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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.internal.impl.model;
20  
21  import org.apache.maven.api.model.Model;
22  import org.apache.maven.api.services.ModelSource;
23  
24  /**
25   * Holds a model along with some auxiliary information. This internal utility class assists the model builder during POM
26   * processing by providing a means to transport information that cannot be (easily) extracted from the model itself.
27   */
28  record ModelData(ModelSource source, Model model) {
29  
30      /**
31       * Gets unique identifier of the model
32       *
33       * @return The effective identifier of the model, never {@code null}.
34       */
35      public String id() {
36          // if source is null, it is the super model, which can be accessed via empty string
37          return source != null ? source.getLocation() : "";
38      }
39  
40      @Override
41      public String toString() {
42          return String.valueOf(model);
43      }
44  }