ai.djl.modality.nlp.translator.QATranslator Maven / Gradle / Ivy
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/*
* 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.translator;
import ai.djl.modality.nlp.qa.QAInput;
import ai.djl.translate.ArgumentsUtil;
import ai.djl.translate.Batchifier;
import ai.djl.translate.Translator;
import java.util.Locale;
import java.util.Map;
/** An abstract class to define the question answering translator. */
public abstract class QATranslator implements Translator {
protected Batchifier batchifier;
protected String tokenizerName;
protected String vocab;
protected Locale locale;
protected boolean toLowerCase;
protected boolean includeTokenTypes;
protected boolean padding;
protected boolean truncation;
protected int maxLength;
protected int maxLabels;
protected QATranslator(BaseBuilder builder) {
this.batchifier = builder.batchifier;
this.tokenizerName = builder.tokenizerName;
this.vocab = builder.vocab;
this.locale = builder.locale;
this.toLowerCase = builder.toLowerCase;
this.includeTokenTypes = builder.includeTokenTypes;
this.padding = builder.padding;
this.truncation = builder.truncation;
this.maxLength = builder.maxLength;
this.maxLabels = builder.maxLabels;
}
/** {@inheritDoc} */
@Override
public Batchifier getBatchifier() {
return batchifier;
}
/** The builder for question answering translator. */
@SuppressWarnings("rawtypes")
public abstract static class BaseBuilder {
Batchifier batchifier = Batchifier.STACK;
String tokenizerName;
String vocab = "vocab.txt";
Locale locale = Locale.ROOT;
boolean toLowerCase;
boolean includeTokenTypes;
boolean padding;
boolean truncation;
int maxLength = 128;
int maxLabels;
/**
* Sets the {@link Batchifier} for the {@link Translator}.
*
* @param batchifier the {@link Batchifier} to be set
* @return this builder
*/
public T optBatchifier(Batchifier batchifier) {
this.batchifier = batchifier;
return self();
}
/**
* Sets the name of the tokenizer for the {@link Translator}.
*
* @param tokenizer the name of the tokenizer
* @return this builder
*/
public T optTokenizer(String tokenizer) {
this.tokenizerName = tokenizer;
return self();
}
/**
* Sets the name of the vocabulary file for the {@link Translator}.
*
* @param vocab name of the vocabulary file
* @return this builder
*/
public T optVocab(String vocab) {
if (vocab != null) {
this.vocab = vocab;
}
return self();
}
/**
* Sets the name of the locale for the {@link Translator}.
*
* @param locale the name of the locale
* @return this builder
*/
public T optLocale(String locale) {
if (locale != null) {
this.locale = Locale.forLanguageTag(locale);
}
return self();
}
/**
* Sets the if convert text to lower case for the {@link Translator}.
*
* @param toLowerCase if convert text to lower case
* @return this builder
*/
public T optToLowerCase(boolean toLowerCase) {
this.toLowerCase = toLowerCase;
return self();
}
/**
* Sets the if include token types for the {@link Translator}.
*
* @param includeTokenTypes if include token types
* @return this builder
*/
public T optIncludeTokenTypes(boolean includeTokenTypes) {
this.includeTokenTypes = includeTokenTypes;
return self();
}
/**
* Sets the if pad the tokens for the {@link Translator}.
*
* @param padding if pad the tokens
* @return this builder
*/
public T optPadding(boolean padding) {
this.padding = padding;
return self();
}
/**
* Sets the if truncate the tokens for the {@link Translator}.
*
* @param truncation if truncate the tokens
* @return this builder
*/
public T optTruncation(boolean truncation) {
this.truncation = truncation;
return self();
}
/**
* Sets the max number of tokens for the {@link Translator}.
*
* @param maxLength the max number of tokens
* @return this builder
*/
public T optMaxLength(int maxLength) {
this.maxLength = maxLength;
return self();
}
/**
* Sets the max number of labels for the {@link Translator}.
*
* @param maxLabels the max number of labels
* @return this builder
*/
public T optMaxLabels(int maxLabels) {
this.maxLabels = maxLabels;
return self();
}
/**
* Configures the builder with the model arguments.
*
* @param arguments the model arguments
*/
public void configure(Map arguments) {
optTokenizer(ArgumentsUtil.stringValue(arguments, "tokenizer"));
optVocab(ArgumentsUtil.stringValue(arguments, "vocab"));
optLocale(ArgumentsUtil.stringValue(arguments, "locale"));
optToLowerCase(ArgumentsUtil.booleanValue(arguments, "toLowerCase"));
optIncludeTokenTypes(ArgumentsUtil.booleanValue(arguments, "includeTokenTypes"));
optPadding(ArgumentsUtil.booleanValue(arguments, "padding"));
optTruncation(ArgumentsUtil.booleanValue(arguments, "truncation"));
optMaxLength(ArgumentsUtil.intValue(arguments, "maxLength", 128));
optMaxLabels(ArgumentsUtil.intValue(arguments, "maxLabels"));
}
protected abstract T self();
}
}