001/*
002 * JDrupes Builder
003 * Copyright (C) 2025 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.java;
020
021import java.nio.file.Path;
022import java.util.Optional;
023import org.jdrupes.builder.api.Project;
024import org.jdrupes.builder.api.Resource;
025import org.jdrupes.builder.api.ResourceFactory;
026import org.jdrupes.builder.api.ResourceType;
027import static org.jdrupes.builder.core.CoreResourceFactory.*;
028import static org.jdrupes.builder.java.JavaTypes.*;
029
030/// A factory for creating Java related resource objects.
031///
032public class JavaResourceFactory implements ResourceFactory {
033
034    /// Instantiates a new java resource factory.
035    ///
036    @SuppressWarnings("PMD.UnnecessaryConstructor")
037    public JavaResourceFactory() {
038        // Make javadoc happy
039    }
040
041    @SuppressWarnings("unchecked")
042    @Override
043    public <T extends Resource> Optional<T> newResource(ResourceType<T> type,
044            Project project, Object... args) {
045        if (ClassTreeType.isAssignableFrom(type)
046            && type.rawType().getSuperclass() == null
047            && !addsMethod(ClassTree.class,
048                (Class<? extends ClassTree>) type.rawType())) {
049            return Optional
050                .of((T) DefaultClassTree.createClassTree(
051                    (ResourceType<? extends ClassTree>) type, project,
052                    (Path) args[0]));
053        }
054        if (LibraryJarFileType.isAssignableFrom(type)
055            && type.rawType().getSuperclass() == null
056            && !addsMethod(LibraryJarFile.class,
057                (Class<? extends LibraryJarFile>) type.rawType())) {
058            return Optional.of((T) DefaultLibraryJarFile.createLibraryJarFile(
059                (ResourceType<? extends JarFile>) type, (Path) args[0]));
060        }
061        if (JarFileType.isAssignableFrom(type)
062            && type.rawType().getSuperclass() == null
063            && !addsMethod(JarFile.class,
064                (Class<? extends JarFile>) type.rawType())) {
065            return Optional.of((T) DefaultJarFile.createJarFile(
066                (ResourceType<? extends JarFile>) type, (Path) args[0]));
067        }
068        if (JavaResourceTree.class.equals(type.rawType())) {
069            return Optional.of((T) new JavaResourceTree(project,
070                (Path) args[0], (String) args[1]));
071        }
072        return Optional.empty();
073    }
074
075}