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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.plugin.internal;
20  
21  import javax.inject.Inject;
22  import javax.inject.Named;
23  import javax.inject.Singleton;
24  import org.apache.maven.plugin.MavenPluginPrerequisitesChecker;
25  import org.apache.maven.plugin.descriptor.PluginDescriptor;
26  import org.apache.maven.rtinfo.RuntimeInformation;
27  import org.codehaus.plexus.util.StringUtils;
28  import org.slf4j.Logger;
29  import org.slf4j.LoggerFactory;
30  
31  @Named
32  @Singleton
33  public class MavenPluginMavenPrerequisiteChecker implements MavenPluginPrerequisitesChecker {
34      private final Logger logger = LoggerFactory.getLogger(getClass());
35      private final RuntimeInformation runtimeInformation;
36  
37      @Inject
38      public MavenPluginMavenPrerequisiteChecker(RuntimeInformation runtimeInformation) {
39          super();
40          this.runtimeInformation = runtimeInformation;
41      }
42  
43      @Override
44      public void accept(PluginDescriptor pluginDescriptor) {
45          String requiredMavenVersion = pluginDescriptor.getRequiredMavenVersion();
46          if (StringUtils.isNotBlank(requiredMavenVersion)) {
47              boolean isRequirementMet = false;
48              try {
49                  isRequirementMet = runtimeInformation.isMavenVersion(requiredMavenVersion);
50              } catch (IllegalArgumentException e) {
51                  logger.warn(
52                          "Could not verify plugin's Maven prerequisite as an invalid version is given in "
53                                  + requiredMavenVersion,
54                          e);
55                  return;
56              }
57              if (!isRequirementMet) {
58                  throw new IllegalStateException("Required Maven version " + requiredMavenVersion
59                          + " is not met by current version " + runtimeInformation.getMavenVersion());
60              }
61          }
62      }
63  }