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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.impl.guice;
20  
21  import javax.inject.Named;
22  import javax.inject.Singleton;
23  
24  import java.util.Collections;
25  import java.util.HashMap;
26  import java.util.HashSet;
27  import java.util.Map;
28  import java.util.Set;
29  
30  import com.google.inject.AbstractModule;
31  import com.google.inject.Provides;
32  import com.google.inject.name.Names;
33  import org.eclipse.aether.RepositoryListener;
34  import org.eclipse.aether.RepositorySystem;
35  import org.eclipse.aether.impl.ArtifactResolver;
36  import org.eclipse.aether.impl.DependencyCollector;
37  import org.eclipse.aether.impl.Deployer;
38  import org.eclipse.aether.impl.Installer;
39  import org.eclipse.aether.impl.LocalRepositoryProvider;
40  import org.eclipse.aether.impl.MetadataResolver;
41  import org.eclipse.aether.impl.OfflineController;
42  import org.eclipse.aether.impl.RemoteRepositoryFilterManager;
43  import org.eclipse.aether.impl.RemoteRepositoryManager;
44  import org.eclipse.aether.impl.RepositoryConnectorProvider;
45  import org.eclipse.aether.impl.RepositoryEventDispatcher;
46  import org.eclipse.aether.impl.RepositorySystemLifecycle;
47  import org.eclipse.aether.impl.UpdateCheckManager;
48  import org.eclipse.aether.impl.UpdatePolicyAnalyzer;
49  import org.eclipse.aether.internal.impl.DefaultArtifactResolver;
50  import org.eclipse.aether.internal.impl.DefaultChecksumPolicyProvider;
51  import org.eclipse.aether.internal.impl.DefaultDeployer;
52  import org.eclipse.aether.internal.impl.DefaultFileProcessor;
53  import org.eclipse.aether.internal.impl.DefaultInstaller;
54  import org.eclipse.aether.internal.impl.DefaultLocalPathComposer;
55  import org.eclipse.aether.internal.impl.DefaultLocalPathPrefixComposerFactory;
56  import org.eclipse.aether.internal.impl.DefaultLocalRepositoryProvider;
57  import org.eclipse.aether.internal.impl.DefaultMetadataResolver;
58  import org.eclipse.aether.internal.impl.DefaultOfflineController;
59  import org.eclipse.aether.internal.impl.DefaultRemoteRepositoryManager;
60  import org.eclipse.aether.internal.impl.DefaultRepositoryConnectorProvider;
61  import org.eclipse.aether.internal.impl.DefaultRepositoryEventDispatcher;
62  import org.eclipse.aether.internal.impl.DefaultRepositoryLayoutProvider;
63  import org.eclipse.aether.internal.impl.DefaultRepositorySystem;
64  import org.eclipse.aether.internal.impl.DefaultRepositorySystemLifecycle;
65  import org.eclipse.aether.internal.impl.DefaultTrackingFileManager;
66  import org.eclipse.aether.internal.impl.DefaultTransporterProvider;
67  import org.eclipse.aether.internal.impl.DefaultUpdateCheckManager;
68  import org.eclipse.aether.internal.impl.DefaultUpdatePolicyAnalyzer;
69  import org.eclipse.aether.internal.impl.EnhancedLocalRepositoryManagerFactory;
70  import org.eclipse.aether.internal.impl.LocalPathComposer;
71  import org.eclipse.aether.internal.impl.LocalPathPrefixComposerFactory;
72  import org.eclipse.aether.internal.impl.Maven2RepositoryLayoutFactory;
73  import org.eclipse.aether.internal.impl.SimpleLocalRepositoryManagerFactory;
74  import org.eclipse.aether.internal.impl.TrackingFileManager;
75  import org.eclipse.aether.internal.impl.checksum.DefaultChecksumAlgorithmFactorySelector;
76  import org.eclipse.aether.internal.impl.checksum.Md5ChecksumAlgorithmFactory;
77  import org.eclipse.aether.internal.impl.checksum.Sha1ChecksumAlgorithmFactory;
78  import org.eclipse.aether.internal.impl.checksum.Sha256ChecksumAlgorithmFactory;
79  import org.eclipse.aether.internal.impl.checksum.Sha512ChecksumAlgorithmFactory;
80  import org.eclipse.aether.internal.impl.checksum.SparseDirectoryTrustedChecksumsSource;
81  import org.eclipse.aether.internal.impl.checksum.SummaryFileTrustedChecksumsSource;
