mirror of git://gcc.gnu.org/git/gcc.git
145 lines
3.9 KiB
Java
145 lines
3.9 KiB
Java
/* SimpleSessionContext.java -- memory-only session store.
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Copyright (C) 2006 Free Software Foundation, Inc.
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This file is a 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 of the License, or (at
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your option) 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; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
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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 gnu.javax.net.ssl.provider;
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import gnu.javax.net.ssl.AbstractSessionContext;
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import gnu.javax.net.ssl.Session;
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import gnu.javax.net.ssl.SessionStoreException;
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import java.util.Enumeration;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.Map;
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/**
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* A simple, non-persistent SessionContext.
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*
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* @author csm
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*/
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public final class SimpleSessionContext
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extends AbstractSessionContext
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{
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/**
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* By default, sessions last for 5 minutes.
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*/
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public static final int DEFAULT_TIMEOUT = 300;
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private final HashMap<Session.ID, Session> store;
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private int storeLimit;
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public SimpleSessionContext()
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{
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super(DEFAULT_TIMEOUT);
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storeLimit = 0;
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store = new HashMap<Session.ID, Session>();
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}
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@Override
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protected Session implGet(byte[] sessionId)
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{
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return store.get(new Session.ID(sessionId));
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}
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@Override
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public void load(char[] password) throws SessionStoreException
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{
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// Not supported. Memory-only.
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}
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@Override
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public void put(Session session)
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{
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if (storeLimit > 0 && store.size() >= storeLimit)
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{
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Session oldest = null;
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for (Map.Entry<Session.ID, Session> e : store.entrySet())
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{
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Session s = e.getValue();
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long stamp = s.getLastAccessedTime();
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if (oldest == null || oldest.getLastAccessedTime() > stamp)
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oldest = s;
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}
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store.remove(oldest.id());
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}
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store.put(session.id(), session);
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}
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@Override
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public void remove(byte[] sessionId)
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{
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store.remove(new Session.ID(sessionId));
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}
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@Override
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public void store(char[] password) throws SessionStoreException
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{
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// Not supported. Memory-only.
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}
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public Enumeration getIds()
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{
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return new Enumeration()
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{
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Iterator<Session.ID> it = store.keySet().iterator();
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public boolean hasMoreElements()
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{
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return it.hasNext();
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}
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public Object nextElement()
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{
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return it.next().id();
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}
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};
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}
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public int getSessionCacheSize()
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{
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return storeLimit;
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}
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public void setSessionCacheSize(int size)
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{
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if (size < 0)
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throw new IllegalArgumentException("cache size must be nonnegative");
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this.storeLimit = size;
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}
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}
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