Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 *  Copyright 2011 Peter Karich 
 * 
 *  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.
 */

public class Main {
    /**
     * @param urlForDomain
     *            extract the domain from this url
     * @param path
     *            this url does not have a domain
     * @return
     */
    public static String useDomainOfFirstArg4Second(String urlForDomain, String path) {
        if (path.startsWith("http"))
            return path;

        if ("favicon.ico".equals(path))
            path = "/favicon.ico";

        if (path.startsWith("//")) {
            // wikipedia special case, see tests
            if (urlForDomain.startsWith("https:"))
                return "https:" + path;

            return "http:" + path;
        } else if (path.startsWith("/"))
            return "http://" + extractHost(urlForDomain) + path;
        else if (path.startsWith("../")) {
            int slashIndex = urlForDomain.lastIndexOf("/");
            if (slashIndex > 0 && slashIndex + 1 < urlForDomain.length())
                urlForDomain = urlForDomain.substring(0, slashIndex + 1);

            return urlForDomain + path;
        }
        return path;
    }

    public static String extractHost(String url) {
        return extractDomain(url, false);
    }

    public static String extractDomain(String url, boolean aggressive) {
        if (url.startsWith("http://"))
            url = url.substring("http://".length());
        else if (url.startsWith("https://"))
            url = url.substring("https://".length());

        if (aggressive) {
            if (url.startsWith("www."))
                url = url.substring("www.".length());

            // strip mobile from start
            if (url.startsWith("m."))
                url = url.substring("m.".length());
        }

        int slashIndex = url.indexOf("/");
        if (slashIndex > 0)
            url = url.substring(0, slashIndex);

        return url;
    }
}