Example usage for io.netty.buffer ByteBuf isReadable

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

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Introduction

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

Prototype

public abstract boolean isReadable();

Source Link

Document

Returns true if and only if (this.writerIndex - this.readerIndex) is greater than 0 .

Usage

From source file:com.quavo.osrs.network.protocol.codec.update.UpdateDecoder.java

License:Open Source License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    if (!in.isReadable() || in.readableBytes() < 4) {
        return;//  w  w w.  j  a  v a 2s  .co  m
    }

    Optional<UpdateType> request = UpdateType.getType(in.readUnsignedByte());
    if (request.isPresent()) {
        UpdateType updateType = request.get();
        switch (updateType) {
        case LOW_PRIORITY_UPDATE:
        case HIGH_PRIORITY_UPDATE:
            int uid = in.readUnsignedMedium();
            int type = (uid >> 16);
            int id = (uid & 0xffff);

            out.add(new UpdateRequest(this, type, id, updateType == UpdateType.HIGH_PRIORITY_UPDATE));
            break;
        case XOR_ENCRYPTION_UPDATE:
            int key = in.readUnsignedByte();
            in.readUnsignedShort();
            out.add(new XOREncryptionRequest(this, key));
            break;
        }
    } else {
        in.readUnsignedMedium();
    }
}

From source file:com.quavo.util.buf.ByteBufUtils.java

License:Open Source License

/**
 * Converts data from a {@link ByteBuf} into a readable string.
 *
 * @param buffer The {@link ByteBuf}./* w w w.j av  a  2 s  . c  o  m*/
 * @return The string.
 */
public static String readString(ByteBuf buffer) {
    StringBuilder bldr = new StringBuilder();
    byte b;
    while (buffer.isReadable() && (b = buffer.readByte()) != STRING_TERMINATOR) {
        bldr.append((char) b);
    }
    return bldr.toString();
}

From source file:com.quavo.util.buf.ByteBufUtils.java

License:Open Source License

/**
 * Converts data from a {@link ByteBuf} into a readable jag string.
 *
 * @param buffer The {@link ByteBuf}.// w  w  w . ja va  2s .  co m
 * @return The string.
 */
public static String readJagString(ByteBuf buffer) {
    StringBuilder bldr = new StringBuilder();
    byte b;
    buffer.readByte();
    while (buffer.isReadable() && (b = buffer.readByte()) != STRING_TERMINATOR) {
        bldr.append((char) b);
    }
    return bldr.toString();
}

From source file:com.ReceiveFileHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    ByteBuf in = (ByteBuf) msg;

    try {/*www .  j av  a  2s  .  co  m*/
        while (in.isReadable()) {
            in.readBytes(bos, in.readableBytes());
        }
        bos.flush();
    } finally {
        in.release();
    }
}

From source file:com.sample.netty.socket.utils.MessageDecoder.java

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) {
    if (in.readableBytes() < 4) {
        return;//from w ww  .  j  a v a 2s .  com
    }
    StringBuilder sb = new StringBuilder();
    while (in.isReadable()) {
        sb.append((char) in.readByte());
    }
    out.add(sb.toString());
}

From source file:com.seagate.kinetic.simulator.io.provider.nio.http.HttpMessageServiceHandler.java

License:Open Source License

@Override
protected void channelRead0(ChannelHandlerContext ctx, Object msg) throws Exception {

    int contentLength = 0;

    if (msg instanceof HttpRequest) {
        HttpRequest request = (HttpRequest) msg;

        logger.finest("protocol version: " + request.getProtocolVersion());

        logger.finest("host: " + getHost(request, "unknown"));

        logger.finest("REQUEST_URI: " + request.getUri());

        List<Map.Entry<String, String>> headers = request.headers().entries();

        String lenstr = request.headers().get(HttpHeaders.Names.CONTENT_LENGTH);
        contentLength = Integer.parseInt(lenstr);

        logger.finest("content length=" + contentLength);

        if (!headers.isEmpty()) {
            for (Map.Entry<String, String> h : request.headers().entries()) {
                String key = h.getKey();
                String value = h.getValue();
                logger.finest("HEADER: " + key + " = " + value);
            }//from   ww w  . j a v  a2s  . com
        }

