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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.api.feature;
20  
21  import java.util.Map;
22  import java.util.Properties;
23  
24  import org.apache.maven.api.Constants;
25  import org.apache.maven.api.annotations.Nullable;
26  
27  /**
28   * Centralized class for Maven Core feature information.
29   * Features configured are supposed to be final in a given maven session.
30   *
31   * @since 4.0.0
32   */
33  public final class Features {
34  
35      private Features() {}
36  
37      /**
38       * Check if the consumer POM feature is active.
39       */
40      public static boolean consumerPom(@Nullable Properties userProperties) {
41          return doGet(userProperties, Constants.MAVEN_CONSUMER_POM, true);
42      }
43  
44      /**
45       * Check if the consumer POM feature is active.
46       */
47      public static boolean consumerPom(@Nullable Map<String, String> userProperties, boolean def) {
48          return doGet(userProperties, Constants.MAVEN_CONSUMER_POM, def);
49      }
50  
51      private static boolean doGet(Properties userProperties, String key, boolean def) {
52          return doGet(userProperties != null ? userProperties.get(key) : null, def);
53      }
54  
55      private static boolean doGet(Map<String, ?> userProperties, String key, boolean def) {
56          return doGet(userProperties != null ? userProperties.get(key) : null, def);
57      }
58  
59      private static boolean doGet(Object val, boolean def) {
60          if (val instanceof Boolean) {
61              return (Boolean) val;
62          } else if (val != null) {
63              return Boolean.parseBoolean(val.toString());
64          } else {
65              return def;
66          }
67      }
68  }