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KernelIntegrationTest.java
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KernelIntegrationTest.java
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/*
* Copyright (c) 2002-2018 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.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.integrationtest;
import org.junit.After;
import org.junit.Before;
import org.junit.Rule;
import org.junit.rules.RuleChain;
import org.neo4j.graphdb.GraphDatabaseService;
import org.neo4j.graphdb.factory.GraphDatabaseBuilder;
import org.neo4j.internal.kernel.api.security.LoginContext;
import org.neo4j.kernel.api.DataWriteOperations;
import org.neo4j.kernel.api.InwardKernel;
import org.neo4j.kernel.api.KernelTransaction;
import org.neo4j.kernel.api.ProcedureCallOperations;
import org.neo4j.kernel.api.ReadOperations;
import org.neo4j.kernel.api.SchemaWriteOperations;
import org.neo4j.kernel.api.Statement;
import org.neo4j.kernel.api.TokenWriteOperations;
import org.neo4j.kernel.api.dbms.DbmsOperations;
import org.neo4j.internal.kernel.api.exceptions.KernelException;
import org.neo4j.kernel.api.exceptions.TransactionFailureException;
import org.neo4j.kernel.api.security.AnonymousContext;
import org.neo4j.kernel.impl.api.index.IndexingService;
import org.neo4j.kernel.impl.core.ThreadToStatementContextBridge;
import org.neo4j.kernel.internal.GraphDatabaseAPI;
import org.neo4j.test.TestGraphDatabaseFactory;
import org.neo4j.test.rule.TestDirectory;
import org.neo4j.test.rule.fs.DefaultFileSystemRule;
import static org.neo4j.internal.kernel.api.security.LoginContext.AUTH_DISABLED;
public abstract class KernelIntegrationTest
{
protected final TestDirectory testDir = TestDirectory.testDirectory();
protected final DefaultFileSystemRule fileSystemRule = new DefaultFileSystemRule();
@Rule
public RuleChain ruleChain = RuleChain.outerRule( testDir ).around( fileSystemRule );
@SuppressWarnings( "deprecation" )
protected GraphDatabaseAPI db;
ThreadToStatementContextBridge statementContextSupplier;
protected InwardKernel kernel;
protected IndexingService indexingService;
private KernelTransaction transaction;
private Statement statement;
private DbmsOperations dbmsOperations;
protected Statement statementInNewTransaction( LoginContext loginContext ) throws KernelException
{
transaction = kernel.newTransaction( KernelTransaction.Type.implicit, loginContext );
statement = transaction.acquireStatement();
return statement;
}
protected TokenWriteOperations tokenWriteOperationsInNewTransaction() throws KernelException
{
transaction = kernel.newTransaction( KernelTransaction.Type.implicit, AnonymousContext.writeToken() );
statement = transaction.acquireStatement();
return statement.tokenWriteOperations();
}
protected DataWriteOperations dataWriteOperationsInNewTransaction() throws KernelException
{
transaction = kernel.newTransaction( KernelTransaction.Type.implicit, AnonymousContext.write() );
statement = transaction.acquireStatement();
return statement.dataWriteOperations();
}
protected SchemaWriteOperations schemaWriteOperationsInNewTransaction() throws KernelException
{
transaction = kernel.newTransaction( KernelTransaction.Type.implicit, AUTH_DISABLED );
statement = transaction.acquireStatement();
return statement.schemaWriteOperations();
}
protected ProcedureCallOperations procedureCallOpsInNewTx() throws TransactionFailureException
{
transaction = kernel.newTransaction( KernelTransaction.Type.implicit, AnonymousContext.read() );
statement = transaction.acquireStatement();
return statement.procedureCallOperations();
}
protected ReadOperations readOperationsInNewTransaction() throws TransactionFailureException
{
transaction = kernel.newTransaction( KernelTransaction.Type.implicit, AnonymousContext.read() );
statement = transaction.acquireStatement();
return statement.readOperations();
}
protected KernelTransaction newTransaction() throws TransactionFailureException
{
return kernel.newTransaction( KernelTransaction.Type.implicit, AnonymousContext.read() );
}
protected DbmsOperations dbmsOperations()
{
return dbmsOperations;
}
protected void commit() throws TransactionFailureException
{
statement.close();
statement = null;
transaction.success();
try
{
transaction.close();
}
finally
{
transaction = null;
}
}
protected void rollback() throws TransactionFailureException
{
statement.close();
statement = null;
transaction.failure();
try
{
transaction.close();
}
finally
{
transaction = null;
}
}
@Before
public void setup()
{
startDb();
}
@After
public void cleanup() throws Exception
{
stopDb();
}
protected void startDb()
{
db = (GraphDatabaseAPI) createGraphDatabase();
kernel = db.getDependencyResolver().resolveDependency( InwardKernel.class );
indexingService = db.getDependencyResolver().resolveDependency( IndexingService.class );
statementContextSupplier = db.getDependencyResolver().resolveDependency( ThreadToStatementContextBridge.class );
dbmsOperations = db.getDependencyResolver().resolveDependency( DbmsOperations.class );
}
protected GraphDatabaseService createGraphDatabase()
{
GraphDatabaseBuilder graphDatabaseBuilder = new TestGraphDatabaseFactory().setFileSystem( fileSystemRule.get() )
.newEmbeddedDatabaseBuilder( testDir.graphDbDir() );
return configure( graphDatabaseBuilder ).newGraphDatabase();
}
protected GraphDatabaseBuilder configure( GraphDatabaseBuilder graphDatabaseBuilder )
{
return graphDatabaseBuilder;
}
void dbWithNoCache() throws TransactionFailureException
{
stopDb();
startDb();
}
private void stopDb() throws TransactionFailureException
{
if ( transaction != null )
{
transaction.close();
}
db.shutdown();
}
protected void restartDb() throws TransactionFailureException
{
stopDb();
startDb();
}
}