Java Canonical Path Create getCanonicalDirectory(String path, String errPrefix)

Description

Retrieves the canonicalized directory from the specified path.

License

Open Source License

Parameter

Parameter	Description
path	the path to test
errPrefix	a String to use to provide a specific error message

Exception

Parameter	Description
IllegalArgumentException	if there is an IOException accessing the directory orif the path does not exist or if the path is not a directory

Return

the canonicalized

Declaration

public static File getCanonicalDirectory(String path, String errPrefix) 

Method Source Code

//package com.java2s;
/**/*ww w  . j a  v a2s  .  c o  m*/
 * Copyright (c) 2009 Stephen Evanchik
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *  Stephen Evanchik - initial implementation
 */

import java.io.File;
import java.io.IOException;

public class Main {
    /**
     * Retrieves the canonicalized directory from the specified path.
     *
     * @param path
     *            the path to test
     * @param errPrefix
     *            a String to use to provide a specific error message
     * @return the canonicalized {@link File}
     *
     * @throws IllegalArgumentException
     *             if there is an {@link IOException} accessing the directory or
     *             if the path does not exist or if the path is not a directory
     */
    public static File getCanonicalDirectory(String path, String errPrefix) {
        File rc;
        try {
            rc = new File(path).getCanonicalFile();
        } catch (IOException e) {
            throw new IllegalArgumentException(errPrefix + " '" + path + "' : " + e.getMessage()); //$NON-NLS-1$ $NON-NLS-2$
        }
        if (!rc.exists()) {
            throw new IllegalArgumentException(errPrefix + " '" + path + "' : does not exist"); //$NON-NLS-1$ $NON-NLS-2$
        }
        if (!rc.isDirectory()) {
            throw new IllegalArgumentException(errPrefix + " '" + path + "' : is not a directory"); //$NON-NLS-1$ $NON-NLS-2$
        }
        return rc;
    }
}

Related

1. getCanonicalCharset(String charset)
2. getCanonicalCharsetQuiet(String charset)
3. getCanonicalDirectory(final String rawDir)
4. getCanonicalFile(@Nullable final File aFile)
5. getCanonicalFile(File f)
6. getCanonicalFile(File file)
7. getCanonicalFile(File file)