import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.JdkFutureAdapters;
import com.google.common.util.concurrent.ListenableFuture;
+import io.netty.util.HashedWheelTimer;
import io.netty.util.TimerTask;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
-import java.util.concurrent.Semaphore;
import java.util.concurrent.TimeUnit;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
-import org.opendaylight.controller.md.sal.common.api.clustering.CandidateAlreadyRegisteredException;
-import org.opendaylight.controller.md.sal.common.api.clustering.Entity;
-import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipCandidateRegistration;
-import org.opendaylight.controller.md.sal.common.api.clustering.EntityOwnershipService;
import org.opendaylight.mdsal.singleton.common.api.ServiceGroupIdentifier;
import org.opendaylight.openflowplugin.api.OFConstants;
import org.opendaylight.openflowplugin.api.openflow.device.DeviceInfo;
import org.opendaylight.openflowplugin.api.openflow.device.RequestContext;
-import org.opendaylight.openflowplugin.api.openflow.lifecycle.LifecycleConductor;
import org.opendaylight.openflowplugin.api.openflow.role.RoleContext;
+import org.opendaylight.openflowplugin.api.openflow.role.RoleManager;
import org.opendaylight.openflowplugin.impl.rpc.AbstractRequestContext;
import org.opendaylight.openflowplugin.impl.util.DeviceStateUtil;
import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
class RoleContextImpl implements RoleContext {
private static final Logger LOG = LoggerFactory.getLogger(RoleContextImpl.class);
- private static final int TIMEOUT = 12;
-
- private final EntityOwnershipService entityOwnershipService;
- private volatile EntityOwnershipCandidateRegistration entityOwnershipCandidateRegistration = null;
- private volatile EntityOwnershipCandidateRegistration txEntityOwnershipCandidateRegistration = null;
-
- private final Entity entity;
- private final Entity txEntity;
+ // Maximum limit of timeout retries when cleaning DS, to prevent infinite recursive loops
+ private static final int MAX_CLEAN_DS_RETRIES = 3;
private SalRoleService salRoleService = null;
-
- private final Semaphore roleChangeGuard = new Semaphore(1, true);
-
- private final LifecycleConductor conductor;
+ private final HashedWheelTimer hashedWheelTimer;
private final DeviceInfo deviceInfo;
private CONTEXT_STATE state;
+ private final RoleManager myManager;
RoleContextImpl(final DeviceInfo deviceInfo,
- final EntityOwnershipService entityOwnershipService,
- final Entity entity,
- final Entity txEntity,
- final LifecycleConductor lifecycleConductor) {
- this.entityOwnershipService = entityOwnershipService;
- this.entity = entity;
- this.txEntity = txEntity;
- this.conductor = lifecycleConductor;
+ final HashedWheelTimer hashedWheelTimer,
+ final RoleManager myManager) {
this.deviceInfo = deviceInfo;
- state = CONTEXT_STATE.INITIALIZATION;
- }
-
- @Override
- public boolean initialization() {
- LOG.info("Initialization main candidate for node {}", getDeviceInfo().getNodeId());
- setState(CONTEXT_STATE.WORKING);
- return registerCandidate(this.entity);
- }
-
- @Override
- public void unregisterAllCandidates() {
- LOG.info("Role context closed, unregistering all candidates for ownership for node {}", getDeviceInfo().getNodeId());
- if (isMainCandidateRegistered()) {
- unregisterCandidate(this.entity);
- }
- if (isTxCandidateRegistered()) {
- unregisterCandidate(this.txEntity);
- }
+ state = CONTEXT_STATE.WORKING;
+ this.myManager = myManager;
+ this.hashedWheelTimer = hashedWheelTimer;
}
@Nullable
@Override
public <T> RequestContext<T> createRequestContext() {
- return new AbstractRequestContext<T>(conductor.reserveXidForDeviceMessage(getDeviceInfo())) {
