| /** |
| * 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.hadoop.yarn.server.resourcemanager.blacklist; |
| |
| import java.util.ArrayList; |
| |
| import org.apache.hadoop.yarn.api.records.ResourceBlacklistRequest; |
| |
| /** |
| * A {@link BlacklistManager} that returns no blacklists. |
| */ |
| public class DisabledBlacklistManager implements BlacklistManager { |
| |
| private static final ArrayList<String> EMPTY_LIST = new ArrayList<String>(); |
| private ResourceBlacklistRequest noBlacklist = |
| ResourceBlacklistRequest.newInstance(EMPTY_LIST, EMPTY_LIST); |
| |
| @Override |
| public void addNode(String node) { |
| } |
| |
| @Override |
| public ResourceBlacklistRequest getBlacklistUpdates() { |
| return noBlacklist; |
| } |
| |
| @Override |
| public void refreshNodeHostCount(int nodeHostCount) { |
| // Do nothing |
| } |
| } |