001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.commons.vfs2.provider.local; 018 019import org.apache.commons.vfs2.FileName; 020import org.apache.commons.vfs2.FileSystemException; 021import org.apache.commons.vfs2.FileType; 022 023/** 024 * A general-purpose file name parser. 025 */ 026public class GenericFileNameParser extends LocalFileNameParser { 027 private static final GenericFileNameParser INSTANCE = new GenericFileNameParser(); 028 029 /** 030 * retrieve a instance to this parser. 031 * 032 * @return the parser 033 */ 034 public static GenericFileNameParser getInstance() { 035 return INSTANCE; 036 } 037 038 /** 039 * Pops the root prefix off a URI, which has had the scheme removed. 040 */ 041 @Override 042 protected String extractRootPrefix(final String uri, final StringBuilder name) throws FileSystemException { 043 // TODO - this class isn't generic at all. Need to fix this 044 045 // Looking for <sep> 046 if (name.length() == 0 || name.charAt(0) != '/') { 047 throw new FileSystemException("vfs.provider.local/not-absolute-file-name.error", uri); 048 } 049 050 // do not strip the separator, BUT also return it ... 051 return "/"; 052 } 053 054 /* 055 * ... this is why whe need this: here the rootFilename can only be "/" (see above) put this "/" is also in the 056 * pathname so its of no value for the LocalFileName instance 057 */ 058 @Override 059 protected FileName createFileName(final String scheme, final String rootFile, final String path, 060 final FileType type) { 061 return new LocalFileName(scheme, "", path, type); 062 } 063}