hadoop PutObjectOptions 源码
haddop PutObjectOptions 代码
文件路径：/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/impl/PutObjectOptions.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.fs.s3a.impl;
import java.util.Map;
import javax.annotation.Nullable;
/**
* Extensible structure for options when putting/writing objects.
*/
public final class PutObjectOptions {
/**
* Can the PUT operation skip marker deletion?
*/
private final boolean keepMarkers;
/**
* Storage class, if not null.
*/
private final String storageClass;
/**
* Headers; may be null.
*/
private final Map<String, String> headers;
/**
* Constructor.
* @param keepMarkers Can the PUT operation skip marker deletion?
* @param storageClass Storage class, if not null.
* @param headers Headers; may be null.
*/
public PutObjectOptions(
final boolean keepMarkers,
@Nullable final String storageClass,
@Nullable final Map<String, String> headers) {
this.keepMarkers = keepMarkers;
this.storageClass = storageClass;
this.headers = headers;
}
/**
* Get the marker retention flag.
* @return true if markers are to be retained.
*/
public boolean isKeepMarkers() {
return keepMarkers;
}
/**
* Headers for the put/post request.
* @return headers or null.
*/
public Map<String, String> getHeaders() {
return headers;
}
@Override
public String toString() {
return "PutObjectOptions{" +
"keepMarkers=" + keepMarkers +
", storageClass='" + storageClass + '\'' +
'}';
}
private static final PutObjectOptions KEEP_DIRS = new PutObjectOptions(true,
null, null);
private static final PutObjectOptions DELETE_DIRS = new PutObjectOptions(false,
null, null);
/**
* Get the options to keep directories.
* @return an instance which keeps dirs
*/
public static PutObjectOptions keepingDirs() {
return KEEP_DIRS;
}
/**
* Get the options to delete directory markers.
* @return an instance which deletes dirs
*/
public static PutObjectOptions deletingDirs() {
return DELETE_DIRS;
}
}
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