+ return new AbstractRequestContext<T>(deviceInfo.reserveXidForDeviceMessage()) {
@Override
public void close() {
}
return this.salRoleService;
}
- @Override
- public Entity getEntity() {
- return this.entity;
- }
-
- @Override
- public Entity getTxEntity() {
- return this.txEntity;
- }
-
- @Override
- public boolean isMainCandidateRegistered() {
- return entityOwnershipCandidateRegistration != null;
- }
-
- @Override
- public boolean isTxCandidateRegistered() {
- return txEntityOwnershipCandidateRegistration != null;
- }
-
- @Override
- public boolean registerCandidate(final Entity entity_) {
- boolean permit = false;
- try {
- permit = roleChangeGuard.tryAcquire(TIMEOUT, TimeUnit.SECONDS);
- if(permit) {
- LOG.debug("Register candidate for entity {}", entity_);
- if (entity_.equals(this.entity)) {
- entityOwnershipCandidateRegistration = entityOwnershipService.registerCandidate(entity_);
- } else {
- txEntityOwnershipCandidateRegistration = entityOwnershipService.registerCandidate(entity_);
- }
- } else {
- return false;
- }
- } catch (final CandidateAlreadyRegisteredException e) {
- LOG.warn("Candidate for entity {} is already registered.", entity_.getType());
- return false;
- } catch (final InterruptedException e) {
- LOG.warn("Cannot acquire semaphore for register entity {} candidate.", entity_.getType());
- return false;
- } finally {
- if (permit) {
- roleChangeGuard.release();
- }
- }
- return true;
- }
-
- @Override
- public boolean unregisterCandidate(final Entity entity_) {
- boolean permit = false;
- try {
- permit = roleChangeGuard.tryAcquire(TIMEOUT, TimeUnit.SECONDS);
- if(permit) {
- if (entity_.equals(this.entity)) {
- if (entityOwnershipCandidateRegistration != null) {
- LOG.debug("Unregister candidate for entity {}", entity_);
- entityOwnershipCandidateRegistration.close();
- entityOwnershipCandidateRegistration = null;
- }
- } else {
- if (txEntityOwnershipCandidateRegistration != null) {
- LOG.debug("Unregister candidate for tx entity {}", entity_);
- txEntityOwnershipCandidateRegistration.close();
- txEntityOwnershipCandidateRegistration = null;
- }
- }
- } else {
- return false;
- }
- } catch (final InterruptedException e) {
- LOG.warn("Cannot acquire semaphore for unregister entity {} candidate.", entity_.getType());
- return false;
- } finally {
- if (permit) {
- roleChangeGuard.release();
- }
- }
- return true;
- }
-
- @Override
- public void close() {
- setState(CONTEXT_STATE.TERMINATION);
- unregisterAllCandidates();
- }
-
- public boolean isMaster(){
- return (txEntityOwnershipCandidateRegistration != null && entityOwnershipCandidateRegistration != null);
- }
-
@Override
public CONTEXT_STATE getState() {
return this.state;
}
public void startupClusterServices() throws ExecutionException, InterruptedException {
+ //TODO: Add callback ?
sendRoleChangeToDevice(OfpRole.BECOMEMASTER).get();
}
@Override
public ListenableFuture<Void> stopClusterServices() {
- return Futures.immediateFuture(null);
+ ListenableFuture<Void> future;
+ try {
+ //TODO: Add callback
+ sendRoleChangeToDevice(OfpRole.BECOMESLAVE).get();
+ } catch (InterruptedException | ExecutionException e) {
+ LOG.warn("Send role to device failed ", e);
+ } finally {
+ myManager.removeDeviceFromOperationalDS(deviceInfo, MAX_CLEAN_DS_RETRIES);
+ future = Futures.immediateFuture(null);
+ }
+ return future;
}
private ListenableFuture<RpcResult<SetRoleOutput>> sendRoleChangeToDevice(final OfpRole newRole) {
setRoleOutputFuture.cancel(true);
}
};
- conductor.newTimeout(timerTask, 10, TimeUnit.SECONDS);
+ hashedWheelTimer.newTimeout(timerTask, 10, TimeUnit.SECONDS);
}
return JdkFutureAdapters.listenInPoolThread(setRoleOutputFuture);
}
Code Review / openflowplugin.git / blobdiff