hadoop PartialListing 源码
haddop PartialListing 代码
文件路径：/hadoop-cloud-storage-project/hadoop-cos/src/main/java/org/apache/hadoop/fs/cosn/PartialListing.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.cosn;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
/**
* <p>
* Holds information on a directory listing for a
* {@link NativeFileSystemStore}.
* This includes the {@link FileMetadata files} and directories
* (their names) contained in a directory.
* </p>
* <p>
* This listing may be returned in chunks, so a <code>priorLastKey</code>
* is provided so that the next chunk may be requested.
* </p>
*
* @see NativeFileSystemStore#list(String, int, String, boolean)
*/
@InterfaceAudience.Private
@InterfaceStability.Unstable
class PartialListing {
private final String priorLastKey;
private final FileMetadata[] files;
private final FileMetadata[] commonPrefixes;
PartialListing(String priorLastKey, FileMetadata[] files,
FileMetadata[] commonPrefixes) {
this.priorLastKey = priorLastKey;
this.files = files;
this.commonPrefixes = commonPrefixes;
}
public FileMetadata[] getFiles() {
return files;
}
public FileMetadata[] getCommonPrefixes() {
return commonPrefixes;
}
public String getPriorLastKey() {
return priorLastKey;
}
}
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