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.dlc.server.DLCHttpServerHandler.java

private void writeResponse(ChannelHandlerContext ctx, String json) {
    buf.setLength(0);//  w ww.  ja v  a 2s.c  o  m
    buf.append(json);
    FullHttpResponse response = new DefaultFullHttpResponse(HTTP_1_1, OK,
            Unpooled.copiedBuffer(buf, CharsetUtil.UTF_8));
    response.headers().set(CONTENT_TYPE, "text/plain");
    response.headers().setInt(CONTENT_LENGTH, response.content().readableBytes());
    response.headers().set(ACCESS_CONTROL_ALLOW_ORIGIN, "*");

    ctx.write(response).addListener(ChannelFutureListener.CLOSE);

}

From source file:com.dwarf.netty.guide.http.snoop.HttpSnoopServerHandler.java

License:Apache License

@Override
protected void messageReceived(ChannelHandlerContext ctx, Object msg) {
    if (msg instanceof HttpRequest) {
        HttpRequest request = this.request = (HttpRequest) msg;

        if (HttpHeaderUtil.is100ContinueExpected(request)) {
            send100Continue(ctx);/*w  w w .ja v a 2 s . com*/
        }

        buf.setLength(0);
        buf.append("WELCOME TO THE WILD WILD WEB SERVER\r\n");
        buf.append("===================================\r\n");

        buf.append("VERSION: ").append(request.protocolVersion()).append("\r\n");
        buf.append("HOSTNAME: ").append(request.headers().get(HOST, "unknown")).append("\r\n");
        buf.append("REQUEST_URI: ").append(request.uri()).append("\r\n\r\n");

        HttpHeaders headers = request.headers();
        if (!headers.isEmpty()) {
            for (Map.Entry<CharSequence, CharSequence> h : headers) {
                CharSequence key = h.getKey();
                CharSequence value = h.getValue();
                buf.append("HEADER: ").append(key).append(" = ").append(value).append("\r\n");
            }
            buf.append("\r\n");
        }

        QueryStringDecoder queryStringDecoder = new QueryStringDecoder(request.uri());
        Map<String, List<String>> params = queryStringDecoder.parameters();
        if (!params.isEmpty()) {
            for (Entry<String, List<String>> p : params.entrySet()) {
                String key = p.getKey();
                List<String> vals = p.getValue();
                for (String val : vals) {
                    buf.append("PARAM: ").append(key).append(" = ").append(val).append("\r\n");
                }
            }
            buf.append("\r\n");
        }

        appendDecoderResult(buf, request);
    }

    if (msg instanceof HttpContent) {
        HttpContent httpContent = (HttpContent) msg;

        ByteBuf content = httpContent.content();
        if (content.isReadable()) {
            buf.append("CONTENT: ");
            buf.append(content.toString(CharsetUtil.UTF_8));
            buf.append("\r\n");
            appendDecoderResult(buf, request);
        }

        if (msg instanceof LastHttpContent) {
            buf.append("END OF CONTENT\r\n");

            LastHttpContent trailer = (LastHttpContent) msg;
            if (!trailer.trailingHeaders().isEmpty()) {
                buf.append("\r\n");
                for (CharSequence name : trailer.trailingHeaders().names()) {
                    for (CharSequence value : trailer.trailingHeaders().getAll(name)) {
                        buf.append("TRAILING HEADER: ");
                        buf.append(name).append(" = ").append(value).append("\r\n");
                    }
                }
                buf.append("\r\n");
            }

            if (!writeResponse(trailer, ctx)) {
                // If keep-alive is off, close the connection once the content is fully written.
                ctx.writeAndFlush(Unpooled.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
            }
        }
    }
}

From source file:com.e2e.management.HttpSocketHandler.java

License:Apache License

public void handleHttpFileRequest(ChannelHandlerContext ctx, FullHttpRequest request) throws Exception {

    if (!request.getDecoderResult().isSuccess()) {
        sendError(ctx, BAD_REQUEST);/*from   w ww  .j  a v  a2  s.c  o m*/
        return;
    }

