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72 changes: 72 additions & 0 deletions
72
...-clustering/src/main/java/org/neo4j/causalclustering/discovery/DnsResolutionResolver.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| /* | ||
| * 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.InetAddress; | ||
| import java.net.UnknownHostException; | ||
| import java.util.Collection; | ||
| import java.util.HashSet; | ||
| import java.util.Set; | ||
|
|
||
| import org.neo4j.helpers.AdvertisedSocketAddress; | ||
| import org.neo4j.logging.Log; | ||
| import org.neo4j.logging.LogProvider; | ||
|
|
||
| import static java.lang.String.format; | ||
|
|
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| public class DnsResolutionResolver implements ResolutionResolver | ||
| { | ||
| private final Log userLog; | ||
| private final Log log; | ||
| private final DomainNameResolver domainNameResolver; | ||
|
|
||
| public DnsResolutionResolver( LogProvider logProvider, LogProvider userLogProvider, | ||
| DomainNameResolver domainNameResolver ) | ||
| { | ||
| log = logProvider.getLog( getClass() ); | ||
| userLog = userLogProvider.getLog( getClass() ); | ||
| this.domainNameResolver = domainNameResolver; | ||
| } | ||
|
|
||
| @Override | ||
| public Collection<AdvertisedSocketAddress> resolve( AdvertisedSocketAddress initialAddress ) | ||
| { | ||
| Set<AdvertisedSocketAddress> addresses = new HashSet<>(); | ||
| try | ||
| { | ||
| InetAddress[] ipAddresses = domainNameResolver.resolveDomainName( initialAddress.getHostname() ); | ||
|
|
||
| for ( InetAddress ipAddress : ipAddresses ) | ||
| { | ||
| addresses.add( new AdvertisedSocketAddress( ipAddress.getHostAddress(), initialAddress.getPort() ) ); | ||
| } | ||
|
|
||
| userLog.info( "Resolved initial host '%s' to %s", initialAddress, addresses ); | ||
| return addresses; | ||
| } | ||
| catch ( UnknownHostException e ) | ||
| { | ||
| log.error( format( "Failed to resolve host `%s` to IPs due to error: %s", initialAddress, e.getMessage() ), e ); | ||
|
|
||
| addresses.add( initialAddress ); | ||
| return addresses; | ||
| } | ||
| } | ||
| } |
28 changes: 28 additions & 0 deletions
28
...sal-clustering/src/main/java/org/neo4j/causalclustering/discovery/DomainNameResolver.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| /* | ||
| * 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.InetAddress; | ||
| import java.net.UnknownHostException; | ||
|
|
||
| public interface DomainNameResolver | ||
| { | ||
| InetAddress[] resolveDomainName(String hostname) throws UnknownHostException; | ||
| } |
31 changes: 31 additions & 0 deletions
31
...clustering/src/main/java/org/neo4j/causalclustering/discovery/DomainNameResolverImpl.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,31 @@ | ||
| /* | ||
| * 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.InetAddress; | ||
| import java.net.UnknownHostException; | ||
|
|
||
| public class DomainNameResolverImpl implements DomainNameResolver | ||
| { | ||
| public InetAddress[] resolveDomainName(String hostname) throws UnknownHostException | ||
| { | ||
| return InetAddress.getAllByName( hostname ); | ||
| } | ||
| } |
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