*/
package org.opendaylight.controller.md.sal.dom.store.impl;
-import static com.google.common.base.Preconditions.checkState;
-import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
-import com.google.common.util.concurrent.Futures;
-import com.google.common.util.concurrent.ListenableFuture;
+import java.util.Optional;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicLong;
import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
-import org.opendaylight.controller.md.sal.common.api.data.OptimisticLockFailedException;
-import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
+import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeChangeListener;
-import org.opendaylight.controller.md.sal.dom.store.impl.SnapshotBackedWriteTransaction.TransactionReadyPrototype;
import org.opendaylight.controller.md.sal.dom.store.impl.tree.ListenerTree;
-import org.opendaylight.controller.sal.core.spi.data.AbstractDOMStoreTransaction;
import org.opendaylight.controller.sal.core.spi.data.DOMStore;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreTreeChangePublisher;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
+import org.opendaylight.controller.sal.core.spi.data.SnapshotBackedTransactions;
+import org.opendaylight.controller.sal.core.spi.data.SnapshotBackedWriteTransaction;
+import org.opendaylight.controller.sal.core.spi.data.SnapshotBackedWriteTransaction.TransactionReadyPrototype;
import org.opendaylight.yangtools.concepts.AbstractListenerRegistration;
import org.opendaylight.yangtools.concepts.Identifiable;
import org.opendaylight.yangtools.concepts.ListenerRegistration;
import org.opendaylight.yangtools.util.concurrent.QueuedNotificationManager.Invoker;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.ConflictingModificationAppliedException;
import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeConfiguration;
import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeSnapshot;
import org.opendaylight.yangtools.yang.data.api.schema.tree.DataValidationFailedException;
*
* Implementation of {@link DOMStore} which uses {@link DataTree} and other
* classes such as {@link SnapshotBackedWriteTransaction}.
- * {@link SnapshotBackedReadTransaction} and {@link ResolveDataChangeEventsTask}
+ * {@link org.opendaylight.controller.sal.core.spi.data.SnapshotBackedReadTransaction} and {@link ResolveDataChangeEventsTask}
* to implement {@link DOMStore} contract.
*
*/
-public class InMemoryDOMDataStore extends TransactionReadyPrototype implements DOMStore, Identifiable<String>, SchemaContextListener, AutoCloseable, DOMStoreTreeChangePublisher {
+public class InMemoryDOMDataStore extends TransactionReadyPrototype<String> implements DOMStore, Identifiable<String>, SchemaContextListener, AutoCloseable, DOMStoreTreeChangePublisher {
private static final Logger LOG = LoggerFactory.getLogger(InMemoryDOMDataStore.class);
- private static final ListenableFuture<Void> SUCCESSFUL_FUTURE = Futures.immediateFuture(null);
- private static final ListenableFuture<Boolean> CAN_COMMIT_FUTURE = Futures.immediateFuture(Boolean.TRUE);
private static final Invoker<DataChangeListenerRegistration<?>, DOMImmutableDataChangeEvent> DCL_NOTIFICATION_MGR_INVOKER =
- new Invoker<DataChangeListenerRegistration<?>, DOMImmutableDataChangeEvent>() {
- @Override
- public void invokeListener(final DataChangeListenerRegistration<?> listener,
- final DOMImmutableDataChangeEvent notification ) {
- final AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>> inst = listener.getInstance();
- if (inst != null) {
- inst.onDataChanged(notification);
- }
+ (listener, notification) -> {
+ final AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>> inst = listener.getInstance();
+ if (inst != null) {
+ inst.onDataChanged(notification);
}
};
- private final DataTree dataTree = InMemoryDataTreeFactory.getInstance().create();
+ private final DataTree dataTree;
private final ListenerTree listenerTree = ListenerTree.create();
private final AtomicLong txCounter = new AtomicLong(0);
private volatile AutoCloseable closeable;
public InMemoryDOMDataStore(final String name, final ExecutorService dataChangeListenerExecutor) {
- this(name, dataChangeListenerExecutor, InMemoryDOMDataStoreConfigProperties.DEFAULT_MAX_DATA_CHANGE_LISTENER_QUEUE_SIZE, false);
+ this(name, LogicalDatastoreType.OPERATIONAL, dataChangeListenerExecutor,
+ InMemoryDOMDataStoreConfigProperties.DEFAULT_MAX_DATA_CHANGE_LISTENER_QUEUE_SIZE, false);
}
- public InMemoryDOMDataStore(final String name, final ExecutorService dataChangeListenerExecutor,
+ public InMemoryDOMDataStore(final String name, final LogicalDatastoreType type,
+ final ExecutorService dataChangeListenerExecutor,
final int maxDataChangeListenerQueueSize, final boolean debugTransactions) {
this.name = Preconditions.checkNotNull(name);
this.dataChangeListenerExecutor = Preconditions.checkNotNull(dataChangeListenerExecutor);
DCL_NOTIFICATION_MGR_INVOKER, maxDataChangeListenerQueueSize,
"DataChangeListenerQueueMgr");
changePublisher = new InMemoryDOMStoreTreeChangePublisher(this.dataChangeListenerExecutor, maxDataChangeListenerQueueSize);
+
+ switch (type) {
+ case CONFIGURATION:
+ dataTree = new InMemoryDataTreeFactory().create(DataTreeConfiguration.DEFAULT_CONFIGURATION);
+ break;
+ case OPERATIONAL:
+ dataTree = new InMemoryDataTreeFactory().create(DataTreeConfiguration.DEFAULT_OPERATIONAL);
+ break;
+ default:
