Examples with DeviceHandshaker org.onosproject.net.device.DeviceHandshaker used on opensource projects

Example 1 with DeviceHandshaker

use of org.onosproject.net.device.DeviceHandshaker in project onos by opennetworkinglab.

the class GeneralDeviceProvider method roleChanged.

@Override
public void roleChanged(DeviceId deviceId, MastershipRole newRole) {
    final MastershipInfo mastershipInfo = mastershipService.getMastershipFor(deviceId);
    final NodeId localNodeId = clusterService.getLocalNode().id();
    if (!mastershipInfo.getRole(localNodeId).equals(newRole)) {
        log.warn("Inconsistent mastership info for {}! Requested {}, but " + "mastership service reports {}, will apply the latter...", deviceId, newRole, mastershipInfo.getRole(localNodeId));
        newRole = mastershipInfo.getRole(localNodeId);
    }
    final DeviceHandshaker handshaker = getBehaviour(deviceId, DeviceHandshaker.class);
    if (handshaker == null) {
        log.error("Null handshaker. Unable to notify role {} to {}", newRole, deviceId);
        return;
    }
    // Derive preference value.
    final int preference;
    switch(newRole) {
        case MASTER:
            preference = 0;
            break;
        case STANDBY:
            preference = mastershipInfo.backups().indexOf(localNodeId) + 1;
            if (preference == 0) {
                // Not found in list.
                log.error("Unable to derive mastership preference for {}, " + "requested role {} but local node ID was " + "not found among list of backup nodes " + "reported by mastership service", deviceId, newRole);
                return;
            }
            break;
        case NONE:
            // No preference for NONE, apply as is.
            Pair<MastershipRole, Integer> pairRolePref = Pair.of(newRole, -1);
            if (log.isDebugEnabled()) {
                log.debug("Notifying role {} to {}", newRole, deviceId);
            } else if (!pairRolePref.equals(lastRoleRequest.get(deviceId))) {
                log.info("Notifying role {} to {}", newRole, deviceId);
            }
            lastRoleRequest.put(deviceId, pairRolePref);
            handshaker.roleChanged(newRole);
            return;
        default:
            log.error("Unrecognized mastership role {}", newRole);
            return;
    }
    Pair<MastershipRole, Integer> pairRolePref = Pair.of(newRole, preference);
    if (log.isDebugEnabled()) {
        log.debug("Notifying role {} (preference {}) for term {} to {}", newRole, preference, mastershipInfo.term(), deviceId);
    } else if (!pairRolePref.equals(lastRoleRequest.get(deviceId))) {
        log.info("Notifying role {} (preference {}) for term {} to {}", newRole, preference, mastershipInfo.term(), deviceId);
    }
    lastRoleRequest.put(deviceId, pairRolePref);
    try {
        handshaker.roleChanged(preference, mastershipInfo.term());
    } catch (UnsupportedOperationException e) {
        // Preference-based method not supported.
        handshaker.roleChanged(newRole);
    }
}

Example 2 with DeviceHandshaker

use of org.onosproject.net.device.DeviceHandshaker in project onos by opennetworkinglab.

the class GeneralDeviceProvider method forgeDeviceDescription.

private DeviceDescription forgeDeviceDescription(DeviceId deviceId, boolean defaultAvailable) {
    // Uses handshaker and provider config to get driver data.
    final DeviceHandshaker handshaker = getBehaviour(deviceId, DeviceHandshaker.class);
    final Driver driver = handshaker != null ? handshaker.handler().driver() : null;
    return new DefaultDeviceDescription(deviceId.uri(), Device.Type.SWITCH, driver != null ? driver.manufacturer() : UNKNOWN, driver != null ? driver.hwVersion() : UNKNOWN, driver != null ? driver.swVersion() : UNKNOWN, UNKNOWN, new ChassisId(), defaultAvailable, DefaultAnnotations.EMPTY);
}

Example 3 with DeviceHandshaker

use of org.onosproject.net.device.DeviceHandshaker in project onos by opennetworkinglab.

