001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.eclipse.aether.impl.guice;
020
021import javax.inject.Named;
022import javax.inject.Singleton;
023
024import java.util.Collections;
025import java.util.HashMap;
026import java.util.HashSet;
027import java.util.Map;
028import java.util.Set;
029
030import com.google.inject.AbstractModule;
031import com.google.inject.Provides;
032import com.google.inject.name.Names;
033import org.eclipse.aether.RepositoryListener;
034import org.eclipse.aether.RepositorySystem;
035import org.eclipse.aether.impl.ArtifactResolver;
036import org.eclipse.aether.impl.DependencyCollector;
037import org.eclipse.aether.impl.Deployer;
038import org.eclipse.aether.impl.Installer;
039import org.eclipse.aether.impl.LocalRepositoryProvider;
040import org.eclipse.aether.impl.MetadataResolver;
041import org.eclipse.aether.impl.OfflineController;
042import org.eclipse.aether.impl.RemoteRepositoryFilterManager;
043import org.eclipse.aether.impl.RemoteRepositoryManager;
044import org.eclipse.aether.impl.RepositoryConnectorProvider;
045import org.eclipse.aether.impl.RepositoryEventDispatcher;
046import org.eclipse.aether.impl.RepositorySystemLifecycle;
047import org.eclipse.aether.impl.UpdateCheckManager;
048import org.eclipse.aether.impl.UpdatePolicyAnalyzer;
049import org.eclipse.aether.internal.impl.DefaultArtifactResolver;
050import org.eclipse.aether.internal.impl.DefaultChecksumPolicyProvider;
051import org.eclipse.aether.internal.impl.DefaultDeployer;
052import org.eclipse.aether.internal.impl.DefaultFileProcessor;
053import org.eclipse.aether.internal.impl.DefaultInstaller;
054import org.eclipse.aether.internal.impl.DefaultLocalPathComposer;
055import org.eclipse.aether.internal.impl.DefaultLocalPathPrefixComposerFactory;
056import org.eclipse.aether.internal.impl.DefaultLocalRepositoryProvider;
057import org.eclipse.aether.internal.impl.DefaultMetadataResolver;
058import org.eclipse.aether.internal.impl.DefaultOfflineController;
059import org.eclipse.aether.internal.impl.DefaultRemoteRepositoryManager;
060import org.eclipse.aether.internal.impl.DefaultRepositoryConnectorProvider;
061import org.eclipse.aether.internal.impl.DefaultRepositoryEventDispatcher;
062import org.eclipse.aether.internal.impl.DefaultRepositoryLayoutProvider;
063import org.eclipse.aether.internal.impl.DefaultRepositorySystem;
064import org.eclipse.aether.internal.impl.DefaultRepositorySystemLifecycle;
065import org.eclipse.aether.internal.impl.DefaultTrackingFileManager;
066import org.eclipse.aether.internal.impl.DefaultTransporterProvider;
067import org.eclipse.aether.internal.impl.DefaultUpdateCheckManager;
068import org.eclipse.aether.internal.impl.DefaultUpdatePolicyAnalyzer;
069import org.eclipse.aether.internal.impl.EnhancedLocalRepositoryManagerFactory;
070import org.eclipse.aether.internal.impl.LocalPathComposer;
071import org.eclipse.aether.internal.impl.LocalPathPrefixComposerFactory;
072import org.eclipse.aether.internal.impl.Maven2RepositoryLayoutFactory;
073import org.eclipse.aether.internal.impl.SimpleLocalRepositoryManagerFactory;
074import org.eclipse.aether.internal.impl.TrackingFileManager;
075import org.eclipse.aether.internal.impl.checksum.DefaultChecksumAlgorithmFactorySelector;
076import org.eclipse.aether.internal.impl.checksum.Md5ChecksumAlgorithmFactory;
077import org.eclipse.aether.internal.impl.checksum.Sha1ChecksumAlgorithmFactory;
078import org.eclipse.aether.internal.impl.checksum.Sha256ChecksumAlgorithmFactory;