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

    String uri = request.getUri();
    if (uri == null) {
        sendError(ctx, FORBIDDEN);
        return;
    }
    if ((uri.equals("")) || (uri.equals("/"))) {
        uri = "/index.html";
    }
    final String path = sanitizeUri(uri);

    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 ignore) {
        sendError(ctx, NOT_FOUND);
        return;
    }
    long fileLength = raf.length();

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

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

    // Write the content.
    ChannelFuture sendFileFuture;
    ChannelFuture lastContentFuture;
    if (ctx.pipeline().get(SslHandler.class) == null) {
        sendFileFuture = ctx.write(new DefaultFileRegion(raf.getChannel(), 0, fileLength),
                ctx.newProgressivePromise());
        // Write the end marker.
        lastContentFuture = ctx.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT);
    } else {
        sendFileFuture = ctx.write(new ChunkedFile(raf, 0, fileLength, 8192), ctx.newProgressivePromise());
        // HttpChunkedInput will write the end marker (LastHttpContent) for us.
        lastContentFuture = sendFileFuture;
    }

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

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

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

From source file:com.earasoft.framework.http.WebSocketServerHandler.java

License:Apache License

private void handleHttpRequest(ChannelHandlerContext ctx, FullHttpRequest request) {
    // Handle a bad request.
    if (!request.getDecoderResult().isSuccess()) {
        sendHttpResponse(ctx, request, new DefaultFullHttpResponse(HTTP_1_1, HttpResponseStatus.BAD_REQUEST));
        return;//from  w w  w .  ja v a  2s  . c om
    }

    if (RouterHits.checkIfMappingExit(request)) {
        //Do Router Mapping First
        RouterHits.execute(ctx, request);
        return;
    }

    if ("/websocket".equals(request.getUri())) {
        // Handshake
        WebSocketServerHandshakerFactory wsFactory = new WebSocketServerHandshakerFactory(
                getWebSocketLocation(request), null, true);
        handshaker = wsFactory.newHandshaker(request);
        if (handshaker == null) {
            WebSocketServerHandshakerFactory.sendUnsupportedVersionResponse(ctx.channel());
        } else {
            handshaker.handshake(ctx.channel(), request);
            channels.add(ctx.channel());
        }
        return;
    }

    final String uri = request.getUri();
    //System.out.println("uri: " + uri);
    final String path = sanitizeUri("www", uri);
    //System.out.println("path: " + path);
    if (path == null) {
        sendHttpResponse(ctx, request, new DefaultFullHttpResponse(HTTP_1_1, HttpResponseStatus.FORBIDDEN));

        return;
    }

    File file = new File(path);
    if (file.isHidden() || !file.exists()) {
        sendHttpResponse(ctx, request, new DefaultFullHttpResponse(HTTP_1_1, HttpResponseStatus.NOT_FOUND));
        return;
    }

    if (file.isDirectory()) {
        if (uri.endsWith("/")) {

            File checkIndexFile = new File(file.getAbsolutePath() + File.separator + "index.html");

            System.out.println(checkIndexFile.exists());
            if (checkIndexFile.exists()) {
                file = checkIndexFile;
            } else {
                sendListing(ctx, file);
                return;
            }
        } else {
            sendRedirect(ctx, uri + '/');

