Example usage for io.netty.channel ChannelHandlerContext fireChannelRead

Introduction

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

Prototype

@Override
    ChannelHandlerContext fireChannelRead(Object msg);

Source Link

Usage

From source file:org.dcache.xrootd.tpc.TpcClientConnectHandler.java

License:Open Source License

@Override
protected void doOnLoginResponse(ChannelHandlerContext ctx, InboundLoginResponse response)
        throws XrootdException {
    int status = response.getStatus();
    ChannelId id = ctx.channel().id();/*from ww w.j  a  va  2s  . c  om*/
    int streamId = client.getStreamId();
    XrootdTpcInfo tpcInfo = client.getInfo();
    LOGGER.trace("Login response on {}, channel {}, stream {}," + " received; sessionId {}, status {}.",
            tpcInfo.getSrc(), id, streamId, response.getSessionId(), status);

    if (status == kXR_ok) {
        client.setSessionId(response.getSessionId());

        List<SecurityInfo> protocols = response.getProtocols();
        Map<String, ChannelHandler> handlers = client.getAuthnHandlers();

        /*
         *  Name of this handler
         */
        String last = "connect";
        ChannelPipeline pipeline = ctx.pipeline();
        for (SecurityInfo protocol : protocols) {
            String name = protocol.getProtocol();
            ChannelHandler handler = handlers.get(name);
            if (handler != null) {
                pipeline.addAfter(last, name, handler);
            }

            LOGGER.trace(
                    "Login to {}, channel {}, stream {}, sessionId {}, " + "adding {} handler to pipeline.",
                    tpcInfo.getSrc(), id, streamId, client.getSessionId(), name);

            last = name;
        }

        LOGGER.trace("Login to {}, channel {}, stream {}," + " succeeded; sessionId {}; "
                + "passing to next handler.", tpcInfo.getSrc(), id, streamId, client.getSessionId());

        ctx.fireChannelRead(response);
    } else {
        String error = String.format("Login to %s failed: status %d.", tpcInfo.getSrc(), status);
        throw new XrootdException(kXR_error, error);
    }
}

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From source file:org.eclipse.milo.opcua.stack.server.transport.websocket.OpcServerWebSocketFrameHandler.java

License:Open Source License

@Override
protected void channelRead0(ChannelHandlerContext ctx, WebSocketFrame msg) throws Exception {
    if (Stack.WSS_PROTOCOL_BINARY.equalsIgnoreCase(subprotocol)) {
        // Pass the binary contents to the UA Secure Conversation handlers

        ctx.fireChannelRead(msg.content().retain());
    } else if (Stack.WSS_PROTOCOL_JSON.equalsIgnoreCase(subprotocol)) {
        // TODO End of the pipeline; decode and deliver
        String text = ((TextWebSocketFrame) msg).text();

        throw new IllegalArgumentException("subprotocol: " + subprotocol);
    } else {//  w ww .j a  v a  2 s  . com
        ctx.close();
    }
}

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From source file:org.eclipse.neoscada.protocol.iec60870.apci.MessageChannel.java

License:Open Source License

private void processInformationTransfer(final ChannelHandlerContext ctx, final Object msg) {
    final List<Object> out = new LinkedList<>();

    logger.trace("Passing to manager: {}", msg);
    final ByteBuf errorData = this.manager.receiveMessage((InformationTransfer) msg, out);
    if (errorData != null) {
        logger.debug("Write error reply");
        writeMessageToChannel(ctx, errorData, null);
        ctx.flush();//from   ww w  . j a v  a  2 s  . c om
    }

    for (final Object newMsg : out) {
        logger.trace("Passing message: {}", newMsg);
        ctx.fireChannelRead(newMsg);
    }
}

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From source file:org.eclipse.neoscada.protocol.iec60870.server.data.DataModuleHandler.java

License:Open Source License

@Override
public void channelRead(final ChannelHandlerContext ctx, final Object msg) throws Exception {
    logger.debug("channelRead - msg: {}, ctx: {}", msg, ctx);

    try {//from  ww w  .j  a v a 2  s . c om
        if (msg == DataTransmissionMessage.REQUEST_START) {
            startDataTransmission(ctx);
        } else if (msg == DataTransmissionMessage.REQUEST_STOP) {
            stopDataTransmission(ctx);
        } else if (msg instanceof ReadCommand) {
            handleReadCommand(ctx, (ReadCommand) msg);
        } else if (msg instanceof InterrogationCommand) {
            handleInterrogationCommand(ctx, (InterrogationCommand) msg);
        } else if (msg instanceof ValueCommandMessage) {
            handleWriteValue(ctx, (ValueCommandMessage) msg);
        } else {
            // otherwise pass the message on to the next handler
            ctx.fireChannelRead(msg);
        }
    } catch (final Exception e) {
        logger.warn("Failed to process message", e);
        throw new InvocationTargetException(e);
    }
}

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From source file:org.eclipse.scada.protocol.iec60870.server.data.DataModuleHandler.java

