X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?p=controller.git;a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-inmemory-datastore%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fmd%2Fsal%2Fdom%2Fstore%2Fimpl%2FInMemoryDOMDataStore.java;h=3582ff6ef1061749f1649cc58aed21def801d002;hp=deddd6938ae477eeebbd9fdeb50c79b6d3694eab;hb=7292faba613ab556babd7bbcdd78984f5668bf9b;hpb=5834d6db8a5b2f56ec469ceafd899a94a69f7b91 diff --git a/opendaylight/md-sal/sal-inmemory-datastore/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/InMemoryDOMDataStore.java b/opendaylight/md-sal/sal-inmemory-datastore/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/InMemoryDOMDataStore.java index deddd6938a..3582ff6ef1 100644 --- a/opendaylight/md-sal/sal-inmemory-datastore/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/InMemoryDOMDataStore.java +++ b/opendaylight/md-sal/sal-inmemory-datastore/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/InMemoryDOMDataStore.java @@ -7,26 +7,26 @@ */ 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.dom.store.impl.SnapshotBackedWriteTransaction.TransactionReadyPrototype; +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.tree.ListenerTree; 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.DOMStoreThreePhaseCommitCohort; 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; @@ -35,9 +35,9 @@ import org.opendaylight.yangtools.util.concurrent.QueuedNotificationManager; 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; @@ -52,32 +52,27 @@ import org.slf4j.LoggerFactory; * * 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, SchemaContextListener, AutoCloseable { +public class InMemoryDOMDataStore extends TransactionReadyPrototype implements DOMStore, Identifiable, SchemaContextListener, AutoCloseable, DOMStoreTreeChangePublisher { private static final Logger LOG = LoggerFactory.getLogger(InMemoryDOMDataStore.class); - private static final ListenableFuture SUCCESSFUL_FUTURE = Futures.immediateFuture(null); - private static final ListenableFuture CAN_COMMIT_FUTURE = Futures.immediateFuture(Boolean.TRUE); private static final Invoker, DOMImmutableDataChangeEvent> DCL_NOTIFICATION_MGR_INVOKER = - new Invoker, DOMImmutableDataChangeEvent>() { - @Override - public void invokeListener(final DataChangeListenerRegistration listener, - final DOMImmutableDataChangeEvent notification ) { - final AsyncDataChangeListener> inst = listener.getInstance(); - if (inst != null) { - inst.onDataChanged(notification); - } + (listener, notification) -> { + final AsyncDataChangeListener> 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 final QueuedNotificationManager, DOMImmutableDataChangeEvent> dataChangeListenerNotificationManager; + private final InMemoryDOMStoreTreeChangePublisher changePublisher; private final ExecutorService dataChangeListenerExecutor; private final boolean debugTransactions; private final String name; @@ -85,10 +80,12 @@ public class InMemoryDOMDataStore extends TransactionReadyPrototype implements D 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); @@ -98,6 +95,18 @@ public class InMemoryDOMDataStore extends TransactionReadyPrototype implements D new QueuedNotificationManager<>(this.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) { @@ -115,17 +124,17 @@ public class InMemoryDOMDataStore extends TransactionReadyPrototype implements D @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 @@ -200,91 +209,42 @@ public class InMemoryDOMDataStore extends TransactionReadyPrototype implements D } @Override - protected void transactionAborted(final SnapshotBackedWriteTransaction tx) { + public synchronized ListenerRegistration registerTreeChangeListener(final YangInstanceIdentifier treeId, final L listener) { + /* + * Make sure commit is not occurring right now. Listener has to be + * registered and its state capture enqueued at a consistent point. + */ + return changePublisher.registerTreeChangeListener(treeId, listener, dataTree.takeSnapshot()); + } + + @Override + protected void transactionAborted(final SnapshotBackedWriteTransaction 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 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 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 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()); - transaction.warnDebugContext(LOG); - 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); - transaction.warnDebugContext(LOG); - - // 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 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 abort() { - candidate = null; - return SUCCESSFUL_FUTURE; - } + void validate(final DataTreeModification modification) throws DataValidationFailedException { + dataTree.validate(modification); + } - @Override - public ListenableFuture 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); - 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); } }