        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) {
                    logger.finest("PARAM: " + key + " = " + val);
                }
            }

        }

    }

    // create extended builder
    ExtendedMessage.Builder extendedMessage = ExtendedMessage.newBuilder();

    if (msg instanceof HttpContent) {

        HttpContent httpContent = (HttpContent) msg;

        ByteBuf content = httpContent.content();
        if (content.isReadable()) {

            byte[] body = new byte[contentLength];
            content.getBytes(0, body);

            // read from serialized bytes
            extendedMessage.mergeFrom(body);
        }

        // build message
        ExtendedMessage extended = extendedMessage.build();

        if (logger.isLoggable(Level.FINEST)) {
            logger.finest("received request: " + extended);
        }

        // create kinetic message for processing
        KineticMessage km = new KineticMessage();

        // set interface message
        km.setMessage(extended.getInterfaceMessage());

        // get command bytes
        ByteString commandBytes = extendedMessage.getInterfaceMessage().getCommandBytes();

        // build command
        Command.Builder commandBuilder = Command.newBuilder();

        try {
            commandBuilder.mergeFrom(commandBytes);
            km.setCommand(commandBuilder.build());
        } catch (InvalidProtocolBufferException e) {
            logger.log(Level.WARNING, e.getMessage(), e);
        }

        // set value
        if (extended.hasValue()) {
            km.setValue(extended.getValue().toByteArray());
        }

        // process request
        KineticMessage kmresp = this.lcservice.processRequest(km);

        // construct response message
        ExtendedMessage.Builder extendedResponse = ExtendedMessage.newBuilder();

        // set interface message
        extendedResponse.setInterfaceMessage((Message.Builder) kmresp.getMessage());

        // set value
        if (kmresp.getValue() != null) {
            extendedResponse.setValue(ByteString.copyFrom(kmresp.getValue()));
        }

        // get serialized value
        ByteBuf data = Unpooled.copiedBuffer(extendedResponse.build().toByteArray());

        FullHttpResponse httpResponse = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK,
                data);

        httpResponse.headers().set(CONTENT_TYPE, "application/octet-stream");

        httpResponse.headers().set(HttpHeaders.Names.CONTENT_ENCODING, HttpHeaders.Values.BINARY);

        httpResponse.headers().set(CONTENT_LENGTH, httpResponse.content().readableBytes());

        httpResponse.headers().set(CONNECTION, HttpHeaders.Values.KEEP_ALIVE);

        // send response message
        ctx.writeAndFlush(httpResponse);

        if (logger.isLoggable(Level.FINEST)) {
            logger.finest("wrote and flushed response: " + kmresp);
        }
    }
}

