Example usage for io.netty.buffer ByteBuf toString

List of usage examples for io.netty.buffer ByteBuf toString

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Introduction

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

Prototype

public abstract String toString(Charset charset);

Source Link

Document

Decodes this buffer's readable bytes into a string with the specified character set name.

Usage

From source file:org.greencheek.caching.herdcache.memcached.elasticacheconfig.server.StringBasedServerHandler.java

License:Apache License

private void sendAll(final ChannelHandlerContext ctx) {
    long delayFor = delay;
    for (ByteBuf message : this.msg) {
        ByteBuf messageCopy = message.copy();
        String messageCopyStr = messageCopy.toString(Charset.forName("UTF-8"));
        if (messageCopyStr.contains("${REMOTE_ADDR}")) {
            messageCopyStr = messageCopyStr.replace("${REMOTE_ADDR}", ctx.channel().remoteAddress().toString());
        }//from w  ww.j  a v  a  2s  . co  m

        final ByteBuf messageToSend = stringToByteBuf(messageCopyStr);

        if (delay < 1) {
            ctx.writeAndFlush(messageToSend);
        } else {
            ctx.channel().eventLoop().schedule(new Runnable() {
                @Override
                public void run() {
                    ctx.writeAndFlush(messageToSend);
                }
            }, delayFor, delayUnit);
        }
        delayFor += delay;
    }
}

From source file:org.greencheek.caching.herdcache.memcached.elasticacheconfig.server.StringBasedServerHandler.java

License:Apache License

private void sendOne(final ChannelHandlerContext ctx) {
    final ByteBuf message = this.msg[index.getAndIncrement() % this.msg.length];

    ByteBuf messageCopy = message.copy();
    String messageCopyStr = messageCopy.toString(Charset.forName("UTF-8"));
    if (messageCopyStr.contains("${REMOTE_ADDR}")) {
        messageCopyStr = messageCopyStr.replace("${REMOTE_ADDR}", ctx.channel().remoteAddress().toString());
    }//  w w  w .j  a v a  2s.  c o  m

    final ByteBuf messageToSend = stringToByteBuf(messageCopyStr);

    if (delay < 1) {
        ctx.writeAndFlush(messageToSend);
    } else {
        ctx.channel().eventLoop().schedule(new Runnable() {
            @Override
            public void run() {
                ctx.writeAndFlush(messageToSend);
            }
        }, delay, delayUnit);
    }
}

From source file:org.hawkular.metrics.clients.ptrans.DemuxHandler.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf msg, @SuppressWarnings("rawtypes") List out)
        throws Exception {

    if (msg.readableBytes() < 5) {
        msg.clear();/* w  w  w. jav a  2s . c o m*/
        ctx.close();
        return;
    }
    ChannelPipeline pipeline = ctx.pipeline();

    String data = msg.toString(CharsetUtil.UTF_8);
    if (logger.isDebugEnabled()) {
        logger.debug("Incoming: [" + data + "]");
    }

    boolean done = false;

    if (data.contains("type=metric")) {
        pipeline.addLast(new SyslogEventDecoder());
        pipeline.addLast("forwarder", new RestForwardingHandler(configuration));
        pipeline.remove(this);
        done = true;
    } else if (!data.contains("=")) {
        String[] items = data.split(" |\\n");
        if (items.length % 3 == 0) {
            pipeline.addLast("encoder", new GraphiteEventDecoder());
            pipeline.addLast("forwarder", forwardingHandler);
            pipeline.remove(this);
            done = true;
        }
    }
    if (!done) {
        logger.warn("Unknown input [" + data + "], ignoring");
        msg.clear();
        ctx.close();
    }
}

From source file:org.hawkular.metrics.clients.ptrans.graphite.GraphiteEventDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf msg, List<Object> out) throws Exception {

    if (msg.readableBytes() < 1) {
        return; // Nothing to do
    }/*from   w w w  .  ja  v a 2s. c o  m*/

    String data = msg.toString(CharsetUtil.UTF_8);

    data = data.trim();

    String[] lines = data.split("\\n");
    if (lines.length == 0) {
        return;
    }
    List<SingleMetric> metricList = new ArrayList<>(lines.length);

    for (String line : lines) {
        String[] items = line.split(" ");
        if (items.length != 3) {
            logger.debug("Unknown data format for [" + data + "], skipping");
            return;
        }

        long secondsSinceEpoch = Long.parseLong(items[2]);
        long timestamp = secondsSinceEpoch * 1000L;
        SingleMetric metric = new SingleMetric(items[0], timestamp, Double.parseDouble(items[1]));
        metricList.add(metric);
    }
    out.add(metricList);
}

From source file:org.hawkular.metrics.clients.ptrans.statsd.StatsdDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, DatagramPacket msg, List<Object> out) throws Exception {
    ByteBuf buf = msg.content();

    if (buf.readableBytes() < 3) {
        // Not enough data - nothing to do.
        buf.clear();/*  www. j  a  va  2s  .c o  m*/
        ctx.close();
        return;
    }

    String packet = buf.toString(CharsetUtil.UTF_8).trim();
    if (!packet.contains(":")) {
        buf.clear();
        ctx.close();
        return;
    }

    String name = packet.substring(0, packet.indexOf(":"));
    String remainder = packet.substring(packet.indexOf(":") + 1);
    String valString;
    String type;
    if (remainder.contains("|")) {
        valString = remainder.substring(0, remainder.indexOf("|"));
        type = remainder.substring(remainder.indexOf("|") + 1);
    } else {
        valString = remainder;
        type = "";
    }
    Double value = Double.valueOf(valString);
    SingleMetric singleMetric = new SingleMetric(name, System.currentTimeMillis(), value,
            MetricType.from(type));
    out.add(singleMetric);
}

