Example usage for io.netty.buffer ByteBuf capacity

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

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Introduction

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

Prototype

public abstract int capacity();

Source Link

Document

Returns the number of bytes (octets) this buffer can contain.

Usage

From source file:org.telegram.server.MTProtoDecoder.java

License:Open Source License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) {
    if (currentPacketLength == 0) {
        if (in.readableBytes() < 1) {
            return;
        }//ww w. j  a  va2s  .  c  o  m

        fByte = in.readByte();
        if ((byte) 0xef == fByte) {
            if (in.readableBytes() < 1) {
                return;
            }
            fByte = in.readByte();
        }
        if (fByte != 0x7f && fByte != -1) {
            if (fByte < 0) {
                currentPacketLength = ((int) fByte + 128) * 4;
            } else {
                currentPacketLength = (int) fByte * 4;
            }
        } else {
            if (in.readableBytes() < 3) {
                return;
            }
            byte[] lenBytes = new byte[4];
            lenBytes[3] = in.readByte();
            lenBytes[2] = in.readByte();
            lenBytes[1] = in.readByte();
            ByteBuffer wrapped = ByteBuffer.wrap(lenBytes);
            int len = wrapped.getInt();
            currentPacketLength = len * 4;
        }
    }

    if (in.readableBytes() < currentPacketLength) {
        if (in.capacity() < currentPacketLength) {
            in.capacity(in.capacity() + currentPacketLength);
        }
        return;
    }

    ProtocolBuffer received = new ProtocolBuffer(currentPacketLength);
    byte[] bytes = new byte[currentPacketLength];

    in.readBytes(bytes, 0, currentPacketLength);
    received.write(bytes);

    out.add(received);
    currentPacketLength = 0;
}

From source file:org.thingsplode.synapse.endpoint.handlers.HttpRequestIntrospector.java

License:Apache License

@Override
protected void channelRead0(ChannelHandlerContext ctx, HttpRequest msg) throws Exception {
    try {/*from www . j a v  a2s.  c o  m*/
        if (msg == null) {
            logger.warn("Message@Endpoint received: NULL");
        } else if (logger.isDebugEnabled()) {
            final StringBuilder hb = new StringBuilder();
            msg.headers().entries().forEach(e -> {
                hb.append(e.getKey()).append(" : ").append(e.getValue()).append("\n");
            });
            String payloadAsSring = null;
            if (msg instanceof FullHttpRequest) {
                ByteBuf content = ((FullHttpRequest) msg).content();
                byte[] dst = new byte[content.capacity()];
                content.copy().getBytes(0, dst);
                content.retain();
                payloadAsSring = new String(dst, Charset.forName("UTF-8"));
            }
            logger.debug("Message@Endpoint received: \n\n" + "Uri: " + msg.uri() + "\n" + "Method: "
                    + msg.method() + "\n" + hb.toString() + "\n" + "Payload -> "
                    + (!Util.isEmpty(payloadAsSring) ? payloadAsSring + "\n" : "EMPTY\n"));
        }
    } catch (Throwable th) {
        logger.error(th.getClass().getSimpleName() + " caught while introspecting request, with message: "
                + th.getMessage(), th);
    }
    if (msg != null && msg instanceof FullHttpRequest) {
        ((FullHttpRequest) msg).content().retain();
    }
    ctx.fireChannelRead(msg);
}