079import org.eclipse.aether.internal.impl.checksum.Sha512ChecksumAlgorithmFactory;
080import org.eclipse.aether.internal.impl.checksum.SparseDirectoryTrustedChecksumsSource;
081import org.eclipse.aether.internal.impl.checksum.SummaryFileTrustedChecksumsSource;
082import org.eclipse.aether.internal.impl.checksum.TrustedToProvidedChecksumsSourceAdapter;
083import org.eclipse.aether.internal.impl.collect.DefaultDependencyCollector;
084import org.eclipse.aether.internal.impl.collect.DependencyCollectorDelegate;
085import org.eclipse.aether.internal.impl.collect.bf.BfDependencyCollector;
086import org.eclipse.aether.internal.impl.collect.df.DfDependencyCollector;
087import org.eclipse.aether.internal.impl.filter.DefaultRemoteRepositoryFilterManager;
088import org.eclipse.aether.internal.impl.filter.GroupIdRemoteRepositoryFilterSource;
089import org.eclipse.aether.internal.impl.filter.PrefixesRemoteRepositoryFilterSource;
090import org.eclipse.aether.internal.impl.resolution.TrustedChecksumsArtifactResolverPostProcessor;
091import org.eclipse.aether.internal.impl.slf4j.Slf4jLoggerFactory;
092import org.eclipse.aether.internal.impl.synccontext.DefaultSyncContextFactory;
093import org.eclipse.aether.internal.impl.synccontext.named.NameMapper;
094import org.eclipse.aether.internal.impl.synccontext.named.NameMappers;
095import org.eclipse.aether.internal.impl.synccontext.named.NamedLockFactoryAdapterFactory;
096import org.eclipse.aether.internal.impl.synccontext.named.NamedLockFactoryAdapterFactoryImpl;
097import org.eclipse.aether.internal.impl.synccontext.named.providers.DiscriminatingNameMapperProvider;
098import org.eclipse.aether.internal.impl.synccontext.named.providers.FileGAVNameMapperProvider;
099import org.eclipse.aether.internal.impl.synccontext.named.providers.FileHashingGAVNameMapperProvider;
100import org.eclipse.aether.internal.impl.synccontext.named.providers.GAVNameMapperProvider;
101import org.eclipse.aether.internal.impl.synccontext.named.providers.StaticNameMapperProvider;
102import org.eclipse.aether.named.NamedLockFactory;
103import org.eclipse.aether.named.providers.FileLockNamedLockFactory;
104import org.eclipse.aether.named.providers.LocalReadWriteLockNamedLockFactory;
105import org.eclipse.aether.named.providers.LocalSemaphoreNamedLockFactory;
106import org.eclipse.aether.named.providers.NoopNamedLockFactory;
107import org.eclipse.aether.spi.checksums.TrustedChecksumsSource;
108import org.eclipse.aether.spi.connector.checksum.ChecksumAlgorithmFactory;
109import org.eclipse.aether.spi.connector.checksum.ChecksumAlgorithmFactorySelector;
110import org.eclipse.aether.spi.connector.checksum.ChecksumPolicyProvider;
111import org.eclipse.aether.spi.connector.checksum.ProvidedChecksumsSource;
112import org.eclipse.aether.spi.connector.filter.RemoteRepositoryFilterSource;
113import org.eclipse.aether.spi.connector.layout.RepositoryLayoutFactory;
114import org.eclipse.aether.spi.connector.layout.RepositoryLayoutProvider;
115import org.eclipse.aether.spi.connector.transport.TransporterProvider;
116import org.eclipse.aether.spi.io.FileProcessor;
117import org.eclipse.aether.spi.localrepo.LocalRepositoryManagerFactory;
118import org.eclipse.aether.spi.log.LoggerFactory;
119import org.eclipse.aether.spi.resolution.ArtifactResolverPostProcessor;
120import org.eclipse.aether.spi.synccontext.SyncContextFactory;
121import 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 */
132public 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}