Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2010-2011 Geometer Plus <contact@geometerplus.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */

public class Main {
    public static String url(String baseUrl, String relativePath) {
        if (relativePath == null || relativePath.length() == 0) {
            return relativePath;
        }

        if (relativePath.contains("://") || relativePath.matches("(?s)^[a-zA-Z][a-zA-Z0-9+-.]*:.*$")) { // matches Non-relative URI; see rfc3986
            return relativePath;
        }

        if (relativePath.charAt(0) == '/') {
            int index = baseUrl.indexOf("://");
            index = baseUrl.indexOf("/", index + 3);
            if (index == -1) {
                return baseUrl + relativePath;
            } else {
                return baseUrl.substring(0, index) + relativePath;
            }
        } else {
            int index = baseUrl.lastIndexOf('/'); // FIXME: if (baseUrl.charAt(baseUrl.length() - 1) == '/')
            while (index > 0 && relativePath.startsWith("../")) {
                index = baseUrl.lastIndexOf('/', index - 1);
                relativePath = relativePath.substring(3);
            }
            return baseUrl.substring(0, index + 1) + relativePath;
        }
    }
}