+ throw new IllegalArgumentException("Data store " + type + " not supported");
+ }
}
public void setCloseable(final AutoCloseable closeable) {
@Override
public DOMStoreReadTransaction newReadOnlyTransaction() {
- return new SnapshotBackedReadTransaction(nextIdentifier(), debugTransactions, dataTree.takeSnapshot());
+ return SnapshotBackedTransactions.newReadTransaction(nextIdentifier(), debugTransactions, dataTree.takeSnapshot());
}
@Override
public DOMStoreReadWriteTransaction newReadWriteTransaction() {
- return new SnapshotBackedReadWriteTransaction(nextIdentifier(), debugTransactions, dataTree.takeSnapshot(), this);
+ return SnapshotBackedTransactions.newReadWriteTransaction(nextIdentifier(), debugTransactions, dataTree.takeSnapshot(), this);
}
@Override
public DOMStoreWriteTransaction newWriteOnlyTransaction() {
- return new SnapshotBackedWriteTransaction(nextIdentifier(), debugTransactions, dataTree.takeSnapshot(), this);
+ return SnapshotBackedTransactions.newWriteTransaction(nextIdentifier(), debugTransactions, dataTree.takeSnapshot(), this);
}
@Override
}
@Override
- protected void transactionAborted(final SnapshotBackedWriteTransaction tx) {
+ protected void transactionAborted(final SnapshotBackedWriteTransaction<String> tx) {
LOG.debug("Tx: {} is closed.", tx.getIdentifier());
}
@Override
- protected DOMStoreThreePhaseCommitCohort transactionReady(final SnapshotBackedWriteTransaction tx, final DataTreeModification tree) {
- LOG.debug("Tx: {} is submitted. Modifications: {}", tx.getIdentifier(), tree);
- return new ThreePhaseCommitImpl(tx, tree);
+ protected DOMStoreThreePhaseCommitCohort transactionReady(final SnapshotBackedWriteTransaction<String> tx,
+ final DataTreeModification modification,
+ final Exception readyError) {
+ LOG.debug("Tx: {} is submitted. Modifications: {}", tx.getIdentifier(), modification);
+ return new InMemoryDOMStoreThreePhaseCommitCohort(this, tx, modification, readyError);
}
- Object nextIdentifier() {
+ String nextIdentifier() {
return name + "-" + txCounter.getAndIncrement();
}
- private static void warnDebugContext(final AbstractDOMStoreTransaction<?> transaction) {
- final Throwable ctx = transaction.getDebugContext();
- if (ctx != null) {
- LOG.warn("Transaction {} has been allocated in the following context", transaction.getIdentifier(), ctx);
- }
+ void validate(final DataTreeModification modification) throws DataValidationFailedException {
+ dataTree.validate(modification);
}
- private final class ThreePhaseCommitImpl implements DOMStoreThreePhaseCommitCohort {
- private final SnapshotBackedWriteTransaction transaction;
- private final DataTreeModification modification;
-
- private ResolveDataChangeEventsTask listenerResolver;
- private DataTreeCandidate candidate;
-
- public ThreePhaseCommitImpl(final SnapshotBackedWriteTransaction writeTransaction, final DataTreeModification modification) {
- this.transaction = writeTransaction;
- this.modification = modification;
- }
-
- @Override
- public ListenableFuture<Boolean> canCommit() {
- try {
- dataTree.validate(modification);
- LOG.debug("Store Transaction: {} can be committed", transaction.getIdentifier());
- return CAN_COMMIT_FUTURE;
- } catch (ConflictingModificationAppliedException e) {
- LOG.warn("Store Tx: {} Conflicting modification for {}.", transaction.getIdentifier(),
- e.getPath());
- warnDebugContext(transaction);
- return Futures.immediateFailedFuture(new OptimisticLockFailedException("Optimistic lock failed.", e));
- } catch (DataValidationFailedException e) {
- LOG.warn("Store Tx: {} Data Precondition failed for {}.", transaction.getIdentifier(),
- e.getPath(), e);
- warnDebugContext(transaction);
-
- // For debugging purposes, allow dumping of the modification. Coupled with the above
- // precondition log, it should allow us to understand what went on.
- LOG.trace("Store Tx: {} modifications: {} tree: {}", modification, dataTree);
-
- return Futures.immediateFailedFuture(new TransactionCommitFailedException("Data did not pass validation.", e));
- } catch (Exception e) {
- LOG.warn("Unexpected failure in validation phase", e);
- return Futures.immediateFailedFuture(e);
- }
- }
-
- @Override
- public ListenableFuture<Void> preCommit() {
- try {
- candidate = dataTree.prepare(modification);
- listenerResolver = ResolveDataChangeEventsTask.create(candidate, listenerTree);
- return SUCCESSFUL_FUTURE;
- } catch (Exception e) {
- LOG.warn("Unexpected failure in pre-commit phase", e);
- return Futures.immediateFailedFuture(e);
- }
- }
-
- @Override
- public ListenableFuture<Void> abort() {
- candidate = null;
- return SUCCESSFUL_FUTURE;
- }
-
- @Override
- public ListenableFuture<Void> commit() {
- checkState(candidate != null, "Proposed subtree must be computed");
-
- /*
- * The commit has to occur atomically with regard to listener
- * registrations.
- */
- synchronized (InMemoryDOMDataStore.this) {
- dataTree.commit(candidate);
- changePublisher.publishChange(candidate);
- listenerResolver.resolve(dataChangeListenerNotificationManager);
- }
+ DataTreeCandidate prepare(final DataTreeModification modification) {
+ return dataTree.prepare(modification);
+ }
- return SUCCESSFUL_FUTURE;
- }
+ synchronized void commit(final DataTreeCandidate candidate) {
+ dataTree.commit(candidate);
+ changePublisher.publishChange(candidate);
+ ResolveDataChangeEventsTask.create(candidate, listenerTree).resolve(dataChangeListenerNotificationManager);
}
}
Code Review / controller.git / blobdiff