com.manydesigns.elements.util.RandomUtil.java Source code

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Here is the source code for com.manydesigns.elements.util.RandomUtil.java

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/*
 * Copyright (C) 2005-2013 ManyDesigns srl.  All rights reserved.
 * http://www.manydesigns.com/
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 3 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package com.manydesigns.elements.util;

import org.apache.commons.lang.RandomStringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.File;
import java.text.MessageFormat;

/*
* @author Paolo Predonzani     - paolo.predonzani@manydesigns.com
* @author Angelo Lupo          - angelo.lupo@manydesigns.com
* @author Giampiero Granatella - giampiero.granatella@manydesigns.com
* @author Alessio Stalla       - alessio.stalla@manydesigns.com
*/
public class RandomUtil {
    public static final String copyright = "Copyright (c) 2005-2013, ManyDesigns srl";

    public final static int RANDOM_CODE_LENGTH = 25;

    public final static Logger logger = LoggerFactory.getLogger(RandomUtil.class);

    protected static final File tempDir;

    static {
        tempDir = new File(System.getProperty("java.io.tmpdir", "/tmp"));
    }

    public static File getTempDir() {
        return tempDir;
    }

    public static String createRandomId() {
        return createRandomId(RANDOM_CODE_LENGTH);
    }

    public static String createRandomId(int length) {
        return RandomStringUtils.random(length, "abcdefghijklmnopqrstuvwxyz0123456789");
    }

    public static File getTempCodeFile(String fileNameFormat, String randomCode) {
        return getCodeFile(tempDir, fileNameFormat, randomCode);
    }

    public static File getCodeFile(File dir, String fileNameFormat, String code) {
        return new File(dir, getCodeFileName(fileNameFormat, code));
    }

    public static String getCodeFileName(String fileNameFormat, String randomCode) {
        return MessageFormat.format(fileNameFormat, randomCode);
    }

}