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.rdf.io;
019
020import dev.enola.common.io.resource.ReadableResource;
021import dev.enola.common.io.resource.ResourceProvider;
022import dev.enola.common.io.resource.WritableResource;
023import dev.enola.common.io.resource.convert.CatchingResourceConverter;
024
025public class RdfResourceConverter implements CatchingResourceConverter {
026
027    // TODO Add missing tests for this this class (it may well not work as-is yet)
028
029    // TODO Add conversion to/from Thing (incl. "chaining" to Thing YAML/JSON/BinPB)
030
031    private final RdfReaderConverterInto reader;
032
033    public RdfResourceConverter(ResourceProvider resourceProvider) {
034        this.reader = new RdfReaderConverterInto(resourceProvider);
035    }
036
037    @Override
038    public boolean convertIntoThrows(ReadableResource from, WritableResource into)
039            throws Exception {
040
041        var opt = WritableResourceRDFHandler.create(into);
042        if (opt.isEmpty()) return false;
043
044        try (var handler = opt.get()) {
045            return reader.convertInto(from, handler);
046        }
047    }
048}