it.sauronsoftware.cron4j.IntArrayValueMatcher Maven / Gradle / Ivy

Go to download
/*
 * cron4j - A pure Java cron-like scheduler
 * 
 * Copyright (C) 2007-2010 Carlo Pelliccia (www.sauronsoftware.it)
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version
 * 2.1, as published by the Free Software Foundation.
 *
 * This program 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 2.1 for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License version 2.1 along with this program.
 * If not, see .
 */
package it.sauronsoftware.cron4j;

import java.util.ArrayList;

/**
 * 
 * A ValueMatcher whose rules are in a plain array of integer values. When asked
 * to validate a value, this ValueMatcher checks if it is in the array.
 * 
 * 
 * @author Carlo Pelliccia
 */
class IntArrayValueMatcher implements ValueMatcher {

	/**
	 * The accepted values.
	 */
	private int[] values;

	/**
	 * Builds the ValueMatcher.
	 * 
	 * @param integers
	 *            An ArrayList of Integer elements, one for every value accepted
	 *            by the matcher. The match() method will return true only if
	 *            its parameter will be one of this list.
	 */
	public IntArrayValueMatcher(ArrayList integers) {
		int size = integers.size();
		values = new int[size];
		for (int i = 0; i < size; i++) {
			try {
				values[i] = ((Integer) integers.get(i)).intValue();
			} catch (Exception e) {
				throw new IllegalArgumentException(e.getMessage());
			}
		}
	}

	/**
	 * Returns true if the given value is included in the matcher list.
	 */
	public boolean match(int value) {
		for (int i = 0; i < values.length; i++) {
			if (values[i] == value) {
				return true;
			}
		}
		return false;
	}

}