| /** |
| * 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.scheduler.placement; |
| |
| import com.google.common.collect.ImmutableMap; |
| import org.apache.hadoop.yarn.api.records.NodeId; |
| import org.apache.hadoop.yarn.api.records.NodeLabel; |
| import org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerNode; |
| import org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.fica.FiCaSchedulerNode; |
| |
| import java.util.Collections; |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| /** |
| * A simple PlacementSet which keeps an unordered map |
| */ |
| public class SimplePlacementSet<N extends SchedulerNode> |
| implements PlacementSet<N> { |
| |
| private Map<NodeId, N> map; |
| private String partition; |
| |
| public SimplePlacementSet(N node) { |
| if (null != node) { |
| // Only one node in the initial PlacementSet |
| this.map = ImmutableMap.of(node.getNodeID(), node); |
| this.partition = node.getPartition(); |
| } else { |
| this.map = Collections.emptyMap(); |
| this.partition = NodeLabel.DEFAULT_NODE_LABEL_PARTITION; |
| } |
| } |
| |
| public SimplePlacementSet(Map<NodeId, N> map, String partition) { |
| this.map = map; |
| this.partition = partition; |
| } |
| |
| @Override |
| public Map<NodeId, N> getAllNodes() { |
| return map; |
| } |
| |
| @Override |
| public long getVersion() { |
| return 0L; |
| } |
| |
| @Override |
| public String getPartition() { |
| return partition; |
| } |
| } |