Example usage for io.netty.channel Channel isOpen

List of usage examples for io.netty.channel Channel isOpen

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Introduction

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

Prototype

boolean isOpen();

Source Link

Document

Returns true if the Channel is open and may get active later

Usage

From source file:dorkbox.network.connection.registration.remote.RegistrationRemoteHandler.java

License:Apache License

@Override
public void exceptionCaught(ChannelHandlerContext context, Throwable cause) throws Exception {
    Channel channel = context.channel();

    this.logger.error("Unexpected exception while trying to send/receive data on remote network channel.  ({})"
            + System.getProperty("line.separator"), channel.remoteAddress(), cause);

    if (channel.isOpen()) {
        channel.close();// w  ww  . j  ava  2 s.  c o m
    }
}

From source file:dorkbox.network.connection.Shutdownable.java

License:Apache License

void shutdownAllChannels() {
    synchronized (shutdownChannelList) {
        // now we stop all of our channels. For the server, this will close the server manager for UDP sessions
        for (ChannelFuture f : shutdownChannelList) {
            Channel channel = f.channel();
            if (channel.isOpen()) {
                // from the git example on how to shutdown a channel
                channel.close().syncUninterruptibly();
                Thread.yield();//from  www  .j a  v  a 2 s.  c  o m
            }
        }

        // we have to clear the shutdown list. (
        shutdownChannelList.clear();
    }
}

From source file:gash.impl.raft.manager.HeartbeatData.java

License:Apache License

/**
 * verify the connection is good and if not determine if it should be
 * disabled.//from   w  w  w  . j  a  va2s. c  o m
 * 
 * @return
 */
public boolean isGood() {
    if (status == BeatStatus.Active || status == BeatStatus.Weak) {
        Channel ch = ServerOpUtil.GetConnectionChannel(nodeId);
        boolean rtn = ch.isOpen() && ch.isWritable();
        if (!rtn) {
            // TODO how to use the weakThreshold and status

            lastFailed = System.currentTimeMillis();
            failures++;
            if (failures >= failureThreshold)
                status = BeatStatus.Failed;
            else if (failures >= weakTheshold)
                status = BeatStatus.Weak;
        } else {
            failures = 0;
            lastFailed = 0;
        }

        return rtn;
    } else
        return false;
}

From source file:gash.router.server.queue.CommandInboundAppWorker.java

License:Apache License

@Override
public void run() {
    Channel conn = sq.getChannel();
    if (conn == null || !conn.isOpen()) {
        logger.error("connection missing, no inboundWork communication");
        return;/*from  www.j  a  v  a 2s  .c  om*/
    }

    while (true) {
        if (!forever && sq.inboundWork.size() == 0)
            break;

        try {
            // block until a message is enqueued
            GeneratedMessage msg = sq.inboundWork.take();

            // process request and enqueue response
            if (msg instanceof Pipe.CommandRequest) {

                //PrintUtil.printCommand((Pipe.CommandRequest) msg);
                boolean msgDropFlag;

                Pipe.CommandRequest req = ((Pipe.CommandRequest) msg);
                Pipe.Payload payload = req.getPayload();
                if (payload.hasPing()) {
                    logger.info("ping from " + req.getHeader().getNodeId());
                    if (req.getHeader().getDestination() == sq.getRoutingConf().getNodeId()) {
                        //handle message by self
                        logger.info("Message for me: " + payload.getMessage() + " from "
                                + req.getHeader().getSourceHost());
                    } else { //message doesn't belong to current node. Forward on other edges
                        msgDropFlag = true;
                        PrintUtil.printCommand((Pipe.CommandRequest) msg);
                        if (MessageServer.getEmon() != null) {// forward if Comm-worker port is active
                            for (EdgeInfo ei : MessageServer.getEmon().getOutboundEdgeInfoList()) {
                                if (ei.isActive() && ei.getChannel() != null) {// check if channel of outboundWork edge is active
                                    Work.WorkRequest.Builder wb = Work.WorkRequest.newBuilder();

