| package org.eclipse.aether.transport.classpath; |
| |
| /* |
| * 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 java.net.URI; |
| import java.net.URISyntaxException; |
| import java.net.URL; |
| import java.net.URLConnection; |
| |
| import org.eclipse.aether.RepositorySystemSession; |
| import org.eclipse.aether.repository.RemoteRepository; |
| import org.eclipse.aether.spi.connector.transport.AbstractTransporter; |
| import org.eclipse.aether.spi.connector.transport.GetTask; |
| import org.eclipse.aether.spi.connector.transport.PeekTask; |
| import org.eclipse.aether.spi.connector.transport.PutTask; |
| import org.eclipse.aether.spi.connector.transport.TransportTask; |
| import org.eclipse.aether.transfer.NoTransporterException; |
| import org.eclipse.aether.util.ConfigUtils; |
| |
| /** |
| * A transporter reading from the classpath. |
| */ |
| final class ClasspathTransporter |
| extends AbstractTransporter |
| { |
| |
| private final String resourceBase; |
| |
| private final ClassLoader classLoader; |
| |
| ClasspathTransporter( RepositorySystemSession session, RemoteRepository repository ) |
| throws NoTransporterException |
| { |
| if ( !"classpath".equalsIgnoreCase( repository.getProtocol() ) ) |
| { |
| throw new NoTransporterException( repository ); |
| } |
| |
| String base; |
| try |
| { |
| URI uri = new URI( repository.getUrl() ); |
| String ssp = uri.getSchemeSpecificPart(); |
| if ( ssp.startsWith( "/" ) ) |
| { |
| base = uri.getPath(); |
| if ( base == null ) |
| { |
| base = ""; |
| } |
| else if ( base.startsWith( "/" ) ) |
| { |
| base = base.substring( 1 ); |
| } |
| } |
| else |
| { |
| base = ssp; |
| } |
| if ( base.length() > 0 && !base.endsWith( "/" ) ) |
| { |
| base += '/'; |
| } |
| } |
| catch ( URISyntaxException e ) |
| { |
| throw new NoTransporterException( repository, e ); |
| } |
| resourceBase = base; |
| |
| Object cl = ConfigUtils.getObject( session, null, ClasspathTransporterFactory.CONFIG_PROP_CLASS_LOADER ); |
| if ( cl instanceof ClassLoader ) |
| { |
| classLoader = (ClassLoader) cl; |
| } |
| else |
| { |
| classLoader = Thread.currentThread().getContextClassLoader(); |
| } |
| } |
| |
| private URL getResource( TransportTask task ) |
| throws Exception |
| { |
| String resource = resourceBase + task.getLocation().getPath(); |
| URL url = classLoader.getResource( resource ); |
| if ( url == null ) |
| { |
| throw new ResourceNotFoundException( "Could not locate " + resource ); |
| } |
| return url; |
| } |
| |
| public int classify( Throwable error ) |
| { |
| if ( error instanceof ResourceNotFoundException ) |
| { |
| return ERROR_NOT_FOUND; |
| } |
| return ERROR_OTHER; |
| } |
| |
| @Override |
| protected void implPeek( PeekTask task ) |
| throws Exception |
| { |
| getResource( task ); |
| } |
| |
| @Override |
| protected void implGet( GetTask task ) |
| throws Exception |
| { |
| URL url = getResource( task ); |
| URLConnection conn = url.openConnection(); |
| utilGet( task, conn.getInputStream(), true, conn.getContentLength(), false ); |
| } |
| |
| @Override |
| protected void implPut( PutTask task ) |
| throws Exception |
| { |
| throw new UnsupportedOperationException( "Uploading to a classpath: repository is not supported" ); |
| } |
| |
| @Override |
| protected void implClose() |
| { |
| } |
| |
| } |