| /* |
| * 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.apache.commons.vfs2.provider.res; |
| |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.commons.vfs2.FileName; |
| import org.apache.commons.vfs2.FileSystemException; |
| import org.apache.commons.vfs2.FileType; |
| import org.apache.commons.vfs2.provider.local.GenericFileNameParser; |
| |
| /** |
| * Slightly modified filename parser for resource URIs. |
| */ |
| public class ResourceFileNameParser extends GenericFileNameParser { |
| |
| private static final ResourceFileNameParser INSTANCE = new ResourceFileNameParser(); |
| |
| /** |
| * retrieve a instance to this parser. |
| * |
| * @return the parser |
| */ |
| public static GenericFileNameParser getInstance() { |
| return INSTANCE; |
| } |
| |
| @Override |
| protected String extractRootPrefix(final String uri, final StringBuilder name) throws FileSystemException { |
| // Resource URI (as used by ClassLoader.getResource()) are assumed to be absolute despite |
| // lacking a leading '/'. All leading '/' will be stripped from the name. |
| |
| int index = 0; |
| while (index < name.length() && name.charAt(index) == '/') { |
| ++index; |
| } |
| if (index > 0) { |
| name.delete(0, index); |
| } |
| |
| if (StringUtils.isEmpty(name)) { |
| throw new FileSystemException("vfs.provider.res/not-valid-resource-location.error", uri); |
| } |
| |
| return "/"; |
| } |
| |
| @Override |
| protected FileName createFileName(final String scheme, final String rootFile, final String path, |
| final FileType type) { |
| return new ResourceFileName(scheme, path, type); |
| } |
| } |