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1   package org.apache.maven.model.building;
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 java.nio.file.Path;
23  
24  import org.apache.maven.model.Model;
25  
26  /**
27   * Context used to transform a pom file.
28   *
29   *
30   * @author Robert Scholte
31   * @since 4.0.0
32   */
33  public interface TransformerContext
34  {
35      /**
36       * Key to get the TransformerContext from the SessionData
37       */
38      Object KEY = TransformerContext.class;
39  
40      /**
41       * Get the value of the commandline argument {@code -Dkey=value}
42       * @param key
43       * @return
44       */
45      String getUserProperty( String key );
46  
47      /**
48       * Get the model based on the path, will be used to resolve the parent based on relativePath
49       *
50       * @param pomFile the path to the pomFile
51       * @return the model, otherwise {@code null}
52       */
53      Model getRawModel( Path pomFile );
54  
55      /**
56       * Get the model from the reactor based on the groupId and artifactId, will be used for reactor dependencies
57       *
58       * @param groupId the groupId
59       * @param artifactId the artifactId
60       * @return the model, otherwise {@code null}
61       * @throws IllegalStateException if multiple versions of the same GA are part of the reactor
62       */
63      Model getRawModel( String groupId, String artifactId );
64  }