hadoop OpenFileParameters 源码
haddop OpenFileParameters 代码
文件路径：/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/impl/OpenFileParameters.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.impl;
import java.util.Set;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileStatus;
import static java.util.Objects.requireNonNull;
/**
* All the parameters from the openFile builder for the
* {@code openFileWithOptions} commands.
*
* If/when new attributes added to the builder, this class will be extended.
*/
public class OpenFileParameters {
/**
* Set of options declared as mandatory.
*/
private Set<String> mandatoryKeys;
/** The optional keys. */
private Set<String> optionalKeys;
/**
* Options set during the build sequence.
*/
private Configuration options;
/**
* Buffer size.
*/
private int bufferSize;
/**
* Optional file status.
*/
private FileStatus status;
public OpenFileParameters() {
}
public OpenFileParameters withMandatoryKeys(final Set<String> keys) {
this.mandatoryKeys = requireNonNull(keys);
return this;
}
public OpenFileParameters withOptionalKeys(final Set<String> keys) {
this.optionalKeys = requireNonNull(keys);
return this;
}
public OpenFileParameters withOptions(final Configuration opts) {
this.options = requireNonNull(opts);
return this;
}
public OpenFileParameters withBufferSize(final int size) {
this.bufferSize = size;
return this;
}
public OpenFileParameters withStatus(final FileStatus st) {
this.status = st;
return this;
}
public Set<String> getMandatoryKeys() {
return mandatoryKeys;
}
public Set<String> getOptionalKeys() {
return optionalKeys;
}
public Configuration getOptions() {
return options;
}
public int getBufferSize() {
return bufferSize;
}
public FileStatus getStatus() {
return status;
}
}
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