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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.maven.repository.metadata;
20  
21  import java.util.List;
22  
23  import org.apache.maven.artifact.repository.ArtifactRepository;
24  
25  /**
26   * Provides some metadata operations, like querying the remote repository for a list of versions available for an
27   * artifact.
28   *
29   * @author Jason van Zyl
30   */
31  public interface MetadataSource {
32      String ROLE = MetadataSource.class.getName();
33  
34      MetadataResolution retrieve(
35              ArtifactMetadata artifact, ArtifactRepository localRepository, List<ArtifactRepository> remoteRepositories)
36              throws MetadataRetrievalException;
37  }