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 static java.util.Objects.requireNonNull; 025import java.util.Set; 026 027import javax.inject.Inject; 028import javax.inject.Named; 029import javax.inject.Singleton; 030 031import org.eclipse.aether.RepositoryEvent; 032import org.eclipse.aether.RepositoryListener; 033import org.eclipse.aether.impl.RepositoryEventDispatcher; 034import org.eclipse.aether.spi.locator.Service; 035import org.eclipse.aether.spi.locator.ServiceLocator; 036import org.slf4j.Logger; 037import org.slf4j.LoggerFactory; 038 039/** 040 */ 041@Singleton 042@Named 043public class DefaultRepositoryEventDispatcher 044 implements RepositoryEventDispatcher, Service 045{ 046 047 private static final Logger LOGGER = LoggerFactory.getLogger( DefaultRepositoryEventDispatcher.class ); 048 049 private Collection<RepositoryListener> listeners = new ArrayList<>(); 050 051 public DefaultRepositoryEventDispatcher() 052 { 053 // enables no-arg constructor 054 } 055 056 @Inject 057 DefaultRepositoryEventDispatcher( Set<RepositoryListener> listeners ) 058 { 059 setRepositoryListeners( listeners ); 060 } 061 062 public DefaultRepositoryEventDispatcher addRepositoryListener( RepositoryListener listener ) 063 { 064 this.listeners.add( requireNonNull( listener, "repository listener cannot be null" ) ); 065 return this; 066 } 067 068 public DefaultRepositoryEventDispatcher setRepositoryListeners( Collection<RepositoryListener> listeners ) 069 { 070 if ( listeners == null ) 071 { 072 this.listeners = new ArrayList<>(); 073 } 074 else 075 { 076 this.listeners = listeners; 077 } 078 return this; 079 } 080 081 public void initService( ServiceLocator locator ) 082 { 083 setRepositoryListeners( locator.getServices( RepositoryListener.class ) ); 084 } 085 086 public void dispatch( RepositoryEvent event ) 087 { 088 if ( !listeners.isEmpty() ) 089 { 090 for ( RepositoryListener listener : listeners ) 091 { 092 dispatch( event, listener ); 093 } 094 } 095 096 RepositoryListener listener = event.getSession().getRepositoryListener(); 097 098 if ( listener != null ) 099 { 100 dispatch( event, listener ); 101 } 102 } 103 104 private void dispatch( RepositoryEvent event, RepositoryListener listener ) 105 { 106 try 107 { 108 switch ( event.getType() ) 109 { 110 case ARTIFACT_DEPLOYED: 111 listener.artifactDeployed( event ); 112 break; 113 case ARTIFACT_DEPLOYING: 114 listener.artifactDeploying( event ); 115 break; 116 case ARTIFACT_DESCRIPTOR_INVALID: 117 listener.artifactDescriptorInvalid( event ); 118 break; 119 case ARTIFACT_DESCRIPTOR_MISSING: 120 listener.artifactDescriptorMissing( event ); 121 break; 122 case ARTIFACT_DOWNLOADED: 123 listener.artifactDownloaded( event ); 124 break; 125 case ARTIFACT_DOWNLOADING: 126 listener.artifactDownloading( event ); 127 break; 128 case ARTIFACT_INSTALLED: 129 listener.artifactInstalled( event ); 130 break; 131 case ARTIFACT_INSTALLING: 132 listener.artifactInstalling( event ); 133 break; 134 case ARTIFACT_RESOLVED: 135 listener.artifactResolved( event ); 136 break; 137 case ARTIFACT_RESOLVING: 138 listener.artifactResolving( event ); 139 break; 140 case METADATA_DEPLOYED: 141 listener.metadataDeployed( event ); 142 break; 143 case METADATA_DEPLOYING: 144 listener.metadataDeploying( event ); 145 break; 146 case METADATA_DOWNLOADED: 147 listener.metadataDownloaded( event ); 148 break; 149 case METADATA_DOWNLOADING: 150 listener.metadataDownloading( event ); 151 break; 152 case METADATA_INSTALLED: 153 listener.metadataInstalled( event ); 154 break; 155 case METADATA_INSTALLING: 156 listener.metadataInstalling( event ); 157 break; 158 case METADATA_INVALID: 159 listener.metadataInvalid( event ); 160 break; 161 case METADATA_RESOLVED: 162 listener.metadataResolved( event ); 163 break; 164 case METADATA_RESOLVING: 165 listener.metadataResolving( event ); 166 break; 167 default: 168 throw new IllegalStateException( "unknown repository event type " + event.getType() ); 169 } 170 } 171 catch ( Exception | LinkageError e ) 172 { 173 logError( e, listener ); 174 } 175 } 176 177 private void logError( Throwable e, Object listener ) 178 { 179 LOGGER.warn( "Failed to dispatch repository event to {}", listener.getClass().getCanonicalName(), e ); 180 } 181 182}