Examples with PingMessage dmg.cells.network.PingMessage used on opensource projects

Example 1 with PingMessage

use of dmg.cells.network.PingMessage in project dcache by dCache.

the class WebCollectorV3 method sendPing.

private void sendPing(CellAddressCore address) {
    LOGGER.debug("Sending ping to : {}", address);
    sendMessage(new CellMessage(address, new PingMessage()));
}

Example 2 with PingMessage

use of dmg.cells.network.PingMessage in project dcache by dCache.

the class WebCollectorV3 method messageArrived.

@Override
public void messageArrived(CellMessage message) {
    Object reply = message.getMessageObject();
    int modified = 0;
    if (reply instanceof LoginBrokerInfo) {
        LoginBrokerInfo brokerInfo = (LoginBrokerInfo) reply;
        synchronized (_infoLock) {
            LOGGER.debug("Login broker reports: {}@{}", brokerInfo.getCellName(), brokerInfo.getDomainName());
            if (addQuery(new CellAddressCore(brokerInfo.getCellName(), brokerInfo.getDomainName()))) {
                modified++;
            }
        }
    } else if (reply instanceof PingMessage) {
        synchronized (_infoLock) {
            addQuery(message.getSourceAddress());
        }
    } else {
        CellPath path = message.getSourcePath();
        CellAddressCore address = path.getSourceAddress();
        CellQueryInfo info;
        synchronized (_infoLock) {
            info = _infoMap.get(address);
            if (info == null) {
                // We may have registered the cell as a well known cell
                info = _infoMap.get(new CellAddressCore(address.getCellName()));
                if (info == null) {
                    LOGGER.info("Unexpected reply arrived from: {}", path);
                    return;
                }
            }
        }
        if (reply instanceof CellInfo) {
            LOGGER.debug("CellInfo: {}", ((CellInfo) reply).getCellName());
            info.infoArrived((CellInfo) reply);
        }
        if (reply instanceof PoolManagerCellInfo) {
            Set<CellAddressCore> pools = ((PoolManagerCellInfo) reply).getPoolCells();
            synchronized (_infoLock) {
                for (CellAddressCore pool : pools) {
                    if (addQuery(pool)) {
                        modified++;
                    }
                }
            }
        }
    }
    _sleepHandler.topologyChanged(modified > 0);
}

Example 3 with PingMessage

use of dmg.cells.network.PingMessage in project dcache by dCache.

the class CellShell method _waitForCell.

private String _waitForCell(String cellName, int waitTime, int check, String command) throws CommandException {
    if (check <= 4) {
        check = 5;
    }
    CellPath destination = new CellPath(cellName);
    long finish = System.currentTimeMillis() + (waitTime * 1000);
    CellMessage answer;
    Serializable message = (command == null) ? new PingMessage() : command;
    Object o;
    boolean noRoute;
    while (true) {
        noRoute = false;
        answer = null;
        try {
            _log.warn("waitForCell : Sending request");
            answer = _nucleus.sendAndWait(new CellMessage(destination, message), ((long) check) * 1000);
            _log.warn("waitForCell : got {}", answer);
        } catch (NoRouteToCellException e) {
            noRoute = true;
        } catch (ExecutionException ignored) {
        } catch (InterruptedException e) {
            throw new CommandException(66, "sendAndWait problem : " + e, e);
        }
        if ((answer != null) && ((o = answer.getMessageObject()) != null) && ((o instanceof PingMessage) || (o instanceof String))) {
            break;
        }
        if ((waitTime == 0) || (finish > System.currentTimeMillis())) {
            // 
            if ((!noRoute) && (answer == null)) {
                continue;
            }
            // 
            try {
                Thread.sleep(((long) check) * 1000);
            } catch (InterruptedException ie) {
                throw new CommandException(2, "Command Was interrupted");
            }
            continue;
        }
        throw new CommandException(1, "Command Timed Out");
    }
    return "";
}

Example 4 with PingMessage

use of dmg.cells.network.PingMessage in project dcache by dCache.

the class CellAdapter method messageArrived.

/**
 * belongs to the Cell Interface. If this method is overwritten, the messageArrived(CellMessage
 * cm) and the messageToForward(CellMessage) methods are never called.
 */
@Override
public void messageArrived(MessageEvent me) {
    CellMessage msg = me.getMessage();
    Serializable obj = msg.getMessageObject();
    if (msg.isFinalDestination()) {
        if (!msg.isReply() && msg.getLocalAge() > msg.getAdjustedTtl()) {
            _log.warn("Discarding {} because its age of {} ms exceeds its time to live of {} ms.", (obj instanceof CharSequence) ? '\'' + Ascii.truncate((CharSequence) obj, 50, "...") + '\'' : obj.getClass().getSimpleName(), msg.getLocalAge(), msg.getAdjustedTtl());
            return;
        }
        if (_useInterpreter && (!msg.isReply()) && ((obj instanceof String) || (obj instanceof AuthorizedString))) {
            Serializable o;
            UOID uoid = msg.getUOID();
            EventLogger.deliverBegin(msg);
            try {
                o = executeLocalCommand(obj);
                if (o == null) {
                    return;
                }
            } catch (CommandPanicException e) {
                o = e;
                _log.error("Command failed due to a bug, please contact support@dcache.org.", e);
            } catch (CommandException ce) {
                o = ce;
            } finally {
                EventLogger.deliverEnd(msg.getSession(), uoid);
            }
            if (o instanceof Reply) {
                Reply reply = (Reply) o;
                reply.deliver(this, msg);
            } else {
                msg.revertDirection();
                msg.setMessageObject(o);
                _nucleus.sendMessage(msg, true, true, true);
            }
        } else if ((obj instanceof PingMessage) && _answerPing) {
            PingMessage ping = (PingMessage) obj;
            if (ping.isWayBack()) {
                messageArrived(msg);
                return;
            }
            ping.setWayBack();
            ping.setOutboundPath(msg.getSourcePath());
            msg.revertDirection();
            _nucleus.sendMessage(msg, true, true, true);
        } else {
            UOID uoid = msg.getUOID();
            EventLogger.deliverBegin(msg);
            try {
                messageArrived(msg);
            } finally {
                EventLogger.deliverEnd(msg.getSession(), uoid);
            }
        }
    } else if (obj instanceof PingMessage) {
        _nucleus.sendMessage(msg, true, true, true);
    } else {
        UOID uoid = msg.getUOID();
        EventLogger.deliverBegin(msg);
        try {
            messageToForward(msg);
        } finally {
            EventLogger.deliverEnd(msg.getSession(), uoid);
        }
    }
}