TextUtils.java

package org.caudexorigo.text;

import org.apache.commons.lang3.StringUtils;

public class TextUtils
{
	public static String coalesce(String... values)
	{
		for (String v : values)
		{
			if (StringUtils.isNotBlank(v))
			{
				return v;
			}
		}
		return "";
	}

	public static String removeInvalidXmlChars(String in_string)
	{
		if (in_string == null)
			return null;

		StringBuilder sbOutput = new StringBuilder();
		char ch;

		for (int i = 0; i < in_string.length(); i++)
		{
			ch = in_string.charAt(i);
			if ((ch >= 0x0020 && ch <= 0xD7FF) ||
					(ch >= 0xE000 && ch <= 0xFFFD) ||
					ch == 0x0009 ||
					ch == 0x000A ||
					ch == 0x000D)
			{
				sbOutput.append(ch);
			}
		}
		return sbOutput.toString();
	}
}