From source file:org.thingsplode.synapse.endpoint.handlers.RequestHandler.java

License:Apache License

@Override
protected void channelRead0(ChannelHandlerContext ctx, Request request) throws Exception {
    Response response = null;//from  w  w  w.ja  v a 2 s.c om
    boolean fileDownload = filePattern.matcher(request.getHeader().getUri().getPath()).find();
    if (!fileDownload) {
        try {
            if (request.getBody() != null && (request.getBody() instanceof ByteBuf)) {
                //the body is in unmarshalled
                //eg. http case
                ByteBuf content = (ByteBuf) request.getBody();
                byte[] dst = new byte[content.capacity()];
                content.getBytes(0, dst);
                String jsonBody = new String(dst, Charset.forName("UTF-8"));
                response = registry.invokeWithParsable(request.getHeader(), jsonBody);
            } else {
                //the complete body is unmarshalled already for an object
                //eg. websocket case
                response = registry.invokeWithObject(request.getHeader(), request.getBody());
            }
            //else {
            //    response = new Response(new Response.ResponseHeader(request.getHeader(), HttpResponseStatus.valueOf(HttpStatus.BAD_REQUEST.value()), new MediaType("text/plain; charset=UTF-8")), RequestHandler.class.getSimpleName() + ": Body type not supported.");
            //}
        } catch (MethodNotFoundException mex) {
            //simple listing, no stack trace (normal issue)
            logger.warn("Couldn't process request due to " + mex.getClass().getSimpleName() + " with message: "
                    + mex.getMessage());
            response = new Response(
                    new Response.ResponseHeader(request.getHeader(),
                            HttpResponseStatus.valueOf(mex.getResponseStatus().value()), MediaType.TEXT_PLAIN),
                    mex.getClass().getSimpleName() + ": " + mex.getMessage());
        } catch (SynapseException ex) {
            //it could be an internal issue
            logger.error("Error processing REST request: " + ex.getMessage(), ex);
            response = new Response(
                    new Response.ResponseHeader(request.getHeader(),
                            HttpResponseStatus.valueOf(ex.getResponseStatus().value()), MediaType.TEXT_PLAIN),
                    ex.getClass().getSimpleName() + ": " + ex.getMessage());
        }
    }

    if (fileDownload || response == null || isFileDownloadRetriable(response)) {
        FileRequest fr = new FileRequest(request.getHeader());
        ctx.fireChannelRead(fr);
    } else {
        ctx.fireChannelRead(response);
    }
}

From source file:org.thingsplode.synapse.proxy.handlers.HttpResponse2ResponseDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, HttpResponse httpResponse, List<Object> out) throws Exception {
    if (!httpResponse.decoderResult().isSuccess()) {
        logger.warn("HTTP Resonse decoding was not succesfull.");
    }//from www.  j  ava 2 s  .  co m
    //todo: convert to commands too
    Response rsp = new Response(new Response.ResponseHeader(httpResponse.status()));
    rsp.getHeader().addAllProperties(httpResponse.headers().entries());
    rsp.getHeader().setMsgId(httpResponse.headers().get(AbstractMessage.PROP_MESSAGE_ID));
    rsp.getHeader().setCorrelationId(httpResponse.headers().get(AbstractMessage.PROP_CORRELATION_ID));
    rsp.getHeader().setProtocolVersion(httpResponse.headers().get(AbstractMessage.PROP_PROTOCOL_VERSION));
    rsp.getHeader().setContentType(new MediaType(httpResponse.headers().get(HttpHeaderNames.CONTENT_TYPE)));
    rsp.getHeader().setRemoteAddress(ctx.channel().remoteAddress());

    if (httpResponse instanceof FullHttpResponse && marshalledBodyExpected(httpResponse.status())) {
        ByteBuf contentBuffer = ((FullHttpResponse) httpResponse).content();
        byte[] dst = new byte[contentBuffer.capacity()];
        contentBuffer.getBytes(0, dst);
        String jsonResponse = new String(dst, Charset.forName("UTF-8"));
        String bodyType = httpResponse.headers().get(AbstractMessage.PROP_BODY_TYPE);
        if (Util.notEmpty(bodyType)) {
            try {
                Class clz = Class.forName(bodyType);
                Object payload = EndpointProxy.SERIALIZATION_SERVICE.getSerializer(getMediaType(httpResponse))
                        .unMarshall(clz, jsonResponse);
                rsp.setBody(payload);
            } catch (ClassNotFoundException cnfe) {
                logger.warn("There's a body of type [" + bodyType
                        + "] on the response, but the corresponding class cannot be found. Skipping the deserialization of the body.");
            }
        } else if (logger.isDebugEnabled() && Util.isEmpty(bodyType) && Util.notEmpty(jsonResponse)
                && !"{ }".equals(jsonResponse)) {
            logger.warn("Body serialization will be skipped due to missing body type info on the header.");
        }
    }
    out.add(rsp);
}

