001/*
002 * JDrupes Builder
003 * Copyright (C) 2026 Michael N. Lipp
004 * 
005 * This program is free software: you can redistribute it and/or modify
006 * it under the terms of the GNU Affero General Public License as
007 * published by the Free Software Foundation, either version 3 of the
008 * License, or (at your option) any later version.
009 *
010 * This program is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
013 * GNU Affero General Public License for more details.
014 *
015 * You should have received a copy of the GNU Affero General Public License
016 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
017 */
018
019package org.jdrupes.builder.bnd;
020
021import java.lang.reflect.Proxy;
022import java.nio.file.Path;
023import java.util.Optional;
024import org.jdrupes.builder.api.Project;
025import org.jdrupes.builder.api.Proxyable;
026import org.jdrupes.builder.api.Resource;
027import org.jdrupes.builder.api.ResourceFactory;
028import org.jdrupes.builder.api.ResourceType;
029import static org.jdrupes.builder.bnd.BndTypes.*;
030import org.jdrupes.builder.core.ForwardingHandler;
031
032/// A factory for creating Bnd related resource objects.
033///
034public class BndResourceFactory implements ResourceFactory {
035
036    /// Instantiates a new bnd resource factory.
037    ///
038    public BndResourceFactory() {
039        // Make javadoc happy
040    }
041
042    @SuppressWarnings("unchecked")
043    @Override
044    public <T extends Resource> Optional<T> newResource(ResourceType<T> type,
045            Project project, Object... args) {
046        if (BndBaselineEvaluationType.isAssignableFrom(type)) {
047            return Optional
048                .of((T) Proxy.newProxyInstance(type.rawType().getClassLoader(),
049                    new Class<?>[] { type.rawType(), Proxyable.class },
050                    new ForwardingHandler(
051                        new DefaultBndBaselineEvaluation(type, project,
052                            (Path) args[0]))));
053        }
054        return Optional.empty();
055    }
056
057}