001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.eclipse.aether.internal.impl.collect;
020
021import java.util.ArrayList;
022import java.util.Collections;
023import java.util.Iterator;
024import java.util.List;
025
026import org.eclipse.aether.RepositorySystemSession;
027import org.eclipse.aether.collection.VersionFilter;
028import org.eclipse.aether.graph.Dependency;
029import org.eclipse.aether.repository.ArtifactRepository;
030import org.eclipse.aether.repository.RemoteRepository;
031import org.eclipse.aether.resolution.VersionRangeResult;
032import org.eclipse.aether.version.Version;
033import org.eclipse.aether.version.VersionConstraint;
034
035/**
036 * Default implementation of {@link VersionFilter.VersionFilterContext}.
037 * Internal helper class for collector implementations.
038 */
039public final class DefaultVersionFilterContext implements VersionFilter.VersionFilterContext {
040    private final RepositorySystemSession session;
041
042    private Dependency dependency;
043
044    VersionRangeResult result;
045
046    private List<Version> versions;
047
048    public DefaultVersionFilterContext(RepositorySystemSession session) {
049        this.session = session;
050    }
051
052    public void set(Dependency dependency, VersionRangeResult result) {
053        this.dependency = dependency;
054        this.result = result;
055        this.versions = new ArrayList<>(result.getVersions());
056    }
057
058    public List<Version> get() {
059        return new ArrayList<>(versions);
060    }
061
062    @Override
063    public RepositorySystemSession getSession() {
064        return session;
065    }
066
067    @Override
068    public Dependency getDependency() {
069        return dependency;
070    }
071
072    @Override
073    public VersionConstraint getVersionConstraint() {
074        return result.getVersionConstraint();
075    }
076
077    @Override
078    public int getCount() {
079        return versions.size();
080    }
081
082    @Override
083    public ArtifactRepository getRepository(Version version) {
084        return result.getRepository(version);
085    }
086
087    @Override
088    public List<RemoteRepository> getRepositories() {
089        return Collections.unmodifiableList(result.getRequest().getRepositories());
090    }
091
092    @Override
093    public Iterator<Version> iterator() {
094        return versions.iterator();
095    }
096
097    @Override
098    public String toString() {
099        return dependency + " " + result.getVersions();
100    }
101}