Examples with Timestamp org.onosproject.store.Timestamp used on opensource projects

Example 6 with Timestamp

use of org.onosproject.store.Timestamp in project onos by opennetworkinglab.

the class GossipDeviceStore method markOnlineInternal.

// Guarded by deviceDescs value (=Device lock)
private DeviceEvent markOnlineInternal(DeviceId deviceId, Timestamp timestamp) {
    if (devices.containsKey(deviceId)) {
        Map<?, ?> deviceLock = getOrCreateDeviceDescriptionsMap(deviceId);
        synchronized (deviceLock) {
            // accept on-line if given timestamp is newer than
            // the latest offline request Timestamp
            Timestamp offlineTimestamp = offline.get(deviceId);
            if (offlineTimestamp == null || offlineTimestamp.compareTo(timestamp) < 0) {
                offline.remove(deviceId);
                Device device = devices.get(deviceId);
                boolean add = availableDevices.add(deviceId);
                if (add) {
                    return new DeviceEvent(DEVICE_AVAILABILITY_CHANGED, device, null);
                }
            }
        }
    } else {
        log.warn("Device {} does not exist in store", deviceId);
    }
    return null;
}

Example 7 with Timestamp

use of org.onosproject.store.Timestamp in project onos by opennetworkinglab.

the class GossipDeviceStore method createOrUpdateDevice.

@Override
public synchronized DeviceEvent createOrUpdateDevice(ProviderId providerId, DeviceId deviceId, DeviceDescription deviceDescription) {
    NodeId localNode = clusterService.getLocalNode().id();
    NodeId deviceNode = mastershipService.getMasterFor(deviceId);
    boolean isMaster = localNode.equals(deviceNode);
    // Process device update only if we're the master,
    // otherwise signal the actual master.
    DeviceEvent deviceEvent = null;
    // If this node is the master for the device, acquire a new timestamp. Otherwise,
    // use a 0,0 or tombstone timestamp to create the device if it doesn't already exist.
    Timestamp newTimestamp;
    try {
        newTimestamp = isMaster ? deviceClockService.getTimestamp(deviceId) : removalRequest.getOrDefault(deviceId, DEFAULT_TIMESTAMP);
    } catch (IllegalStateException e) {
        newTimestamp = removalRequest.getOrDefault(deviceId, DEFAULT_TIMESTAMP);
        isMaster = false;
    }
    final Timestamped<DeviceDescription> deltaDesc = new Timestamped<>(deviceDescription, newTimestamp);
    final Timestamped<DeviceDescription> mergedDesc;
    final Map<ProviderId, DeviceDescriptions> device = getOrCreateDeviceDescriptionsMap(deviceId);
    synchronized (device) {
        deviceEvent = createOrUpdateDeviceInternal(providerId, deviceId, deltaDesc);
        if (deviceEvent == null) {
            return null;
        }
        mergedDesc = device.get(providerId).getDeviceDesc();
    }
    // If this node is the master for the device, update peers.
    if (isMaster) {
        log.debug("Notifying peers of a device update topology event for providerId: {} and deviceId: {}", providerId, deviceId);
        notifyPeers(new InternalDeviceEvent(providerId, deviceId, mergedDesc));
    }
    notifyDelegateIfNotNull(deviceEvent);
    return deviceEvent;
}

Example 8 with Timestamp

use of org.onosproject.store.Timestamp in project onos by opennetworkinglab.

the class GossipDeviceStore method handleAdvertisement.