82  import org.eclipse.aether.internal.impl.checksum.TrustedToProvidedChecksumsSourceAdapter;
83  import org.eclipse.aether.internal.impl.collect.DefaultDependencyCollector;
84  import org.eclipse.aether.internal.impl.collect.DependencyCollectorDelegate;
85  import org.eclipse.aether.internal.impl.collect.bf.BfDependencyCollector;
86  import org.eclipse.aether.internal.impl.collect.df.DfDependencyCollector;
87  import org.eclipse.aether.internal.impl.filter.DefaultRemoteRepositoryFilterManager;
88  import org.eclipse.aether.internal.impl.filter.GroupIdRemoteRepositoryFilterSource;
89  import org.eclipse.aether.internal.impl.filter.PrefixesRemoteRepositoryFilterSource;
90  import org.eclipse.aether.internal.impl.resolution.TrustedChecksumsArtifactResolverPostProcessor;
91  import org.eclipse.aether.internal.impl.slf4j.Slf4jLoggerFactory;
92  import org.eclipse.aether.internal.impl.synccontext.DefaultSyncContextFactory;
93  import org.eclipse.aether.internal.impl.synccontext.named.NameMapper;
94  import org.eclipse.aether.internal.impl.synccontext.named.NameMappers;
95  import org.eclipse.aether.internal.impl.synccontext.named.NamedLockFactoryAdapterFactory;
96  import org.eclipse.aether.internal.impl.synccontext.named.NamedLockFactoryAdapterFactoryImpl;
97  import org.eclipse.aether.internal.impl.synccontext.named.providers.DiscriminatingNameMapperProvider;
98  import org.eclipse.aether.internal.impl.synccontext.named.providers.FileGAVNameMapperProvider;
99  import org.eclipse.aether.internal.impl.synccontext.named.providers.FileHashingGAVNameMapperProvider;
100 import org.eclipse.aether.internal.impl.synccontext.named.providers.GAVNameMapperProvider;
101 import org.eclipse.aether.internal.impl.synccontext.named.providers.StaticNameMapperProvider;
102 import org.eclipse.aether.named.NamedLockFactory;
103 import org.eclipse.aether.named.providers.FileLockNamedLockFactory;
104 import org.eclipse.aether.named.providers.LocalReadWriteLockNamedLockFactory;
105 import org.eclipse.aether.named.providers.LocalSemaphoreNamedLockFactory;
106 import org.eclipse.aether.named.providers.NoopNamedLockFactory;
107 import org.eclipse.aether.spi.checksums.TrustedChecksumsSource;
108 import org.eclipse.aether.spi.connector.checksum.ChecksumAlgorithmFactory;
109 import org.eclipse.aether.spi.connector.checksum.ChecksumAlgorithmFactorySelector;
110 import org.eclipse.aether.spi.connector.checksum.ChecksumPolicyProvider;
111 import org.eclipse.aether.spi.connector.checksum.ProvidedChecksumsSource;
112 import org.eclipse.aether.spi.connector.filter.RemoteRepositoryFilterSource;
113 import org.eclipse.aether.spi.connector.layout.RepositoryLayoutFactory;
114 import org.eclipse.aether.spi.connector.layout.RepositoryLayoutProvider;
115 import org.eclipse.aether.spi.connector.transport.TransporterProvider;
116 import org.eclipse.aether.spi.io.FileProcessor;
117 import org.eclipse.aether.spi.localrepo.LocalRepositoryManagerFactory;
118 import org.eclipse.aether.spi.log.LoggerFactory;
119 import org.eclipse.aether.spi.resolution.ArtifactResolverPostProcessor;
120 import org.eclipse.aether.spi.synccontext.SyncContextFactory;
121 import org.slf4j.ILoggerFactory;
122 
123 /**
124  * A ready-made <a href="https://github.com/google/guice" target="_blank">Guice</a> module that sets up bindings
125  * for all components from this library. To acquire a complete repository system, clients need to bind an artifact
126  * descriptor reader, a version resolver, a version range resolver, zero or more metadata generator factories, some
127  * repository connector and transporter factories to access remote repositories.
128  *
129  * @noextend This class must not be extended by clients and will eventually be marked {@code final} without prior
130  * notice.
