/*
* Copyright © 2016 Cask Data, Inc.
*
* Licensed 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 co.cask.cdap.internal.app.runtime.batch.dataset.input;
import co.cask.cdap.api.data.batch.InputFormatProvider;
import org.apache.hadoop.mapreduce.Mapper;
import javax.annotation.Nullable;
/**
* Encapsulates {@link InputFormatProvider} and a {@link Mapper} to use for that input.
*/
public class MapperInput {
private final InputFormatProvider inputFormatProvider;
private final Class<? extends Mapper> mapper;
/**
* Creates an instance of MapperInput with the given InputFormatProvider.
*/
public MapperInput(InputFormatProvider inputFormatProvider) {
this(inputFormatProvider, null);
}
/**
* Creates an instance of MapperInput with the given InputFormatProvider and specified Mapper class.
*/
public MapperInput(InputFormatProvider inputFormatProvider, @Nullable Class<? extends Mapper> mapper) {
this.inputFormatProvider = inputFormatProvider;
this.mapper = mapper;
}
public InputFormatProvider getInputFormatProvider() {
return inputFormatProvider;
}
@Nullable
public Class<? extends Mapper> getMapper() {
return mapper;
}
}