/* * Copyright (c) 2001, 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.java.browser.net; import java.net.URL; import java.io.IOException; /** * * @author Zhengyu Gu */ public class ProxyService extends Object { private static ProxyServiceProvider provider = null; public static void setProvider(ProxyServiceProvider p) throws IOException { if(null == provider) provider = p; else throw new IOException("Proxy service provider has already been set."); } /** * <p>The function returns proxy information of the specified URL.</p> * @param url URL * @return returns proxy information. If there is not proxy, returns null * @since 1.4 */ public static ProxyInfo[] getProxyInfo(URL url) throws IOException { if(null == provider) throw new IOException("Proxy service provider is not yet set"); return provider.getProxyInfo(url); } }