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HalfCreatedConstraintIT.java
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HalfCreatedConstraintIT.java
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/*
* Copyright (c) 2002-2018 "Neo4j,"
* Neo4j Sweden AB [http://neo4j.com]
*
* This file is part of Neo4j Enterprise Edition. The included source
* code can be redistributed and/or modified under the terms of the
* GNU AFFERO GENERAL PUBLIC LICENSE Version 3
* (http://www.fsf.org/licensing/licenses/agpl-3.0.html) with the
* Commons Clause, as found in the associated LICENSE.txt file.
*
* 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 Affero General Public License for more details.
*
* Neo4j object code can be licensed independently from the source
* under separate terms from the AGPL. Inquiries can be directed to:
* licensing@neo4j.com
*
* More information is also available at:
* https://neo4j.com/licensing/
*/
package org.neo4j.consistency;
import org.junit.Rule;
import org.junit.Test;
import java.io.File;
import java.io.IOException;
import java.io.PrintStream;
import java.nio.file.Files;
import java.util.concurrent.TimeUnit;
import org.neo4j.graphdb.GraphDatabaseService;
import org.neo4j.graphdb.Label;
import org.neo4j.graphdb.Node;
import org.neo4j.graphdb.Transaction;
import org.neo4j.graphdb.factory.EnterpriseGraphDatabaseFactory;
import org.neo4j.kernel.api.KernelTransaction;
import org.neo4j.kernel.api.schema.LabelSchemaDescriptor;
import org.neo4j.kernel.api.schema.SchemaDescriptorFactory;
import org.neo4j.kernel.api.schema.index.IndexDescriptor;
import org.neo4j.kernel.api.schema.index.IndexDescriptorFactory;
import org.neo4j.kernel.impl.api.KernelTransactionImplementation;
import org.neo4j.kernel.impl.core.ThreadToStatementContextBridge;
import org.neo4j.kernel.internal.GraphDatabaseAPI;
import org.neo4j.test.rule.TestDirectory;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
public class HalfCreatedConstraintIT
{
@Rule
public final TestDirectory testDirectory = TestDirectory.testDirectory();
@Test
public void uniqueIndexWithoutOwningConstraintIsIgnoredDuringCheck() throws ConsistencyCheckTool.ToolFailureException, IOException
{
File storeDir = testDirectory.graphDbDir();
Label marker = Label.label( "MARKER" );
String property = "property";
GraphDatabaseService database = new EnterpriseGraphDatabaseFactory().newEmbeddedDatabase( storeDir );
try
{
createNodes( marker, property, database );
addIndex( database );
waitForIndexPopulationFailure( database );
}
finally
{
database.shutdown();
}
ConsistencyCheckService.Result checkResult =
ConsistencyCheckTool.runConsistencyCheckTool( new String[]{storeDir.getAbsolutePath()}, emptyPrintStream(), emptyPrintStream() );
assertTrue( String.join( System.lineSeparator(), Files.readAllLines( checkResult.reportFile().toPath() ) ), checkResult.isSuccessful() );
}
private void waitForIndexPopulationFailure( GraphDatabaseService database )
{
try ( Transaction ignored = database.beginTx() )
{
database.schema().awaitIndexesOnline( 10, TimeUnit.MINUTES );
fail( "Unique index population should fail." );
}
catch ( IllegalStateException e )
{
assertEquals( "Index entered a FAILED state. Please see database logs.", e.getMessage() );
}
}
private void addIndex( GraphDatabaseService database )
{
try ( Transaction transaction = database.beginTx() )
{
ThreadToStatementContextBridge statementBridge =
((GraphDatabaseAPI) database).getDependencyResolver().provideDependency( ThreadToStatementContextBridge.class ).get();
KernelTransaction kernelTransaction = statementBridge.getKernelTransactionBoundToThisThread( true );
LabelSchemaDescriptor descriptor = SchemaDescriptorFactory.forLabel( 0, 0 );
IndexDescriptor index = IndexDescriptorFactory.uniqueForSchema( descriptor );
((KernelTransactionImplementation) kernelTransaction).txState().indexDoAdd( index );
transaction.success();
}
}
private void createNodes( Label marker, String property, GraphDatabaseService database )
{
try ( Transaction transaction = database.beginTx() )
{
for ( int i = 0; i < 10; i++ )
{
Node node = database.createNode( marker );
node.setProperty( property, "a" );
}
transaction.success();
}
}
private static PrintStream emptyPrintStream()
{
return new PrintStream( org.neo4j.io.NullOutputStream.NULL_OUTPUT_STREAM );
}
}