/**
 * Responds to anti-entropy advertisement message.
 * <p>
 * Notify sender about out-dated information using regular replication message.
 * Send back advertisement to sender if not in sync.
 *
 * @param advertisement to respond to
 */
private void handleAdvertisement(DeviceAntiEntropyAdvertisement advertisement) {
    /*
         * NOTE that when an instance rejoins the cluster, it will generate
         * device events and send to the local apps through the delegate. This
         * approach might be not the best if the apps are not enough robust or
         * if there is no proper coordination in the cluster. Also, note that
         * any ECMap will act on the same way during the bootstrap process
         */
    final NodeId sender = advertisement.sender();
    Map<DeviceFragmentId, Timestamp> devAds = new HashMap<>(advertisement.deviceFingerPrints());
    Map<PortFragmentId, Timestamp> portAds = new HashMap<>(advertisement.ports());
    Map<DeviceId, Timestamp> offlineAds = new HashMap<>(advertisement.offline());
    // Fragments to request
    Collection<DeviceFragmentId> reqDevices = new ArrayList<>();
    Collection<PortFragmentId> reqPorts = new ArrayList<>();
    for (Entry<DeviceId, Map<ProviderId, DeviceDescriptions>> de : deviceDescs.entrySet()) {
        final DeviceId deviceId = de.getKey();
        final Map<ProviderId, DeviceDescriptions> lDevice = de.getValue();
        synchronized (lDevice) {
            // latestTimestamp across provider
            // Note: can be null initially
            Timestamp localLatest = offline.get(deviceId);
            // handle device Ads
            for (Entry<ProviderId, DeviceDescriptions> prov : lDevice.entrySet()) {
                final ProviderId provId = prov.getKey();
                final DeviceDescriptions lDeviceDescs = prov.getValue();
                final DeviceFragmentId devFragId = new DeviceFragmentId(deviceId, provId);
                Timestamped<DeviceDescription> lProvDevice = lDeviceDescs.getDeviceDesc();
                Timestamp advDevTimestamp = devAds.get(devFragId);
                if (advDevTimestamp == null || lProvDevice.isNewerThan(advDevTimestamp)) {
                    // remote does not have it or outdated, suggest
                    log.trace("send to {} device update {} for {}", sender, lProvDevice, deviceId);
                    notifyPeer(sender, new InternalDeviceEvent(provId, deviceId, lProvDevice));
                } else if (!lProvDevice.timestamp().equals(advDevTimestamp)) {
                    // local is outdated, request
                    log.trace("need update {} < {} for device {} from {}", lProvDevice.timestamp(), advDevTimestamp, deviceId, sender);
                    reqDevices.add(devFragId);
                }
                // handle port Ads
                for (Entry<PortNumber, Timestamped<PortDescription>> pe : lDeviceDescs.getPortDescs().entrySet()) {
                    final PortNumber num = pe.getKey();
                    final Timestamped<PortDescription> lPort = pe.getValue();
                    final PortFragmentId portFragId = new PortFragmentId(deviceId, provId, num);
                    Timestamp advPortTimestamp = portAds.get(portFragId);
                    if (advPortTimestamp == null || lPort.isNewerThan(advPortTimestamp)) {
                        // remote does not have it or outdated, suggest
                        log.trace("send to {} port update {} for {}/{}", sender, lPort, deviceId, num);
                        notifyPeer(sender, new InternalPortStatusEvent(provId, deviceId, lPort));
                    } else if (!lPort.timestamp().equals(advPortTimestamp)) {
                        // local is outdated, request
                        log.trace("need update {} < {} for port {} from {}", lPort.timestamp(), advPortTimestamp, num, sender);
                        reqPorts.add(portFragId);
                    }
                    // remove port Ad already processed
                    portAds.remove(portFragId);
                }
                // end local port loop
                // remove device Ad already processed
                devAds.remove(devFragId);
                // find latest and update
                final Timestamp providerLatest = lDeviceDescs.getLatestTimestamp();
                if (localLatest == null || providerLatest.compareTo(localLatest) > 0) {
                    localLatest = providerLatest;
                }
            }
            // end local provider loop
            // checking if remote timestamp is more recent.
            Timestamp rOffline = offlineAds.get(deviceId);
            if (localLatest == null || (rOffline != null && rOffline.compareTo(localLatest) > 0)) {
                // remote offline timestamp suggests that the
                // device is off-line
                log.trace("remote offline timestamp from {} suggests that the device {} is off-line", sender, deviceId);
                markOfflineInternal(deviceId, rOffline);
            }
            Timestamp lOffline = offline.get(deviceId);
            if (lOffline != null && rOffline == null) {
                // locally offline, but remote is online, suggest offline
                log.trace("suggest to {} sthat the device {} is off-line", sender, deviceId);
                notifyPeer(sender, new InternalDeviceStatusChangeEvent(deviceId, lOffline, false));
            }
            // remove device offline Ad already processed
            offlineAds.remove(deviceId);
        }
    // end local device loop
    }
    // device lock
    // If there is any Ads left, request them
    log.trace("Ads left {}, {}", devAds, portAds);
    reqDevices.addAll(devAds.keySet());
    reqPorts.addAll(portAds.keySet());
    if (reqDevices.isEmpty() && reqPorts.isEmpty()) {
        log.trace("Nothing to request to remote peer {}", sender);
        return;
    }
    log.debug("Need to sync {} {}", reqDevices, reqPorts);
    // 2-way Anti-Entropy for now
    try {
        unicastMessage(sender, DEVICE_ADVERTISE, createAdvertisement());
    } catch (IOException e) {
        log.error("Failed to send response advertisement to " + sender, e);
    }
// Sketch of 3-way Anti-Entropy
// DeviceAntiEntropyRequest request = new DeviceAntiEntropyRequest(self, reqDevices, reqPorts);
// ClusterMessage message = new ClusterMessage(
// clusterService.getLocalNode().id(),
// GossipDeviceStoreMessageSubjects.DEVICE_REQUEST,
// SERIALIZER.encode(request));
// 
// try {
// clusterCommunicator.unicast(message, advertisement.sender());
// } catch (IOException e) {
// log.error("Failed to send advertisement reply to "
// + advertisement.sender(), e);
// }
}

Example 9 with Timestamp

use of org.onosproject.store.Timestamp in project onos by opennetworkinglab.

the class GossipDeviceStore method composePort.

