/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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.apache.aries.samples.blog.web.util; public class FormatChecker { public static boolean isValidEmail(String email) { if (email != null && email.matches("^(?:[a-zA-Z0-9_'^&/+-])+(?:\\.(?:[a-zA-Z0-9_'^&/+-])+)*@(?:(?:\\[?(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?))\\.){3}(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\]?)|(?:[a-zA-Z0-9-]+\\.)+(?:[a-zA-Z]){2,}\\.?)$")) return true; return false; } }