001package org.eclipse.aether.internal.impl; 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 java.util.ArrayList; 023import java.util.Collection; 024import java.util.List; 025import static java.util.Objects.requireNonNull; 026import java.util.Set; 027 028import javax.inject.Inject; 029import javax.inject.Named; 030 031import org.eclipse.aether.RepositorySystemSession; 032import org.eclipse.aether.impl.RepositoryConnectorProvider; 033import org.eclipse.aether.repository.Authentication; 034import org.eclipse.aether.repository.Proxy; 035import org.eclipse.aether.repository.RemoteRepository; 036import org.eclipse.aether.spi.connector.RepositoryConnector; 037import org.eclipse.aether.spi.connector.RepositoryConnectorFactory; 038import org.eclipse.aether.spi.locator.Service; 039import org.eclipse.aether.spi.locator.ServiceLocator; 040import org.eclipse.aether.spi.log.Logger; 041import org.eclipse.aether.spi.log.LoggerFactory; 042import org.eclipse.aether.spi.log.NullLoggerFactory; 043import org.eclipse.aether.transfer.NoRepositoryConnectorException; 044 045/** 046 */ 047@Named 048public class DefaultRepositoryConnectorProvider 049 implements RepositoryConnectorProvider, Service 050{ 051 052 private Logger logger = NullLoggerFactory.LOGGER; 053 054 private Collection<RepositoryConnectorFactory> connectorFactories = new ArrayList<RepositoryConnectorFactory>(); 055 056 public DefaultRepositoryConnectorProvider() 057 { 058 // enables default constructor 059 } 060 061 @Inject 062 DefaultRepositoryConnectorProvider( Set<RepositoryConnectorFactory> connectorFactories, LoggerFactory loggerFactory ) 063 { 064 setRepositoryConnectorFactories( connectorFactories ); 065 setLoggerFactory( loggerFactory ); 066 } 067 068 public void initService( ServiceLocator locator ) 069 { 070 setLoggerFactory( locator.getService( LoggerFactory.class ) ); 071 connectorFactories = locator.getServices( RepositoryConnectorFactory.class ); 072 } 073 074 public DefaultRepositoryConnectorProvider setLoggerFactory( LoggerFactory loggerFactory ) 075 { 076 this.logger = NullLoggerFactory.getSafeLogger( loggerFactory, getClass() ); 077 return this; 078 } 079 080 public DefaultRepositoryConnectorProvider addRepositoryConnectorFactory( RepositoryConnectorFactory factory ) 081 { 082 connectorFactories.add( requireNonNull( factory, "repository connector factory cannot be null" ) ); 083 return this; 084 } 085 086 public DefaultRepositoryConnectorProvider setRepositoryConnectorFactories( Collection<RepositoryConnectorFactory> factories ) 087 { 088 if ( factories == null ) 089 { 090 this.connectorFactories = new ArrayList<RepositoryConnectorFactory>(); 091 } 092 else 093 { 094 this.connectorFactories = factories; 095 } 096 return this; 097 } 098 099 public RepositoryConnector newRepositoryConnector( RepositorySystemSession session, RemoteRepository repository ) 100 throws NoRepositoryConnectorException 101 { 102 requireNonNull( repository, "remote repository cannot be null" ); 103 104 PrioritizedComponents<RepositoryConnectorFactory> factories = 105 new PrioritizedComponents<RepositoryConnectorFactory>( session ); 106 for ( RepositoryConnectorFactory factory : this.connectorFactories ) 107 { 108 factories.add( factory, factory.getPriority() ); 109 } 110 111 List<NoRepositoryConnectorException> errors = new ArrayList<NoRepositoryConnectorException>(); 112 for ( PrioritizedComponent<RepositoryConnectorFactory> factory : factories.getEnabled() ) 113 { 114 try 115 { 116 RepositoryConnector connector = factory.getComponent().newInstance( session, repository ); 117 118 if ( logger.isDebugEnabled() ) 119 { 120 StringBuilder buffer = new StringBuilder( 256 ); 121 buffer.append( "Using connector " ).append( connector.getClass().getSimpleName() ); 122 Utils.appendClassLoader( buffer, connector ); 123 buffer.append( " with priority " ).append( factory.getPriority() ); 124 buffer.append( " for " ).append( repository.getUrl() ); 125 126 Authentication auth = repository.getAuthentication(); 127 if ( auth != null ) 128 { 129 buffer.append( " with " ).append( auth ); 130 } 131 132 Proxy proxy = repository.getProxy(); 133 if ( proxy != null ) 134 { 135 buffer.append( " via " ).append( proxy.getHost() ).append( ':' ).append( proxy.getPort() ); 136 137 auth = proxy.getAuthentication(); 138 if ( auth != null ) 139 { 140 buffer.append( " with " ).append( auth ); 141 } 142 } 143 144 logger.debug( buffer.toString() ); 145 } 146 147 return connector; 148 } 149 catch ( NoRepositoryConnectorException e ) 150 { 151 // continue and try next factory 152 errors.add( e ); 153 } 154 } 155 if ( logger.isDebugEnabled() && errors.size() > 1 ) 156 { 157 String msg = "Could not obtain connector factory for " + repository; 158 for ( Exception e : errors ) 159 { 160 logger.debug( msg, e ); 161 } 162 } 163 164 StringBuilder buffer = new StringBuilder( 256 ); 165 if ( factories.isEmpty() ) 166 { 167 buffer.append( "No connector factories available" ); 168 } 169 else 170 { 171 buffer.append( "Cannot access " ).append( repository.getUrl() ); 172 buffer.append( " with type " ).append( repository.getContentType() ); 173 buffer.append( " using the available connector factories: " ); 174 factories.list( buffer ); 175 } 176 177 throw new NoRepositoryConnectorException( repository, buffer.toString(), errors.size() == 1 ? errors.get( 0 ) 178 : null ); 179 } 180 181}