isspst/src/main/java/info/bukova/isspst/StringUtils.java

package info.bukova.isspst;

import java.util.List;

import org.zkoss.util.resource.Labels;

public class StringUtils
{

	private static String nullStr(String str)
	{
		return str == null ? "" : str;
	}

	private static String not0ToStr(long i)
	{
		return i == 0 ? "" : String.valueOf(i);
	}

	public static String localizeDbErr(String sqlError)
	{
		String splitMessage[] = sqlError.split("'");
		String message = "";

		for (int i = 0; i < splitMessage.length; i++)
		{
			if (i % 2 == 0)
			{
				message += getLocalized(splitMessage[i]);
			}
			else
			{
				message += " '" + splitMessage[i] + "' ";
			}
		}

		return message;
	}

	public static String localize(String key)
	{
		return Labels.getLabel(key) == null ? key : Labels.getLabel(key);
	}

	private static String getLocalized(String str)
	{
		String words[] = str.split(" ");
		String key = "";

		for (String word : words)
		{
			if (!word.isEmpty())
			{
				key += word.substring(0, 1).toUpperCase() + word.substring(1);
			}
		}

		return Labels.getLabel("Db" + key);
	}

	public static boolean isEqualForFilter(String value, String search)
	{
		value = StringUtils.nullStr(value).toLowerCase();
		search = StringUtils.nullStr(search).toLowerCase();

		if (search.isEmpty())
		{
			return true;
		}

		return value.startsWith(search);
	}

	public static boolean isIcEqualForFilter(long value, long search)
	{
		String compareValue = StringUtils.not0ToStr(value);
		String searchValue = StringUtils.not0ToStr(search);
		return compareValue.startsWith(searchValue);
	}

	public static String encodeSpecialChars(String value)
	{
		if (value != null)
		{
			value = value.replace("²", "[up]2[/up]");
			value = value.replace("³", "[up]3[/up]");
		}

		return value;
	}

	public static String decodeSpecialChars(String value)
	{
		if (value != null)
		{
			value = value.replace("[up]2[/up]", "²");
			value = value.replace("[up]3[/up]", "³");
		}

		return value;
	}

	public static String addSeparator(String value, String separator, boolean toTail)
	{
		if ((value != null) && (separator != null))
		{
			if (!value.isEmpty() && !separator.isEmpty())
			{
				value = (toTail ? value + separator : separator + value);
			}
		}
		
		return value;
	}

	public static String addSeparator(String value, String separator)
	{
		return StringUtils.addSeparator(value, separator, true);
	}

	public static String join(List<String> list, String separator)
	{
		String result = "";
		
		for (int i = 0; i < list.size(); i++)
		{
			String item = StringUtils.nullStr(list.get(i));
			result = StringUtils.addSeparator(result, separator);
			result += item;
		}
		
		return result;
	}

	public static String joinNotEmpty(List<String> list, String separator)
	{
		String result = "";

		for (int i = 0; i < list.size(); i++)
		{
			String item = StringUtils.nullStr(list.get(i));

			if (!item.isEmpty())
			{
				result = StringUtils.addSeparator(result, separator);
				result += item;
			}
		}

		return result;
	}
}