| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.ignite.internal.visor; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.UUID; |
| import org.apache.ignite.cluster.ClusterNode; |
| |
| /** |
| * Base class for Visor tasks intended to execute job on coordinator node. |
| */ |
| public abstract class VisorCoordinatorNodeTask<A, R> extends VisorOneNodeTask<A, R> { |
| /** {@inheritDoc} */ |
| @Override protected Collection<UUID> jobNodes(VisorTaskArgument<A> arg) { |
| ClusterNode crd = ignite.context().discovery().discoCache().oldestAliveServerNode(); |
| |
| Collection<UUID> nids = new ArrayList<>(1); |
| |
| nids.add(crd == null ? ignite.localNode().id() : crd.id()); |
| |
| return nids; |
| } |
| } |