RequiredParameterValidator.java

/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library 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 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library 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.
 */

package com.liferay.portal.tools.data.partitioning.sql.builder.internal.validators;

import com.beust.jcommander.IParameterValidator;
import com.beust.jcommander.ParameterException;

/**
 * @author Manuel de la Peña
 */
public class RequiredParameterValidator implements IParameterValidator {

	@Override
	public void validate(String name, String value) throws ParameterException {
		if (value == null) {
			throw new ParameterException("Parameter " + name + " is null");
		}

		value = value.trim();

		if (value.length() == 0) {
			throw new ParameterException("Parameter " + name + " is empty");
		}
	}

}