From source file:com.seventh_root.ld33.client.network.LD33ClientBoundPacketDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    byte[] output = new byte[in.readableBytes()];
    in.readBytes(output);/*from  www . j  a  v a  2 s  .  c  o  m*/
    System.out.println(Arrays.toString(output));
    in.resetReaderIndex();
    while (in.isReadable()) {
        int id = in.readInt();
        switch (id) {
        case 0:
            byte[] encodedPublicKey = new byte[in.readInt()];
            in.readBytes(encodedPublicKey);
            out.add(new PublicKeyClientBoundPacket(encodedPublicKey));
            break;
        case 1:
            out.add(new PlayerLoginClientBoundPacket());
            break;
        case 2:
            String joiningPlayerUUID = readString(in);
            String joiningPlayerName = readString(in);
            int joiningPlayerResources = in.readInt();
            out.add(new PlayerJoinClientBoundPacket(UUID.fromString(joiningPlayerUUID), joiningPlayerName,
                    joiningPlayerResources));
            break;
        case 3:
            String quittingPlayerUUID = readString(in);
            String quittingPlayerName = readString(in);
            out.add(new PlayerQuitClientBoundPacket(UUID.fromString(quittingPlayerUUID), quittingPlayerName));
            break;
        case 4:
            String loginResponseMessage = readString(in);
            boolean loginSuccess = in.readBoolean();
            out.add(new PlayerLoginResponseClientBoundPacket(loginResponseMessage, loginSuccess));
            break;
        case 5:
            String spawningUnitUUID = readString(in);
            String spawningUnitPlayerUUID = readString(in);
            int spawningUnitX = in.readInt();
            int spawningUnitY = in.readInt();
            String type = readString(in);
            long spawningUnitCompletionTime = in.readLong();
            Unit unit;
            switch (type) {
            case "wall":
                unit = new Wall(UUID.fromString(spawningUnitUUID),
                        Player.getByUUID(null, UUID.fromString(spawningUnitPlayerUUID)),
                        client.getWorldPanel().getWorld().getTileAt(spawningUnitX, spawningUnitY),
                        spawningUnitCompletionTime);
                break;
            case "dragon":
                unit = new Dragon(UUID.fromString(spawningUnitUUID),
                        Player.getByUUID(null, UUID.fromString(spawningUnitPlayerUUID)),
                        client.getWorldPanel().getWorld().getTileAt(spawningUnitX, spawningUnitY),
                        spawningUnitCompletionTime);
                break;
            case "flag":
                unit = new Flag(UUID.fromString(spawningUnitUUID),
                        Player.getByUUID(null, UUID.fromString(spawningUnitPlayerUUID)),
                        client.getWorldPanel().getWorld().getTileAt(spawningUnitX, spawningUnitY),
                        spawningUnitCompletionTime);
                break;
            default:
                unit = null;
                break;
            }
            out.add(new UnitSpawnClientBoundPacket(unit));
            break;
        case 6:
            String movingUnitUUID = readString(in);
            int movingUnitX = in.readInt();
            int movingUnitY = in.readInt();
            int movingUnitTargetX = in.readInt();
            int movingUnitTargetY = in.readInt();
            out.add(new UnitMoveClientBoundPacket(
                    Unit.getByUUID(null, client.getWorldPanel().getWorld(), UUID.fromString(movingUnitUUID)),
                    movingUnitX, movingUnitY, movingUnitTargetX, movingUnitTargetY));
            break;
        case 7:
            String chatMessage = readString(in);
            out.add(new ChatMessageClientBoundPacket(chatMessage));
            break;
        case 8:
            String purchasingPlayerUUID = readString(in);
            int purchasedUnitX = in.readInt();
            int purchasedUnitY = in.readInt();
            String purchasedUnitType = readString(in);
            out.add(new UnitPurchaseClientBoundPacket(UUID.fromString(purchasingPlayerUUID), purchasedUnitX,
                    purchasedUnitY, purchasedUnitType));
            break;
        }
    }
}

