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KernelTransactionTestBase.java
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KernelTransactionTestBase.java
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/*
* Copyright (c) 2002-2018 "Neo4j,"
* Neo4j Sweden AB [http://neo4j.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.kernel.impl.api;
import org.eclipse.collections.api.map.primitive.MutableLongObjectMap;
import org.eclipse.collections.api.set.primitive.MutableLongSet;
import org.eclipse.collections.impl.map.mutable.primitive.LongObjectHashMap;
import org.junit.Before;
import org.mockito.Mockito;
import java.util.Collection;
import java.util.concurrent.atomic.AtomicReference;
import java.util.function.Supplier;
import org.neo4j.collection.pool.Pool;
import org.neo4j.dbms.database.DatabaseManager;
import org.neo4j.graphdb.factory.GraphDatabaseSettings;
import org.neo4j.internal.kernel.api.Transaction.Type;
import org.neo4j.internal.kernel.api.security.LoginContext;
import org.neo4j.internal.kernel.api.security.SecurityContext;
import org.neo4j.io.pagecache.tracing.cursor.PageCursorTracerSupplier;
import org.neo4j.io.pagecache.tracing.cursor.context.EmptyVersionContextSupplier;
import org.neo4j.kernel.api.explicitindex.AutoIndexing;
import org.neo4j.kernel.api.txstate.ExplicitIndexTransactionState;
import org.neo4j.kernel.availability.AvailabilityGuard;
import org.neo4j.kernel.availability.DatabaseAvailabilityGuard;
import org.neo4j.kernel.configuration.Config;
import org.neo4j.kernel.impl.api.index.IndexingService;
import org.neo4j.kernel.impl.constraints.StandardConstraintSemantics;
import org.neo4j.kernel.impl.factory.CanWrite;
import org.neo4j.kernel.impl.index.ExplicitIndexStore;
import org.neo4j.kernel.impl.locking.Locks;
import org.neo4j.kernel.impl.locking.NoOpClient;
import org.neo4j.kernel.impl.locking.SimpleStatementLocks;
import org.neo4j.kernel.impl.locking.StatementLocks;
import org.neo4j.kernel.impl.store.MetaDataStore;
import org.neo4j.kernel.impl.store.NeoStores;
import org.neo4j.kernel.impl.transaction.TransactionHeaderInformationFactory;
import org.neo4j.kernel.impl.transaction.TransactionMonitor;
import org.neo4j.kernel.impl.transaction.TransactionRepresentation;
import org.neo4j.kernel.impl.transaction.command.Command;
import org.neo4j.kernel.impl.transaction.log.TransactionIdStore;
import org.neo4j.kernel.impl.transaction.tracing.CommitEvent;
import org.neo4j.kernel.impl.transaction.tracing.TransactionTracer;
import org.neo4j.kernel.impl.util.Dependencies;
import org.neo4j.kernel.impl.util.collection.CollectionsFactory;
import org.neo4j.kernel.impl.util.collection.OnHeapCollectionsFactory;
import org.neo4j.kernel.impl.util.diffsets.MutableLongDiffSetsImpl;
import org.neo4j.memory.MemoryTracker;
import org.neo4j.resources.CpuClock;
import org.neo4j.resources.HeapAllocation;
import org.neo4j.storageengine.api.StorageCommand;
import org.neo4j.storageengine.api.StorageEngine;
import org.neo4j.storageengine.api.StorageReader;
import org.neo4j.storageengine.api.TransactionApplicationMode;
import org.neo4j.storageengine.api.lock.LockTracer;
import org.neo4j.storageengine.api.lock.ResourceLocker;
import org.neo4j.storageengine.api.txstate.ReadableTransactionState;
import org.neo4j.storageengine.api.txstate.TxStateVisitor;
import org.neo4j.time.Clocks;
import org.neo4j.time.FakeClock;
import org.neo4j.values.storable.Value;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.anyCollection;
import static org.mockito.ArgumentMatchers.anyLong;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import static org.neo4j.internal.kernel.api.security.LoginContext.AUTH_DISABLED;
import static org.neo4j.kernel.impl.transaction.log.TransactionIdStore.BASE_TX_COMMIT_TIMESTAMP;
import static org.neo4j.test.MockedNeoStores.mockedTokenHolders;
public class KernelTransactionTestBase
{
protected final StorageEngine storageEngine = mock( StorageEngine.class );
protected final NeoStores neoStores = mock( NeoStores.class );
protected final MetaDataStore metaDataStore = mock( MetaDataStore.class );
protected final StorageReader readLayer = mock( StorageReader.class );
protected final TransactionHooks hooks = new TransactionHooks();
protected final ExplicitIndexTransactionState explicitIndexState = mock( ExplicitIndexTransactionState.class );
protected final Supplier<ExplicitIndexTransactionState> explicitIndexStateSupplier = () -> explicitIndexState;
protected final TransactionMonitor transactionMonitor = mock( TransactionMonitor.class );
protected final CapturingCommitProcess commitProcess = new CapturingCommitProcess();
protected final TransactionHeaderInformation headerInformation = mock( TransactionHeaderInformation.class );
