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