Here you can find the source of isValidUrlDataType(URL value)
public static boolean isValidUrlDataType(URL value)
//package com.java2s; /*/*from w ww .j ava2s . com*/ * Copyright 2015-2016 OpenEstate.org. * * 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. */ import java.net.URL; public class Main { public static boolean isValidUrlDataType(URL value) { if (value == null) return false; else if (!"http".equals(value.getProtocol())) return false; else return value.toString().length() < 256; } }