001/*
002 * SPDX-License-Identifier: Apache-2.0
003 *
004 * Copyright 2024-2026 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.thing.message;
019
020import dev.enola.common.convert.ConversionException;
021import dev.enola.data.ProviderFromIRI;
022import dev.enola.datatype.DatatypeRepository;
023import dev.enola.thing.Thing;
024import dev.enola.thing.repo.ThingProvider;
025
026import org.jspecify.annotations.Nullable;
027
028import java.io.UncheckedIOException;
029
030/**
031 * ThingProviderAdapter is a {@link ThingProvider} which delegates to any {@link ProviderFromIRI} of
032 * proto Thing, and then wraps the results with a {@link ThingAdapter}.
033 */
034public class ThingProviderAdapter implements ThingProvider {
035
036    private final ProviderFromIRI<dev.enola.thing.proto.Thing> protoThingProvider;
037    private final DatatypeRepository datatypeRepository;
038
039    public ThingProviderAdapter(
040            ProviderFromIRI<dev.enola.thing.proto.Thing> protoThingProvider,
041            DatatypeRepository datatypeRepository) {
042        this.protoThingProvider = protoThingProvider;
043        this.datatypeRepository = datatypeRepository;
044    }
045
046    @Override
047    public @Nullable Thing get(String iri) throws UncheckedIOException, ConversionException {
048        var protoThing = protoThingProvider.get(iri);
049        if (protoThing != null) return new ThingAdapter(protoThing, datatypeRepository);
050        else return null;
051    }
052}