hadoop RMNodeAttribute 源码
haddop RMNodeAttribute 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/nodelabels/RMNodeAttribute.java
/**
* 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.nodelabels;
import java.util.HashMap;
import java.util.Map;
import org.apache.hadoop.yarn.api.records.NodeAttribute;
import org.apache.hadoop.yarn.api.records.NodeAttributeType;
import org.apache.hadoop.yarn.api.records.Resource;
/**
* Reference of NodeAttribute in RM.
*/
public class RMNodeAttribute extends AbstractLabel {
private NodeAttribute attribute;
// TODO need to revisit whether we need to make this concurrent implementation
private Map<String, AttributeValue> nodes = new HashMap<>();
public RMNodeAttribute(NodeAttribute attribute) {
this(attribute.getAttributeKey().getAttributeName(),
Resource.newInstance(0, 0), 0, attribute);
}
public RMNodeAttribute(String labelName, Resource res, int activeNMs,
NodeAttribute attribute) {
super(labelName, res, activeNMs);
this.attribute = attribute;
}
public NodeAttribute getAttribute() {
return attribute;
}
public void setAttribute(NodeAttribute attribute) {
this.attribute = attribute;
}
public NodeAttributeType getAttributeType() {
return attribute.getAttributeType();
}
public void addNode(String node, AttributeValue attributeValue) {
nodes.put(node, attributeValue);
}
public void removeNode(String node) {
nodes.remove(node);
}
public Map<String, AttributeValue> getAssociatedNodeIds() {
return new HashMap<String, AttributeValue>(nodes);
}
@Override
public int hashCode() {
return attribute.hashCode();
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
RMNodeAttribute other = (RMNodeAttribute) obj;
if (attribute == null) {
if (other.attribute != null) {
return false;
}
} else if (!attribute.equals(other.attribute)) {
return false;
}
return true;
}
}
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