Examples with QueryExecutionEngine org.neo4j.kernel.impl.query.QueryExecutionEngine used on opensource projects

Example 1 with QueryExecutionEngine

use of org.neo4j.kernel.impl.query.QueryExecutionEngine in project neo4j by neo4j.

the class TransactionHandleTest method shouldRollbackTransactionIfExecutionErrorOccurs.

@Test
public void shouldRollbackTransactionIfExecutionErrorOccurs() throws Exception {
    // given
    TransitionalPeriodTransactionMessContainer kernel = mockKernel();
    TransitionalTxManagementKernelTransaction transactionContext = kernel.newTransaction(explicit, AUTH_DISABLED, -1);
    TransactionRegistry registry = mock(TransactionRegistry.class);
    QueryExecutionEngine executionEngine = mock(QueryExecutionEngine.class);
    TransactionalContext transactionalContext = prepareKernelWithQuerySession(kernel);
    when(executionEngine.executeQuery("query", map(), transactionalContext)).thenThrow(new NullPointerException());
    when(registry.begin(any(TransactionHandle.class))).thenReturn(1337L);
    TransactionHandle handle = getTransactionHandle(kernel, executionEngine, registry);
    ExecutionResultSerializer output = mock(ExecutionResultSerializer.class);
    // when
    handle.execute(statements(new Statement("query", map(), false, (ResultDataContent[]) null)), output, mock(HttpServletRequest.class));
    // then
    verify(transactionContext).rollback();
    verify(registry).forget(1337L);
    InOrder outputOrder = inOrder(output);
    outputOrder.verify(output).transactionCommitUri(uriScheme.txCommitUri(1337));
    outputOrder.verify(output).errors(argThat(hasErrors(Status.Statement.ExecutionFailed)));
    outputOrder.verify(output).finish();
    verifyNoMoreInteractions(output);
}

Example 2 with QueryExecutionEngine

use of org.neo4j.kernel.impl.query.QueryExecutionEngine in project neo4j by neo4j.

the class TransactionHandleTest method shouldSuspendTransactionAndReleaseForOtherRequestsAfterExecutingStatements.

@Test
public void shouldSuspendTransactionAndReleaseForOtherRequestsAfterExecutingStatements() throws Exception {
    // given
    TransitionalPeriodTransactionMessContainer kernel = mockKernel();
    TransitionalTxManagementKernelTransaction transactionContext = kernel.newTransaction(explicit, AUTH_DISABLED, -1);
    TransactionRegistry registry = mock(TransactionRegistry.class);
    QueryExecutionEngine executionEngine = mock(QueryExecutionEngine.class);
    TransactionalContext transactionalContext = prepareKernelWithQuerySession(kernel);
    Result executionResult = mock(Result.class);
    when(executionEngine.executeQuery("query", map(), transactionalContext)).thenReturn(executionResult);
    when(registry.begin(any(TransactionHandle.class))).thenReturn(1337L);
    TransactionHandle handle = getTransactionHandle(kernel, executionEngine, registry);
    ExecutionResultSerializer output = mock(ExecutionResultSerializer.class);
    // when
    handle.execute(statements(new Statement("query", map(), false, (ResultDataContent[]) null)), output, mock(HttpServletRequest.class));
    // then
    InOrder transactionOrder = inOrder(transactionContext, registry);
    transactionOrder.verify(transactionContext).suspendSinceTransactionsAreStillThreadBound();
    transactionOrder.verify(registry).release(1337L, handle);
    InOrder outputOrder = inOrder(output);
    outputOrder.verify(output).transactionCommitUri(uriScheme.txCommitUri(1337));
    outputOrder.verify(output).statementResult(executionResult, false, (ResultDataContent[]) null);
    outputOrder.verify(output).notifications(anyCollectionOf(Notification.class));
    outputOrder.verify(output).transactionStatus(anyLong());
    outputOrder.verify(output).errors(argThat(hasNoErrors()));
    outputOrder.verify(output).finish();
    verifyNoMoreInteractions(output);
}

Example 3 with QueryExecutionEngine

use of org.neo4j.kernel.impl.query.QueryExecutionEngine in project neo4j by neo4j.

the class TransactionHandleTest method shouldResumeTransactionWhenExecutingStatementsOnSecondRequest.

