hadoop EntityIdentifier 源码
haddop EntityIdentifier 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice/src/main/java/org/apache/hadoop/yarn/server/timeline/EntityIdentifier.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.server.timeline;
import org.apache.hadoop.classification.InterfaceAudience.Private;
import org.apache.hadoop.classification.InterfaceStability.Unstable;
/**
* The unique identifier for an entity
*/
@Private
@Unstable
public class EntityIdentifier implements Comparable<EntityIdentifier> {
private String id;
private String type;
public EntityIdentifier(String id, String type) {
this.id = id;
this.type = type;
}
/**
* Get the entity Id.
* @return The entity Id.
*/
public String getId() {
return id;
}
/**
* Get the entity type.
* @return The entity type.
*/
public String getType() {
return type;
}
@Override
public int compareTo(EntityIdentifier other) {
int c = type.compareTo(other.type);
if (c != 0) return c;
return id.compareTo(other.id);
}
@Override
public int hashCode() {
// generated by eclipse
final int prime = 31;
int result = 1;
result = prime * result + ((id == null) ? 0 : id.hashCode());
result = prime * result + ((type == null) ? 0 : type.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
// generated by eclipse
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
EntityIdentifier other = (EntityIdentifier) obj;
if (id == null) {
if (other.id != null)
return false;
} else if (!id.equals(other.id))
return false;
if (type == null) {
if (other.type != null)
return false;
} else if (!type.equals(other.type))
return false;
return true;
}
@Override
public String toString() {
return "{ id: " + id + ", type: "+ type + " }";
}
}
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