/**
 * Returns a Port, merging description given from multiple Providers.
 *
 * @param device   device the port is on
 * @param number   port number
 * @param descsMap Collection of Descriptions from multiple providers
 * @return Port instance
 */
private Port composePort(Device device, PortNumber number, Map<ProviderId, DeviceDescriptions> descsMap) {
    ProviderId primary = pickPrimaryPid(descsMap);
    DeviceDescriptions primDescs = descsMap.get(primary);
    // if no primary, assume not enabled
    boolean isEnabled = false;
    DefaultAnnotations.Builder annotations = DefaultAnnotations.builder();
    Timestamp newest = null;
    final Timestamped<PortDescription> portDesc = primDescs.getPortDesc(number);
    if (portDesc != null) {
        isEnabled = portDesc.value().isEnabled();
        annotations.putAll(portDesc.value().annotations());
        newest = portDesc.timestamp();
    }
    Port updated = null;
    for (Entry<ProviderId, DeviceDescriptions> e : descsMap.entrySet()) {
        if (e.getKey().equals(primary)) {
            continue;
        }
        // Note: should keep track of Description timestamp in the future
        // and only merge conflicting keys when timestamp is newer.
        // Currently assuming there will never be a key conflict between
        // providers
        // annotation merging. not so efficient, should revisit later
        final Timestamped<PortDescription> otherPortDesc = e.getValue().getPortDesc(number);
        if (otherPortDesc != null) {
            if (newest != null && newest.isNewerThan(otherPortDesc.timestamp())) {
                continue;
            }
            annotations.putAll(otherPortDesc.value().annotations());
            PortDescription other = otherPortDesc.value();
            updated = buildTypedPort(device, number, isEnabled, other, annotations.build());
            newest = otherPortDesc.timestamp();
        }
    }
    if (portDesc == null) {
        return updated == null ? new DefaultPort(device, number, false, annotations.build()) : updated;
    }
    PortDescription current = portDesc.value();
    return updated == null ? buildTypedPort(device, number, isEnabled, current, annotations.build()) : updated;
}

Example 10 with Timestamp

use of org.onosproject.store.Timestamp in project onos by opennetworkinglab.

the class GossipDeviceStore method removeDevice.

@Override
public synchronized DeviceEvent removeDevice(DeviceId deviceId) {
    final NodeId myId = clusterService.getLocalNode().id();
    NodeId master = mastershipService.getMasterFor(deviceId);
    // if there exist a master, forward
    // if there is no master, try to become one and process
    boolean relinquishAtEnd = false;
    if (master == null) {
        final MastershipRole myRole = mastershipService.getLocalRole(deviceId);
        if (myRole != MastershipRole.NONE) {
            relinquishAtEnd = true;
        }
        log.debug("Temporarily requesting role for {} to remove", deviceId);
        if (mastershipService.requestRoleFor(deviceId).join() == MastershipRole.MASTER) {
            master = myId;
        }
    }
    boolean isMaster = myId.equals(master);
    // If this node is not the master, forward the request.
    if (!isMaster) {
        log.debug("{} has control of {}, forwarding remove request", master, deviceId);
        // TODO check unicast return value
        clusterCommunicator.unicast(deviceId, DEVICE_REMOVE_REQ, SERIALIZER::encode, master);
    /* error log:
             log.error("Failed to forward {} remove request to {}", deviceId, master, e);
             */
    }
    // If this node is the master, get a timestamp. Otherwise, default to the current device timestamp.
    Timestamp timestamp = isMaster ? deviceClockService.getTimestamp(deviceId) : null;
    DeviceEvent event = removeDeviceInternal(deviceId, timestamp);
    // If this node is the master, update peers.
    if (isMaster && event != null) {
        log.debug("Notifying peers of a device removed topology event for deviceId: {}", deviceId);
        notifyPeers(new InternalDeviceRemovedEvent(deviceId, timestamp));
    }
    notifyDelegateIfNotNull(event);
    // Relinquish mastership if acquired to remove the device.
    if (relinquishAtEnd) {
        log.debug("Relinquishing temporary role acquired for {}", deviceId);
        mastershipService.relinquishMastership(deviceId);
    }
    return event;
}