Examples with CommandCreationContext org.neo4j.storageengine.api.CommandCreationContext used on opensource projects

Example 1 with CommandCreationContext

use of org.neo4j.storageengine.api.CommandCreationContext in project neo4j by neo4j.

the class BatchingNeoStoresTest method someDataInTheDatabase.

private void someDataInTheDatabase(Config config) throws Exception {
    NullLog nullLog = NullLog.getInstance();
    try (JobScheduler scheduler = JobSchedulerFactory.createInitialisedScheduler();
        PageCache pageCache = new ConfiguringPageCacheFactory(fileSystem, Config.defaults(), PageCacheTracer.NULL, nullLog, scheduler, Clocks.nanoClock(), new MemoryPools()).getOrCreatePageCache();
        Lifespan life = new Lifespan()) {
        // TODO this little dance with TokenHolders is really annoying and must be solved with a better abstraction
        DeferredInitializedTokenCreator propertyKeyTokenCreator = new DeferredInitializedTokenCreator() {

            @Override
            void create(String name, boolean internal, int id) {
                txState.propertyKeyDoCreateForName(name, internal, id);
            }
        };
        DeferredInitializedTokenCreator labelTokenCreator = new DeferredInitializedTokenCreator() {

            @Override
            void create(String name, boolean internal, int id) {
                txState.labelDoCreateForName(name, internal, id);
            }
        };
        DeferredInitializedTokenCreator relationshipTypeTokenCreator = new DeferredInitializedTokenCreator() {

            @Override
            void create(String name, boolean internal, int id) {
                txState.relationshipTypeDoCreateForName(name, internal, id);
            }
        };
        TokenHolders tokenHolders = new TokenHolders(new DelegatingTokenHolder(propertyKeyTokenCreator, TokenHolder.TYPE_PROPERTY_KEY), new DelegatingTokenHolder(labelTokenCreator, TokenHolder.TYPE_LABEL), new DelegatingTokenHolder(relationshipTypeTokenCreator, TokenHolder.TYPE_RELATIONSHIP_TYPE));
        IndexConfigCompleter indexConfigCompleter = index -> index;
        RecoveryCleanupWorkCollector recoveryCleanupWorkCollector = immediate();
        RecordStorageEngine storageEngine = life.add(new RecordStorageEngine(databaseLayout, Config.defaults(), pageCache, fileSystem, NullLogProvider.getInstance(), tokenHolders, new DatabaseSchemaState(NullLogProvider.getInstance()), new StandardConstraintSemantics(), indexConfigCompleter, LockService.NO_LOCK_SERVICE, new DatabaseHealth(PanicEventGenerator.NO_OP, nullLog), new DefaultIdGeneratorFactory(fileSystem, immediate(), DEFAULT_DATABASE_NAME), new DefaultIdController(), recoveryCleanupWorkCollector, PageCacheTracer.NULL, true, INSTANCE, writable(), CommandLockVerification.Factory.IGNORE, LockVerificationMonitor.Factory.IGNORE));
        // Create the relationship type token
        TxState txState = new TxState();
        NeoStores neoStores = storageEngine.testAccessNeoStores();
        CommandCreationContext commandCreationContext = storageEngine.newCommandCreationContext(INSTANCE);
        commandCreationContext.initialize(NULL);
        propertyKeyTokenCreator.initialize(neoStores.getPropertyKeyTokenStore(), txState);
        labelTokenCreator.initialize(neoStores.getLabelTokenStore(), txState);
        relationshipTypeTokenCreator.initialize(neoStores.getRelationshipTypeTokenStore(), txState);
        int relTypeId = tokenHolders.relationshipTypeTokens().getOrCreateId(RELTYPE.name());
        apply(txState, commandCreationContext, storageEngine);
        // Finally, we're initialized and ready to create two nodes and a relationship
        txState = new TxState();
        long node1 = commandCreationContext.reserveNode();
        long node2 = commandCreationContext.reserveNode();
        txState.nodeDoCreate(node1);
        txState.nodeDoCreate(node2);
        txState.relationshipDoCreate(commandCreationContext.reserveRelationship(), relTypeId, node1, node2);
        apply(txState, commandCreationContext, storageEngine);
        neoStores.flush(NULL);
    }
}

Example 2 with CommandCreationContext

use of org.neo4j.storageengine.api.CommandCreationContext in project neo4j by neo4j.

the class CommitProcessTracingIT method tracePageCacheAccessOnCommandCreation.

@Test
void tracePageCacheAccessOnCommandCreation() throws KernelException {
    long sourceId;
    try (Transaction transaction = database.beginTx()) {
        sourceId = transaction.createNode(Label.label("a")).getId();
        transaction.commit();
    }
    var pageCacheTracer = new DefaultPageCacheTracer();
    try (var cursorContext = new CursorContext(pageCacheTracer.createPageCursorTracer("tracePageCacheAccessOnCommandCreation"));
        var reader = storageEngine.newReader()) {
        assertZeroCursor(cursorContext);
        try (CommandCreationContext context = storageEngine.newCommandCreationContext(INSTANCE)) {
            context.initialize(cursorContext);
            List<StorageCommand> commands = new ArrayList<>();
            var txState = new TxState();
            txState.nodeDoAddLabel(1, sourceId);
            storageEngine.createCommands(commands, txState, reader, context, IGNORE, LockTracer.NONE, 0, NO_DECORATION, cursorContext, INSTANCE);
        }
        assertCursor(cursorContext, 2);
    }
}

Example 3 with CommandCreationContext

use of org.neo4j.storageengine.api.CommandCreationContext in project neo4j by neo4j.

the class PlainOperationsTest method shouldAcquireTxStateBeforeAllocatingRelationshipId.

