001package org.apache.maven.resolver.examples;
002
003/*
004 * Licensed to the Apache Software Foundation (ASF) under one
005 * or more contributor license agreements.  See the NOTICE file
006 * distributed with this work for additional information
007 * regarding copyright ownership.  The ASF licenses this file
008 * to you under the Apache License, Version 2.0 (the
009 * "License"); you may not use this file except in compliance
010 * with the License.  You may obtain a copy of the License at
011 * 
012 *  http://www.apache.org/licenses/LICENSE-2.0
013 * 
014 * Unless required by applicable law or agreed to in writing,
015 * software distributed under the License is distributed on an
016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017 * KIND, either express or implied.  See the License for the
018 * specific language governing permissions and limitations
019 * under the License.
020 */
021
022import org.apache.maven.resolver.examples.util.Booter;
023import org.eclipse.aether.RepositorySystem;
024import org.eclipse.aether.RepositorySystemSession;
025import org.eclipse.aether.artifact.Artifact;
026import org.eclipse.aether.artifact.DefaultArtifact;
027import org.eclipse.aether.resolution.VersionRangeRequest;
028import org.eclipse.aether.resolution.VersionRangeResult;
029import org.eclipse.aether.version.Version;
030
031/**
032 * Determines the newest version of an artifact.
033 */
034public class FindNewestVersion
035{
036    /**
037     * Main.
038     * @param args
039     * @throws Exception
040     */
041    public static void main( String[] args )
042        throws Exception
043    {
044        System.out.println( "------------------------------------------------------------" );
045        System.out.println( FindNewestVersion.class.getSimpleName() );
046
047        RepositorySystem system = Booter.newRepositorySystem( Booter.selectFactory( args ) );
048
049        RepositorySystemSession session = Booter.newRepositorySystemSession( system );
050
051        Artifact artifact = new DefaultArtifact( "org.apache.maven.resolver:maven-resolver-util:[0,)" );
052
053        VersionRangeRequest rangeRequest = new VersionRangeRequest();
054        rangeRequest.setArtifact( artifact );
055        rangeRequest.setRepositories( Booter.newRepositories( system, session ) );
056
057        VersionRangeResult rangeResult = system.resolveVersionRange( session, rangeRequest );
058
059        Version newestVersion = rangeResult.getHighestVersion();
060
061        System.out.println( "Newest version " + newestVersion + " from repository "
062            + rangeResult.getRepository( newestVersion ) );
063    }
064
065}