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AccessExplicitIndexReadOnlyIT.java
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AccessExplicitIndexReadOnlyIT.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.index;
import org.junit.Rule;
import org.junit.Test;
import org.neo4j.graphdb.Node;
import org.neo4j.graphdb.Relationship;
import org.neo4j.graphdb.Transaction;
import org.neo4j.graphdb.factory.GraphDatabaseSettings;
import org.neo4j.graphdb.index.Index;
import org.neo4j.graphdb.security.WriteOperationsNotAllowedException;
import org.neo4j.kernel.impl.MyRelTypes;
import org.neo4j.test.rule.DatabaseRule;
import org.neo4j.test.rule.EmbeddedDatabaseRule;
import static java.lang.Boolean.TRUE;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.fail;
public class AccessExplicitIndexReadOnlyIT
{
@Rule
public final DatabaseRule db = new EmbeddedDatabaseRule().startLazily();
@Test
public void shouldListAndReadExplicitIndexesForReadOnlyDb() throws Exception
{
// given a db with some nodes and populated explicit indexes
db.ensureStarted();
String key = "key";
try ( Transaction tx = db.beginTx() )
{
Index<Node> nodeIndex = db.index().forNodes( "NODE" );
Index<Relationship> relationshipIndex = db.index().forRelationships( "RELATIONSHIP" );
for ( int i = 0; i < 10; i++ )
{
Node node = db.createNode();
Relationship relationship = node.createRelationshipTo( node, MyRelTypes.TEST );
nodeIndex.add( node, key, String.valueOf( i ) );
relationshipIndex.add( relationship, key, String.valueOf( i ) );
}
tx.success();
}
// when restarted as read-only
db.restartDatabase( GraphDatabaseSettings.read_only.name(), TRUE.toString() );
try ( Transaction tx = db.beginTx() )
{
Index<Node> nodeIndex = db.index().forNodes( db.index().nodeIndexNames()[0] );
Index<Relationship> relationshipIndex = db.index().forRelationships( db.index().relationshipIndexNames()[0] );
// then try and read the indexes
for ( int i = 0; i < 10; i++ )
{
assertNotNull( nodeIndex.get( key, String.valueOf( i ) ).getSingle() );
assertNotNull( relationshipIndex.get( key, String.valueOf( i ) ).getSingle() );
}
tx.success();
}
}
@Test
public void shouldNotCreateIndexesForReadOnlyDb()
{
// given
db.withSetting( GraphDatabaseSettings.read_only, TRUE.toString() );
// when
try ( Transaction tx = db.beginTx() )
{
db.index().forNodes( "NODE" );
fail( "Should've failed" );
}
catch ( WriteOperationsNotAllowedException e )
{
// then good
}
try ( Transaction tx = db.beginTx() )
{
db.index().forRelationships( "RELATIONSHIP" );
fail( "Should've failed" );
}
catch ( WriteOperationsNotAllowedException e )
{
// then good
}
}
}