Examples with TypedReadTransaction org.opendaylight.mdsal.binding.util.TypedReadTransaction used on opensource projects

Example 1 with TypedReadTransaction

use of org.opendaylight.mdsal.binding.util.TypedReadTransaction in project netvirt by opendaylight.

the class VpnInterfaceOpListener method postProcessVpnInterfaceRemoval.

private void postProcessVpnInterfaceRemoval(InstanceIdentifier<VpnInterfaceOpDataEntry> identifier, VpnInterfaceOpDataEntry del, @Nullable TypedReadWriteTransaction<Operational> operTx, @Nullable TypedReadTransaction<Configuration> confTx) throws InterruptedException {
    if (confTx == null) {
        txRunner.callWithNewReadOnlyTransactionAndClose(CONFIGURATION, tx -> postProcessVpnInterfaceRemoval(identifier, del, operTx, tx));
        return;
    }
    if (operTx == null) {
        LoggingFutures.addErrorLogging(txRunner.callWithNewReadWriteTransactionAndSubmit(OPERATIONAL, tx -> postProcessVpnInterfaceRemoval(identifier, del, tx, confTx)), LOG, "Error post-processing VPN interface removal");
        return;
    }
    final VpnInterfaceOpDataEntryKey key = identifier.firstKeyOf(VpnInterfaceOpDataEntry.class);
    String interfaceName = key.getName();
    String vpnName = del.getVpnInstanceName();
    try {
        LOG.info("postProcessVpnInterfaceRemoval: interface name {} vpnName {} dpn {}", interfaceName, vpnName, del.getDpnId());
        // decrement the vpn interface count in Vpn Instance Op Data
        Optional<VpnInstance> vpnInstance = confTx.read(VpnOperDsUtils.getVpnInstanceToVpnIdIdentifier(vpnName)).get();
        if (vpnInstance.isPresent()) {
            String rd = vpnInstance.get().getVrfId();
            VpnInstanceOpDataEntry vpnInstOp = vpnUtil.getVpnInstanceOpData(rd);
            AdjacenciesOp adjs = del.augmentation(AdjacenciesOp.class);
            Map<AdjacencyKey, Adjacency> adjMap = adjs != null ? adjs.getAdjacency() : null;
            if (vpnInstOp != null && adjMap != null && adjMap.size() > 0) {
                /*
                 * When a VPN Interface is removed by FibManager (aka VrfEntryListener and its cohorts),
                 * one adjacency or two adjacency (in case of dual-stack)
                 * for that VPN Interface will be hanging around along with that
                 * VPN Interface.   That adjacency could be primary (or) non-primary.
                 * If its a primary adjacency, then a prefix-to-interface entry will be available for the
                 * same.  If its a non-primary adjacency, then a prefix-to-interface entry will not be
                 * available for the same, instead we will have vpn-to-extraroutes filled in for them.
                 *
                 * Here we try to remove prefix-to-interface entry for pending adjacency in the deleted
                 * vpnInterface.   More importantly, we also update the vpnInstanceOpData by removing this
                 * vpnInterface from it.
                 */
                List<Prefixes> prefixToInterface = new ArrayList<>();
                for (Adjacency adjacency : adjs.getAdjacency().values()) {
                    List<Prefixes> prefixToInterfaceLocal = new ArrayList<>();
                    Optional<Prefixes> prefix = operTx.read(VpnUtil.getPrefixToInterfaceIdentifier(vpnInstOp.getVpnId(), VpnUtil.getIpPrefix(adjacency.getIpAddress()))).get();
                    if (prefix.isPresent()) {
                        prefixToInterfaceLocal.add(prefix.get());
                    }
                    if (prefixToInterfaceLocal.isEmpty() && adjacency.getNextHopIpList() != null) {
                        for (String nh : adjacency.getNextHopIpList()) {
                            prefix = operTx.read(VpnUtil.getPrefixToInterfaceIdentifier(vpnInstOp.getVpnId(), VpnUtil.getIpPrefix(nh))).get();
                            if (prefix.isPresent()) {
                                prefixToInterfaceLocal.add(prefix.get());
                            }
                        }
                    }
                    if (!prefixToInterfaceLocal.isEmpty()) {
                        prefixToInterface.addAll(prefixToInterfaceLocal);
                    }
                }
                /*
                 * In VPN Migration scenarios, there is a race condition where we use the new DPNID
                 * for the migrated VM instead of old DPNID because when we read prefix-to-interface to cleanup
                 * old DPNID, we actually get the new DPNID.
                 *
                 * More dangerously, we tend to alter the new prefix-to-interface which should be retained intac
                 * for the migration to succeed in L3VPN.  As a workaround, here we are going to use the dpnId in
                 * the deleted vpnInterface itself instead of tinkering with the prefix-to-interface.  Further we
                 * will tinker prefix-to-interface only when are damn sure if its value matches our
                 * deleted vpnInterface.
                 *
                 */
                for (Prefixes pref : prefixToInterface) {
                    if (VpnUtil.isMatchedPrefixToInterface(pref, del)) {
                        operTx.delete(VpnUtil.getPrefixToInterfaceIdentifier(vpnInstOp.getVpnId(), pref.getIpAddress()));
                    }
                }
            }
            if (del.getDpnId() != null) {
                vpnFootprintService.updateVpnToDpnMapping(del.getDpnId(), del.getVpnInstanceName(), rd, interfaceName, null, /*ipAddressSourceValuePair*/
                false);
            }
            LOG.info("postProcessVpnInterfaceRemoval: Removed vpn operational data and updated vpn footprint" + " for interface {} on dpn {} vpn {}", interfaceName, del.getDpnId(), vpnName);
        } else {
            LOG.error("postProcessVpnInterfaceRemoval: rd not retrievable as vpninstancetovpnid for vpn {}" + " is absent, trying rd as {}. interface {} dpn {}", vpnName, vpnName, interfaceName, del.getDpnId());
        }
        notifyTaskIfRequired(interfaceName);
    } catch (InterruptedException | ExecutionException e) {
        LOG.error("postProcessVpnInterfaceRemoval: Failed to read data store for interface {} vpn {}", interfaceName, vpnName);
    }
}

Example 2 with TypedReadTransaction

use of org.opendaylight.mdsal.binding.util.TypedReadTransaction in project netvirt by opendaylight.

the class L2GatewayConnectionListener method loadL2GwDeviceCache.

private void loadL2GwDeviceCache(TypedReadTransaction tx) {
    allNodes = (Map<InstanceIdentifier<Node>, Node>) readAllConfigNodes(tx).stream().collect(toMap(TO_NODE_PATH, Function.identity()));
    LOG.trace("Loading all config nodes");
    Set<InstanceIdentifier<Node>> allIids = allNodes.keySet();
    Map<String, List<InstanceIdentifier<Node>>> psNodesByDeviceName = allIids.stream().filter(IS_PS_NODE).collect(groupingBy(GET_DEVICE_NAME, toList()));
    // Process HA nodes
    createHANodes(allIids);
    // Process non HA nodes there will be only one ps node iid for each device for non ha nodes
    psNodesByDeviceName.values().stream().filter(psIids -> psIids.size() == 1).map(psIids -> psIids.get(0)).forEach(psIid -> {
        Node psNode = allNodes.get(psIid);
        Node globalNode = allNodes.get(TO_GLOBAL_PATH.apply(psNode));
        if (globalNode != null) {
            addL2DeviceToCache(psIid, globalNode, psNode);
        }
    });
}