1 package org.eclipse.aether.internal.impl;
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22 import java.util.ArrayList;
23 import java.util.Collection;
24 import java.util.List;
25 import static java.util.Objects.requireNonNull;
26 import java.util.Set;
27
28 import javax.inject.Inject;
29 import javax.inject.Named;
30
31 import org.eclipse.aether.RepositorySystemSession;
32 import org.eclipse.aether.impl.LocalRepositoryProvider;
33 import org.eclipse.aether.repository.LocalRepository;
34 import org.eclipse.aether.repository.LocalRepositoryManager;
35 import org.eclipse.aether.repository.NoLocalRepositoryManagerException;
36 import org.eclipse.aether.spi.localrepo.LocalRepositoryManagerFactory;
37 import org.eclipse.aether.spi.locator.Service;
38 import org.eclipse.aether.spi.locator.ServiceLocator;
39 import org.slf4j.Logger;
40 import org.slf4j.LoggerFactory;
41
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43
44 @Named
45 public class DefaultLocalRepositoryProvider
46 implements LocalRepositoryProvider, Service
47 {
48
49 private static final Logger LOGGER = LoggerFactory.getLogger( DefaultLocalRepositoryProvider.class );
50
51 private Collection<LocalRepositoryManagerFactory> managerFactories = new ArrayList<>();
52
53 public DefaultLocalRepositoryProvider()
54 {
55
56 }
57
58 @Inject
59 DefaultLocalRepositoryProvider( Set<LocalRepositoryManagerFactory> factories )
60 {
61 setLocalRepositoryManagerFactories( factories );
62 }
63
64 public void initService( ServiceLocator locator )
65 {
66 setLocalRepositoryManagerFactories( locator.getServices( LocalRepositoryManagerFactory.class ) );
67 }
68
69 public DefaultLocalRepositoryProvider addLocalRepositoryManagerFactory( LocalRepositoryManagerFactory factory )
70 {
71 managerFactories.add( requireNonNull( factory, "local repository manager factory cannot be null" ) );
72 return this;
73 }
74
75 public DefaultLocalRepositoryProvider setLocalRepositoryManagerFactories(
76 Collection<LocalRepositoryManagerFactory> factories )
77 {
78 if ( factories == null )
79 {
80 managerFactories = new ArrayList<>( 2 );
81 }
82 else
83 {
84 managerFactories = factories;
85 }
86 return this;
87 }
88
89 public LocalRepositoryManager newLocalRepositoryManager( RepositorySystemSession session,
90 LocalRepository repository )
91 throws NoLocalRepositoryManagerException
92 {
93 PrioritizedComponents<LocalRepositoryManagerFactory> factories = new PrioritizedComponents<>( session );
94 for ( LocalRepositoryManagerFactory factory : this.managerFactories )
95 {
96 factories.add( factory, factory.getPriority() );
97 }
98
99 List<NoLocalRepositoryManagerException> errors = new ArrayList<>();
100 for ( PrioritizedComponent<LocalRepositoryManagerFactory> factory : factories.getEnabled() )
101 {
102 try
103 {
104 LocalRepositoryManager manager = factory.getComponent().newInstance( session, repository );
105
106 if ( LOGGER.isDebugEnabled() )
107 {
108 StringBuilder buffer = new StringBuilder( 256 );
109 buffer.append( "Using manager " ).append( manager.getClass().getSimpleName() );
110 Utils.appendClassLoader( buffer, manager );
111 buffer.append( " with priority " ).append( factory.getPriority() );
112 buffer.append( " for " ).append( repository.getBasedir() );
113
114 LOGGER.debug( buffer.toString() );
115 }
116
117 return manager;
118 }
119 catch ( NoLocalRepositoryManagerException e )
120 {
121
122 errors.add( e );
123 }
124 }
125 if ( LOGGER.isDebugEnabled() && errors.size() > 1 )
126 {
127 for ( Exception e : errors )
128 {
129 LOGGER.debug( "Could not obtain local repository manager for {}", repository, e );
130 }
131 }
132
133 StringBuilder buffer = new StringBuilder( 256 );
134 if ( factories.isEmpty() )
135 {
136 buffer.append( "No local repository managers registered" );
137 }
138 else
139 {
140 buffer.append( "Cannot access " ).append( repository.getBasedir() );
141 buffer.append( " with type " ).append( repository.getContentType() );
142 buffer.append( " using the available factories " );
143 factories.list( buffer );
144 }
145
146 throw new NoLocalRepositoryManagerException( repository, buffer.toString(), errors.size() == 1 ? errors.get( 0 )
147 : null );
148 }
149
150 }