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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.util.List;
23  
24  import org.apache.maven.model.Model;
25  import org.apache.maven.model.Profile;
26  
27  /**
28   * Collects the output of the model builder.
29   * 
30   * @author Benjamin Bentmann
31   */
32  public interface ModelBuildingResult
33  {
34  
35      /**
36       * Gets the sequence of model identifiers that denote the lineage of models from which the effective model was
37       * constructed. Model identifiers have the form {@code <groupId>:<artifactId>:<version>}. The first identifier from
38       * the list denotes the model on which the model builder was originally invoked. The last identifier will always be
39       * an empty string that by definition denotes the super POM.
40       * 
41       * @return The model identifiers from the lineage of models, never {@code null}.
42       */
43      List<String> getModelIds();
44  
45      /**
46       * Gets the assembled model.
47       * 
48       * @return The assembled model, never {@code null}.
49       */
50      Model getEffectiveModel();
51  
52      /**
53       * Gets the raw model as it was read from the input model source. Apart from basic validation, the raw model has not
54       * undergone any updates by the model builder, e.g. reflects neither inheritance nor interpolation.
55       * 
56       * @return The raw model, never {@code null}.
57       */
58      Model getRawModel();
59  
60      /**
61       * Gets the specified raw model as it was read from a model source. Apart from basic validation, a raw model has not
62       * undergone any updates by the model builder, e.g. reflects neither inheritance nor interpolation. The model
63       * identifier should be from the collection obtained by {@link #getModelIds()}. As a special case, an empty string
64       * can be used as the identifier for the super POM.
65       * 
66       * @param modelId The identifier of the desired raw model, must not be {@code null}.
67       * @return The raw model or {@code null} if the specified model id does not refer to a known model.
68       */
69      Model getRawModel( String modelId );
70  
71      /**
72       * Gets the profiles from the specified model that were active during model building. The model identifier should be
73       * from the collection obtained by {@link #getModelIds()}. As a special case, an empty string can be used as the
74       * identifier for the super POM.
75       * 
76       * @param modelId The identifier of the model whose active profiles should be retrieved, must not be {@code null}.
77       * @return The active profiles of the model or an empty list if none or {@code null} if the specified model id does
78       *         not refer to a known model.
79       */
80      List<Profile> getActivePomProfiles( String modelId );
81  
82      /**
83       * Gets the external profiles that were active during model building. External profiles are those that were
84       * contributed by {@link ModelBuildingRequest#getProfiles()}.
85       * 
86       * @return The active external profiles or an empty list if none, never {@code null}.
87       */
88      List<Profile> getActiveExternalProfiles();
89  
90      /**
91       * Gets the problems that were encountered during the model building. Note that only problems of severity
92       * {@link ModelProblem.Severity#WARNING} and below are reported here. Problems with a higher severity level cause
93       * the model builder to fail with a {@link ModelBuildingException}.
94       * 
95       * @return The problems that were encountered during the model building, can be empty but never {@code null}.
96       */
97      List<ModelProblem> getProblems();
98  
99  }