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.gen.graphcommons;
019
020import dev.enola.common.io.mediatype.MediaTypes;
021import dev.enola.common.io.resource.ReadableResource;
022import dev.enola.common.io.resource.WritableResource;
023import dev.enola.common.io.resource.convert.CatchingResourceConverter;
024import dev.enola.thing.io.Loader;
025
026public class GraphCommonsResourceConverter implements CatchingResourceConverter {
027
028    private final GraphCommonsJsonGenerator graphCommonsGenerator;
029    private final Loader loader;
030
031    public GraphCommonsResourceConverter(
032            Loader loader, GraphCommonsJsonGenerator graphCommonsGenerator) {
033        this.loader = loader;
034        this.graphCommonsGenerator = graphCommonsGenerator;
035    }
036
037    @Override
038    public boolean convertIntoThrows(ReadableResource from, WritableResource into)
039            throws Exception {
040        if (!MediaTypes.normalizedNoParamsEquals(into.mediaType(), GraphCommonsMediaType.GCJSON))
041            return false;
042
043        var things = loader.loadAtLeastOneThing(from.uri());
044        graphCommonsGenerator.convertIntoOrThrow(things, into);
045        return true;
046    }
047}