        }
    }

    if (!file.isFile()) {
        sendHttpResponse(ctx, request, new DefaultFullHttpResponse(HTTP_1_1, HttpResponseStatus.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 = null;
        try {
            ifModifiedSinceDate = dateFormatter.parse(ifModifiedSince);
        } catch (ParseException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        // 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 ignore) {
        sendHttpResponse(ctx, request, new DefaultFullHttpResponse(HTTP_1_1, HttpResponseStatus.NOT_FOUND));
        return;
    }
    long fileLength = 0;
    try {
        fileLength = raf.length();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    HttpResponse response = new DefaultHttpResponse(HTTP_1_1, OK);
    HttpHeaders.setContentLength(response, fileLength);
    setContentTypeHeader(response, file);
    setDateAndCacheHeaders(response, file);
    if (HttpHeaders.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 = null;
    ChannelFuture lastContentFuture;
    if (ctx.pipeline().get(SslHandler.class) == null) {
        sendFileFuture = ctx.write(new DefaultFileRegion(raf.getChannel(), 0, fileLength),
                ctx.newProgressivePromise());
        // Write the end marker.
        lastContentFuture = ctx.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT);
    } else {
        try {
            sendFileFuture = ctx.writeAndFlush(new HttpChunkedInput(new ChunkedFile(raf, 0, fileLength, 8192)),
                    ctx.newProgressivePromise());
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        // HttpChunkedInput will write the end marker (LastHttpContent) for us.
        lastContentFuture = sendFileFuture;
    }

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

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

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

    //        // Send the demo page and favicon.ico
    //        if ("/".equals(req.getUri()) && req.getMethod() == GET) {
    //            ByteBuf content = WebSocketServerIndexPage.getContent(getWebSocketLocation(req));
    //            FullHttpResponse res = new DefaultFullHttpResponse(HTTP_1_1, OK, content);
    //
    //            res.headers().set(CONTENT_TYPE, "text/html; charset=UTF-8");
    //            HttpHeaders.setContentLength(res, content.readableBytes());
    //
    //            sendHttpResponse(ctx, req, res);
    //            return;
    //        }
    //        
    //        if ("/favicon.ico".equals(req.getUri())) {
    //            FullHttpResponse res = new DefaultFullHttpResponse(HTTP_1_1, NOT_FOUND);
    //            sendHttpResponse(ctx, req, res);
    //            return;
    //        }

    sendHttpResponse(ctx, request, new DefaultFullHttpResponse(HTTP_1_1, HttpResponseStatus.FORBIDDEN));
    return;

}

From source file:com.easy.remoting.netty.handler.EasyDecoder.java

License:Apache License

@Override
public Object decode(ChannelHandlerContext ctx, ByteBuf in) throws Exception {
    ByteBuf frame = null;//ww  w  .ja  va2  s.c o  m
    try {
        frame = (ByteBuf) super.decode(ctx, in);
        if (null == frame) {
            return null;
        }

        ByteBuffer byteBuffer = frame.nioBuffer();

        return Cmd.decode(byteBuffer);
    } catch (Exception e) {
        log.error("decode exception:{}", e);

        ctx.channel().close().addListener(ChannelFutureListener.CLOSE);

    } finally {
        if (null != frame) {
            frame.release();
        }
    }

    return null;
}

From source file:com.easy.remoting.netty.handler.EasyEncoder.java

License:Apache License

@Override
public void encode(ChannelHandlerContext ctx, Cmd cmd, ByteBuf out) throws Exception {
    try {/*ww w. j av  a  2  s. c  om*/
        ByteBuffer cmdBytes = cmd.encode();
        out.writeBytes(cmdBytes);

    } catch (Exception e) {
        log.error("encode exception: {}", e);

        ctx.channel().close().addListener(ChannelFutureListener.CLOSE);
    }
}

From source file:com.ebay.jetstream.http.netty.server.AbstractHttpRequest.java

License:MIT License

protected void postResponse(Channel channel, HttpRequest request, HttpResponse response) {

    boolean keepAlive = HttpHeaders.isKeepAlive(request);

    String reqid = request.headers().get("X_EBAY_REQ_ID");

    if (reqid != null && !reqid.isEmpty()) // if request contains
                                           // X_EBAY_REQ_ID we will echo it
                                           // back
        HttpHeaders.setHeader(response, "X_EBAY_REQ_ID", reqid);