From source file:com.seventh_root.ld33.server.network.LD33ServerBoundPacketDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    while (in.isReadable()) {
        int id = in.readInt();
        switch (id) {
        case 0://from  w w  w  .  jav  a2s  .  c o m
            byte[] encodedPublicKey = new byte[in.readInt()];
            in.readBytes(encodedPublicKey);
            out.add(new PublicKeyServerBoundPacket(encodedPublicKey));
            break;
        case 1:
            String loggingInPlayerName = readString(in);
            byte[] encryptedPassword = new byte[in.readInt()];
            in.readBytes(encryptedPassword);
            boolean signUp = in.readBoolean();
            out.add(new PlayerLoginServerBoundPacket(loggingInPlayerName, encryptedPassword, signUp));
            break;
        case 2:
            out.add(new PlayerJoinServerBoundPacket());
            break;
        case 3:
            out.add(new PlayerQuitServerBoundPacket());
            break;
        case 4:
            String loginResponseMessage = readString(in);
            boolean loginSuccess = in.readBoolean();
            out.add(new PlayerLoginResponseServerBoundPacket(loginResponseMessage, loginSuccess));
            break;
        case 5:
            String spawningUnitUUID = readString(in);
            String spawningUnitPlayerUUID = readString(in);
            int spawningUnitX = in.readInt();
            int spawningUnitY = in.readInt();
            String spawningUnitType = readString(in);
            long spawningUnitCompletionTime = in.readLong();
            Unit spawningUnit;
            switch (spawningUnitType) {
            case "wall":
                spawningUnit = new Wall(UUID.fromString(spawningUnitUUID),
                        Player.getByUUID(null, UUID.fromString(spawningUnitPlayerUUID)),
                        server.getWorld().getTileAt(spawningUnitX, spawningUnitY), spawningUnitCompletionTime);
                break;
            case "dragon":
                spawningUnit = new Dragon(UUID.fromString(spawningUnitUUID),
                        Player.getByUUID(null, UUID.fromString(spawningUnitPlayerUUID)),
                        server.getWorld().getTileAt(spawningUnitX, spawningUnitY), spawningUnitCompletionTime);
                break;
            case "flag":
                spawningUnit = new Flag(UUID.fromString(spawningUnitUUID),
                        Player.getByUUID(null, UUID.fromString(spawningUnitPlayerUUID)),
                        server.getWorld().getTileAt(spawningUnitX, spawningUnitY), spawningUnitCompletionTime);
                break;
            default:
                spawningUnit = null;
                break;
            }
            out.add(new UnitSpawnServerBoundPacket(spawningUnit));
            break;
        case 6:
            String movingUnitUUID = readString(in);
            int movingUnitTargetX = in.readInt();
            int movingUnitTargetY = in.readInt();
            out.add(new UnitMoveServerBoundPacket(Unit.getByUUID(server.getDatabaseConnection(),
                    server.getWorld(), UUID.fromString(movingUnitUUID)), movingUnitTargetX, movingUnitTargetY));
            break;
        case 7:
            String chatMessage = readString(in);
            out.add(new ChatMessageServerBoundPacket(chatMessage));
            break;
        case 8:
            int purchasedUnitX = in.readInt();
            int purchasedUnitY = in.readInt();
            String purchasedUnitType = readString(in);
            out.add(new UnitPurchaseServerBoundPacket(purchasedUnitX, purchasedUnitY, purchasedUnitType));
            break;
        }
    }
}

From source file:com.sohu.jafka.http.HttpServerHandler.java

License:Apache License

@Override
protected void channelRead0(ChannelHandlerContext ctx, Object msg) throws Exception {
    if (msg instanceof HttpRequest) {
        HttpRequest request = this.request = (HttpRequest) msg;

        if (HttpHeaders.is100ContinueExpected(request)) {
            send100Continue(ctx);//from ww w. ja  v  a 2  s.co m
        }
        body = new ByteArrayOutputStream(64);
        args = new HashMap<String, String>(4);
        //
        if (request.getMethod() != HttpMethod.POST) {
            sendStatusMessage(ctx, HttpResponseStatus.METHOD_NOT_ALLOWED, "POST METHOD REQUIRED");
            return;
        }
        HttpHeaders headers = request.headers();
        String contentType = headers.get("Content-Type");
        // ? text or octstream
        args.put("request_key", headers.get("request_key"));
        args.put("topic", headers.get("topic"));
        args.put("partition", headers.get("partition"));
    }

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

        ByteBuf content = httpContent.content();
        if (content.isReadable()) {
            //body.write(content.array());
            content.readBytes(body, content.readableBytes());
            //body.append(content.toString(CharsetUtil.UTF_8));
        }

        if (msg instanceof LastHttpContent) {
            //process request
            if (server.handler != null) {
                server.handler.handle(args, body.toByteArray());
            }
            if (!writeResponse(ctx)) {
                // If keep-alive is off, close the connection once the content is fully written.
                ctx.writeAndFlush(Unpooled.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
            }
            body = null;
            args = null;
        }
    }
}

From source file:com.spotify.ffwd.json.JsonObjectMapperDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    if (!in.isReadable()) {
        return;//from   w  w w  .  j a va  2  s .c om
    }

    final Object frame;

    try {
        frame = decode0(in, out);
    } catch (Exception e) {
        log.error("Discarding invalid frame", e);
        return;
    }

    out.add(frame);
}