1 /* ProxySelector.java -- A proxy selector class
2 Copyright (C) 2006 Free Software Foundation, Inc.
4 This file is part of GNU Classpath.
6 GNU Classpath is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Classpath is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Classpath; see the file COPYING. If not, write to the
18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 Linking this library statically or dynamically with other modules is
22 making a combined work based on this library. Thus, the terms and
23 conditions of the GNU General Public License cover the whole
26 As a special exception, the copyright holders of this library give you
27 permission to link this library with independent modules to produce an
28 executable, regardless of the license terms of these independent
29 modules, and to copy and distribute the resulting executable under
30 terms of your choice, provided that you also meet, for each linked
31 independent module, the terms and conditions of the license of that
32 module. An independent module is a module which is not derived from
33 or based on this library. If you modify this library, you may extend
34 this exception to your version of the library, but you are not
35 obligated to do so. If you do not wish to do so, delete this
36 exception statement from your version. */
40 import gnu.java.net.DefaultProxySelector;
42 import java.io.IOException;
43 import java.util.List;
46 * Class for handling proxies for different connections.
50 public abstract class ProxySelector
53 * Default proxy selector.
55 private static ProxySelector defaultSelector = new DefaultProxySelector();
58 * Creates a new <code>ProxySelector</code> object.
60 public ProxySelector()
66 * Returns the default proxy selector.
68 * @return the default proxy selector
70 * @throws SecurityException If a security manager is installed and it
71 * denies NetPermission("getProxySelector")
73 public static ProxySelector getDefault()
75 SecurityManager sm = System.getSecurityManager();
78 sm.checkPermission(new NetPermission("getProxySelector"));
80 return defaultSelector;
84 * Sets the default proxy selector.
86 * @param selector the defualt proxy selector
88 * @throws SecurityException If a security manager is installed and it
89 * denies NetPermission("setProxySelector")
91 public static void setDefault(ProxySelector selector)
93 SecurityManager sm = System.getSecurityManager();
96 sm.checkPermission(new NetPermission("setProxySelector"));
98 defaultSelector = selector;
102 * Signals to the selector that a proxy was no available.
104 * @throws IllegalArgumentException If one argument is null
106 public abstract void connectFailed(URI uri, SocketAddress address,
107 IOException exception);
110 * Returns the list of proxy settings for a given URI.
112 * @return list of proxy settings
114 * @throws IllegalArgumentException If uri is null
116 public abstract List<Proxy> select(URI uri);