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ClientConnectorAddresses.java
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ClientConnectorAddresses.java
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/*
* Copyright (c) 2002-2017 "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.discovery;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Objects;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.neo4j.helpers.AdvertisedSocketAddress;
import org.neo4j.kernel.configuration.BoltConnector;
import org.neo4j.kernel.configuration.Config;
import org.neo4j.kernel.configuration.HttpConnector.Encryption;
import static org.neo4j.causalclustering.discovery.ClientConnectorAddresses.Scheme.bolt;
import static org.neo4j.causalclustering.discovery.ClientConnectorAddresses.Scheme.http;
import static org.neo4j.causalclustering.discovery.ClientConnectorAddresses.Scheme.https;
public class ClientConnectorAddresses implements Iterable<ClientConnectorAddresses.ConnectorUri>
{
private final List<ConnectorUri> connectorUris;
public ClientConnectorAddresses( List<ConnectorUri> connectorUris )
{
this.connectorUris = connectorUris;
}
static ClientConnectorAddresses extractFromConfig( Config config )
{
List<ConnectorUri> connectorUris = new ArrayList<>();
List<BoltConnector> boltConnectors = config.enabledBoltConnectors();
if (boltConnectors.isEmpty()) {
throw new IllegalArgumentException( "A Bolt connector must be configured to run a cluster" );
}
boltConnectors
.forEach( c -> connectorUris.add( new ConnectorUri( bolt, config.get( c.advertised_address ) ) ) );
config.enabledHttpConnectors()
.forEach( c -> connectorUris.add( new ConnectorUri( Encryption.NONE.equals(c.encryptionLevel() ) ?
http : https, config.get( c.advertised_address ) ) ) );
return new ClientConnectorAddresses( connectorUris );
}
public AdvertisedSocketAddress boltAddress()
{
return connectorUris.stream().filter( connectorUri -> connectorUri.scheme == bolt ).findFirst().orElseThrow(
() -> new IllegalArgumentException( "A Bolt connector must be configured to run a cluster" ) )
.socketAddress;
}
public List<URI> uriList()
{
return connectorUris.stream().map( ConnectorUri::toUri ).collect( Collectors.toList() );
}
@Override
public boolean equals( Object o )
{
if ( this == o )
{
return true;
}
if ( o == null || getClass() != o.getClass() )
{
return false;
}
ClientConnectorAddresses that = (ClientConnectorAddresses) o;
return Objects.equals( connectorUris, that.connectorUris );
}
@Override
public int hashCode()
{
return Objects.hash( connectorUris );
}
@Override
public String toString()
{
return connectorUris.stream().map( ConnectorUri::toString ).collect( Collectors.joining( "," ) );
}
static ClientConnectorAddresses fromString( String value )
{
return new ClientConnectorAddresses( Stream.of( value.split( "," ) )
.map( ConnectorUri::fromString ).collect( Collectors.toList() ) );
}
@Override
public Iterator<ConnectorUri> iterator()
{
return connectorUris.iterator();
}
public enum Scheme
{
bolt, http, https
}
public static class ConnectorUri
{
private final Scheme scheme;
private final AdvertisedSocketAddress socketAddress;
public ConnectorUri( Scheme scheme, AdvertisedSocketAddress socketAddress )
{
this.scheme = scheme;
this.socketAddress = socketAddress;
}
private URI toUri()
{
try
{
return new URI( scheme.name().toLowerCase(), null, socketAddress.getHostname(), socketAddress.getPort(),
null, null, null );
}
catch ( URISyntaxException e )
{
throw new IllegalArgumentException( e );
}
}
@Override
public String toString()
{
return toUri().toString();
}
private static ConnectorUri fromString( String string )
{
URI uri = URI.create( string );
return new ConnectorUri( Scheme.valueOf( uri.getScheme() ),
new AdvertisedSocketAddress( uri.getHost(), uri.getPort() ) );
}
@Override
public boolean equals( Object o )
{
if ( this == o )
{
return true;
}
if ( o == null || getClass() != o.getClass() )
{
return false;
}
ConnectorUri that = (ConnectorUri) o;
return scheme == that.scheme &&
Objects.equals( socketAddress, that.socketAddress );
}
@Override
public int hashCode()
{
return Objects.hash( scheme, socketAddress );
}
}
}