                                    Common.Header.Builder hb = Common.Header.newBuilder();
                                    hb.setNodeId(sq.getRoutingConf().getNodeId());
                                    hb.setTime(req.getHeader().getTime());
                                    hb.setDestination(req.getHeader().getDestination());
                                    hb.setSourceHost(sq.getRoutingConf().getNodeId() + "_"
                                            + req.getHeader().getSourceHost());
                                    hb.setDestinationHost(req.getHeader().getDestinationHost());
                                    hb.setMaxHops(5);

                                    wb.setHeader(hb);
                                    wb.setSecret(1234567809);
                                    wb.setPayload(Work.Payload.newBuilder().setPing(true));

                                    Work.WorkRequest work = wb.build();

                                    PerChannelWorkQueue edgeQueue = (PerChannelWorkQueue) ei.getQueue();
                                    edgeQueue.enqueueResponse(work, ei.getChannel());
                                    msgDropFlag = false;
                                    logger.info("Workmessage queued");
                                }
                            }
                            if (msgDropFlag)
                                logger.info("Message dropped <node,ping,destination>: <"
                                        + req.getHeader().getNodeId() + "," + payload.getPing() + ","
                                        + req.getHeader().getDestination() + ">");
                        } else {// drop the message or queue it for limited time to send to connected node
                                //todo
                            logger.info("No outbound edges to forward. To be handled");
                        }

                    }
                } else if (payload.hasMessage()) {
                    logger.info(payload.getMessage());
                } else {
                    //todo
                }

            }
        } catch (InterruptedException ie) {
            break;
        } catch (Exception e) {
            logger.error("Unexpected processing failure", e);
            break;
        }
    }

    if (!forever) {
        logger.debug("connection queue closing");
    }
}

From source file:gash.router.server.queue.CommandOutboundAppWorker.java

License:Apache License

@Override
public void run() {
    Channel conn = sq.channel;
    if (conn == null || !conn.isOpen()) {
        PerChannelCommandQueue.logger.error("connection missing, no outboundWork communication");
        return;//from  www  . j a va2s .co  m
    }

    while (true) {
        if (!forever && sq.outboundWork.size() == 0)
            break;

        try {
            // block until a message is enqueued
            GeneratedMessage msg = sq.outboundWork.take();
            if (conn.isWritable()) {
                boolean rtn = false;
                if (sq.channel != null && sq.channel.isOpen() && sq.channel.isWritable()) {

                    ChannelFuture cf = sq.channel.writeAndFlush(msg);

                    logger.info("Server--sending -- command -- response");
                    // blocks on write - use listener to be async
                    cf.awaitUninterruptibly();
                    logger.debug("Written to channel");
                    rtn = cf.isSuccess();
                    if (!rtn) {
                        System.out.println("Sending failed " + rtn + "{Reason:" + cf.cause() + "}");
                        sq.outboundWork.putFirst(msg);
                    } else
                        logger.info("Message Sent");
                }

            } else
                sq.outboundWork.putFirst(msg);
        } catch (InterruptedException ie) {
            break;
        } catch (Exception e) {
            logger.error("Unexpected communcation failure", e);
            break;
        }
    }

    if (!forever) {
        logger.debug("connection queue closing");
    }
}

From source file:gash.router.server.queue.GlobalCommandInboundAppWorker.java

License:Apache License

@Override
public void run() {
    Channel conn = sq.getChannel();
    if (conn == null || !conn.isOpen()) {
        logger.error("connection missing, no inboundWork communication");
        return;//  ww w. j a v  a  2  s.co m
    }

    while (true) {
        if (!forever && sq.inboundWork.size() == 0)
            break;

        try {
            // block until a message is enqueued
            GeneratedMessage msg = sq.inboundWork.take();
            boolean msgDropFlag;

            // process request and enqueue response
            if (msg instanceof Global.GlobalCommandMessage) {