131  */
132 public class AetherModule extends AbstractModule {
133 
134     /**
135      * Creates a new instance of this Guice module, typically for invoking
136      * {@link com.google.inject.Binder#install(com.google.inject.Module)}.
137      */
138     public AetherModule() {}
139 
140     /**
141      * Configures Guice with bindings for Aether components provided by this library.
142      */
143     // CHECKSTYLE_OFF: MethodLength
144     @Override
145     protected void configure() {
146         bind(RepositorySystem.class) //
147                 .to(DefaultRepositorySystem.class)
148                 .in(Singleton.class);
149         bind(ArtifactResolver.class) //
150                 .to(DefaultArtifactResolver.class)
151                 .in(Singleton.class);
152 
153         bind(DependencyCollector.class) //
154                 .to(DefaultDependencyCollector.class)
155                 .in(Singleton.class);
156         bind(DependencyCollectorDelegate.class)
157                 .annotatedWith(Names.named(BfDependencyCollector.NAME))
158                 .to(BfDependencyCollector.class)
159                 .in(Singleton.class);
160         bind(DependencyCollectorDelegate.class)
161                 .annotatedWith(Names.named(DfDependencyCollector.NAME))
162                 .to(DfDependencyCollector.class)
163                 .in(Singleton.class);
164 
165         bind(Deployer.class) //
166                 .to(DefaultDeployer.class)
167                 .in(Singleton.class);
168         bind(Installer.class) //
169                 .to(DefaultInstaller.class)
170                 .in(Singleton.class);
171         bind(MetadataResolver.class) //
172                 .to(DefaultMetadataResolver.class)
173                 .in(Singleton.class);
174         bind(RepositoryLayoutProvider.class) //
175                 .to(DefaultRepositoryLayoutProvider.class)
176                 .in(Singleton.class);
177         bind(RepositoryLayoutFactory.class)
178                 .annotatedWith(Names.named("maven2")) //
179                 .to(Maven2RepositoryLayoutFactory.class)
180                 .in(Singleton.class);
181         bind(TransporterProvider.class) //
182                 .to(DefaultTransporterProvider.class)
183                 .in(Singleton.class);
184         bind(ChecksumPolicyProvider.class) //
185                 .to(DefaultChecksumPolicyProvider.class)
186                 .in(Singleton.class);
187         bind(RepositoryConnectorProvider.class) //
188                 .to(DefaultRepositoryConnectorProvider.class)
189                 .in(Singleton.class);
190         bind(RemoteRepositoryManager.class) //
191                 .to(DefaultRemoteRepositoryManager.class)
192                 .in(Singleton.class);
193         bind(UpdateCheckManager.class) //
194                 .to(DefaultUpdateCheckManager.class)
195                 .in(Singleton.class);
196         bind(UpdatePolicyAnalyzer.class) //
197                 .to(DefaultUpdatePolicyAnalyzer.class)
198                 .in(Singleton.class);
199         bind(FileProcessor.class) //
200                 .to(DefaultFileProcessor.class)
201                 .in(Singleton.class);
202         bind(RepositoryEventDispatcher.class) //
203                 .to(DefaultRepositoryEventDispatcher.class)
204                 .in(Singleton.class);
205         bind(OfflineController.class) //
206                 .to(DefaultOfflineController.class)
207                 .in(Singleton.class);
208 
209         bind(LocalPathComposer.class).to(DefaultLocalPathComposer.class).in(Singleton.class);
210         bind(LocalPathPrefixComposerFactory.class)
211                 .to(DefaultLocalPathPrefixComposerFactory.class)
212                 .in(Singleton.class);
213 
214         bind(LocalRepositoryProvider.class) //
215                 .to(DefaultLocalRepositoryProvider.class)
216                 .in(Singleton.class);
217         bind(LocalRepositoryManagerFactory.class)
218                 .annotatedWith(Names.named("simple")) //
219                 .to(SimpleLocalRepositoryManagerFactory.class)
220                 .in(Singleton.class);
