EmailUtils.java

/*
 * Copyright 2010 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 com.springsource.greenhouse.utils;

import java.util.regex.Pattern;

/**
 * Email parsing/validation utilities.
 * @author Keith Donald
 */
public final class EmailUtils {
	
	/**
	 * Returns true if the String is a valid email address.
	 */
	public static boolean isEmail(String string) {
		return emailPattern.matcher(string).matches();
	}
	
	private static final Pattern emailPattern = Pattern.compile("[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}");
	
	private EmailUtils() {
		
	}

}