    // we will echo back cookies for now in the response. Our request ID is
    // set as a cookie

    String contentLenHeader = response.headers().get(HttpHeaders.Names.CONTENT_LENGTH);
    if (contentLenHeader == null)
        HttpHeaders.setContentLength(response, 0);

    // Write the response.
    ChannelFuture future = channel.writeAndFlush(response);

    // Close the non-keep-alive connection after the write operation is
    // done.//from   ww w.  j ava2 s. c o  m
    if (!keepAlive) {
        future.addListener(ChannelFutureListener.CLOSE);
    }
}

From source file:com.ebay.jetstream.http.netty.server.KeepAliveHandler.java

License:MIT License

private void closeConnection(Object msg, ChannelPromise promise) {
    if (msg instanceof HttpResponse) {
        HttpHeaders.setHeader((HttpResponse) msg, HttpHeaders.Names.CONNECTION, HttpHeaders.Values.CLOSE);
    }/*from   ww  w  . j  av  a 2 s  . co m*/
    promise.addListener(ChannelFutureListener.CLOSE);
}

From source file:com.elephant.framework.network.telnet.netty.TelnetServerHandler.java

License:Apache License

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

    //String msgId = request.substring(0, endIndex)

    // Generate and write a response.
    String response;/*w  w  w  .  j  a v a 2  s.c om*/
    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.example.grpc.server.PrometheusServer.java

License:Apache License

public void start() {
    final ServerBootstrap bootstrap = new ServerBootstrap();

    bootstrap.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
            .handler(new LoggingHandler(LogLevel.INFO)).childHandler(new ChannelInitializer<SocketChannel>() {
                @Override// ww  w. j a va 2  s.  c  o m
                protected void initChannel(SocketChannel socketChannel) throws Exception {
                    ChannelPipeline pipeline = socketChannel.pipeline();
                    pipeline.addLast("decoder", new HttpRequestDecoder());
                    pipeline.addLast("encoder", new HttpResponseEncoder());
                    pipeline.addLast("prometheus", new SimpleChannelInboundHandler<Object>() {
                        @Override
                        protected void channelRead0(ChannelHandlerContext channelHandlerContext, Object o)
                                throws Exception {
                            if (!(o instanceof HttpRequest)) {
                                return;
                            }

                            HttpRequest request = (HttpRequest) o;

                            if (!"/metrics".equals(request.uri())) {
                                final FullHttpResponse response = new DefaultFullHttpResponse(
                                        HttpVersion.HTTP_1_1, HttpResponseStatus.NOT_FOUND);
                                channelHandlerContext.writeAndFlush(response)
                                        .addListener(ChannelFutureListener.CLOSE);
                                return;
                            }

                            if (!HttpMethod.GET.equals(request.method())) {
                                final FullHttpResponse response = new DefaultFullHttpResponse(
                                        HttpVersion.HTTP_1_1, HttpResponseStatus.NOT_ACCEPTABLE);
                                channelHandlerContext.writeAndFlush(response)
                                        .addListener(ChannelFutureListener.CLOSE);
                                return;
                            }

                            ByteBuf buf = Unpooled.buffer();
                            ByteBufOutputStream os = new ByteBufOutputStream(buf);
                            OutputStreamWriter writer = new OutputStreamWriter(os);
                            TextFormat.write004(writer, registry.metricFamilySamples());
                            writer.close();
                            os.close();

                            final FullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1,
                                    HttpResponseStatus.OK, buf);
                            response.headers().set(HttpHeaderNames.CONTENT_TYPE, TextFormat.CONTENT_TYPE_004);
                            channelHandlerContext.writeAndFlush(response)
                                    .addListener(ChannelFutureListener.CLOSE);
                        }
                    });

                }
            });

    try {
        this.channel = bootstrap.bind(this.port).sync().channel();
    } catch (InterruptedException e) {
        // do nothing
    }
}