hadoop WindowsGetSpaceUsed 源码
haddop WindowsGetSpaceUsed 代码
文件路径：/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/WindowsGetSpaceUsed.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
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* 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.fs;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import java.io.IOException;
/**
* Class to tell the size of a path on windows.
* Rather than shelling out, on windows this uses DUHelper.getFolderUsage
*/
@InterfaceAudience.LimitedPrivate({"HDFS", "MapReduce"})
@InterfaceStability.Evolving
public class WindowsGetSpaceUsed extends CachingGetSpaceUsed {
public WindowsGetSpaceUsed(CachingGetSpaceUsed.Builder builder)
throws IOException {
super(builder.getPath(),
builder.getInterval(),
builder.getJitter(),
builder.getInitialUsed());
}
/**
* Override to hook in DUHelper class.
*/
@Override
protected void refresh() {
used.set(DUHelper.getFolderUsage(getDirPath()));
}
}
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