001/*
002 * SPDX-License-Identifier: Apache-2.0
003 *
004 * Copyright 2024-2025 The Enola <https://enola.dev> Authors
005 *
006 * Licensed under the Apache License, Version 2.0 (the "License");
007 * you may not use this file except in compliance with the License.
008 * You may obtain a copy of the License at
009 *
010 *     https://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package dev.enola.common.convert;
019
020import com.google.common.collect.ImmutableList;
021
022import org.jspecify.annotations.Nullable;
023
024import java.io.IOException;
025import java.util.Optional;
026
027public class ObjectClassConverterChain implements ObjectClassConverter<Object> {
028
029    private final Iterable<ObjectClassConverter> converters;
030
031    public ObjectClassConverterChain(Iterable<ObjectClassConverter> converters) {
032        this.converters = converters;
033    }
034
035    public ObjectClassConverterChain(ObjectClassConverter... converters) {
036        this(ImmutableList.copyOf(converters));
037    }
038
039    @Override
040    public <T> Optional<T> convertToType(@Nullable Object input, Class<T> type) throws IOException {
041        if (input == null) return Optional.empty();
042        for (ObjectClassConverter converter : converters) {
043            Optional<T> converted = converter.convertToType(input, type);
044            if (converted.isPresent()) {
045                return converted;
046            }
047        }
048        return Optional.empty();
049    }
050}