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Job Scheduling for LastaFlute

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/*
 * Copyright 2015-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 
 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.lastaflute.job.util;

import it.sauronsoftware.cron4j.SchedulingPattern;

/**
 * @author jflute
 * @since 0.2.0 (2016/01/12 Tuesday)
 */
public abstract class LaCronUtil {

    /**
     * @param cronExp The cron expression to be validated. (NotNull)
     * @return true if valid.
     */
    public static boolean isCronExpValid(String cronExp) {
        if (cronExp == null) {
            throw new IllegalArgumentException("The argument 'cronExp' should not be null.");
        }
        return SchedulingPattern.validate(cronExp);
    }
}