Java Directory Exist Check checkDirectory(String name, boolean createIfNonExistent)

Description

Checks if a directory exists.

License

BSD License

Parameter

Parameter	Description
name	directory name to check
createIfNonExistent	set to true if directory should be created

Exception

Parameter	Description
IOException	an exception

Declaration

public static void checkDirectory(String name, boolean createIfNonExistent) throws IOException 

Method Source Code

//package com.java2s;
/****************************************************************************\ 
 *                                                                            *
 *  SNEE (Sensor NEtwork Engine)                                              *
 *  http://code.google.com/p/snee                                             *
 *  Release 1.0, 24 May 2009, under New BSD License.                          *
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 *  Copyright (c) 2009, University of Manchester                              *
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 *  modification, are permitted provided that the following conditions are    *
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import java.io.File;

import java.io.IOException;

public class Main {
    /**/*from  w  w w .j  a  v  a2 s. co  m*/
     * Checks if a directory exists. If createIfNonExistent is true and 
     * the directory does not exist, then the directory is created.
     * @param name directory name to check
     * @param createIfNonExistent set to true if directory should be created
     * @throws IOException
     */
    //TODO: make this throw a UtilsException
    public static void checkDirectory(String name, boolean createIfNonExistent) throws IOException {
        File f = new File(name);
        if ((f.exists()) && (!f.isDirectory())) {
            throw new IOException("Directory " + name + "already exists but is not a directory");
        }

        if ((!f.exists() && (!createIfNonExistent))) {
            throw new IOException("Directory " + name + " does not exist");
        }

        if (!f.exists() && (createIfNonExistent)) {
            boolean success = f.mkdirs();
            if (!success) {
                throw new IOException("Directory " + name + " does not exist and cannot be created");
            }
        }
    }
}

Related

1. checkDir(String dir, boolean mustExist)
2. checkDirectoryExists(String path)
3. checkDirExist(String path)
4. checkDirExistence(String dir)
5. checkDirExistenceOrCreateMissingParts(final String dirPath)