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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.eclipse.aether.internal.impl.version;
20  
21  import javax.inject.Inject;
22  import javax.inject.Named;
23  import javax.inject.Singleton;
24  
25  import java.util.Collections;
26  import java.util.Map;
27  
28  import org.eclipse.aether.ConfigurationProperties;
29  import org.eclipse.aether.RepositorySystemSession;
30  import org.eclipse.aether.spi.version.VersionSchemeSelector;
31  import org.eclipse.aether.util.ConfigUtils;
32  import org.eclipse.aether.version.VersionScheme;
33  
34  import static java.util.Objects.requireNonNull;
35  
36  /**
37   * Default implementation.
38   *
39   * @since 2.0.0
40   */
41  @Singleton
42  @Named
43  public class DefaultVersionSchemeSelector implements VersionSchemeSelector {
44      static final String CONFIG_PROPS_PREFIX = ConfigurationProperties.PREFIX_AETHER + "versionScheme.";
45  
46      /**
47       * The name of the version scheme to be used in session.
48       *
49       * @configurationSource {@link RepositorySystemSession#getConfigProperties()}
50       * @configurationType {@link java.lang.String}
51       * @configurationDefaultValue {@link #DEFAULT_VERSION_SCHEME_NAME}
52       */
53      public static final String CONFIG_PROP_VERSION_SCHEME_NAME = CONFIG_PROPS_PREFIX + "name";
54  
55      public static final String DEFAULT_VERSION_SCHEME_NAME = GenericVersionSchemeProvider.NAME;
56  
57      private final Map<String, VersionScheme> versionSchemes;
58  
59      @Inject
60      public DefaultVersionSchemeSelector(Map<String, VersionScheme> versionSchemes) {
61          this.versionSchemes = requireNonNull(versionSchemes);
62      }
63  
64      @Override
65      public VersionScheme selectVersionScheme(String schemeName) {
66          requireNonNull(schemeName, "null schemeName");
67          VersionScheme versionScheme = versionSchemes.get(schemeName);
68          if (versionScheme == null) {
69              throw new IllegalArgumentException("scheme not supported");
70          }
71          return versionScheme;
72      }
73  
74      @Override
75      public VersionScheme selectVersionScheme(RepositorySystemSession session) {
76          return selectVersionScheme(
77                  ConfigUtils.getString(session, DEFAULT_VERSION_SCHEME_NAME, CONFIG_PROP_VERSION_SCHEME_NAME));
78      }
79  
80      @Override
81      public Map<String, VersionScheme> getVersionSchemes() {
82          return Collections.unmodifiableMap(versionSchemes);
83      }
84  }