| /* |
| * Copyright (c) 2000, 2002, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.jndi.dns; |
| |
| |
| import java.net.MalformedURLException; |
| import java.util.Hashtable; |
| import java.util.StringTokenizer; |
| |
| import com.sun.jndi.toolkit.url.Uri; |
| import com.sun.jndi.toolkit.url.UrlUtil; |
| |
| |
| /** |
| * A DnsUrl represents a DNS pseudo-URL of the form |
| * <pre> |
| * dns://[host][:port][/[domain]] |
| * or |
| * dns:[/][domain] |
| * </pre> |
| * The host names a DNS server. If the host is not provided, it |
| * indicates that the underlying platform's DNS server(s) should be |
| * used if possible, or that "localhost" should be used otherwise. If |
| * the port is not provided, the DNS default port 53 will be used. |
| * The domain indicates the domain name of the context, and is not |
| * necessarily related to the domain of the server; if it is not |
| * provided, the root domain "." is used. Special characters in |
| * the domain name must be %-escaped as described in RFC 2396. |
| * |
| * @author Scott Seligman |
| */ |
| |
| |
| public class DnsUrl extends Uri { |
| |
| private String domain; // domain name of the context |
| |
| |
| /** |
| * Given a space-separated list of DNS URLs, returns an array of DnsUrl |
| * objects. |
| */ |
| public static DnsUrl[] fromList(String urlList) |
| throws MalformedURLException { |
| |
| DnsUrl[] urls = new DnsUrl[(urlList.length() + 1) / 2]; |
| int i = 0; // next available index in urls |
| StringTokenizer st = new StringTokenizer(urlList, " "); |
| |
| while (st.hasMoreTokens()) { |
| urls[i++] = new DnsUrl(st.nextToken()); |
| } |
| DnsUrl[] trimmed = new DnsUrl[i]; |
| System.arraycopy(urls, 0, trimmed, 0, i); |
| return trimmed; |
| } |
| |
| public DnsUrl(String url) throws MalformedURLException { |
| super(url); |
| |
| if (!scheme.equals("dns")) { |
| throw new MalformedURLException( |
| url + " is not a valid DNS pseudo-URL"); |
| } |
| |
| domain = path.startsWith("/") |
| ? path.substring(1) |
| : path; |
| domain = domain.equals("") |
| ? "." |
| : UrlUtil.decode(domain); |
| |
| // Debug |
| // System.out.println("host=" + host + " port=" + port + |
| // " domain=" + domain); |
| } |
| |
| /** |
| * Returns the domain of this URL, or "." if none is provided. |
| * Never null. |
| */ |
| public String getDomain() { |
| return domain; |
| } |
| |
| |
| /* |
| // Debug |
| public static void main(String args[]) throws MalformedURLException { |
| DnsUrl[] urls = fromList(args[0]); |
| for (int i = 0; i < urls.length; i++) { |
| System.out.println(urls[i].toString()); |
| } |
| } |
| */ |
| } |