118 lines
3.5 KiB
Java
118 lines
3.5 KiB
Java
/* ProxySelector.java -- A proxy selector class
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Copyright (C) 2006 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package java.net;
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import gnu.java.net.DefaultProxySelector;
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import java.io.IOException;
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import java.util.List;
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/**
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* Class for handling proxies for different connections.
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*
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* @since 1.5
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*/
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public abstract class ProxySelector
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{
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/**
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* Default proxy selector.
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*/
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private static ProxySelector defaultSelector = new DefaultProxySelector();
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/**
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* Creates a new <code>ProxySelector</code> object.
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*/
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public ProxySelector()
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{
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// Do nothing here.
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}
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/**
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* Returns the default proxy selector.
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*
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* @return the default proxy selector
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*
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* @throws SecurityException If a security manager is installed and it
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* denies NetPermission("getProxySelector")
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*/
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public static ProxySelector getDefault()
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{
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SecurityManager sm = System.getSecurityManager();
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if (sm != null)
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sm.checkPermission(new NetPermission("getProxySelector"));
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return defaultSelector;
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}
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/**
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* Sets the default proxy selector.
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*
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* @param selector the defualt proxy selector
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*
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* @throws SecurityException If a security manager is installed and it
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* denies NetPermission("setProxySelector")
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*/
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public static void setDefault(ProxySelector selector)
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{
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SecurityManager sm = System.getSecurityManager();
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if (sm != null)
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sm.checkPermission(new NetPermission("setProxySelector"));
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defaultSelector = selector;
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}
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/**
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* Signals to the selector that a proxy was no available.
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*
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* @throws IllegalArgumentException If one argument is null
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*/
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public abstract void connectFailed(URI uri, SocketAddress address,
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IOException exception);
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/**
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* Returns the list of proxy settings for a given URI.
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*
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* @return list of proxy settings
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*
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* @throws IllegalArgumentException If uri is null
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*/
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public abstract List<Proxy> select(URI uri);
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}
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