License:Open Source License

@Override
public void channelRead(final ChannelHandlerContext ctx, final Object msg) throws Exception {
    logger.debug("channelRead - msg: {}, ctx: {}", msg, ctx);

    try {/*from w  w  w .j  a  v  a 2s .  c  o  m*/
        if (msg == DataTransmissionMessage.REQUEST_START) {
            startDataTransmission(ctx);
        } else if (msg == DataTransmissionMessage.REQUEST_STOP) {
            stopDataTransmission(ctx);
        } else if (msg instanceof ReadCommand) {
            handleReadCommand(ctx, (ReadCommand) msg);
        } else if (msg instanceof InterrogationCommand) {
            handleInterrogationCommand(ctx, (InterrogationCommand) msg);
        } else if (msg instanceof SingleCommand) {
            handleWriteCommand(ctx, (SingleCommand) msg);
        } else if (msg instanceof SetPointCommandShortFloatingPoint) {
            handleWriteValue(ctx, (SetPointCommandShortFloatingPoint) msg);
        } else if (msg instanceof SetPointCommandScaledValue) {
            handleWriteValue(ctx, (SetPointCommandScaledValue) msg);
        } else {
            // otherwise pass the message on to the next handler
            ctx.fireChannelRead(msg);
        }
    } catch (final Exception e) {
        logger.warn("Failed to process message", e);
        throw new InvocationTargetException(e);
    }
}

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From source file:org.eclipse.scada.protocol.relp.FrameCodec.java

License:Open Source License

private void processTRAILER(final ChannelHandlerContext ctx, final byte b, final ByteBuf msg) {
    if (b != Constants.LF) {
        throw new CodecException(
                String.format("Expected trailer byte (LF) but found 0x%02X: Remaining buffer: %s", b,
                        ByteBufUtil.hexDump(msg, msg.readerIndex(), msg.readableBytes())));
    }//from w ww. j  ava  2 s .co m

    final int length = ctx.attr(ATTR_EXPECTED_LENGTH).get();
    final long txnr = Long.parseLong(ctx.attr(ATTR_TXNR_BUFFER).get().toString(TXNR_CHARSET));
    final String command = ctx.attr(ATTR_COMMAND_BUFFER).get().toString(COMMAND_CHARSET);
    final ByteBuf data = ctx.attr(ATTR_DATA_BUFFER).get().readSlice(length);

    final Frame frame = new Frame(txnr, command, data);

    ctx.fireChannelRead(frame);

    ctx.attr(ATTR_STATE).set(State.TXNR);
    ctx.attr(ATTR_TXNR_BUFFER).get().clear();
    ctx.attr(ATTR_COMMAND_BUFFER).get().clear();
    ctx.attr(ATTR_LENGTH_BUFFER).get().clear();
    ctx.attr(ATTR_DATA_BUFFER).get().clear();
}

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From source file:org.eclipse.scada.protocol.relp.FrameProcessor.java

License:Open Source License

private void handleSyslog(final ChannelHandlerContext ctx, final Frame frame) {
    ctx.fireChannelRead(new SyslogRequest(frame.getTransactionId(), frame.getData()));
}

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From source file:org.eclipse.scada.protocol.relp.FrameProcessor.java

License:Open Source License

protected void handleOpen(final ChannelHandlerContext ctx, final Frame frame) {
    final String data = frame.getData().toString(CHARSET_OPEN);
    final StringTokenizer tok = new StringTokenizer(data, Constants.LF_STRING);

    final Map<String, String> offers = new HashMap<>();

    while (tok.hasMoreTokens()) {
        final String tpl = tok.nextToken();
        final String[] fields = tpl.split("=", 2);
        if (fields.length > 1) {
            offers.put(fields[0], fields[1]);
        } else {//from w  ww.  j av a  2  s. co  m
            offers.put(fields[0], fields[0]);
        }
    }

    ctx.fireChannelRead(new OpenRequest(frame.getTransactionId(), offers));
}

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From source file:org.eclipse.scada.protocol.relp.RelpHandler.java

License:Open Source License

protected void handleSyslog(final ChannelHandlerContext ctx, final SyslogRequest msg) {
    logger.debug("Process syslog command: {}", msg);
    ctx.fireChannelRead(msg.getData());
    ctx.writeAndFlush(msg.replyOk());/*from w  w  w. j  ava 2  s. c om*/
}

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From source file:org.eclipse.scada.protocol.syslog.SyslogCodec.java

License:Open Source License

protected void processMessage(final ChannelHandlerContext ctx, final ByteBuf msg) {
    if (msg.readByte() != PRI_START) {
        throw new CodecException("PRI start not found");
    }//from w ww . j  a v  a 2  s .  c om

    final int prival = decodePrival(msg);

    final Severity severity = Severity.values()[prival % 8];
    final Facility facility = Facility.values()[prival / 8];

    final Calendar timestamp = this.timestampParser.parseTimestamp(msg);
    final String hostname = decodeHostname(msg);
    final String[] process = decodeProcess(msg);
    final String processName = process[0];
    final Long processId = process.length > 1 ? Long.parseLong(process[1]) : null;
    final String message = decodeMessage(msg);

    ctx.fireChannelRead(
            new SyslogMessage(facility, severity, timestamp, hostname, processName, processId, message));
}

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