ValueFormat.java

package org.cyclopsgroup.jmxterm.utils;

import org.apache.commons.lang.StringEscapeUtils;
import org.apache.commons.lang.StringUtils;

/**
 * This is an utility to parse string value from input. It's only to parse a value such as MBean attribute value or
 * parameter of operation. It's NOT designed to parse MBean name or other type of input.
 *
 * @author $Author$
 * @version $Revision$ in $Change$ submitted at $DateTime$
 */
public class ValueFormat
{
    /**
     * Keyword that identifies NULL pointer <code>null</code>
     */
    public static final String NULL = "null";

    private ValueFormat()
    {
    }

    /**
     * Parse given syntax of string
     *
     * @param value String value
     * @return Escaped string value
     */
    public static String parseValue(String value)
    {
        if (StringUtils.isEmpty(value))
        {
            return null;
        }
        if (value.equals(NULL))
        {
            return null;
        }
        String s;
        if (value.charAt(0) == '\"' && value.charAt(value.length() - 1) == '\"')
        {
            s = value.substring(1, value.length() - 1);
        }
        else
        {
            s = value;
        }
        return StringEscapeUtils.unescapeJava(s);
    }
}