the class PiPipeconfWatchdogManager method probeTask.

private void probeTask(Device device) {
    if (!isLocalMaster(device)) {
        return;
    }
    final PiPipeconfId pipeconfId = pipeconfMappingStore.getPipeconfId(device.id());
    if (pipeconfId == null || !device.is(PiPipelineProgrammable.class)) {
        return;
    }
    if (pipeconfService.getPipeconf(pipeconfId).isEmpty()) {
        log.warn("Pipeconf {} is not registered, skipping probe for {}", pipeconfId, device.id());
        return;
    }
    final PiPipeconf pipeconf = pipeconfService.getPipeconf(pipeconfId).get();
    if (!device.is(DeviceHandshaker.class)) {
        log.error("Missing DeviceHandshaker behavior for {}", device.id());
        return;
    }
    final boolean success = doSetPipeconfIfRequired(device, pipeconf);
    // the mastership after pipeline probe returns.
    if (isLocalMaster(device)) {
        // (next reconcile interval)
        if (success) {
            signalStatusReady(device.id());
            signalStatusConfigured(device.id());
        } else {
            // When a network partition occurs watchdog is stuck for LONG_TIMEOUT
            // before returning and will mark the device offline. However, in the
            // meanwhile the mastership has been passed to another instance which is
            // already connected and has already marked the device online.
            signalStatusUnknown(device.id());
        }
    } else {
        log.warn("No longer the master for {} aborting probe task", device.id());
    }
}

Example 4 with DeviceHandshaker

use of org.onosproject.net.device.DeviceHandshaker in project onos by opennetworkinglab.

the class PiPipeconfWatchdogManager method doSetPipeconfIfRequired.

/**
 * Returns true if the given device is known to be configured with the given
 * pipeline, false otherwise. If necessary, this method enforces setting the
 * given pipeconf using drivers.
 *
 * @param device   device
 * @param pipeconf pipeconf
 * @return boolean
 */
private boolean doSetPipeconfIfRequired(Device device, PiPipeconf pipeconf) {
    log.debug("Starting watchdog task for {} ({})", device.id(), pipeconf.id());
    final PiPipelineProgrammable pipelineProg = device.as(PiPipelineProgrammable.class);
    final DeviceHandshaker handshaker = device.as(DeviceHandshaker.class);
    if (!handshaker.hasConnection()) {
        log.warn("There is no connectivity with {}", device.id());
        return false;
    }
    if (Futures.getUnchecked(pipelineProg.isPipeconfSet(pipeconf)) && configuredDevices.contains(device.id())) {
        log.debug("Pipeconf {} already configured on {}", pipeconf.id(), device.id());
        return true;
    }
    return Futures.getUnchecked(pipelineProg.setPipeconf(pipeconf));
}

Example 5 with DeviceHandshaker

use of org.onosproject.net.device.DeviceHandshaker in project onos by opennetworkinglab.

the class GeneralDeviceProvider method handleConnectionSetup.

private void handleConnectionSetup(DeviceId deviceId) {
    assertConfig(deviceId);
    // Bind pipeconf (if any and if device is capable).
    bindPipeconfIfRequired(deviceId);
    // Get handshaker.
    final DeviceHandshaker handshaker = handshakerOrFail(deviceId);
    if (handshaker.hasConnection() || handshakersWithListeners.containsKey(deviceId)) {
        throw new DeviceTaskException("connection already exists");
    }
    // Add device agent listener.
    handshakersWithListeners.put(deviceId, handshaker);
    handshaker.addDeviceAgentListener(id(), deviceAgentListener);
    // Start connection via handshaker.
    if (!handshaker.connect()) {
        // Failed! Remove listeners.
        handshaker.removeDeviceAgentListener(id());
        handshakersWithListeners.remove(deviceId);
        // Clean up connection state leftovers.
        handshaker.disconnect();
        throw new DeviceTaskException("connection failed");
    }
    createOrUpdateDevice(deviceId, false);
// From here we expect a CHANNEL_OPEN event to update availability.
}