@Test
public void shouldResumeTransactionWhenExecutingStatementsOnSecondRequest() throws Exception {
    // given
    TransitionalPeriodTransactionMessContainer kernel = mockKernel();
    TransitionalTxManagementKernelTransaction transactionContext = kernel.newTransaction(explicit, AUTH_DISABLED, -1);
    TransactionRegistry registry = mock(TransactionRegistry.class);
    QueryExecutionEngine executionEngine = mock(QueryExecutionEngine.class);
    TransactionalContext transactionalContext = prepareKernelWithQuerySession(kernel);
    when(registry.begin(any(TransactionHandle.class))).thenReturn(1337L);
    TransactionHandle handle = getTransactionHandle(kernel, executionEngine, registry);
    ExecutionResultSerializer output = mock(ExecutionResultSerializer.class);
    handle.execute(statements(new Statement("query", map(), false, (ResultDataContent[]) null)), output, mock(HttpServletRequest.class));
    reset(transactionContext, registry, executionEngine, output);
    Result executionResult = mock(Result.class);
    when(executionEngine.executeQuery("query", map(), transactionalContext)).thenReturn(executionResult);
    // when
    handle.execute(statements(new Statement("query", map(), false, (ResultDataContent[]) null)), output, mock(HttpServletRequest.class));
    // then
    InOrder order = inOrder(transactionContext, registry, executionEngine);
    order.verify(transactionContext).resumeSinceTransactionsAreStillThreadBound();
    order.verify(executionEngine).executeQuery("query", map(), transactionalContext);
    order.verify(transactionContext).suspendSinceTransactionsAreStillThreadBound();
    order.verify(registry).release(1337L, handle);
    InOrder outputOrder = inOrder(output);
    outputOrder.verify(output).transactionCommitUri(uriScheme.txCommitUri(1337));
    outputOrder.verify(output).statementResult(executionResult, false, (ResultDataContent[]) null);
    outputOrder.verify(output).notifications(anyCollectionOf(Notification.class));
    outputOrder.verify(output).transactionStatus(anyLong());
    outputOrder.verify(output).errors(argThat(hasNoErrors()));
    outputOrder.verify(output).finish();
    verifyNoMoreInteractions(output);
}

Example 4 with QueryExecutionEngine

use of org.neo4j.kernel.impl.query.QueryExecutionEngine in project neo4j by neo4j.

the class TransactionHandleTest method shouldLogMessageIfCommitErrorOccurs.

@Test
public void shouldLogMessageIfCommitErrorOccurs() throws Exception {
    // given
    TransitionalPeriodTransactionMessContainer kernel = mockKernel();
    TransitionalTxManagementKernelTransaction transactionContext = kernel.newTransaction(explicit, AUTH_DISABLED, -1);
    doThrow(new NullPointerException()).when(transactionContext).commit();
    LogProvider logProvider = mock(LogProvider.class);
    Log log = mock(Log.class);
    when(logProvider.getLog(TransactionHandle.class)).thenReturn(log);
    TransactionRegistry registry = mock(TransactionRegistry.class);
    QueryExecutionEngine engine = mock(QueryExecutionEngine.class);
    Result executionResult = mock(Result.class);
    TransactionalContext transactionalContext = prepareKernelWithQuerySession(kernel);
    when(engine.executeQuery("query", map(), transactionalContext)).thenReturn(executionResult);
    when(registry.begin(any(TransactionHandle.class))).thenReturn(1337L);
    GraphDatabaseQueryService queryService = mock(GraphDatabaseQueryService.class);
    TransactionHandle handle = new TransactionHandle(kernel, engine, queryService, registry, uriScheme, false, AUTH_DISABLED, anyLong(), logProvider);
    ExecutionResultSerializer output = mock(ExecutionResultSerializer.class);
    // when
    Statement statement = new Statement("query", map(), false, (ResultDataContent[]) null);
    handle.commit(statements(statement), output, mock(HttpServletRequest.class));
    // then
    verify(log).error(eq("Failed to commit transaction."), any(NullPointerException.class));
    verify(registry).forget(1337L);
    InOrder outputOrder = inOrder(output);
    outputOrder.verify(output).statementResult(executionResult, false, (ResultDataContent[]) null);
    outputOrder.verify(output).notifications(anyCollectionOf(Notification.class));
    outputOrder.verify(output).errors(argThat(hasErrors(Status.Transaction.TransactionCommitFailed)));
    outputOrder.verify(output).finish();
    verifyNoMoreInteractions(output);
}

Example 5 with QueryExecutionEngine

use of org.neo4j.kernel.impl.query.QueryExecutionEngine in project neo4j by neo4j.

the class TransactionHandleTest method shouldLogMessageIfCypherSyntaxErrorOccurs.

@Test
public void shouldLogMessageIfCypherSyntaxErrorOccurs() throws Exception {
    // given
    TransitionalPeriodTransactionMessContainer kernel = mockKernel();
    QueryExecutionEngine executionEngine = mock(QueryExecutionEngine.class);
    TransactionalContext transactionalContext = prepareKernelWithQuerySession(kernel);
    when(executionEngine.executeQuery("matsch (n) return n", map(), transactionalContext)).thenThrow(new QueryExecutionKernelException(new SyntaxException("did you mean MATCH?")));
    TransactionRegistry registry = mock(TransactionRegistry.class);
    when(registry.begin(any(TransactionHandle.class))).thenReturn(1337L);
    GraphDatabaseQueryService queryService = mock(GraphDatabaseQueryService.class);
    TransactionHandle handle = new TransactionHandle(kernel, executionEngine, queryService, registry, uriScheme, false, AUTH_DISABLED, anyLong(), NullLogProvider.getInstance());
    ExecutionResultSerializer output = mock(ExecutionResultSerializer.class);
    // when
    Statement statement = new Statement("matsch (n) return n", map(), false, (ResultDataContent[]) null);
    handle.commit(statements(statement), output, mock(HttpServletRequest.class));
    // then
    verify(registry).forget(1337L);
    InOrder outputOrder = inOrder(output);
    outputOrder.verify(output).errors(argThat(hasErrors(Status.Statement.SyntaxError)));
    outputOrder.verify(output).finish();
    verifyNoMoreInteractions(output);
}