001package org.eclipse.aether.internal.impl.collect; 002 003/* 004 * Licensed to the Apache Software Foundation (ASF) under one 005 * or more contributor license agreements. See the NOTICE file 006 * distributed with this work for additional information 007 * regarding copyright ownership. The ASF licenses this file 008 * to you under the Apache License, Version 2.0 (the 009 * "License"); you may not use this file except in compliance 010 * with the License. You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, 015 * software distributed under the License is distributed on an 016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 017 * KIND, either express or implied. See the License for the 018 * specific language governing permissions and limitations 019 * under the License. 020 */ 021 022import javax.inject.Inject; 023import javax.inject.Named; 024import javax.inject.Singleton; 025 026import java.util.HashMap; 027import java.util.Map; 028 029import org.eclipse.aether.RepositorySystemSession; 030import org.eclipse.aether.collection.CollectRequest; 031import org.eclipse.aether.collection.CollectResult; 032import org.eclipse.aether.collection.DependencyCollectionException; 033import org.eclipse.aether.impl.DependencyCollector; 034import org.eclipse.aether.internal.impl.collect.bf.BfDependencyCollector; 035import org.eclipse.aether.internal.impl.collect.df.DfDependencyCollector; 036import org.eclipse.aether.spi.locator.Service; 037import org.eclipse.aether.spi.locator.ServiceLocator; 038import org.eclipse.aether.util.ConfigUtils; 039 040import static java.util.Objects.requireNonNull; 041 042/** 043 * Default implementation of {@link DependencyCollector} that merely indirect to selected delegate. 044 */ 045@Singleton 046@Named 047public class DefaultDependencyCollector 048 implements DependencyCollector, Service 049{ 050 private static final String CONFIG_PROP_COLLECTOR_IMPL = "aether.dependencyCollector.impl"; 051 052 private static final String DEFAULT_COLLECTOR_IMPL = DfDependencyCollector.NAME; 053 054 private final Map<String, DependencyCollectorDelegate> delegates; 055 056 /** 057 * Default ctor for SL. 058 * 059 * @deprecated SL is to be removed. 060 */ 061 @Deprecated 062 public DefaultDependencyCollector() 063 { 064 this.delegates = new HashMap<>(); 065 } 066 067 @Inject 068 public DefaultDependencyCollector( Map<String, DependencyCollectorDelegate> delegates ) 069 { 070 this.delegates = requireNonNull( delegates ); 071 } 072 073 @Override 074 public void initService( ServiceLocator locator ) 075 { 076 BfDependencyCollector bf = new BfDependencyCollector(); 077 bf.initService( locator ); 078 DfDependencyCollector df = new DfDependencyCollector(); 079 df.initService( locator ); 080 this.delegates.put( BfDependencyCollector.NAME, bf ); 081 this.delegates.put( DfDependencyCollector.NAME, df ); 082 } 083 084 @Override 085 public CollectResult collectDependencies( RepositorySystemSession session, CollectRequest request ) 086 throws DependencyCollectionException 087 { 088 String delegateName = ConfigUtils.getString( session, DEFAULT_COLLECTOR_IMPL, CONFIG_PROP_COLLECTOR_IMPL ); 089 DependencyCollectorDelegate delegate = delegates.get( delegateName ); 090 if ( delegate == null ) 091 { 092 throw new IllegalArgumentException( "Unknown collector impl: '" + delegateName 093 + "', known implementations are " + delegates.keySet() ); 094 } 095 return delegate.collectDependencies( session, request ); 096 } 097}