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package cicada.core;

public class Guard
{
	public static void ThrowIfArgumentIsNull(Object argumentValue, String argumentName) throws Exception
	{
		if (argumentValue == null)
		{
			throw new Exception(String.format("参数:%s 不能为空值", argumentName));
		}
	}

	public static void ThrowIfArgumentIsNull(Object argumentValue, String argumentName, String message) throws Exception
	{
		if (argumentValue == null)
		{
			throw new Exception(String.format("参数:%s 触发异常:%s", argumentName, message));
		}
	}

	public static void ThrowIfArgumentIsNullOrEmpty(String argumentValue, String argumentName) throws Exception
	{
		if (argumentValue == null || argumentValue.length() == 0)
		{
			throw new Exception(String.format("参数:%s 不能为空值", argumentName));
		}
	}

	public static void ThrowIfArgumentLessThanZero(int argumentValue, String argumentName) throws Exception
	{
		if (argumentValue < 0)
		{
			throw new Exception(String.format("参数:%s 不能小于0", argumentName));
		}
	}
}