Java tutorial
/** * ========================================================================================== * = JAHIA'S DUAL LICENSING - IMPORTANT INFORMATION = * ========================================================================================== * * http://www.jahia.com * * Copyright (C) 2002-2018 Jahia Solutions Group SA. All rights reserved. * * THIS FILE IS AVAILABLE UNDER TWO DIFFERENT LICENSES: * 1/GPL OR 2/JSEL * * 1/ GPL * ================================================================================== * * IF YOU DECIDE TO CHOOSE THE GPL LICENSE, YOU MUST COMPLY WITH THE FOLLOWING TERMS: * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * * * 2/ JSEL - Commercial and Supported Versions of the program * =================================================================================== * * IF YOU DECIDE TO CHOOSE THE JSEL LICENSE, YOU MUST COMPLY WITH THE FOLLOWING TERMS: * * Alternatively, commercial and supported versions of the program - also known as * Enterprise Distributions - must be used in accordance with the terms and conditions * contained in a separate written agreement between you and Jahia Solutions Group SA. * * If you are unsure which license is appropriate for your use, * please contact the sales department at sales@jahia.com. */ package org.jahia.utils.maven.plugin.support; import java.util.List; import org.apache.maven.execution.MavenSession; import org.apache.maven.plugin.MojoExecutionException; import org.apache.maven.plugin.logging.Log; import org.apache.maven.project.MavenProject; import org.codehaus.plexus.PlexusContainer; import org.codehaus.plexus.component.repository.exception.ComponentLookupException; import org.eclipse.aether.RepositorySystemSession; import org.sonatype.aether.RepositorySystem; /** * Factory for obtaining an instance of the proper artifact and dependency resolver, depending on the Maven execution environment. * * @author Sergiy Shyrkov */ public final class AetherHelperFactory { /** * Obtains an instance of the proper artifact and dependency resolver, depending on the Maven execution environment * * @param container * @param project * @param session * @param log * @return an instance of the proper artifact and dependency resolver * @throws MojoExecutionException */ @SuppressWarnings("unchecked") public static AetherHelper create(PlexusContainer container, MavenProject project, MavenSession session, Log log) throws MojoExecutionException { try { if (container.hasComponent("org.sonatype.aether.RepositorySystem")) { log.info("Using Aether helper for Maven 3.0.x"); warnMavenVersion(log); return new Maven30AetherHelper(container.lookup(RepositorySystem.class), session.getRepositorySession(), project.getRemoteProjectRepositories(), log); } else if (container.hasComponent(org.eclipse.aether.RepositorySystem.class)) { Object repoSession; try { repoSession = MavenSession.class.getMethod("getRepositorySession").invoke(session); } catch (Exception e) { throw new MojoExecutionException(e.getMessage(), e); } List<?> remoteRepos = project.getRemoteProjectRepositories(); log.info("Using Aether helper for Maven 3.1+"); return new Maven31AetherHelper(container.lookup(org.eclipse.aether.RepositorySystem.class), (RepositorySystemSession) repoSession, (List<org.eclipse.aether.repository.RemoteRepository>) remoteRepos, log); } } catch (ComponentLookupException e) { throw new MojoExecutionException(e.getMessage(), e); } throw new MojoExecutionException( "Unable to find either Sonatype's Aether nor Eclipse's Aether implementations"); } private static void warnMavenVersion(Log log) { log.warn(""); log.warn("************************* DEPRECATION *************************"); log.warn("* *"); log.warn("* The version of Maven (3.0.x), you are using, is deprecated. *"); log.warn("* Please, switch to a more recent one (e.g. 3.3.x). *"); log.warn("* *"); log.warn("***************************************************************"); log.warn(""); } }