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Extensions to integrate Micronaut and Spring

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/*
 * Copyright 2017-2020 original authors
 *
 * 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
 *
 * https://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 io.micronaut.spring.context.convert;

import io.micronaut.spring.beans.MicronautContextInternal;
import jakarta.inject.Named;
import jakarta.inject.Singleton;
import org.springframework.core.convert.ConversionService;
import org.springframework.core.convert.TypeDescriptor;

/**
 * ConversionService adapter.
 *
 * @author graemerocher
 * @since 1.0
 */
@Singleton
@Named("conversionService")
public class MicronautConversionService implements ConversionService, MicronautContextInternal {

    private final io.micronaut.core.convert.ConversionService conversionService;

    /**
     * Default constructor.
     * @param conversionService The target service
     */
    public MicronautConversionService(io.micronaut.core.convert.ConversionService conversionService) {
        this.conversionService = conversionService;
    }

    @Override
    public boolean canConvert(Class sourceType, Class targetType) {
        return conversionService.canConvert(sourceType, targetType);
    }

    @Override
    public boolean canConvert(TypeDescriptor sourceType, TypeDescriptor targetType) {
        return conversionService.canConvert(sourceType.getType(), targetType.getType());
    }

    @Override
    public  T convert(Object source, Class targetType) {
        return conversionService.convert(source, targetType).orElse(null);
    }

    @Override
    public Object convert(Object source, TypeDescriptor sourceType, TypeDescriptor targetType) {
        return conversionService.convert(source.getClass(), targetType.getType()).orElse(null);
    }
}