Examples of com.cloud.exception.ResourceUnavailableException

com.cloud.exception.ResourceUnavailableException

    @Override
    public boolean deleteRemoteAccessVpn(Network network, RemoteAccessVpn vpn, List<? extends VirtualRouter> routers)
            throws ResourceUnavailableException {
        if (routers == null || routers.isEmpty()) {
            s_logger.warn("Failed to delete remote access VPN: no router found for account and zone");
            throw new ResourceUnavailableException("Failed to delete remote access VPN", DataCenter.class, network.getDataCenterId());
        }


        boolean result = true;
        for (VirtualRouter router : routers) {
            if (router.getState() == State.Running) {
                Commands cmds = new Commands(Command.OnError.Continue);
                createApplyVpnCommands(false, vpn, router, cmds);
                result = result && sendCommandsToRouter(router, cmds);
            } else if (router.getState() == State.Stopped) {
                s_logger.debug("Router " + router + " is in Stopped state, not sending deleteRemoteAccessVpn command to it");
                continue;
            } else {
                s_logger.warn("Failed to delete remote access VPN: domR " + router + " is not in right state " + router.getState());
                throw new ResourceUnavailableException("Failed to delete remote access VPN: domR is not in right state " +
                        router.getState(), DataCenter.class, network.getDataCenterId());
            }
        }


        return result;

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    ConcurrentOperationException, ResourceUnavailableException {
        s_logger.debug("Starting router " + router);
        try {
            _itMgr.advanceStart(router.getUuid(), params, planToDeploy, null);
        } catch (OperationTimedoutException e) {
            throw new ResourceUnavailableException("Starting router " + router + " failed! " + e.toString(), DataCenter.class, router.getDataCenterId());
        }
        if (router.isStopPending()) {
            s_logger.info("Clear the stop pending flag of router " + router.getHostName() + " after start router successfully!");
            router.setStopPending(false);
            router = _routerDao.persist(router);

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        //Asuming we have only one router per network For Now.
        DomainRouterVO router = routers.get(0);
        if (router.getState() != State.Running) {
            s_logger.warn("Failed to configure dhcp: router not in running state");
            throw new ResourceUnavailableException("Unable to assign ip addresses, domR is not in right state " +
                    router.getState(), DataCenter.class, network.getDataCenterId());
        }
        //check if this is not the primary subnet.
        NicVO domr_guest_nic = _nicDao.findByInstanceIdAndIpAddressAndVmtype(router.getId(), _nicDao.getIpAddress(nic.getNetworkId(), router.getId()), VirtualMachine.Type.DomainRouter);
        //check if the router ip address and the vm ip address belong to same subnet.

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    @Override
    public boolean removeDhcpSupportForSubnet(Network network,  List<DomainRouterVO> routers) throws ResourceUnavailableException {
        if (routers == null || routers.isEmpty()) {
            s_logger.warn("Failed to add/remove VPN users: no router found for account and zone");
            throw new ResourceUnavailableException("Unable to assign ip addresses, domR doesn't exist for network " +
                    network.getId(), DataCenter.class, network.getDataCenterId());
        }


        for (DomainRouterVO router : routers) {
            if (router.getState() != State.Running) {
                s_logger.warn("Failed to add/remove VPN users: router not in running state");
                throw new ResourceUnavailableException("Unable to assign ip addresses, domR is not in right state " +
                        router.getState(), DataCenter.class, network.getDataCenterId());
            }


            Commands cmds = new Commands(Command.OnError.Continue);
            final List<NicIpAliasVO> revokedIpAliasVOs = _nicIpAliasDao.listByNetworkIdAndState(network.getId(), NicIpAlias.state.revoked);

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    @Override
    //FIXME add partial success and STOP state support
    public String[] applyVpnUsers(Network network, List<? extends VpnUser> users, List<DomainRouterVO> routers) throws ResourceUnavailableException {
        if (routers == null || routers.isEmpty()) {
            s_logger.warn("Failed to add/remove VPN users: no router found for account and zone");
            throw new ResourceUnavailableException("Unable to assign ip addresses, domR doesn't exist for network " +
            network.getId(), DataCenter.class, network.getDataCenterId());
        }


        boolean agentResults = true;


        for (DomainRouterVO router : routers) {
            if (router.getState() != State.Running) {
                s_logger.warn("Failed to add/remove VPN users: router not in running state");
                throw new ResourceUnavailableException("Unable to assign ip addresses, domR is not in right state " +
                        router.getState(), DataCenter.class, network.getDataCenterId());
            }


            Commands cmds = new Commands(Command.OnError.Continue);
            createApplyVpnUsersCommand(users, router, cmds);

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        if (connectedRouters.size() != 1 || disconnectedRouters.size() != 1) {
            s_logger.warn("How many redundant routers do we have?? ");
            return;
        }
        if (!connectedRouters.get(0).getIsRedundantRouter()) {
            throw new ResourceUnavailableException("Who is calling this with non-redundant router or non-domain router?",
                    DataCenter.class, connectedRouters.get(0).getDataCenterId());
        }
        if (!disconnectedRouters.get(0).getIsRedundantRouter()) {
            throw new ResourceUnavailableException("Who is calling this with non-redundant router or non-domain router?",
                    DataCenter.class, disconnectedRouters.get(0).getDataCenterId());
        }


        DomainRouterVO connectedRouter = (DomainRouterVO)connectedRouters.get(0);
        DomainRouterVO disconnectedRouter = (DomainRouterVO)disconnectedRouters.get(0);

