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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.merge;
20  
21  import java.util.Map;
22  import java.util.Objects;
23  
24  /**
25   * The domain-specific model merger for the Maven POM, overriding generic code from parent class when necessary with
26   * more adapted algorithms.
27   *
28   * @deprecated use {@link org.apache.maven.internal.impl.model.MavenModelMerger} instead
29   */
30  public class MavenModelMerger extends org.apache.maven.internal.impl.model.MavenModelMerger {
31  
32      /**
33       * Merges the specified source object into the given target object.
34       *
35       * @param target The target object whose existing contents should be merged with the source, must not be
36       *            <code>null</code>.
37       * @param source The (read-only) source object that should be merged into the target object, may be
38       *            <code>null</code>.
39       * @param sourceDominant A flag indicating whether either the target object or the source object provides the
40       *            dominant data.
41       * @param hints A set of key-value pairs that customized merger implementations can use to carry domain-specific
42       *            information along, may be <code>null</code>.
43       */
44      public void merge(
45              org.apache.maven.model.Model target,
46              org.apache.maven.model.Model source,
47              boolean sourceDominant,
48              Map<?, ?> hints) {
49          Objects.requireNonNull(target, "target cannot be null");
50          if (source == null) {
51              return;
52          }
53          target.update(merge(target.getDelegate(), source.getDelegate(), sourceDominant, hints));
54      }
55  }