221         bind(LocalRepositoryManagerFactory.class)
222                 .annotatedWith(Names.named("enhanced")) //
223                 .to(EnhancedLocalRepositoryManagerFactory.class)
224                 .in(Singleton.class);
225         bind(TrackingFileManager.class).to(DefaultTrackingFileManager.class).in(Singleton.class);
226 
227         bind(ProvidedChecksumsSource.class)
228                 .annotatedWith(Names.named(TrustedToProvidedChecksumsSourceAdapter.NAME))
229                 .to(TrustedToProvidedChecksumsSourceAdapter.class)
230                 .in(Singleton.class);
231 
232         bind(TrustedChecksumsSource.class)
233                 .annotatedWith(Names.named(SparseDirectoryTrustedChecksumsSource.NAME))
234                 .to(SparseDirectoryTrustedChecksumsSource.class)
235                 .in(Singleton.class);
236         bind(TrustedChecksumsSource.class)
237                 .annotatedWith(Names.named(SummaryFileTrustedChecksumsSource.NAME))
238                 .to(SummaryFileTrustedChecksumsSource.class)
239                 .in(Singleton.class);
240 
241         bind(ArtifactResolverPostProcessor.class)
242                 .annotatedWith(Names.named(TrustedChecksumsArtifactResolverPostProcessor.NAME))
243                 .to(TrustedChecksumsArtifactResolverPostProcessor.class)
244                 .in(Singleton.class);
245 
246         bind(ChecksumAlgorithmFactory.class)
247                 .annotatedWith(Names.named(Md5ChecksumAlgorithmFactory.NAME))
248                 .to(Md5ChecksumAlgorithmFactory.class);
249         bind(ChecksumAlgorithmFactory.class)
250                 .annotatedWith(Names.named(Sha1ChecksumAlgorithmFactory.NAME))
251                 .to(Sha1ChecksumAlgorithmFactory.class);
252         bind(ChecksumAlgorithmFactory.class)
253                 .annotatedWith(Names.named(Sha256ChecksumAlgorithmFactory.NAME))
254                 .to(Sha256ChecksumAlgorithmFactory.class);
255         bind(ChecksumAlgorithmFactory.class)
256                 .annotatedWith(Names.named(Sha512ChecksumAlgorithmFactory.NAME))
257                 .to(Sha512ChecksumAlgorithmFactory.class);
258         bind(ChecksumAlgorithmFactorySelector.class)
259                 .to(DefaultChecksumAlgorithmFactorySelector.class)
260                 .in(Singleton.class);
261 
262         bind(RepositorySystemLifecycle.class)
263                 .to(DefaultRepositorySystemLifecycle.class)
264                 .in(Singleton.class);
265 
266         bind(NamedLockFactoryAdapterFactory.class)
267                 .to(NamedLockFactoryAdapterFactoryImpl.class)
268                 .in(Singleton.class);
269         bind(SyncContextFactory.class).to(DefaultSyncContextFactory.class).in(Singleton.class);
270         bind(org.eclipse.aether.impl.SyncContextFactory.class)
271                 .to(org.eclipse.aether.internal.impl.synccontext.legacy.DefaultSyncContextFactory.class)
272                 .in(Singleton.class);
273 
274         bind(NameMapper.class)
275                 .annotatedWith(Names.named(NameMappers.STATIC_NAME))
276                 .toProvider(StaticNameMapperProvider.class)
277                 .in(Singleton.class);
278         bind(NameMapper.class)
279                 .annotatedWith(Names.named(NameMappers.GAV_NAME))
280                 .toProvider(GAVNameMapperProvider.class)
281                 .in(Singleton.class);
282         bind(NameMapper.class)
283                 .annotatedWith(Names.named(NameMappers.DISCRIMINATING_NAME))
284                 .toProvider(DiscriminatingNameMapperProvider.class)
285                 .in(Singleton.class);
286         bind(NameMapper.class)
287                 .annotatedWith(Names.named(NameMappers.FILE_GAV_NAME))
288                 .toProvider(FileGAVNameMapperProvider.class)
289                 .in(Singleton.class);
290         bind(NameMapper.class)
291                 .annotatedWith(Names.named(NameMappers.FILE_HGAV_NAME))
292                 .toProvider(FileHashingGAVNameMapperProvider.class)
293                 .in(Singleton.class);
294 
295         bind(NamedLockFactory.class)