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    protected boolean applyRules(Network network, List<? extends VirtualRouter> routers, String typeString,
            boolean isPodLevelException, Long podId, boolean failWhenDisconnect, RuleApplier applier) throws ResourceUnavailableException {
        if (routers == null || routers.isEmpty()) {
            s_logger.warn("Unable to apply " + typeString + ", virtual router doesn't exist in the network " + network.getId());
            throw new ResourceUnavailableException("Unable to apply " + typeString , DataCenter.class, network.getDataCenterId());
        }


        DataCenter dc = _dcDao.findById(network.getDataCenterId());
        boolean isZoneBasic = (dc.getNetworkType() == NetworkType.Basic);
        
        // isPodLevelException and podId is only used for basic zone
        assert !((!isZoneBasic && isPodLevelException) || (isZoneBasic && isPodLevelException && podId == null));
        
        List<VirtualRouter> connectedRouters = new ArrayList<VirtualRouter>();
        List<VirtualRouter> disconnectedRouters = new ArrayList<VirtualRouter>();
        boolean result = true;
        String msg = "Unable to apply " + typeString + " on disconnected router ";
        for (VirtualRouter router : routers) {
            if (router.getState() == State.Running) {
                s_logger.debug("Applying " + typeString + " in network " + network);


                if (router.isStopPending()) {
                    if (_hostDao.findById(router.getHostId()).getState() == Status.Up) {
                        throw new ResourceUnavailableException("Unable to process due to the stop pending router " +
                    router.getInstanceName() + " haven't been stopped after it's host coming back!",
                                DataCenter.class, router.getDataCenterId());
                    }
                    s_logger.debug("Router " + router.getInstanceName() + " is stop pending, so not sending apply " +
                    typeString + " commands to the backend");
                    continue;
                }


                try {
                    result = applier.execute(network, router);
                    connectedRouters.add(router);
                } catch (AgentUnavailableException e) {
                    s_logger.warn(msg + router.getInstanceName(), e);
                    disconnectedRouters.add(router);
                }


                //If rules fail to apply on one domR and not due to disconnection, no need to proceed with the rest
                if (!result) {
                    if (isZoneBasic && isPodLevelException) {
                        throw new ResourceUnavailableException("Unable to apply " + typeString + " on router ", Pod.class, podId);
                    }
                    throw new ResourceUnavailableException("Unable to apply " + typeString + " on router ", DataCenter.class,
                            router.getDataCenterId());
                }


            } else if (router.getState() == State.Stopped || router.getState() == State.Stopping) {
                s_logger.debug("Router " + router.getInstanceName() + " is in " + router.getState() +
                        ", so not sending apply " + typeString + " commands to the backend");
            } else {
                s_logger.warn("Unable to apply " + typeString + ", virtual router is not in the right state " + router.getState());
                if (isZoneBasic && isPodLevelException) {
                    throw new ResourceUnavailableException("Unable to apply " + typeString +
                            ", virtual router is not in the right state", Pod.class, podId);
                }
                throw new ResourceUnavailableException("Unable to apply " + typeString +
                        ", virtual router is not in the right state", DataCenter.class, router.getDataCenterId());
            }
        }


        if (!connectedRouters.isEmpty()) {
            if (!isZoneBasic && !disconnectedRouters.isEmpty() && disconnectedRouters.get(0).getIsRedundantRouter()) {
                // These disconnected redundant virtual routers are out of sync now, stop them for synchronization
                handleSingleWorkingRedundantRouter(connectedRouters, disconnectedRouters, msg);
            }
        } else if (!disconnectedRouters.isEmpty()) {
            for (VirtualRouter router : disconnectedRouters) {
                if (s_logger.isDebugEnabled()) {
                    s_logger.debug(msg + router.getInstanceName() + "(" + router.getId() + ")");
                }
            }
            if (isZoneBasic && isPodLevelException) {
                throw new ResourceUnavailableException(msg, Pod.class, podId);
            }
            throw new ResourceUnavailableException(msg, DataCenter.class, disconnectedRouters.get(0).getDataCenterId());
        }


        result = true;
        if (failWhenDisconnect) {
            result = !connectedRouters.isEmpty();

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        int routerCounts = 1;
        if (offering.getRedundantRouter()) {
            routerCounts = 2;
        }
        if ((routers == null) || (routers.size() < routerCounts)) {
            throw new ResourceUnavailableException("Can't find all necessary running routers!",
                    DataCenter.class, network.getDataCenterId());
        }
        
        return true;
    }

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        VirtualMachineProfile uservm = vm;
        List<DomainRouterVO> routers = _routerMgr.deployVirtualRouterInGuestNetwork(network, dest,
                _accountMgr.getAccount(network.getAccountId()),
                uservm.getParameters(), offering.getRedundantRouter());
        if ((routers == null) || (routers.size() == 0)) {
            throw new ResourceUnavailableException("Can't find at least one running router!",
                    DataCenter.class, network.getDataCenterId());
        }
        return true;
    }

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            VirtualMachineProfile uservm = vm;


            List<DomainRouterVO> routers = getRouters(network, dest);


            if ((routers == null) || (routers.size() == 0)) {
                throw new ResourceUnavailableException("Can't find at least one router!", DataCenter.class, network.getDataCenterId());
            }


            return _routerMgr.configDhcpForSubnet(network, nic, uservm, dest, routers);
        }
        return false;

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