From source file:org.hawkular.metrics.clients.ptrans.syslog.DecoderUtil.java

License:Apache License

public static void decodeTheBuffer(ByteBuf data, List<Object> out) {

    if (data.readableBytes() < 1) {
        return; // Nothing to do
    }/*w w  w.j  a va  2  s  . co m*/

    String s = data.toString(CharsetUtil.UTF_8).trim();

    Matcher matcher = statsDPattern.matcher(s);
    if (matcher.matches()) {
        // StatsD packet
        String source = matcher.group(1);
        String val = matcher.group(2);
        List<SingleMetric> metrics = new ArrayList<>(1);
        SingleMetric metric = new SingleMetric(source, System.currentTimeMillis(), Double.valueOf(val));
        metrics.add(metric);
        return;
    }

    // Not statsD, so consider syslog. But first check if the message has the right format
    if (!s.contains("type=metric")) {
        return;
    }

    String text = extractPayload(s);

    if (text.contains("type=metric")) {

        text = text.trim();

        long now = System.currentTimeMillis();

        String[] entries = text.split(" ");

        List<SingleMetric> metrics = new ArrayList<>(entries.length);

        String cartName = null;
        if (text.contains("cart=")) {
            int pos = text.indexOf("cart=");
            cartName = text.substring(pos + 5, text.indexOf(' ', pos));
        }

        for (String entry : entries) {
            if (entry.equals("type=metric") || entry.startsWith("cart=")) {
                continue;
            }
            String[] keyVal = entry.split("=");
            double value = 0;
            try {
                value = Double.parseDouble(keyVal[1]);
                String source = keyVal[0];
                if (cartName != null) {
                    source = cartName + "." + source;
                }
                SingleMetric metric = new SingleMetric(source, now, value);
                metrics.add(metric);
            } catch (NumberFormatException e) {
                if (logger.isTraceEnabled()) {
                    logger.debug("Unknown number format for " + entry + ", skipping");
                }
            }
        }
        out.add(metrics);
    }
}

From source file:org.ireland.jnetty.JNettyServerHandler.java

License:Apache License

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

        if (is100ContinueExpected(request)) {
            send100Continue(ctx);/*from   w w  w  . j  av a 2  s  . co m*/
        }

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

        buf.append("VERSION: ").append(request.getProtocolVersion()).append("\r\n");
        buf.append("HOSTNAME: ").append(getHost(request, "unknown")).append("\r\n");
        buf.append("REQUEST_URI: ").append(request.getUri()).append("\r\n\r\n");

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

        QueryStringDecoder queryStringDecoder = new QueryStringDecoder(request.getUri());
        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.data();
        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 (String name : trailer.trailingHeaders().names()) {
                    for (String value : trailer.trailingHeaders().getAll(name)) {
                        buf.append("TRAILING HEADER: ");
                        buf.append(name).append(" = ").append(value).append("\r\n");
                    }
                }
                buf.append("\r\n");
            }

            writeResponse(ctx, trailer);
        }
    }
}

From source file:org.jboss.aerogear.webpush.netty.WebPushFrameListener.java

License:Apache License

private PushMessage buildPushMessage(final String subId, final ByteBuf data, final Http2Stream stream) {
    final String pushMessageId = UUID.randomUUID().toString();
    final Optional<String> receiptToken = stream.getProperty(pushReceiptPropertyKey);
    final Optional<Integer> ttl = stream.getProperty(ttlPropertyKey);
    return new DefaultPushMessage(pushMessageId, subId, receiptToken, data.toString(UTF_8), ttl);
}

From source file:org.kwh.tcp.server.ServerHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) {
    ByteBuf in = (ByteBuf) msg;
    try {/*from w  w  w .jav a 2  s .c o  m*/
        logger.info("New packet received");
        String receivedContent = in.toString(io.netty.util.CharsetUtil.US_ASCII);
        // send back message to the datalogger to notify it the bytes were
        // correctly received
        byte[] response = "@888\n".getBytes();
        final ByteBuf buffer = ctx.alloc().buffer(response.length);
        buffer.writeBytes(response);
        ctx.writeAndFlush(buffer);
        Consumer cons = new Consumer(receivedContent);
        es.submit(cons);

    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        in.release();
    }
}

From source file:org.lanternpowered.pingy.PingyProperties.java

License:MIT License

public void loadFavicon(Path directory) throws IOException {
    if (this.favicon.isEmpty()) {
        return;//from   ww  w  .j  a  va2s. co m
    }
    final Path faviconPath = directory.resolve(this.favicon);
    if (!Files.exists(faviconPath)) {
        throw new IOException("Favicon file does not exist.");
    }
    final BufferedImage image;
    try {
        image = ImageIO.read(faviconPath.toFile());
    } catch (IOException e) {
        throw new IOException("Unable to read the favicon file.");
    }
    if (image.getWidth() != 64) {
        throw new IOException("Favicon must be 64 pixels wide.");
    }
    if (image.getHeight() != 64) {
        throw new IOException("Favicon must be 64 pixels high.");
    }
    final ByteBuf buf = Unpooled.buffer();
    try {
        ImageIO.write(image, "PNG", new ByteBufOutputStream(buf));
        final ByteBuf base64 = Base64.encode(buf);

        try {
            this.faviconData = "data:image/png;base64," + base64.toString(StandardCharsets.UTF_8);
        } finally {
            base64.release();
        }
    } finally {
        buf.release();
    }
}