                //PrintUtil.printCommand((Pipe.CommandRequest) msg);
                Global.GlobalCommandMessage req = ((Global.GlobalCommandMessage) msg);

                if (req.hasPing()) {
                    /*logger.info("ping from " + req.getHeader().getNodeId());
                    if (req.getHeader().getDestination() == sq.getRoutingConf().getNodeId()) {
                       //handle message by self
                       logger.info("Message for me: " + req.getMessage() + " from " + req.getHeader().getSourceHost());
                    } else { //message doesn't belong to current node. Forward on other edges
                       msgDropFlag = true;
                       PrintUtil.printGlobalCommand((Global.GlobalCommandMessage) msg);
                       if (MessageServer.getEmon() != null) {// forward if Comm-worker port is active
                          for (EdgeInfo ei : MessageServer.getEmon().getOutboundEdgeInfoList()) {
                             if (ei.isActive() && ei.getChannel() != null) {// check if channel of outboundWork edge is active
                      Work.WorkRequest.Builder wb = Work.WorkRequest.newBuilder();
                            
                      Common.Header.Builder hb = Common.Header.newBuilder();
                      hb.setNodeId(sq.getRoutingConf().getNodeId());
                      hb.setTime(req.getHeader().getTime());
                      hb.setDestination(req.getHeader().getDestination());
                      hb.setSourceHost(sq.getRoutingConf().getNodeId() + "_" + req.getHeader().getSourceHost());
                      hb.setDestinationHost(req.getHeader().getDestinationHost());
                      hb.setMaxHops(5);
                            
                      wb.setHeader(hb);
                      wb.setSecret(1234567809);
                      wb.setPayload(Work.Payload.newBuilder().setPing(true));
                            
                      Work.WorkRequest work = wb.build();
                            
                      PerChannelWorkQueue edgeQueue = (PerChannelWorkQueue) ei.getQueue();
                      edgeQueue.enqueueResponse(work, ei.getChannel());
                      msgDropFlag = false;
                      logger.info("Workmessage queued");
                             }
                          }
                          if (msgDropFlag)
                             logger.info("Message dropped <node,ping,destination>: <" + req.getHeader().getNodeId() + "," + req.getPing() + "," + req.getHeader().getDestination() + ">");
                       } else {// drop the message or queue it for limited time to send to connected node
                          //todo
                          logger.info("No outbound edges to forward. To be handled");
                       }
                            
                    }*/
                    new Ping(sq).handle(req);
                } else if (req.hasQuery()) {
                    new Query(sq).handle(req);
                } else {
                    logger.error("Unexpected message type. Yet to handle.");
                }

            }
        } catch (InterruptedException ie) {
            break;
        } catch (Exception e) {
            logger.error("Unexpected processing failure", e);
            break;
        }
    }

    if (!forever) {
        logger.info("Command incoming connection queue closing");
    }
}

From source file:gash.router.server.queue.GlobalCommandOutboundAppWorker.java

License:Apache License

@Override
public void run() {
    Channel conn = sq.channel;
    if (conn == null || !conn.isOpen()) {
        PerChannelGlobalCommandQueue.logger.error("connection missing, no outboundWork communication");
        return;/*from  ww  w  .  j  ava  2 s .  c  o m*/
    }

    while (true) {
        if (!forever && sq.outboundWork.size() == 0)
            break;

        try {
            // block until a message is enqueued
            GeneratedMessage msg = sq.outboundWork.take();
            if (conn.isWritable()) {
                boolean rtn = false;
                if (sq.channel != null && sq.channel.isOpen() && sq.channel.isWritable()) {

                    ChannelFuture cf = sq.channel.writeAndFlush(msg);

                    logger.info("Server--sending -- command -- response");
                    // blocks on write - use listener to be async
                    cf.awaitUninterruptibly();
                    logger.debug("Written to channel");
                    rtn = cf.isSuccess();
                    if (!rtn) {
                        System.out.println("Sending failed " + rtn + "{Reason:" + cf.cause() + "}");
                        sq.outboundWork.putFirst(msg);
                    } else
                        logger.info("Message Sent");
                }

