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1   package org.apache.maven.artifact.metadata;
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.repository.ArtifactRepository;
24  import org.apache.maven.artifact.versioning.ArtifactVersion;
25  
26  import java.util.List;
27  
28  /**
29   * Provides some metadata operations, like querying the remote repository for a list of versions available for an
30   * artifact.
31   *
32   * @author <a href="mailto:jason@maven.org">Jason van Zyl </a>
33   * @version $Id: ArtifactMetadataSource.java 675087 2008-07-09 02:23:29Z jdcasey $
34   */
35  public interface ArtifactMetadataSource
36  {
37      String ROLE = ArtifactMetadataSource.class.getName();
38  
39      ResolutionGroup retrieve( Artifact artifact, ArtifactRepository localRepository, List remoteRepositories )
40          throws ArtifactMetadataRetrievalException;
41  
42      /**
43       * Resolve all relocations in the POM for this artifact, and return the new artifact coordinate.
44       */
45      Artifact retrieveRelocatedArtifact( Artifact artifact, ArtifactRepository localRepository, List remoteRepositories )
46          throws ArtifactMetadataRetrievalException;
47  
48      /**
49       * Get a list of available versions for an artifact in the remote repository
50       *
51       * @param artifact artifact we are interested in. Only <code>groupid</code> and <code>artifactId</code>
52       *                 are needed, for instance the following code will work
53       *                 <code>artifactFactory.createProjectArtifact( "org.apache.maven", "maven", "" )</code>
54       * @param localRepository local repository
55       * @param remoteRepositories remote repositories, {@link List} $lt; {@link ArtifactRepository} >
56       * @return {@link List} $lt; {@link ArtifactVersion} >
57       * @throws ArtifactMetadataRetrievalException in case of error while retrieving repository metadata from the repository.
58       */
59      List retrieveAvailableVersions( Artifact artifact, ArtifactRepository localRepository, List remoteRepositories )
60          throws ArtifactMetadataRetrievalException;
61  }