001package org.apache.maven;
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 java.util.Collection;
023import java.util.Collections;
024import java.util.HashSet;
025import java.util.Iterator;
026import java.util.LinkedHashSet;
027import java.util.Set;
028
029import org.apache.maven.artifact.Artifact;
030import org.apache.maven.artifact.ArtifactUtils;
031import org.apache.maven.artifact.resolver.ArtifactNotFoundException;
032import org.apache.maven.artifact.resolver.ArtifactResolutionException;
033import org.apache.maven.artifact.resolver.ArtifactResolutionRequest;
034import org.apache.maven.artifact.resolver.ArtifactResolutionResult;
035import org.apache.maven.artifact.resolver.MultipleArtifactsNotFoundException;
036import org.apache.maven.artifact.resolver.ResolutionErrorHandler;
037import org.apache.maven.artifact.resolver.filter.CumulativeScopeArtifactFilter;
038import org.apache.maven.execution.MavenSession;
039import org.apache.maven.project.MavenProject;
040import org.apache.maven.project.artifact.ProjectArtifact;
041import org.apache.maven.repository.RepositorySystem;
042import org.codehaus.plexus.component.annotations.Component;
043import org.codehaus.plexus.component.annotations.Requirement;
044
045@Component( role = ProjectDependenciesResolver.class )
046public class DefaultProjectDependenciesResolver
047    implements ProjectDependenciesResolver
048{
049
050    @Requirement
051    private RepositorySystem repositorySystem;
052
053    @Requirement
054    private ResolutionErrorHandler resolutionErrorHandler;
055
056    public Set<Artifact> resolve( MavenProject project, Collection<String> scopesToResolve, MavenSession session )
057        throws ArtifactResolutionException, ArtifactNotFoundException
058    {
059        return resolve( Collections.singleton( project ), scopesToResolve, session );
060    }
061
062    public Set<Artifact> resolve( MavenProject project, Collection<String> scopesToCollect,
063                                  Collection<String> scopesToResolve, MavenSession session )
064        throws ArtifactResolutionException, ArtifactNotFoundException
065    {
066        Set<MavenProject> mavenProjects = Collections.singleton( project );
067        return resolveImpl( mavenProjects, scopesToCollect, scopesToResolve, session,
068                            getIgnorableArtifacts( mavenProjects ) );
069    }
070
071    public Set<Artifact> resolve( Collection<? extends MavenProject> projects, Collection<String> scopesToResolve,
072                                  MavenSession session )
073        throws ArtifactResolutionException, ArtifactNotFoundException
074    {
075        return resolveImpl( projects, null, scopesToResolve, session, getIgnorableArtifacts( projects ) );
076    }
077
078    public Set<Artifact> resolve( MavenProject project, Collection<String> scopesToCollect,
079                                  Collection<String> scopesToResolve, MavenSession session,
080                                  Set<Artifact> ignoreableArtifacts )
081        throws ArtifactResolutionException, ArtifactNotFoundException
082    {
083        return resolveImpl( Collections.singleton( project ), scopesToCollect, scopesToResolve, session,
084                            getIgnorableArtifacts( ignoreableArtifacts ) );
085    }
086
087
088    private Set<Artifact> resolveImpl( Collection<? extends MavenProject> projects, Collection<String> scopesToCollect,
089                                       Collection<String> scopesToResolve, MavenSession session,
090                                       Set<String> projectIds )
091        throws ArtifactResolutionException, ArtifactNotFoundException
092    {
093        Set<Artifact> resolved = new LinkedHashSet<Artifact>();
094
095        if ( projects == null || projects.isEmpty() )
096        {
097            return resolved;
098        }
099
100        if ( ( scopesToCollect == null || scopesToCollect.isEmpty() )
101            && ( scopesToResolve == null || scopesToResolve.isEmpty() ) )
102        {
103            return resolved;
104        }
105
106        /*
107
108        Logic for transitive global exclusions
109
110        List<String> exclusions = new ArrayList<String>();
111
112        for ( Dependency d : project.getDependencies() )
113        {
114            if ( d.getExclusions() != null )
115            {
116                for ( Exclusion e : d.getExclusions() )
117                {
118                    exclusions.add(  e.getGroupId() + ":" + e.getArtifactId() );
119                }
120            }
121        }
122
123        ArtifactFilter scopeFilter = new ScopeArtifactFilter( scope );
124
125        ArtifactFilter filter;
126
127        if ( ! exclusions.isEmpty() )
128        {
129            filter = new AndArtifactFilter( Arrays.asList( new ArtifactFilter[]{ new ExcludesArtifactFilter( exclusions ), scopeFilter } ) );
130        }
131        else
132        {
133            filter = scopeFilter;
134        }
135        */
136
137        CumulativeScopeArtifactFilter resolutionScopeFilter = new CumulativeScopeArtifactFilter( scopesToResolve );
138
139        CumulativeScopeArtifactFilter collectionScopeFilter = new CumulativeScopeArtifactFilter( scopesToCollect );
140        collectionScopeFilter = new CumulativeScopeArtifactFilter( collectionScopeFilter, resolutionScopeFilter );
141
142        ArtifactResolutionRequest request =
143            new ArtifactResolutionRequest().setResolveRoot( false ).setResolveTransitively( true ).setCollectionFilter(
144                collectionScopeFilter ).setResolutionFilter( resolutionScopeFilter ).setLocalRepository(
145                session.getLocalRepository() ).setOffline( session.isOffline() ).setForceUpdate(
146                session.getRequest().isUpdateSnapshots() );
147        request.setServers( session.getRequest().getServers() );
148        request.setMirrors( session.getRequest().getMirrors() );
149        request.setProxies( session.getRequest().getProxies() );
150
151        for ( MavenProject project : projects )
152        {
153            request.setArtifact( new ProjectArtifact( project ) );
154            request.setArtifactDependencies( project.getDependencyArtifacts() );
155            request.setManagedVersionMap( project.getManagedVersionMap() );
156            request.setRemoteRepositories( project.getRemoteArtifactRepositories() );
157
158            ArtifactResolutionResult result = repositorySystem.resolve( request );
159
160            try
161            {
162                resolutionErrorHandler.throwErrors( request, result );
163            }
164            catch ( MultipleArtifactsNotFoundException e )
165            {
166
167                Collection<Artifact> missing = new HashSet<Artifact>( e.getMissingArtifacts() );
168
169                for ( Iterator<Artifact> it = missing.iterator(); it.hasNext(); )
170                {
171                    String key = ArtifactUtils.key( it.next() );
172                    if ( projectIds.contains( key ) )
173                    {
174                        it.remove();
175                    }
176                }
177
178                if ( !missing.isEmpty() )
179                {
180                    throw e;
181                }
182            }
183
184            resolved.addAll( result.getArtifacts() );
185        }
186
187        return resolved;
188    }
189
190
191    private Set<String> getIgnorableArtifacts( Collection<? extends MavenProject> projects )
192    {
193        Set<String> projectIds = new HashSet<String>( projects.size() * 2 );
194
195        for ( MavenProject p : projects )
196        {
197            String key = ArtifactUtils.key( p.getGroupId(), p.getArtifactId(), p.getVersion() );
198            projectIds.add( key );
199        }
200        return projectIds;
201    }
202
203    private Set<String> getIgnorableArtifacts( Iterable<Artifact> artifactIterable )
204    {
205        Set<String> projectIds = new HashSet<String>();
206
207        for ( Artifact artifact : artifactIterable )
208        {
209            String key = ArtifactUtils.key( artifact );
210            projectIds.add( key );
211        }
212        return projectIds;
213    }
214
215}