ChannelBuffer here.
    // We know the encoder inserted at TelnetPipelineFactory will do the conversion.
    ChannelFuture future = ctx.write(response);

    // Close the connection after sending 'Have a good day!'
    // if the client has sent 'bye'.
    if (close) {
        future.addListener(ChannelFutureListener.CLOSE);
    }
}

From source file:com.rackspacecloud.blueflood.http.HttpResponder.java

License:Apache License

public static void respond(ChannelHandlerContext ctx, FullHttpRequest req, FullHttpResponse res) {

    // set response headers
    if (CORS_ENABLED) {
        res.headers().add("Access-Control-Allow-Origin", CORS_ALLOWED_ORIGINS);
    }/*from w w w .  j a va 2 s .c  o  m*/

    if (res.content() != null) {
        setContentLength(res, res.content().readableBytes());
    }

    if (isKeepAlive(req)) {
        res.headers().add(CONNECTION, KEEP_ALIVE);
    }

    // Send the response and close the connection if necessary.
    ctx.channel().write(res);
    if (req == null || !isKeepAlive(req)) {
        ctx.writeAndFlush(Unpooled.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
    }
}

From source file:com.rackspacecloud.blueflood.inputs.handlers.HttpMetricsIngestionServer.java

License:Apache License

private void setupPipeline(SocketChannel channel, RouteMatcher router) {
    final ChannelPipeline pipeline = channel.pipeline();

    pipeline.addLast("encoder", new HttpResponseEncoder());
    pipeline.addLast("decoder", new HttpRequestDecoder() {

        // if something bad happens during the decode, assume the client send bad data. return a 400.
        @Override// ww w  .ja v a2 s .c  o  m
        public void exceptionCaught(ChannelHandlerContext ctx, Throwable thr) throws Exception {
            try {
                if (ctx.channel().isWritable()) {
                    log.debug("request decoder error " + thr.getCause().toString() + " on channel "
                            + ctx.channel().toString());
                    ctx.channel().write(
                            new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.BAD_REQUEST))
                            .addListener(ChannelFutureListener.CLOSE);
                } else {
                    log.debug("channel " + ctx.channel().toString()
                            + " is no longer writeable, not sending 400 response back to client");
                }
            } catch (Exception ex) {
                // If we are getting exception trying to write,
                // don't propagate to caller. It may cause this
                // method to be called again and will produce
                // stack overflow. So just log it here.
                log.debug("Can't write to channel " + ctx.channel().toString(), ex);
            }
        }
    });
    pipeline.addLast("inflater", new HttpContentDecompressor());
    pipeline.addLast("chunkaggregator", new HttpObjectAggregator(httpMaxContentLength));
    pipeline.addLast("respdecoder", new HttpResponseDecoder());
    pipeline.addLast("handler", new QueryStringDecoderAndRouter(router));
}