            } else
                sq.outboundWork.putFirst(msg);
        } catch (InterruptedException ie) {
            break;
        } catch (Exception e) {
            logger.error("Unexpected communcation failure", e);
            break;
        }
    }

    if (!forever) {
        logger.info("connection queue closing");
    }
}

From source file:gash.router.server.queue.WorkInboundAppWorker.java

License:Apache License

@Override
public void run() {
    Channel conn = sq.getChannel();
    if (conn == null || !conn.isOpen()) {
        logger.error("connection missing, no inboundWork communication");
        return;/*from ww w .j av  a 2  s  .co  m*/
    }

    while (true) {
        if (!forever && sq.inbound.size() == 0)
            break;

        try {
            // block until a message is enqueued
            GeneratedMessage msg = sq.inbound.take();

            // process request and enqueue response

            if (msg instanceof Work.WorkRequest) {
                Work.WorkRequest req = ((Work.WorkRequest) msg);
                Work.Payload payload = req.getPayload();
                boolean msgDropFlag;

                //PrintUtil.printWork(req);
                if (payload.hasBeat()) {
                    //Work.Heartbeat hb = payload.getBeat();
                    logger.info("heartbeat from " + req.getHeader().getNodeId());
                    EdgeMonitor emon = MessageServer.getEmon();
                    EdgeInfo ei = new EdgeInfo(req.getHeader().getNodeId(), "", req.getHeader().getSource());
                    ei.setChannel(sq.getChannel());
                    emon.addToInbound(ei);
                    RaftManager.getInstance().assessCurrentState();
                } else if (payload.hasPing()) {
                    /*logger.info("ping from <node,host> : <" + req.getHeader().getNodeId() + ", " + req.getHeader().getSourceHost()+">");
                    PrintUtil.printWork(req);
                    if(req.getHeader().getDestination() == sq.state.getConf().getNodeId()){
                       //handle message by self
                       logger.info("Ping for me: " + " from "+ req.getHeader().getSourceHost());
                            
                       Work.WorkRequest.Builder rb = Work.WorkRequest.newBuilder();
                            
                       Common.Header.Builder hb = Common.Header.newBuilder();
                       hb.setNodeId(sq.state.getConf().getNodeId());
                       hb.setTime(System.currentTimeMillis());
                       hb.setDestination(Integer.parseInt(req.getHeader().getSourceHost().substring(req.getHeader().getSourceHost().lastIndexOf('_')+1)));
                       hb.setSourceHost(req.getHeader().getSourceHost().substring(req.getHeader().getSourceHost().indexOf('_')+1));
                       hb.setDestinationHost(req.getHeader().getSourceHost());
                       hb.setMaxHops(5);
                            
                       rb.setHeader(hb);
                       rb.setSecret(1234567809);
                       rb.setPayload(Work.Payload.newBuilder().setPing(true));
                       //channel.writeAndFlush(rb.build());
                       sq.enqueueResponse(rb.build(),sq.getChannel());
                    }
                    else { //message doesn't belong to current node. Forward on other edges
                       msgDropFlag = true;
                       PrintUtil.printWork(req);
                       if (req.getHeader().getMaxHops() > 0 && MessageServer.getEmon() != null) {// forward if Comm-worker port is active
                          for (EdgeInfo ei : MessageServer.getEmon().getOutboundEdgeInfoList()) {
                             if (ei.isActive() && ei.getChannel() != null) {// check if channel of outbound edge is active
                      logger.debug("Workmessage being queued");
                      Work.WorkRequest.Builder wb = Work.WorkRequest.newBuilder();
                            
                      Common.Header.Builder hb = Common.Header.newBuilder();
                      hb.setNodeId(sq.state.getConf().getNodeId());
                      hb.setTime(req.getHeader().getTime());
                      hb.setDestination(req.getHeader().getDestination());
                      hb.setSourceHost(sq.state.getConf().getNodeId()+"_"+req.getHeader().getSourceHost());
                      hb.setDestinationHost(req.getHeader().getDestinationHost());
                      hb.setMaxHops(req.getHeader().getMaxHops() -1);
                            
