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1   package org.apache.maven;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *   http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import org.apache.maven.artifact.Artifact;
23  import org.apache.maven.artifact.resolver.ArtifactNotFoundException;
24  import org.apache.maven.artifact.resolver.ArtifactResolutionException;
25  import org.apache.maven.execution.MavenSession;
26  import org.apache.maven.project.MavenProject;
27  
28  import java.util.Collection;
29  import java.util.Set;
30  
31  /**
32   * Common interface for plugins and other third-party components running inside a Maven runtime to
33   * resolve the transitive dependency closure for various {@link MavenProject} instances.
34   * 
35   * @author jdcasey
36   */
37  // NOTE: The package specified for this interface is REQUIRED, since it must match Maven 3.x!!
38  public interface ProjectDependenciesResolver
39  {
40      /**
41       * Resolve the dependencies for a collection of {@link MavenProject} instances, using a common
42       * set of remote repositories and a common set of scopes.
43       * 
44       * @param projects The projects whose dependencies should be resolved.
45       * @param scopes The list of scopes to resolve. These scopes may imply other scopes.
46       * @param session Contains the local repository, along with other settings related to artifact resolution.
47       * @return The set of resolved artifacts. If the projects contain no dependencies, this will return an empty set.
48       * @throws ArtifactResolutionException In case {@link Artifact} instances cannot be created from 
49       *          project {@link org.apache.maven.model.Dependency} instances, or artifact resolution fails.
50       * @throws ArtifactNotFoundException In cases where one or more dependency artifacts cannot be found in the
51       *          various repositories.
52       */
53      Set<Artifact> resolve( Collection<? extends MavenProject> projects, Collection<String> scopes,
54                                    MavenSession session )
55          throws ArtifactResolutionException, ArtifactNotFoundException;
56  
57      /**
58       * Resolve the dependencies for a single {@link MavenProject} instance, using the supplied
59       * set of remote repositories and scopes.
60       * 
61       * @param project The project whose dependencies should be resolved.
62       * @param scopes The list of scopes to resolve. These scopes may imply other scopes.
63       * @param session Contains the local repository, along with other settings related to artifact resolution.
64       * @return The set of resolved artifacts. If the project contains no dependencies, this will return an empty set.
65       * @throws ArtifactResolutionException In case {@link Artifact} instances cannot be created from the
66       *          project {@link org.apache.maven.model.Dependency} instance, or artifact resolution fails.
67       * @throws ArtifactNotFoundException In cases where one or more dependency artifacts cannot be found in the
68       *          various repositories.
69       */
70      Set<Artifact> resolve( MavenProject project, Collection<String> scopes, MavenSession session  )
71          throws ArtifactResolutionException, ArtifactNotFoundException;
72  }