Java tutorial
/* * Copyright 2012 Switchfly * * 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.switchfly.inputvalidation.validator; import org.apache.commons.lang.StringUtils; public class UrlValidator extends Validator<String> { @Override public boolean execute(String content) { if (StringUtils.isBlank(content)) { return false; } String[] schemes = { "http", "https" }; org.apache.commons.validator.UrlValidator urlValidator = new org.apache.commons.validator.UrlValidator( schemes, org.apache.commons.validator.UrlValidator.ALLOW_2_SLASHES); if (content.startsWith("http")) { return urlValidator.isValid(content); } return execute("http://www.mock.com/" + content); } }