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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.api.services;
20  
21  import java.util.List;
22  
23  import org.apache.maven.api.model.InputLocation;
24  import org.apache.maven.api.model.Model;
25  
26  /**
27   * Collects problems that are encountered during model building. The primary purpose of this component is to account for
28   * the fact that the problem reporter has/should not have information about the calling context and hence cannot provide
29   * an expressive source hint for the model problem. Instead, the source hint is configured by the model builder before
30   * it delegates to other components that potentially encounter problems. Then, the problem reporter can focus on
31   * providing a simple error message, leaving the donkey work of creating a nice model problem to this component.
32   *
33   */
34  public interface ModelProblemCollector {
35  
36      /**
37       * The collected problems.
38       * @return a list of model problems encountered, never {@code null}
39       */
40      List<ModelProblem> getProblems();
41  
42      boolean hasErrors();
43  
44      boolean hasFatalErrors();
45  
46      default void add(BuilderProblem.Severity severity, ModelProblem.Version version, String message) {
47          add(severity, version, message, null, null);
48      }
49  
50      default void add(
51              BuilderProblem.Severity severity, ModelProblem.Version version, String message, InputLocation location) {
52          add(severity, version, message, location, null);
53      }
54  
55      default void add(
56              BuilderProblem.Severity severity, ModelProblem.Version version, String message, Exception exception) {
57          add(severity, version, message, null, exception);
58      }
59  
60      void add(
61              BuilderProblem.Severity severity,
62              ModelProblem.Version version,
63              String message,
64              InputLocation location,
65              Exception exception);
66  
67      void add(ModelProblem problem);
68  
69      ModelBuilderException newModelBuilderException();
70  
71      void setSource(String location);
72  
73      void setSource(Model model);
74  
75      String getSource();
76  
77      void setRootModel(Model model);
78  
79      Model getRootModel();
80  }