| /* |
| * 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.vfs.provider.local; |
| |
| import org.apache.commons.vfs.FileName; |
| import org.apache.commons.vfs.FileSystemException; |
| import org.apache.commons.vfs.FileType; |
| import org.apache.commons.vfs.provider.AbstractFileNameParser; |
| import org.apache.commons.vfs.provider.UriParser; |
| import org.apache.commons.vfs.provider.VfsComponentContext; |
| |
| /** |
| * A name parser. |
| * |
| * @author <a href="mailto:adammurdoch@apache.org">Adam Murdoch</a> |
| * @version $Revision$ $Date$ |
| */ |
| public abstract class LocalFileNameParser extends AbstractFileNameParser |
| { |
| /** |
| * Determines if a name is an absolute file name. |
| * @param name The file name. |
| * @return true if the name is absolute, false otherwise. |
| */ |
| public boolean isAbsoluteName(final String name) |
| { |
| // TODO - this is yucky |
| StringBuffer b = new StringBuffer(name); |
| try |
| { |
| UriParser.fixSeparators(b); |
| extractRootPrefix(name, b); |
| return true; |
| } |
| catch (FileSystemException e) |
| { |
| return false; |
| } |
| } |
| |
| /** |
| * Pops the root prefix off a URI, which has had the scheme removed. |
| */ |
| protected abstract String extractRootPrefix(final String uri, |
| final StringBuffer name) |
| throws FileSystemException; |
| |
| |
| public FileName parseUri(final VfsComponentContext context, FileName base, final String filename) |
| throws FileSystemException |
| { |
| final StringBuffer name = new StringBuffer(); |
| |
| // Extract the scheme |
| String scheme = UriParser.extractScheme(filename, name); |
| if (scheme == null) |
| { |
| scheme = "file"; |
| } |
| |
| // Remove encoding, and adjust the separators |
| UriParser.canonicalizePath(name, 0, name.length(), this); |
| |
| UriParser.fixSeparators(name); |
| |
| // Extract the root prefix |
| final String rootFile = extractRootPrefix(filename, name); |
| |
| // Normalise the path |
| FileType fileType = UriParser.normalisePath(name); |
| |
| final String path = name.toString(); |
| |
| return createFileName( |
| scheme, |
| rootFile, |
| path, |
| fileType); |
| } |
| |
| protected abstract FileName createFileName(String scheme, final String rootFile, final String path, |
| final FileType type); |
| } |