ai.djl.translate.TranslatorFactory 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.translate;
import ai.djl.Model;
import ai.djl.util.Pair;
import java.lang.reflect.Type;
import java.util.Map;
import java.util.Set;
/** A utility class creates {@link Translator} instances. */
public interface TranslatorFactory {
/**
* Returns supported input/output classes.
*
* @return a set of supported input/output classes
*/
Set> getSupportedTypes();
/**
* Returns if the input/output is supported by the {@code TranslatorFactory}.
*
* @param input the input class
* @param output the output class
* @return {@code true} if the input/output type is supported
*/
default boolean isSupported(Class input, Class output) {
return getSupportedTypes().contains(new Pair(input, output));
}
/**
* Returns a new instance of the {@link Translator} class.
*
* @param the input data type
* @param the output data type
* @param input the input class
* @param output the output class
* @param model the {@link Model} that uses the {@link Translator}
* @param arguments the configurations for a new {@code Translator} instance
* @return a new instance of the {@code Translator} class
* @throws TranslateException if failed to create Translator instance
*/
Translator newInstance(
Class input, Class output, Model model, Map arguments)
throws TranslateException;
}