@Test
void shouldAcquireTxStateBeforeAllocatingRelationshipId() throws EntityNotFoundException {
    // given
    KernelTransactionImplementation ktx = mock(KernelTransactionImplementation.class);
    when(ktx.txState()).thenReturn(mock(TransactionState.class));
    Locks.Client lockClient = mock(Locks.Client.class);
    when(ktx.lockClient()).thenReturn(lockClient);
    when(ktx.securityContext()).thenReturn(SecurityContext.AUTH_DISABLED);
    when(ktx.securityAuthorizationHandler()).thenReturn(new SecurityAuthorizationHandler(CommunitySecurityLog.NULL_LOG));
    CommandCreationContext commandCreationContext = mock(CommandCreationContext.class);
    AllStoreHolder allStoreHolder = mock(AllStoreHolder.class);
    when(allStoreHolder.nodeExists(anyLong())).thenReturn(true);
    Operations operations = new Operations(allStoreHolder, mock(StorageReader.class), mock(IndexTxStateUpdater.class), commandCreationContext, ktx, mock(KernelToken.class), mock(DefaultPooledCursors.class), mock(ConstraintIndexCreator.class), mock(ConstraintSemantics.class), mock(IndexingProvidersService.class), Config.defaults(), INSTANCE, () -> KernelVersion.LATEST, mock(DbmsRuntimeRepository.class));
    // when
    operations.relationshipCreate(0, 1, 2);
    // then
    InOrder inOrder = inOrder(ktx, commandCreationContext);
    inOrder.verify(ktx).txState();
    inOrder.verify(commandCreationContext).reserveRelationship();
    inOrder.verifyNoMoreInteractions();
}

Example 4 with CommandCreationContext

use of org.neo4j.storageengine.api.CommandCreationContext in project neo4j by neo4j.

the class PlainOperationsTest method shouldAcquireTxStateBeforeAllocatingNodeIdInBareCreateMethod.

@Test
void shouldAcquireTxStateBeforeAllocatingNodeIdInBareCreateMethod() {
    // given
    KernelTransactionImplementation ktx = mock(KernelTransactionImplementation.class);
    when(ktx.txState()).thenReturn(mock(TransactionState.class));
    when(ktx.securityContext()).thenReturn(SecurityContext.AUTH_DISABLED);
    when(ktx.securityAuthorizationHandler()).thenReturn(new SecurityAuthorizationHandler(CommunitySecurityLog.NULL_LOG));
    CommandCreationContext commandCreationContext = mock(CommandCreationContext.class);
    Operations operations = new Operations(mock(AllStoreHolder.class), mock(StorageReader.class), mock(IndexTxStateUpdater.class), commandCreationContext, ktx, mock(KernelToken.class), mock(DefaultPooledCursors.class), mock(ConstraintIndexCreator.class), mock(ConstraintSemantics.class), mock(IndexingProvidersService.class), Config.defaults(), INSTANCE, () -> KernelVersion.LATEST, mock(DbmsRuntimeRepository.class));
    // when
    operations.nodeCreate();
    // then
    InOrder inOrder = inOrder(ktx, commandCreationContext);
    inOrder.verify(ktx).txState();
    inOrder.verify(commandCreationContext).reserveNode();
    inOrder.verifyNoMoreInteractions();
}

Example 5 with CommandCreationContext

use of org.neo4j.storageengine.api.CommandCreationContext in project neo4j by neo4j.

the class PlainOperationsTest method shouldAcquireTxStateBeforeAllocatingNodeIdInCreateWithLabelsMethod.

@Test
void shouldAcquireTxStateBeforeAllocatingNodeIdInCreateWithLabelsMethod() throws ConstraintValidationException {
    // given
    KernelTransactionImplementation ktx = mock(KernelTransactionImplementation.class);
    when(ktx.txState()).thenReturn(mock(TransactionState.class));
    when(ktx.securityAuthorizationHandler()).thenReturn(new SecurityAuthorizationHandler(CommunitySecurityLog.NULL_LOG));
    Locks.Client lockClient = mock(Locks.Client.class);
    when(ktx.lockClient()).thenReturn(lockClient);
    when(ktx.securityContext()).thenReturn(SecurityContext.AUTH_DISABLED);
    CommandCreationContext commandCreationContext = mock(CommandCreationContext.class);
    DefaultPooledCursors cursors = mock(DefaultPooledCursors.class);
    when(cursors.allocateFullAccessNodeCursor(NULL)).thenReturn(mock(FullAccessNodeCursor.class));
    when(cursors.allocateFullAccessPropertyCursor(NULL, INSTANCE)).thenReturn(mock(FullAccessPropertyCursor.class));
    Operations operations = new Operations(mock(AllStoreHolder.class), mock(StorageReader.class), mock(IndexTxStateUpdater.class), commandCreationContext, ktx, mock(KernelToken.class), cursors, mock(ConstraintIndexCreator.class), mock(ConstraintSemantics.class), mock(IndexingProvidersService.class), Config.defaults(), INSTANCE, () -> KernelVersion.LATEST, mock(DbmsRuntimeRepository.class));
    operations.initialize(NULL);
    // when
    operations.nodeCreateWithLabels(new int[] { 1 });
    // then
    InOrder inOrder = inOrder(ktx, commandCreationContext);
    inOrder.verify(ktx).txState();
    inOrder.verify(commandCreationContext).reserveNode();
    // for the constraints check for the label
    inOrder.verify(ktx).txState();
    inOrder.verifyNoMoreInteractions();
}