Examples with MastershipTerm org.onosproject.mastership.MastershipTerm used on opensource projects

Example 1 with MastershipTerm

use of org.onosproject.mastership.MastershipTerm in project onos by opennetworkinglab.

the class MastershipTermCodecTest method testMastershipTermDecode.

/**
 * Tests decoding of mastership term JSON object.
 */
@Test
public void testMastershipTermDecode() throws IOException {
    MastershipTerm mastershipTerm = getMastershipTerm("MastershipTerm.json");
    assertThat(mastershipTerm.master().id(), is("1"));
    assertThat(mastershipTerm.termNumber(), is(10L));
}

Example 2 with MastershipTerm

use of org.onosproject.mastership.MastershipTerm in project onos by opennetworkinglab.

the class MastershipTermCodecTest method getMastershipTerm.

/**
 * Reads in a mastership term from the given resource and decodes it.
 *
 * @param resourceName resource to use to read the JSON for the rule
 * @return decoded mastership term object
 * @throws IOException if processing the resource fails
 */
private MastershipTerm getMastershipTerm(String resourceName) throws IOException {
    InputStream jsonStream = MastershipTermCodecTest.class.getResourceAsStream(resourceName);
    JsonNode json = context.mapper().readTree(jsonStream);
    assertThat(json, notNullValue());
    MastershipTerm mastershipTerm = mastershipTermCodec.decode((ObjectNode) json, context);
    assertThat(mastershipTerm, notNullValue());
    return mastershipTerm;
}

Example 3 with MastershipTerm

use of org.onosproject.mastership.MastershipTerm in project onos by opennetworkinglab.

the class DeviceManager method reassertRole.

/**
 * Reassert role for specified device connected to this node.
 *
 * @param did      device identifier
 * @param nextRole role to apply. If NONE is specified,
 *                 it will ask mastership service for a role and apply it.
 */
private void reassertRole(final DeviceId did, final MastershipRole nextRole) {
    MastershipRole myNextRole = nextRole;
    if (myNextRole == NONE && upgradeService.isLocalActive()) {
        try {
            mastershipService.requestRoleFor(did).get();
            MastershipTerm term = termService.getMastershipTerm(did);
            if (term != null && localNodeId.equals(term.master())) {
                myNextRole = MASTER;
            } else {
                myNextRole = STANDBY;
            }
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
            log.error("Interrupted waiting for Mastership", e);
        } catch (ExecutionException e) {
            log.error("Encountered an error waiting for Mastership", e);
        }
    }
    switch(myNextRole) {
        case MASTER:
            final Device device = getDevice(did);
            if (device != null && !isAvailable(did) && canMarkOnline(device)) {
                post(store.markOnline(did));
            }
            // TODO: should apply role only if there is mismatch
            log.debug("Applying role {} to {}", myNextRole, did);
            if (!applyRoleAndProbe(did, MASTER)) {
                log.warn("Unsuccessful applying role {} to {}", myNextRole, did);
                // immediately failed to apply role
                updateMastershipFor(did);
            // FIXME disconnect?
            }
            break;
        case STANDBY:
            log.debug("Applying role {} to {}", myNextRole, did);
            if (!applyRoleAndProbe(did, STANDBY)) {
                log.warn("Unsuccessful applying role {} to {}", myNextRole, did);
                // immediately failed to apply role
                updateMastershipFor(did);
            // FIXME disconnect?
            }
            break;
        case NONE:
            break;
        default:
            // should never reach here
            log.error("You didn't see anything. I did not exist.");
            break;
    }
}

Example 4 with MastershipTerm

use of org.onosproject.mastership.MastershipTerm in project onos by opennetworkinglab.

the class DeviceManager method handleMastershipEvent.

private void handleMastershipEvent(MastershipEvent event) {
    log.debug("Handling mastership event");
    final DeviceId did = event.subject();
    // myNextRole suggested by MastershipService event
    MastershipRole myNextRole;
    if (event.type() == MastershipEvent.Type.SUSPENDED) {
        // FIXME STANDBY OR NONE?
        myNextRole = NONE;
    } else if (localNodeId.equals(event.roleInfo().master())) {
        // confirm latest info
        MastershipTerm term = termService.getMastershipTerm(did);
        final boolean iHaveControl = term != null && localNodeId.equals(term.master());
        if (iHaveControl) {
            myNextRole = MASTER;
        } else {
            myNextRole = STANDBY;
        }
    } else if (event.roleInfo().backups().contains(localNodeId)) {
        myNextRole = STANDBY;
    } else {
        myNextRole = NONE;
    }
    log.debug("Device {} local status is {}", did, localStatus(did));
    final boolean isGracePeriodOn = inGracePeriod(did);
    final boolean isReachable = isReachable(did, isGracePeriodOn);
    // Passed the grace period and it is still not reachable
    if (!isGracePeriodOn && !isReachable) {
        // device is not connected to this node, nevertheless we should get a role
        if (mastershipService.getLocalRole(did) == NONE) {
            log.debug("Node was instructed to be {} role for {}, " + "but this node cannot reach the device " + "and role is already None. Asking a new role " + "and then apply the disconnection protocol.", myNextRole, did);
            try {
                mastershipService.requestRoleFor(did).get();
            } catch (InterruptedException e) {
                Thread.currentThread().interrupt();
                log.error("Interrupted waiting for Mastership", e);
            } catch (ExecutionException e) {
                log.error("Encountered an error waiting for Mastership", e);
            }
        } else if (myNextRole != NONE) {
            log.warn("Node was instructed to be {} role for {}, " + "but this node cannot reach the device. " + "Apply the disconnection protocol.", myNextRole, did);
        }
        // Let's put some order in the candidates list
        roleToAcknowledge.remove(did);
        updateMastershipFor(did);
    } else if (isReachable) {
        // cost us a lot as it is equivalent to a probe.
        if (store.getDevice(did) != null) {
            log.info("{} is reachable - reasserting the role", did);
            reassertRole(did, myNextRole);
        } else {
            log.debug("Device is not yet/no longer in the store: {}", did);
        }
    } else {
        // Do not proceed furthermore if the grace period is still on
        log.debug("Skipping mastership event {}", event);
    }
}

Example 5 with MastershipTerm

use of org.onosproject.mastership.MastershipTerm in project onos by opennetworkinglab.

the class MastershipTermCodecTest method testMastershipTermEncode.

/**
 * Tests encoding of a mastership term object.
 */
@Test
public void testMastershipTermEncode() {
    NodeId masterNodeId = NodeId.nodeId("1");
    long termNumber = 10;
    MastershipTerm mastershipTerm = MastershipTerm.of(masterNodeId, termNumber);
    ObjectNode mastershipTermJson = mastershipTermCodec.encode(mastershipTerm, context);
    assertThat(mastershipTermJson, MastershipTermJsonMatcher.matchesMastershipTerm(mastershipTerm));
}