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