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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.profile;
20  
21  import javax.inject.Named;
22  import javax.inject.Singleton;
23  
24  import java.util.ArrayList;
25  import java.util.Collections;
26  import java.util.LinkedHashMap;
27  import java.util.List;
28  import java.util.Map;
29  
30  import org.apache.maven.model.Build;
31  import org.apache.maven.model.BuildBase;
32  import org.apache.maven.model.Model;
33  import org.apache.maven.model.ModelBase;
34  import org.apache.maven.model.Plugin;
35  import org.apache.maven.model.PluginContainer;
36  import org.apache.maven.model.PluginExecution;
37  import org.apache.maven.model.Profile;
38  import org.apache.maven.model.ReportPlugin;
39  import org.apache.maven.model.ReportSet;
40  import org.apache.maven.model.Reporting;
41  import org.apache.maven.model.building.ModelBuildingRequest;
42  import org.apache.maven.model.building.ModelProblemCollector;
43  import org.apache.maven.model.merge.MavenModelMerger;
44  
45  /**
46   * Handles profile injection into the model.
47   *
48   * @author Benjamin Bentmann
49   */
50  @Named
51  @Singleton
52  @SuppressWarnings({"checkstyle:methodname"})
53  public class DefaultProfileInjector implements ProfileInjector {
54  
55      private ProfileModelMerger merger = new ProfileModelMerger();
56  
57      @Override
58      public void injectProfile(
59              Model model, Profile profile, ModelBuildingRequest request, ModelProblemCollector problems) {
60          if (profile != null) {
61              merger.mergeModelBase(model, profile);
62  
63              if (profile.getBuild() != null) {
64                  if (model.getBuild() == null) {
65                      model.setBuild(new Build());
66                  }
67                  merger.mergeBuildBase(model.getBuild(), profile.getBuild());
68              }
69          }
70      }
71  
72      /**
73       * ProfileModelMerger
74       */
75      protected static class ProfileModelMerger extends MavenModelMerger {
76  
77          public void mergeModelBase(ModelBase target, ModelBase source) {
78              mergeModelBase(target, source, true, Collections.emptyMap());
79          }
80  
81          public void mergeBuildBase(BuildBase target, BuildBase source) {
82              mergeBuildBase(target, source, true, Collections.emptyMap());
83          }
84  
85          @Override
86          protected void mergePluginContainer_Plugins(
87                  PluginContainer target, PluginContainer source, boolean sourceDominant, Map<Object, Object> context) {
88              List<Plugin> src = source.getPlugins();
89              if (!src.isEmpty()) {
90                  List<Plugin> tgt = target.getPlugins();
91                  Map<Object, Plugin> master = new LinkedHashMap<>(tgt.size() * 2);
92  
93                  for (Plugin element : tgt) {
94                      Object key = getPluginKey(element);
95                      master.put(key, element);
96                  }
97  
98                  Map<Object, List<Plugin>> predecessors = new LinkedHashMap<>();
99                  List<Plugin> pending = new ArrayList<>();
100                 for (Plugin element : src) {
101                     Object key = getPluginKey(element);
102                     Plugin existing = master.get(key);
103                     if (existing != null) {
104                         mergePlugin(existing, element, sourceDominant, context);
105 
106                         if (!pending.isEmpty()) {
107                             predecessors.put(key, pending);
108                             pending = new ArrayList<>();
109                         }
110                     } else {
111                         pending.add(element);
112                     }
113                 }
114 
115                 List<Plugin> result = new ArrayList<>(src.size() + tgt.size());
116                 for (Map.Entry<Object, Plugin> entry : master.entrySet()) {
117                     List<Plugin> pre = predecessors.get(entry.getKey());
118                     if (pre != null) {
119                         result.addAll(pre);
120                     }
121                     result.add(entry.getValue());
122                 }
123                 result.addAll(pending);
124 
125                 target.setPlugins(result);
126             }
127         }
128 
129         @Override
130         protected void mergePlugin_Executions(
131                 Plugin target, Plugin source, boolean sourceDominant, Map<Object, Object> context) {
132             List<PluginExecution> src = source.getExecutions();
133             if (!src.isEmpty()) {
134                 List<PluginExecution> tgt = target.getExecutions();
135                 Map<Object, PluginExecution> merged = new LinkedHashMap<>((src.size() + tgt.size()) * 2);
136 
137                 for (PluginExecution element : tgt) {
138                     Object key = getPluginExecutionKey(element);
139                     merged.put(key, element);
140                 }
141 
142                 for (PluginExecution element : src) {
143                     Object key = getPluginExecutionKey(element);
144                     PluginExecution existing = merged.get(key);
145                     if (existing != null) {
146                         mergePluginExecution(existing, element, sourceDominant, context);
147                     } else {
148                         merged.put(key, element);
149                     }
150                 }
151 
152                 target.setExecutions(new ArrayList<>(merged.values()));
153             }
154         }
155 
156         @Override
157         protected void mergeReporting_Plugins(
158                 Reporting target, Reporting source, boolean sourceDominant, Map<Object, Object> context) {
159             List<ReportPlugin> src = source.getPlugins();
160             if (!src.isEmpty()) {
161                 List<ReportPlugin> tgt = target.getPlugins();
162                 Map<Object, ReportPlugin> merged = new LinkedHashMap<>((src.size() + tgt.size()) * 2);
163 
164                 for (ReportPlugin element : tgt) {
165                     Object key = getReportPluginKey(element);
166                     merged.put(key, element);
167                 }
168 
169                 for (ReportPlugin element : src) {
170                     Object key = getReportPluginKey(element);
171                     ReportPlugin existing = merged.get(key);
172                     if (existing == null) {
173                         merged.put(key, element);
174                     } else {
175                         mergeReportPlugin(existing, element, sourceDominant, context);
176                     }
177                 }
178 
179                 target.setPlugins(new ArrayList<>(merged.values()));
180             }
181         }
182 
183         @Override
184         protected void mergeReportPlugin_ReportSets(
185                 ReportPlugin target, ReportPlugin source, boolean sourceDominant, Map<Object, Object> context) {
186             List<ReportSet> src = source.getReportSets();
187             if (!src.isEmpty()) {
188                 List<ReportSet> tgt = target.getReportSets();
189                 Map<Object, ReportSet> merged = new LinkedHashMap<>((src.size() + tgt.size()) * 2);
190 
191                 for (ReportSet element : tgt) {
192                     Object key = getReportSetKey(element);
193                     merged.put(key, element);
194                 }
195 
196                 for (ReportSet element : src) {
197                     Object key = getReportSetKey(element);
198                     ReportSet existing = merged.get(key);
199                     if (existing != null) {
200                         mergeReportSet(existing, element, sourceDominant, context);
201                     } else {
202                         merged.put(key, element);
203                     }
204                 }
205 
206                 target.setReportSets(new ArrayList<>(merged.values()));
207             }
208         }
209     }
210 }