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ConvertNonCoreEdgeStoreIT.java
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ConvertNonCoreEdgeStoreIT.java
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/*
* Copyright (c) 2002-2016 "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 Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.coreedge.scenarios;
import java.io.File;
import java.util.Arrays;
import java.util.Collection;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.neo4j.coreedge.discovery.Cluster;
import org.neo4j.coreedge.discovery.CoreServer;
import org.neo4j.coreedge.server.core.CoreGraphDatabase;
import org.neo4j.function.ThrowingSupplier;
import org.neo4j.graphdb.GraphDatabaseService;
import org.neo4j.graphdb.Label;
import org.neo4j.graphdb.Node;
import org.neo4j.graphdb.RelationshipType;
import org.neo4j.graphdb.Transaction;
import org.neo4j.graphdb.factory.GraphDatabaseFactory;
import org.neo4j.graphdb.factory.GraphDatabaseSettings;
import org.neo4j.kernel.configuration.Config;
import org.neo4j.kernel.impl.store.format.highlimit.HighLimit;
import org.neo4j.kernel.impl.store.format.standard.StandardV3_0;
import org.neo4j.restore.RestoreClusterCliTest;
import org.neo4j.restore.RestoreClusterUtils;
import org.neo4j.restore.RestoreExistingClusterCli;
import org.neo4j.restore.RestoreNewClusterCli;
import org.neo4j.test.coreedge.ClusterRule;
import static java.util.concurrent.TimeUnit.SECONDS;
import static org.hamcrest.Matchers.greaterThan;
import static org.junit.Assert.assertEquals;
import static org.neo4j.coreedge.server.CoreEdgeClusterSettings.raft_advertised_address;
import static org.neo4j.graphdb.Label.label;
import static org.neo4j.helpers.collection.Iterables.count;
import static org.neo4j.restore.ArgsBuilder.args;
import static org.neo4j.restore.ArgsBuilder.toArray;
import static org.neo4j.test.assertion.Assert.assertEventually;
@RunWith(Parameterized.class)
public class ConvertNonCoreEdgeStoreIT
{
private static final int CLUSTER_SIZE = 3;
@Rule
public final ClusterRule clusterRule = new ClusterRule( getClass() )
.withNumberOfCoreServers( CLUSTER_SIZE )
.withNumberOfEdgeServers( 0 );
@Parameterized.Parameter()
public String recordFormat;
@Parameterized.Parameters(name = "Record format {0}")
public static Collection<Object> data()
{
return Arrays.asList( new Object[]{
StandardV3_0.NAME, HighLimit.NAME
} );
}
@Test
public void shouldReplicateTransactionToCoreServers() throws Throwable
{
// given
File dbDir = clusterRule.testDirectory().cleanDirectory( "classic-db" );
File classicNeo4jStore = createClassicNeo4jStore( dbDir, 10, recordFormat );
Cluster cluster = this.clusterRule.withRecordFormat( recordFormat ).createCluster();
File homeDir = cluster.getCoreServerById( 0 ).homeDir();
String output = RestoreClusterUtils.execute( () -> RestoreNewClusterCli.main( toArray( args()
.homeDir( homeDir ).config( homeDir ).from( classicNeo4jStore )
.database( "graph.db" ).force().build() ) ) );
String seed = RestoreClusterCliTest.extractSeed( output );
for ( int serverId = 1; serverId < CLUSTER_SIZE; serverId++ )
{
File destination = cluster.getCoreServerById( serverId ).homeDir();
RestoreClusterUtils.execute( () -> RestoreExistingClusterCli.main( toArray( args().homeDir( destination )
.config( destination ).from( classicNeo4jStore ).database( "graph.db" ).seed( seed ).force().build() ) ) );
}
cluster.start();
// when
CoreGraphDatabase coreDB = cluster.awaitLeader( 5000 ).database();
try ( Transaction tx = coreDB.beginTx() )
{
Node node = coreDB.createNode( label( "boo" ) );
node.setProperty( "foobar", "baz_bat" );
tx.success();
}
cluster.addEdgeServerWithIdAndRecordFormat( 4, recordFormat ).start();
// then
for ( final CoreServer server : cluster.coreServers() )
{
CoreGraphDatabase db = server.database();
try ( Transaction tx = db.beginTx() )
{
ThrowingSupplier<Long, Exception> nodeCount = () -> count( db.getAllNodes() );
Config config = db.getDependencyResolver().resolveDependency( Config.class );
assertEventually( "node to appear on core server " + config.get( raft_advertised_address ), nodeCount,
greaterThan( 0L ), 15, SECONDS );
assertEquals( 11, count( db.getAllNodes() ) );
tx.success();
}
}
}
private File createClassicNeo4jStore( File base, int nodesToCreate, String recordFormat )
{
File existingDbDir = new File( base, "existing" );
GraphDatabaseService db = new GraphDatabaseFactory()
.newEmbeddedDatabaseBuilder( existingDbDir )
.setConfig( GraphDatabaseSettings.record_format, recordFormat )
.newGraphDatabase();
for ( int i = 0; i < (nodesToCreate / 2); i++ )
{
try ( Transaction tx = db.beginTx() )
{
Node node1 = db.createNode( Label.label( "Label-" + i ) );
Node node2 = db.createNode( Label.label( "Label-" + i ) );
node1.createRelationshipTo( node2, RelationshipType.withName( "REL-" + i ) );
tx.success();
}
}
db.shutdown();
return existingDbDir;
}
}