protected final TransactionHeaderInformationFactory headerInformationFactory = mock( TransactionHeaderInformationFactory.class );
protected final SchemaWriteGuard schemaWriteGuard = mock( SchemaWriteGuard.class );
protected final AvailabilityGuard availabilityGuard = mock( DatabaseAvailabilityGuard.class );
protected final FakeClock clock = Clocks.fakeClock();
protected final Pool<KernelTransactionImplementation> txPool = mock( Pool.class );
protected final StatementOperationParts statementOperations = mock( StatementOperationParts.class );
protected CollectionsFactory collectionsFactory;
private final long defaultTransactionTimeoutMillis = Config.defaults().get( GraphDatabaseSettings.transaction_timeout ).toMillis();
@Before
public void before() throws Exception
{
collectionsFactory = Mockito.spy( new TestCollectionsFactory() );
when( headerInformation.getAdditionalHeader() ).thenReturn( new byte[0] );
when( headerInformationFactory.create() ).thenReturn( headerInformation );
when( neoStores.getMetaDataStore() ).thenReturn( metaDataStore );
when( storageEngine.newReader() ).thenReturn( readLayer );
doAnswer( invocation -> ((Collection<StorageCommand>) invocation.getArgument(0) ).add( new Command
.RelationshipCountsCommand( 1, 2,3, 4L ) ) )
.when( storageEngine ).createCommands(
anyCollection(),
any( ReadableTransactionState.class ),
any( StorageReader.class ), any( ResourceLocker.class ),
anyLong(),
any( TxStateVisitor.Decorator.class ) );
}
public KernelTransactionImplementation newTransaction( long transactionTimeoutMillis )
{
return newTransaction( 0, AUTH_DISABLED, transactionTimeoutMillis );
}
public KernelTransactionImplementation newTransaction( LoginContext loginContext )
{
return newTransaction( 0, loginContext );
}
public KernelTransactionImplementation newTransaction( LoginContext loginContext, Locks.Client locks )
{
return newTransaction( 0, loginContext, locks, defaultTransactionTimeoutMillis );
}
public KernelTransactionImplementation newTransaction( long lastTransactionIdWhenStarted, LoginContext loginContext )
{
return newTransaction( lastTransactionIdWhenStarted, loginContext, defaultTransactionTimeoutMillis );
}
public KernelTransactionImplementation newTransaction( long lastTransactionIdWhenStarted, LoginContext loginContext,
long transactionTimeoutMillis )
{
return newTransaction( lastTransactionIdWhenStarted, loginContext, new NoOpClient(), transactionTimeoutMillis );
}
public KernelTransactionImplementation newTransaction( long lastTransactionIdWhenStarted, LoginContext loginContext,
Locks.Client locks, long transactionTimeout )
{
KernelTransactionImplementation tx = newNotInitializedTransaction();
StatementLocks statementLocks = new SimpleStatementLocks( locks );
SecurityContext securityContext = loginContext.authorize( s -> -1, DatabaseManager.DEFAULT_DATABASE_NAME );
tx.initialize( lastTransactionIdWhenStarted, BASE_TX_COMMIT_TIMESTAMP,statementLocks, Type.implicit,
securityContext, transactionTimeout, 1L );
return tx;
}
public KernelTransactionImplementation newNotInitializedTransaction()
{
return new KernelTransactionImplementation( statementOperations, schemaWriteGuard, hooks, null, null, headerInformationFactory, commitProcess,
transactionMonitor, explicitIndexStateSupplier, txPool, clock, new AtomicReference<>( CpuClock.NOT_AVAILABLE ),
new AtomicReference<>( HeapAllocation.NOT_AVAILABLE ), TransactionTracer.NULL, LockTracer.NONE, PageCursorTracerSupplier.NULL, storageEngine,
new CanWrite(), AutoIndexing.UNSUPPORTED,
mock( ExplicitIndexStore.class ), EmptyVersionContextSupplier.EMPTY, () -> collectionsFactory,
new StandardConstraintSemantics(), mock( SchemaState.class),
mock( IndexingService.class ), mockedTokenHolders(), new Dependencies() );
}
public class CapturingCommitProcess implements TransactionCommitProcess
{
private long txId = TransactionIdStore.BASE_TX_ID;
public TransactionRepresentation transaction;
@Override
public long commit( TransactionToApply batch, CommitEvent commitEvent,
TransactionApplicationMode mode )
{
assert transaction == null : "Designed to only allow one transaction";
assert batch.next() == null : "Designed to only allow one transaction";
transaction = batch.transactionRepresentation();
return ++txId;
}
}
private class TestCollectionsFactory implements CollectionsFactory
{
@Override
public MutableLongSet newLongSet()
{
return OnHeapCollectionsFactory.INSTANCE.newLongSet();
}
@Override
public MutableLongDiffSetsImpl newLongDiffSets()
{
return OnHeapCollectionsFactory.INSTANCE.newLongDiffSets();
}
@Override
public MutableLongObjectMap<Value> newValuesMap()
{
return new LongObjectHashMap<>();
}
@Override
public MemoryTracker getMemoryTracker()
{
return OnHeapCollectionsFactory.INSTANCE.getMemoryTracker();
}
@Override
public void release()
{
// nop
}
}
}