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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.model.interpolation;
20  
21  import java.io.File;
22  
23  import org.apache.maven.model.Model;
24  import org.apache.maven.model.building.ModelBuildingRequest;
25  import org.apache.maven.model.building.ModelProblemCollector;
26  
27  /**
28   * Replaces expressions of the form <code>${token}</code> with their effective values. Effective values are basically
29   * calculated from the elements of the model itself and the execution properties from the building request.
30   *
31   */
32  public interface ModelInterpolator {
33  
34      /**
35       * Interpolates expressions in the specified model. Note that implementations are free to either interpolate the
36       * provided model directly or to create a clone of the model and interpolate the clone. Callers should always use
37       * the returned model and must not rely on the input model being updated.
38       *
39       * @param model The model to interpolate, must not be {@code null}.
40       * @param projectDir The project directory, may be {@code null} if the model does not belong to a local project but
41       *            to some artifact's metadata.
42       * @param request The model building request that holds further settings, must not be {@code null}.
43       * @param problems The container used to collect problems that were encountered, must not be {@code null}.
44       * @return The interpolated model, never {@code null}.
45       */
46      Model interpolateModel(Model model, File projectDir, ModelBuildingRequest request, ModelProblemCollector problems);
47  
48      org.apache.maven.api.model.Model interpolateModel(
49              org.apache.maven.api.model.Model model,
50              File projectDir,
51              ModelBuildingRequest request,
52              ModelProblemCollector problems);
53  }