cstamas commented on a change in pull request #77: URL: https://github.com/apache/maven-resolver/pull/77#discussion_r605556278
########## File path: maven-resolver-impl/src/main/java/org/eclipse/aether/internal/impl/synccontext/NamedSyncContextFactory.java ########## @@ -0,0 +1,128 @@ +package org.eclipse.aether.internal.impl.synccontext; + +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +import org.eclipse.aether.RepositorySystemSession; +import org.eclipse.aether.SyncContext; +import org.eclipse.aether.internal.impl.synccontext.named.DiscriminatingNameMapper; +import org.eclipse.aether.internal.impl.synccontext.named.GAVNameMapper; +import org.eclipse.aether.internal.impl.synccontext.named.NameMapper; +import org.eclipse.aether.internal.impl.synccontext.named.NamedLockFactoryAdapter; +import org.eclipse.aether.internal.impl.synccontext.named.StaticNameMapper; +import org.eclipse.aether.internal.impl.synccontext.named.takari.TakariNamedLockFactory; +import org.eclipse.aether.internal.impl.synccontext.named.takari.TakariNameMapper; +import org.eclipse.aether.named.NamedLockFactory; +import org.eclipse.aether.named.providers.LocalReadWriteLockNamedLockFactory; +import org.eclipse.aether.named.providers.LocalSemaphoreNamedLockFactory; + +import javax.annotation.PreDestroy; +import javax.inject.Inject; +import javax.inject.Named; +import javax.inject.Singleton; +import java.util.HashMap; +import java.util.Map; +import java.util.concurrent.TimeUnit; + +/** + * Named {@link SyncContextFactoryDelegate} implementation that selects underlying {@link NamedLockFactory} + * implementation at creation. + */ +@Singleton +@Named( NamedSyncContextFactory.NAME ) +public final class NamedSyncContextFactory + implements SyncContextFactoryDelegate +{ + public static final String NAME = "named"; + + private static final String FACTORY_NAME = System.getProperty( + "aether.syncContext.named.factory", LocalReadWriteLockNamedLockFactory.NAME + ); + + private static final String NAME_MAPPING = System.getProperty( + "aether.syncContext.named.nameMapping", DiscriminatingNameMapper.NAME + ); + + private static final long TIME_OUT = Long.getLong( + "aether.syncContext.named.timeOut", 30L + ); + + private static final TimeUnit TIME_UNIT = TimeUnit.valueOf( System.getProperty( + "aether.syncContext.named.timeUnit", TimeUnit.SECONDS.name() + ) ); + + private final NamedLockFactoryAdapter namedLockFactoryAdapter; + + /** + * Constructor used with DI, where factories are injected and selected based on key. + */ + @Inject + public NamedSyncContextFactory( final Map<String, NameMapper> nameMappers, + final Map<String, NamedLockFactory> factories ) + { + this.namedLockFactoryAdapter = selectAndAdapt( nameMappers, factories ); + } + + /** + * Default constructor. + */ + public NamedSyncContextFactory() + { + HashMap<String, NameMapper> nameMappers = new HashMap<>(); + nameMappers.put( StaticNameMapper.NAME, new StaticNameMapper() ); + nameMappers.put( GAVNameMapper.NAME, new GAVNameMapper() ); + nameMappers.put( DiscriminatingNameMapper.NAME, new DiscriminatingNameMapper( new GAVNameMapper() ) ); + nameMappers.put( TakariNameMapper.NAME, new TakariNameMapper() ); + HashMap<String, NamedLockFactory> factories = new HashMap<>(); + factories.put( LocalReadWriteLockNamedLockFactory.NAME, new LocalReadWriteLockNamedLockFactory() ); + factories.put( LocalSemaphoreNamedLockFactory.NAME, new LocalSemaphoreNamedLockFactory() ); + factories.put( TakariNamedLockFactory.NAME, new TakariNamedLockFactory() ); + this.namedLockFactoryAdapter = selectAndAdapt( nameMappers, factories ); + } + + private static NamedLockFactoryAdapter selectAndAdapt( final Map<String, NameMapper> nameMappers, + final Map<String, NamedLockFactory> factories ) + { + NameMapper nameMapper = nameMappers.get( NAME_MAPPING ); + if ( nameMapper == null ) + { + throw new IllegalArgumentException( "Unknown NameMapper name: " + NAME_MAPPING + + ", known ones: " + nameMappers.keySet() ); + } + NamedLockFactory factory = factories.get( FACTORY_NAME ); + if ( factory == null ) + { + throw new IllegalArgumentException( "Unknown NamedLockFactory name: " + FACTORY_NAME Review comment: Commented on previous comment. -- This is an automated message from the Apache Git Service. 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