| /* ProxySelector.java -- A proxy selector class |
| Copyright (C) 2006 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath 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, or (at your option) |
| any later version. |
| |
| GNU Classpath 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 GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| package java.net; |
| |
| import gnu.java.net.DefaultProxySelector; |
| |
| import java.io.IOException; |
| import java.util.List; |
| |
| /** |
| * Class for handling proxies for different connections. |
| * |
| * @since 1.5 |
| */ |
| public abstract class ProxySelector |
| { |
| /** |
| * Default proxy selector. |
| */ |
| private static ProxySelector defaultSelector = new DefaultProxySelector(); |
| |
| /** |
| * Creates a new <code>ProxySelector</code> object. |
| */ |
| public ProxySelector() |
| { |
| // Do nothing here. |
| } |
| |
| /** |
| * Returns the default proxy selector. |
| * |
| * @return the default proxy selector |
| * |
| * @throws SecurityException If a security manager is installed and it |
| * denies NetPermission("getProxySelector") |
| */ |
| public static ProxySelector getDefault() |
| { |
| SecurityManager sm = System.getSecurityManager(); |
| |
| if (sm != null) |
| sm.checkPermission(new NetPermission("getProxySelector")); |
| |
| return defaultSelector; |
| } |
| |
| /** |
| * Sets the default proxy selector. |
| * |
| * @param selector the defualt proxy selector |
| * |
| * @throws SecurityException If a security manager is installed and it |
| * denies NetPermission("setProxySelector") |
| */ |
| public static void setDefault(ProxySelector selector) |
| { |
| SecurityManager sm = System.getSecurityManager(); |
| |
| if (sm != null) |
| sm.checkPermission(new NetPermission("setProxySelector")); |
| |
| defaultSelector = selector; |
| } |
| |
| /** |
| * Signals to the selector that a proxy was no available. |
| * |
| * @throws IllegalArgumentException If one argument is null |
| */ |
| public abstract void connectFailed(URI uri, SocketAddress address, |
| IOException exception); |
| |
| /** |
| * Returns the list of proxy settings for a given URI. |
| * |
| * @return list of proxy settings |
| * |
| * @throws IllegalArgumentException If uri is null |
| */ |
| public abstract List<Proxy> select(URI uri); |
| } |