296                 .annotatedWith(Names.named(NoopNamedLockFactory.NAME))
297                 .to(NoopNamedLockFactory.class)
298                 .in(Singleton.class);
299         bind(NamedLockFactory.class)
300                 .annotatedWith(Names.named(LocalReadWriteLockNamedLockFactory.NAME))
301                 .to(LocalReadWriteLockNamedLockFactory.class)
302                 .in(Singleton.class);
303         bind(NamedLockFactory.class)
304                 .annotatedWith(Names.named(LocalSemaphoreNamedLockFactory.NAME))
305                 .to(LocalSemaphoreNamedLockFactory.class)
306                 .in(Singleton.class);
307         bind(NamedLockFactory.class)
308                 .annotatedWith(Names.named(FileLockNamedLockFactory.NAME))
309                 .to(FileLockNamedLockFactory.class)
310                 .in(Singleton.class);
311 
312         bind(RemoteRepositoryFilterManager.class)
313                 .to(DefaultRemoteRepositoryFilterManager.class)
314                 .in(Singleton.class);
315         bind(RemoteRepositoryFilterSource.class)
316                 .annotatedWith(Names.named(GroupIdRemoteRepositoryFilterSource.NAME))
317                 .to(GroupIdRemoteRepositoryFilterSource.class)
318                 .in(Singleton.class);
319         bind(RemoteRepositoryFilterSource.class)
320                 .annotatedWith(Names.named(PrefixesRemoteRepositoryFilterSource.NAME))
321                 .to(PrefixesRemoteRepositoryFilterSource.class)
322                 .in(Singleton.class);
323 
324         install(new Slf4jModule());
325     }
326 
327     @Provides
328     @Singleton
329     Map<String, RemoteRepositoryFilterSource> remoteRepositoryFilterSources(
330             @Named(GroupIdRemoteRepositoryFilterSource.NAME) RemoteRepositoryFilterSource groupId,
331             @Named(PrefixesRemoteRepositoryFilterSource.NAME) RemoteRepositoryFilterSource prefixes) {
332         Map<String, RemoteRepositoryFilterSource> result = new HashMap<>();
333         result.put(GroupIdRemoteRepositoryFilterSource.NAME, groupId);
334         result.put(PrefixesRemoteRepositoryFilterSource.NAME, prefixes);
335         return Collections.unmodifiableMap(result);
336     }
337 
338     @Provides
339     @Singleton
340     Map<String, ArtifactResolverPostProcessor> artifactResolverProcessors(
341             @Named(TrustedChecksumsArtifactResolverPostProcessor.NAME) ArtifactResolverPostProcessor trustedChecksums) {
342         Map<String, ArtifactResolverPostProcessor> result = new HashMap<>();
343         result.put(TrustedChecksumsArtifactResolverPostProcessor.NAME, trustedChecksums);
344         return Collections.unmodifiableMap(result);
345     }
346 
347     @Provides
348     @Singleton
349     Map<String, DependencyCollectorDelegate> dependencyCollectorDelegates(
350             @Named(BfDependencyCollector.NAME) DependencyCollectorDelegate bf,
351             @Named(DfDependencyCollector.NAME) DependencyCollectorDelegate df) {
352         Map<String, DependencyCollectorDelegate> result = new HashMap<>();
353         result.put(BfDependencyCollector.NAME, bf);
354         result.put(DfDependencyCollector.NAME, df);
355         return Collections.unmodifiableMap(result);
356     }
357 
358     @Provides
359     @Singleton
360     Map<String, ProvidedChecksumsSource> providedChecksumSources(
361             @Named(TrustedToProvidedChecksumsSourceAdapter.NAME) ProvidedChecksumsSource adapter) {
362         Map<String, ProvidedChecksumsSource> result = new HashMap<>();
363         result.put(TrustedToProvidedChecksumsSourceAdapter.NAME, adapter);
364         return Collections.unmodifiableMap(result);
365     }
366 
367     @Provides
368     @Singleton
369     Map<String, TrustedChecksumsSource> trustedChecksumSources(
370             @Named(SparseDirectoryTrustedChecksumsSource.NAME) TrustedChecksumsSource sparse,
371             @Named(SummaryFileTrustedChecksumsSource.NAME) TrustedChecksumsSource compact) {
372         Map<String, TrustedChecksumsSource> result = new HashMap<>();
373         result.put(SparseDirectoryTrustedChecksumsSource.NAME, sparse);
