ai.djl.modality.nlp.preprocess.LambdaProcessor Maven / Gradle / Ivy
/*
* Copyright 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance
* with the License. A copy of the License is located at
*
* http://aws.amazon.com/apache2.0/
*
* or in the "license" file accompanying this file. This file 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 ai.djl.modality.nlp.preprocess;
import java.util.List;
import java.util.function.Function;
import java.util.stream.Collectors;
/**
* {@code TextProcessor} will apply user defined lambda function on input tokens.
*
* The function can only support single input and output.
*/
public class LambdaProcessor implements TextProcessor {
private Function processor;
/**
* Creates a {@code LambdaProcessor} and specify the function to apply.
*
* @param processor The lambda function to apply on input String
*/
public LambdaProcessor(Function processor) {
this.processor = processor;
}
/** {@inheritDoc} */
@Override
public List preprocess(List tokens) {
return tokens.stream().map(processor).collect(Collectors.toList());
}
}