org.apache.hadoop.hdfs.server.namenode.startupprogress.PhaseTracking Maven / Gradle / Ivy
/**
* 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.hdfs.server.namenode.startupprogress;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import org.apache.hadoop.classification.InterfaceAudience;
/**
* Internal data structure used to track progress of a {@link Phase}.
*/
@InterfaceAudience.Private
final class PhaseTracking extends AbstractTracking {
String file;
long size = Long.MIN_VALUE;
final ConcurrentMap steps =
new ConcurrentHashMap();
@Override
public PhaseTracking clone() {
PhaseTracking clone = new PhaseTracking();
super.copy(clone);
clone.file = file;
clone.size = size;
for (Map.Entry entry: steps.entrySet()) {
clone.steps.put(entry.getKey(), entry.getValue().clone());
}
return clone;
}
}