From source file:org.thingsplode.synapse.proxy.handlers.HttpResponseIntrospector.java

License:Apache License

@Override
protected void channelRead0(ChannelHandlerContext ctx, HttpResponse msg) throws Exception {
    if (msg != null) {
        final StringBuilder hb = new StringBuilder();
        msg.headers().entries().forEach(e -> {
            hb.append(e.getKey()).append(" : ").append(e.getValue()).append("\n");
        });//from  www  .j a  va2  s . c  om
        String payloadAsSring = null;
        if (msg instanceof FullHttpResponse) {
            ByteBuf content = ((FullHttpResponse) msg).content();
            byte[] dst = new byte[content.capacity()];
            content.copy().getBytes(0, dst);
            content.retain();
            payloadAsSring = new String(dst, Charset.forName("UTF-8"));
        }
        logger.debug("Message@Proxy received [" + msg.getClass().getSimpleName() + "]: \n\n" + "Status: "
                + msg.status() + "\n" + hb.toString() + "\n" + "Payload -> ["
                + (!Util.isEmpty(payloadAsSring) ? payloadAsSring : "EMPTY") + "]\n");
    }
    ctx.fireChannelRead(msg);
}

From source file:org.tiger.netty.rpc.all.codec.NettyMessageDecoder.java

License:Apache License

private void print(ByteBuf sendBuf) {
    if (sendBuf == null)
        return;//from w w  w.j  a v  a2s.c  o m

    /*while(sendBuf.isReadable()){
    System.out.print(sendBuf.readByte()+"  ");
    //System.out.flush();
     }*/
    //System.out.println("ascii>>"+sendBuf.toString(CharsetUtil.US_ASCII));

    if (sendBuf != null && sendBuf.capacity() > 0) {
        byte[] bt = new byte[sendBuf.capacity()];
        sendBuf.getBytes(0, bt);
        System.out.println("bt>" + Arrays.toString(bt));
    } else {
        System.out.println("***>>" + sendBuf);
    }

}

From source file:org.tiger.netty.rpc.all.codec.NettyMessageEncoder.java

License:Apache License

private void print(ByteBuf sendBuf) {
    byte[] bt = new byte[sendBuf.capacity()];
    sendBuf.getBytes(0, bt);/*  w ww.  ja  v  a 2 s . co  m*/
    System.out.println("bt>" + Arrays.toString(bt));
}

From source file:org.traccar.protocol.At2000ProtocolDecoder.java

License:Apache License

@Override
protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {

    ByteBuf buf = (ByteBuf) msg;

    if (buf.getUnsignedByte(buf.readerIndex()) == 0x01) {
        buf.readUnsignedByte(); // codec id
    }/*from  www  .  j av  a  2 s.  c om*/

    int type = buf.readUnsignedByte();
    buf.readUnsignedMediumLE(); // length
    buf.skipBytes(BLOCK_LENGTH - 1 - 3);

    if (type == MSG_DEVICE_ID) {

        String imei = buf.readSlice(15).toString(StandardCharsets.US_ASCII);
        if (getDeviceSession(channel, remoteAddress, imei) != null) {

            byte[] iv = new byte[BLOCK_LENGTH];
            buf.readBytes(iv);
            IvParameterSpec ivSpec = new IvParameterSpec(iv);

            SecretKeySpec keySpec = new SecretKeySpec(
                    DataConverter.parseHex("000102030405060708090a0b0c0d0e0f"), "AES");

            cipher = Cipher.getInstance("AES/CBC/NoPadding");
            cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec);

            byte[] data = new byte[BLOCK_LENGTH];
            buf.readBytes(data);
            cipher.update(data);

        }

    } else if (type == MSG_TRACK_RESPONSE) {

        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
        if (deviceSession == null) {
            return null;
        }

        if (buf.capacity() <= BLOCK_LENGTH) {
            return null; // empty message
        }

