hadoop MultipartUploaderBuilder 源码
haddop MultipartUploaderBuilder 代码
文件路径：/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/MultipartUploaderBuilder.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;
import javax.annotation.Nonnull;
import java.io.IOException;
import org.apache.hadoop.fs.permission.FsPermission;
/**
* Builder interface for Multipart readers.
* @param <S> MultipartUploader Generic Type.
* @param <B> MultipartUploaderBuilder Generic Type.
*/
public interface MultipartUploaderBuilder<S extends MultipartUploader, B extends MultipartUploaderBuilder<S, B>>
extends FSBuilder<S, B> {
/**
* Set permission for the file.
* @param perm permission.
* @return B Generics Type.
*/
B permission(@Nonnull FsPermission perm);
/**
* Set the size of the buffer to be used.
* @param bufSize buffer size.
* @return B Generics Type.
*/
B bufferSize(int bufSize);
/**
* Set replication factor.
* @param replica replica.
* @return B Generics Type.
*/
B replication(short replica);
/**
* Set block size.
* @param blkSize blkSize.
* @return B Generics Type.
*/
B blockSize(long blkSize);
/**
* Create an FSDataOutputStream at the specified path.
* @return B Generics Type.
*/
B create();
/**
* Set to true to overwrite the existing file.
* Set it to false, an exception will be thrown when calling {@link #build()}
* if the file exists.
* @param overwrite overwrite.
* @return B Generics Type.
*/
B overwrite(boolean overwrite);
/**
* Append to an existing file (optional operation).
* @return B Generics Type.
*/
B append();
/**
* Set checksum opt.
* @param chksumOpt chk sum opt.
* @return B Generics Type.
*/
B checksumOpt(@Nonnull Options.ChecksumOpt chksumOpt);
/**
* Create the FSDataOutputStream to write on the file system.
*
* @throws IllegalArgumentException if the parameters are not valid.
* @throws IOException on errors when file system creates or appends the file.
* @return S Generics Type.
*/
S build() throws IllegalArgumentException, IOException;
}
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