                      wb.setHeader(hb);
                      wb.setSecret(1234567809);
                      wb.setPayload(Work.Payload.newBuilder().setPing(true));
                      //ei.getChannel().writeAndFlush(wb.build());
                      PerChannelWorkQueue edgeQueue = (PerChannelWorkQueue) ei.getQueue();
                      edgeQueue.enqueueResponse(wb.build(),ei.getChannel());
                      msgDropFlag = false;
                      logger.debug("Workmessage queued");
                             }
                          }
                          if (msgDropFlag)
                             logger.info("Message dropped <node,ping,destination>: <" + req.getHeader().getNodeId() + "," + payload.getPing() + "," + req.getHeader().getDestination() + ">");
                       } else {// drop the message or queue it for limited time to send to connected node
                          //todo
                          logger.info("No outbound edges to forward. To be handled");
                       }
                    }*/
                    new Ping(sq).handle(req);

                } else if (payload.hasQuery()) {
                    logger.debug("Query message on work channel from " + req.getHeader().getNodeId());
                    new Query(sq).handle(req);
                } else if (payload.hasResponse()) {
                    logger.debug("Response message on work channel from " + req.getHeader().getNodeId());
                    new Response(sq).handle(req);
                } else if (payload.hasErr()) {
                    Common.Failure err = payload.getErr();
                    logger.error("failure from " + req.getHeader().getNodeId());
                    // PrintUtil.printFailure(err);
                } else if (payload.hasTask()) {
                    Work.Task t = payload.getTask();
                    sq.gerServerState().getTasks().addTask(t);
                } else if (payload.hasState()) {
                    Work.WorkState s = payload.getState();
                } else if (payload.hasRaftmsg()) {
                    RaftManager.getInstance().processRequest((Work.WorkRequest) msg);
                    //ElectionManager.getInstance().assessCurrentState();
                }
            }
        } catch (InterruptedException ie) {
            break;
        } catch (Exception e) {
            logger.error("Unexpected processing failure", e);
            break;
        }
    }

    if (!forever) {
        logger.debug("connection queue closing");
    }
}

From source file:gash.router.server.queue.WorkOutboundAppWorker.java

License:Apache License

@Override
public void run() {
    Channel conn = sq.channel;
    if (conn == null || !conn.isOpen()) {
        PerChannelWorkQueue.logger.error("connection missing, no outboundWork communication");
        return;/* w w  w  .ja v a 2 s.  c  om*/
    }

    while (true) {
        if (!forever && sq.outbound.size() == 0)
            break;

        try {
            // block until a message is enqueued
            GeneratedMessage msg = sq.outbound.take();
            if (conn.isWritable()) {
                boolean rtn = false;
                if (sq.channel != null && sq.channel.isOpen() && sq.channel.isWritable()) {

                    ChannelFuture cf = sq.channel.writeAndFlush((Work.WorkRequest) msg);

                    logger.info("Server--sending -- work-- response");
                    // blocks on write - use listener to be async
                    cf.awaitUninterruptibly();
                    logger.debug("Written to channel");
                    rtn = cf.isSuccess();
                    if (!rtn) {
                        logger.error("Sending failed " + rtn + "{Reason:" + cf.cause() + "}");
                        sq.outbound.putFirst(msg);
                    } else
                        logger.info("Message Sent");
                }

            } else
                sq.outbound.putFirst(msg);
        } catch (InterruptedException ie) {
            break;
        } catch (Exception e) {
            logger.error("Unexpected communcation failure", e);
            break;
        }
    }

    if (!forever) {
        logger.debug("connection queue closing");
    }
}

From source file:io.advantageous.conekt.net.impl.ConektHandler.java

License:Open Source License

@Override
public void exceptionCaught(ChannelHandlerContext chctx, final Throwable t) throws Exception {
    Channel ch = chctx.channel();
    // Don't remove the connection at this point, or the handleClosed won't be called when channelInactive is called!
    C connection = getConnection(ch);//from w w w .jav a  2 s . co m
    if (connection != null) {
        ContextImpl context = getContext(connection);
        context.executeFromIO(() -> {
            try {
                if (ch.isOpen()) {
                    ch.close();
                }
            } catch (Throwable ignore) {
            }
            connection.handleException(t);
        });
    } else {
        ch.close();
    }
}