| /* |
| * 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. |
| */ |
| package org.eclipse.aether.transport.http; |
| |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.http.client.utils.URIUtils; |
| |
| /** |
| * Helps to deal with URIs. |
| */ |
| final class UriUtils |
| { |
| |
| public static URI resolve( URI base, URI ref ) |
| { |
| String path = ref.getRawPath(); |
| if ( path != null && path.length() > 0 ) |
| { |
| path = base.getRawPath(); |
| if ( path == null || !path.endsWith( "/" ) ) |
| { |
| try |
| { |
| base = new URI( base.getScheme(), base.getAuthority(), base.getPath() + '/', null, null ); |
| } |
| catch ( URISyntaxException e ) |
| { |
| throw new IllegalStateException( e ); |
| } |
| } |
| } |
| return URIUtils.resolve( base, ref ); |
| } |
| |
| public static List<URI> getDirectories( URI base, URI uri ) |
| { |
| List<URI> dirs = new ArrayList<URI>(); |
| for ( URI dir = uri.resolve( "." ); !isBase( base, dir ); dir = dir.resolve( ".." ) ) |
| { |
| dirs.add( dir ); |
| } |
| return dirs; |
| } |
| |
| private static boolean isBase( URI base, URI uri ) |
| { |
| String path = uri.getRawPath(); |
| if ( path == null || "/".equals( path ) ) |
| { |
| return true; |
| } |
| if ( base != null ) |
| { |
| URI rel = base.relativize( uri ); |
| if ( rel.getRawPath() == null || rel.getRawPath().length() <= 0 || rel.equals( uri ) ) |
| { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| } |