Java File Name Extract extractFileName(String file)

Description

extract File Name

License

Open Source License

Declaration

static String extractFileName(String file) 

Method Source Code

//package com.java2s;
/*/*from   w  w  w.ja v a  2s .c  o m*/
 * JBoss, Home of Professional Open Source.
 *
 * See the LEGAL.txt file distributed with this work for information regarding copyright ownership and licensing.
 *
 * See the AUTHORS.txt file distributed with this work for a full listing of individual contributors.
 */

public class Main {
    static String extractFileName(String file) {

        if (file.matches("^(\\w){2,}:.*")) // Handles URLs - No conversion necessary //$NON-NLS-1$
            // http://lib/foo.txt - currently do not support, converts to local
            // host with absolute path
            // file://lib/foo.txt
            // file:///c:/lib/foo.txt
            return null;
        else if (file.matches("^\\/.*")) // Handles absolute paths- it can be file or URL depending upon //$NON-NLS-1$
            // context Conversion needed
            // /lib/foo.txt
            return file;
        else if (file.matches("^\\w:[\\\\,\\/].*")) { //$NON-NLS-1$
            // Handles windows absolute path - no conversion needed
            // c:\\lib\\foo.txt
            // c:/lib.foo.txt
            file = file.replaceAll("\\\\", "\\/"); //$NON-NLS-1$ //$NON-NLS-2$
            return "/" + file; //$NON-NLS-1$
        } else if (file.matches("^(\\.)+\\/.*|^\\w+\\/.*|^\\w+.*")) // Handles relative paths - these can be URLs or files - //$NON-NLS-1$
            // conversion necessary
            // ./lib/foo.txt
            // ../lib/foo.txt
            // lib/foo.txt
            return file;
        return null;
    }
}

Related

1. extractFileName(final String filePath)
2. extractFileName(StackTraceElement aFrame)
3. extractFileName(String fileName)
4. extractFileName(String filePathName)
5. extractFileName(String filePathName)
6. extractFileName(String fn)