        List<Position> positions = new LinkedList<>();

        byte[] data = new byte[buf.capacity() - BLOCK_LENGTH];
        buf.readBytes(data);
        buf = Unpooled.wrappedBuffer(cipher.update(data));
        try {
            while (buf.readableBytes() >= 63) {

                Position position = new Position(getProtocolName());
                position.setDeviceId(deviceSession.getDeviceId());

                buf.readUnsignedShortLE(); // index
                buf.readUnsignedShortLE(); // reserved

                position.setValid(true);

                position.setTime(new Date(buf.readLongLE() * 1000));

                position.setLatitude(buf.readFloatLE());
                position.setLongitude(buf.readFloatLE());
                position.setAltitude(buf.readFloatLE());
                position.setSpeed(UnitsConverter.knotsFromKph(buf.readFloatLE()));
                position.setCourse(buf.readFloatLE());

                buf.readUnsignedIntLE(); // geozone event
                buf.readUnsignedIntLE(); // io events
                buf.readUnsignedIntLE(); // geozone value
                buf.readUnsignedIntLE(); // io values
                buf.readUnsignedShortLE(); // operator

                position.set(Position.PREFIX_ADC + 1, buf.readUnsignedShortLE());
                position.set(Position.PREFIX_ADC + 1, buf.readUnsignedShortLE());

                position.set(Position.KEY_POWER, buf.readUnsignedShortLE() * 0.001);

                buf.readUnsignedShortLE(); // cid
                position.set(Position.KEY_RSSI, buf.readUnsignedByte());
                buf.readUnsignedByte(); // current profile

                position.set(Position.KEY_BATTERY, buf.readUnsignedByte());
                position.set(Position.PREFIX_TEMP + 1, buf.readUnsignedByte());
                position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());

                positions.add(position);

            }
        } finally {
            buf.release();
        }

        return positions;

    }

    if (type == MSG_DEVICE_ID) {
        sendRequest(channel);
    }

    return null;
}

From source file:org.traccar.protocol.MeiligaoProtocolDecoder.java

License:Apache License

private static void sendResponse(Channel channel, SocketAddress remoteAddress, ByteBuf id, int type,
        ByteBuf msg) {/*from w  w w .jav a  2  s.c  om*/

    if (channel != null) {
        ByteBuf buf = Unpooled.buffer(2 + 2 + id.readableBytes() + 2 + msg.readableBytes() + 2 + 2);

        buf.writeByte('@');
        buf.writeByte('@');
        buf.writeShort(buf.capacity());
        buf.writeBytes(id);
        buf.writeShort(type);
        buf.writeBytes(msg);
        msg.release();
        buf.writeShort(Checksum.crc16(Checksum.CRC16_CCITT_FALSE, buf.nioBuffer()));
        buf.writeByte('\r');
        buf.writeByte('\n');

        channel.writeAndFlush(new NetworkMessage(buf, remoteAddress));
    }
}

From source file:org.traccar.protocol.NavigilProtocolDecoder.java

License:Apache License

private void sendAcknowledgment(Channel channel, int sequenceNumber) {
    ByteBuf data = Unpooled.buffer(4);/*from   w  w  w  .  j  a va2  s .co  m*/
    data.writeShortLE(sequenceNumber);
    data.writeShortLE(0); // OK

    ByteBuf header = Unpooled.buffer(20);
    header.writeByte(1);
    header.writeByte(0);
    header.writeShortLE(senderSequenceNumber++);
    header.writeShortLE(MSG_ACKNOWLEDGEMENT);
    header.writeShortLE(header.capacity() + data.capacity());
    header.writeShortLE(0);
    header.writeShortLE(Checksum.crc16(Checksum.CRC16_CCITT_FALSE, data.nioBuffer()));
    header.writeIntLE(0);
    header.writeIntLE((int) (System.currentTimeMillis() / 1000) + LEAP_SECONDS_DELTA);

    if (channel != null) {
        channel.writeAndFlush(
                new NetworkMessage(Unpooled.wrappedBuffer(header, data), channel.remoteAddress()));
    }
}