View Javadoc
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;
20  
21  import java.util.Collections;
22  import java.util.Map;
23  import java.util.stream.Collectors;
24  import java.util.stream.Stream;
25  
26  import org.apache.maven.api.annotations.Experimental;
27  import org.apache.maven.api.annotations.Immutable;
28  import org.apache.maven.api.annotations.Nonnull;
29  
30  /**
31   * Indicates when the dependency will be used.
32   * For example, it may be at compile time only, at runtime, or at test time.
33   * For a given dependency, the scope is directly derived from the
34   * {@link org.apache.maven.api.model.Dependency#getScope()} and will be used when using {@link PathScope}
35   * and the {@link org.apache.maven.api.services.DependencyResolver}.
36   *
37   * @since 4.0.0
38   * @see org.apache.maven.api.model.Dependency#getScope()
39   * @see org.apache.maven.api.services.DependencyResolver
40   */
41  @Experimental
42  @Immutable
43  public enum DependencyScope {
44  
45      /**
46       * None. Allows you to declare dependencies (for example to alter reactor build order) but in reality dependencies
47       * in this scope are not part of any path scope.
48       */
49      NONE("none", false),
50  
51      /**
52       * Undefined. When no scope is explicitly given, UNDEFINED will be used, but its meaning will depend on
53       * whether the DependencyCoordinates is used in dependency management, in which case it means the scope is not
54       * explicitly managed by this managed dependency, or as a real dependency, in which case, the scope
55       * will default to {@link #COMPILE}.
56       */
57      UNDEFINED("", false),
58  
59      /**
60       * Compile only.
61       */
62      COMPILE_ONLY("compile-only", false),
63  
64      /**
65       * Compile, runtime and test.
66       */
67      COMPILE("compile", true),
68  
69      /**
70       * Runtime and test.
71       */
72      RUNTIME("runtime", true),
73  
74      /**
75       * Provided.
76       */
77      PROVIDED("provided", false),
78  
79      /**
80       * Test compile only.
81       */
82      TEST_ONLY("test-only", false),
83  
84      /**
85       * Test compile and test runtime.
86       */
87      TEST("test", false),
88  
89      /**
90       * Test runtime.
91       */
92      TEST_RUNTIME("test-runtime", false),
93  
94      /**
95       * System scope.
96       */
97      SYSTEM("system", false);
98  
99      private static final Map<String, DependencyScope> IDS = Collections.unmodifiableMap(
100             Stream.of(DependencyScope.values()).collect(Collectors.toMap(s -> s.id, s -> s)));
101 
102     public static DependencyScope forId(String id) {
103         return IDS.get(id);
104     }
105 
106     private final String id;
107     private final boolean transitive;
108 
109     DependencyScope(String id, boolean transitive) {
110         this.id = id;
111         this.transitive = transitive;
112     }
113 
114     /**
115      * The {@code id} uniquely represents a value for this extensible enum.
116      * This id should be used to compute the equality and hash code for the instance.
117      *
118      * @return the id
119      */
120     @Nonnull
121     public String id() {
122         return id;
123     }
124 
125     public boolean isTransitive() {
126         return transitive;
127     }
128 
129     public boolean is(String id) {
130         return id().equals(id);
131     }
132 }