Example usage for io.netty.channel ChannelHandlerContext channel

Introduction

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

Prototype

Channel channel();

Source Link

Document

Return the Channel which is bound to the ChannelHandlerContext .

Usage

From source file:com.dwarf.netty.guide.securechat.SecureChatServerHandler.java

License:Apache License

@Override
public void messageReceived(ChannelHandlerContext ctx, String msg) throws Exception {
    // Send the received message to all channels but the current one.
    for (Channel c : channels) {
        if (c != ctx.channel()) {
            c.writeAndFlush("[" + ctx.channel().remoteAddress() + "] " + msg + '\n');
        } else {/*  w  ww  . j a  v  a  2s .  c  om*/
            c.writeAndFlush("[you] " + msg + '\n');
        }
    }

    // Close the connection if the client has sent 'bye'.
    if ("bye".equals(msg.toLowerCase())) {
        ctx.close();
    }
}

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From source file:com.dwarf.netty.guide.worldclock.WorldClockClientHandler.java

License:Apache License

@Override
public void channelRegistered(ChannelHandlerContext ctx) {
    channel = ctx.channel();
}

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

License:Apache License

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

    // Allow only GET methods.
    if (req.getMethod() != GET) {
        sendHttpResponse(ctx, req, new DefaultFullHttpResponse(HTTP_1_1, FORBIDDEN));
        return;
    }

    if ("/favicon.ico".equals(req.getUri())) {
        FullHttpResponse res = new DefaultFullHttpResponse(HTTP_1_1, NOT_FOUND);
        sendHttpResponse(ctx, req, res);
        return;
    }

    // Handshake
    WebSocketServerHandshakerFactory wsFactory = new WebSocketServerHandshakerFactory(getWebSocketLocation(req),
            null, true);
    handshaker = wsFactory.newHandshaker(req);
    if (handshaker == null) {
        WebSocketServerHandshakerFactory.sendUnsupportedWebSocketVersionResponse(ctx.channel());
    } else {
        handshaker.handshake(ctx.channel(), req);
    }
}

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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;/*  w w w . j  a v a  2  s  . c o m*/
    }

    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;

}

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

License:Apache License

private void handleWebSocketFrame(ChannelHandlerContext ctx, WebSocketFrame frame) {

    System.out.println("pre1:" + frame);

    // Check for closing frame
    if (frame instanceof CloseWebSocketFrame) {
        handshaker.close(ctx.channel(), (CloseWebSocketFrame) frame.retain());
        return;/*from ww w.  j  av  a  2  s.  c o m*/
    }
    if (frame instanceof PingWebSocketFrame) {
        ctx.channel().write(new PongWebSocketFrame(frame.content().retain()));
        return;
    }
    if (!(frame instanceof TextWebSocketFrame)) {
        throw new UnsupportedOperationException(
                String.format("%s frame types not supported", frame.getClass().getName()));
    }

    WebsocketMessageHandlerI websocketMessageHandler = new WebSocketMessageHander(ctx, channels);
    // Send the uppercase string back.

    String requestRaw = ((TextWebSocketFrame) frame).text();

    websocketMessageHandler.handleMessage(requestRaw);
}

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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;//from ww  w. j  a  va  2s  .  com
    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 {//from www.j a v a2s.  c om
        ByteBuffer cmdBytes = cmd.encode();
        out.writeBytes(cmdBytes);

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

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

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From source file:com.ebay.jetstream.http.netty.client.HttpResponseHandler.java

License:MIT License

@Override
public void channelActive(ChannelHandlerContext ctx) throws Exception {

    printInfo("Rcvr Session created to host - "
            + ((InetSocketAddress) ctx.channel().remoteAddress()).getHostName());

    super.channelActive(ctx);
}

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From source file:com.ebay.jetstream.http.netty.client.HttpResponseHandler.java

License:MIT License

@Override
public void channelInactive(ChannelHandlerContext ctx) throws Exception {

    printInfo("EventProducerSessionHandler -> session closed to host - "
            + ((InetSocketAddress) ctx.channel().remoteAddress()).getHostName());

    super.channelInactive(ctx);

    m_httpClient.channelDisconnected(ctx.channel());

}

---

From source file:com.ebay.jetstream.http.netty.client.HttpResponseHandler.java

License:MIT License

@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable ee) throws Exception {

    String message = "Exception Caught while communicating to ";

    try {//from  w  w w.ja v  a 2s .c o  m
        message += ((InetSocketAddress) ctx.channel().remoteAddress()).getHostName();
        message += ee.getCause();
        printInfo(message);
    } catch (Throwable t) {
    }

    printInfo("EventProducerSessionHandler -> exceptionCaught" + ee.toString());

    super.exceptionCaught(ctx, ee);
}

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