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Util.java
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Util.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 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.causalclustering.routing;
import java.util.Collections;
import java.util.List;
import java.util.Optional;
import java.util.function.Function;
import org.neo4j.causalclustering.discovery.ClientConnector;
import org.neo4j.helpers.AdvertisedSocketAddress;
import static java.util.Collections.emptyList;
public class Util
{
private Util()
{
}
public static <T> List<T> asList( @SuppressWarnings( "OptionalUsedAsFieldOrParameterType" ) Optional<T> optional )
{
return optional.map( Collections::singletonList ).orElse( emptyList() );
}
public static Function<ClientConnector,AdvertisedSocketAddress> extractBoltAddress()
{
return c -> c.connectors().boltAddress();
}
}