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/*
* Copyright 2008 the original author or authors.
*
* Licensed 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.mockftpserver.fake.filesystem;
import org.mockftpserver.core.util.Assert;
/**
* Implementation of the {@link FileSystem} interface that simulates a Microsoft
* Windows file system. The rules for file and directory names include:
* <ul>
* <li>Filenames are case-insensitive (and normalized to lower-case)</li>
* <li>Either forward slashes (/) or backward slashes (\) are valid path separators (but are normalized to '\')</li>
* <li>An absolute path starts with a drive specifier (e.g. 'a:' or 'c:') followed
* by '\' or '/', or else if it starts with "\\"</li>
* </ul>
* <p/>
* The <code>directoryListingFormatter</code> property is automatically initialized to an instance
* of {@link WindowsDirectoryListingFormatter}.
*
* @author Chris Mair
* @version $Revision$ - $Date$
*/
public class WindowsFakeFileSystem extends AbstractFakeFileSystem {
public static final char SEPARATOR = '\\';
private static final String VALID_PATTERN = "\\p{Alpha}\\:" + "(\\\\|(\\\\[^\\\\\\:\\*\\?\\<\\>\\|\\\"]+)+)";
//static final VALID_PATTERN = /\p{Alpha}\:(\\|(\\[^\\\:\*\?\<\>\|\"]+)+)/
private static final String LAN_PREFIX = "\\\\";
/**
* Construct a new instance and initialize the directoryListingFormatter to a WindowsDirectoryListingFormatter.
*/
public WindowsFakeFileSystem() {
this.setDirectoryListingFormatter(new WindowsDirectoryListingFormatter());
}
//-------------------------------------------------------------------------
// Abstract Or Overridden Method Implementations
//-------------------------------------------------------------------------
/**
* Return the normalized and unique key used to access the file system entry. Windows is case-insensitive,
* so normalize all paths to lower-case.
*
* @param path - the path
* @return the corresponding normalized key
*/
protected String getFileSystemEntryKey(String path) {
return normalize(path).toLowerCase();
}
protected char getSeparatorChar() {
return SEPARATOR;
}
/**
* Return true if the specified path designates a valid (absolute) file path. For Windows
* paths, a path is valid if it starts with a drive specifier followed by
* '\' or '/', or if it starts with "\\".
*
* @param path - the path
* @return true if path is valid, false otherwise
* @throws AssertionError - if path is null
*/
protected boolean isValidName(String path) {
// \/:*?"<>|
Assert.notNull(path, "path");
String standardized = path.replace('/', '\\');
return standardized.matches(VALID_PATTERN) || standardized.startsWith(LAN_PREFIX);
}
/**
* Return true if the specified char is a separator character ('\' or '/')
*
* @param c - the character to test
* @return true if the specified char is a separator character ('\' or '/')
*/
protected boolean isSeparator(char c) {
return c == '\\' || c == '/';
}
/**
* @return true if the specified path component is a root for this filesystem
*/
protected boolean isRoot(String pathComponent) {
return pathComponent.indexOf(":") != -1;
}
}
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