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1   package org.eclipse.aether.internal.impl;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   * 
12   *  http://www.apache.org/licenses/LICENSE-2.0
13   * 
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import javax.inject.Named;
23  
24  import org.eclipse.aether.RepositorySystemSession;
25  import org.eclipse.aether.repository.LocalRepository;
26  import org.eclipse.aether.repository.LocalRepositoryManager;
27  import org.eclipse.aether.repository.NoLocalRepositoryManagerException;
28  import org.eclipse.aether.spi.localrepo.LocalRepositoryManagerFactory;
29  
30  /**
31   * Creates enhanced local repository managers for repository types {@code "default"} or {@code "" (automatic)}. Enhanced
32   * local repository manager is built upon the classical Maven 2.0 local repository structure but additionally keeps
33   * track of from what repositories a cached artifact was resolved. Resolution of locally cached artifacts will be
34   * rejected in case the current resolution request does not match the known source repositories of an artifact, thereby
35   * emulating physically separated artifact caches per remote repository.
36   */
37  @Named( "enhanced" )
38  public class EnhancedLocalRepositoryManagerFactory
39      implements LocalRepositoryManagerFactory
40  {
41      private float priority = 10.0f;
42  
43      public EnhancedLocalRepositoryManagerFactory()
44      {
45          // enable no-arg constructor
46      }
47  
48      public LocalRepositoryManager newInstance( RepositorySystemSession session, LocalRepository repository )
49          throws NoLocalRepositoryManagerException
50      {
51          if ( "".equals( repository.getContentType() ) || "default".equals( repository.getContentType() ) )
52          {
53              return new EnhancedLocalRepositoryManager( repository.getBasedir(), session );
54          }
55          else
56          {
57              throw new NoLocalRepositoryManagerException( repository );
58          }
59      }
60  
61      public float getPriority()
62      {
63          return priority;
64      }
65  
66      /**
67       * Sets the priority of this component.
68       * 
69       * @param priority The priority.
70       * @return This component for chaining, never {@code null}.
71       */
72      public EnhancedLocalRepositoryManagerFactory setPriority( float priority )
73      {
74          this.priority = priority;
75          return this;
76      }
77  
78  }