374         result.put(SummaryFileTrustedChecksumsSource.NAME, compact);
375         return Collections.unmodifiableMap(result);
376     }
377 
378     @Provides
379     @Singleton
380     Map<String, ChecksumAlgorithmFactory> provideChecksumTypes(
381             @Named(Sha512ChecksumAlgorithmFactory.NAME) ChecksumAlgorithmFactory sha512,
382             @Named(Sha256ChecksumAlgorithmFactory.NAME) ChecksumAlgorithmFactory sha256,
383             @Named(Sha1ChecksumAlgorithmFactory.NAME) ChecksumAlgorithmFactory sha1,
384             @Named(Md5ChecksumAlgorithmFactory.NAME) ChecksumAlgorithmFactory md5) {
385         Map<String, ChecksumAlgorithmFactory> result = new HashMap<>();
386         result.put(Sha512ChecksumAlgorithmFactory.NAME, sha512);
387         result.put(Sha256ChecksumAlgorithmFactory.NAME, sha256);
388         result.put(Sha1ChecksumAlgorithmFactory.NAME, sha1);
389         result.put(Md5ChecksumAlgorithmFactory.NAME, md5);
390         return Collections.unmodifiableMap(result);
391     }
392 
393     @Provides
394     @Singleton
395     Map<String, NameMapper> provideNameMappers(
396             @Named(NameMappers.STATIC_NAME) NameMapper staticNameMapper,
397             @Named(NameMappers.GAV_NAME) NameMapper gavNameMapper,
398             @Named(NameMappers.DISCRIMINATING_NAME) NameMapper discriminatingNameMapper,
399             @Named(NameMappers.FILE_GAV_NAME) NameMapper fileGavNameMapper,
400             @Named(NameMappers.FILE_HGAV_NAME) NameMapper fileHashingGavNameMapper) {
401         Map<String, NameMapper> result = new HashMap<>();
402         result.put(NameMappers.STATIC_NAME, staticNameMapper);
403         result.put(NameMappers.GAV_NAME, gavNameMapper);
404         result.put(NameMappers.DISCRIMINATING_NAME, discriminatingNameMapper);
405         result.put(NameMappers.FILE_GAV_NAME, fileGavNameMapper);
406         result.put(NameMappers.FILE_HGAV_NAME, fileHashingGavNameMapper);
407         return Collections.unmodifiableMap(result);
408     }
409 
410     @Provides
411     @Singleton
412     Map<String, NamedLockFactory> provideNamedLockFactories(
413             @Named(LocalReadWriteLockNamedLockFactory.NAME) NamedLockFactory localRwLock,
414             @Named(LocalSemaphoreNamedLockFactory.NAME) NamedLockFactory localSemaphore,
415             @Named(FileLockNamedLockFactory.NAME) NamedLockFactory fileLockFactory) {
416         Map<String, NamedLockFactory> result = new HashMap<>();
417         result.put(LocalReadWriteLockNamedLockFactory.NAME, localRwLock);
418         result.put(LocalSemaphoreNamedLockFactory.NAME, localSemaphore);
419         result.put(FileLockNamedLockFactory.NAME, fileLockFactory);
420         return Collections.unmodifiableMap(result);
421     }
422 
423     @Provides
424     @Singleton
425     Set<LocalRepositoryManagerFactory> provideLocalRepositoryManagerFactories(
426             @Named("simple") LocalRepositoryManagerFactory simple,
427             @Named("enhanced") LocalRepositoryManagerFactory enhanced) {
428         Set<LocalRepositoryManagerFactory> result = new HashSet<>();
429         result.add(simple);
430         result.add(enhanced);
431         return Collections.unmodifiableSet(result);
432     }
433 
434     @Provides
435     @Singleton
436     Set<RepositoryLayoutFactory> provideRepositoryLayoutFactories(@Named("maven2") RepositoryLayoutFactory maven2) {
437         Set<RepositoryLayoutFactory> result = new HashSet<>();
438         result.add(maven2);
439         return Collections.unmodifiableSet(result);
440     }
441 
442     @Provides
443     @Singleton
444     Set<RepositoryListener> providesRepositoryListeners() {
445         return Collections.emptySet();
446     }
447 
448     private static class Slf4jModule extends AbstractModule {
449 
450         @Override
451         protected void configure() {
452             bind(LoggerFactory.class) //
453                     .to(Slf4jLoggerFactory.class);
454         }
455 
456         @Provides
457         @Singleton
458         ILoggerFactory getLoggerFactory() {
459             return org.slf4j.LoggerFactory.getILoggerFactory();
460         }
461     }
462 }