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package org.openslx.imagemaster.serversession;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.UUID;
import org.apache.log4j.Logger;
import org.openslx.imagemaster.session.SessionManager;
import org.openslx.imagemaster.thrift.iface.ServerSessionData;
import org.openslx.imagemaster.util.Hash;
/**
* Manages all server sessions and kicks timed out sessions.
*/
public class ServerSessionManager
{
private static Logger log = Logger.getLogger( SessionManager.class );
// Map of currently known sessions
private static final Map<String, ServerSession> serverSessions = new LinkedHashMap<String, ServerSession>();
private static final Thread gcThread;
public static ServerSessionData addSession( ServerSession serverSession )
{
final String sessionId = Hash.sha256( UUID.randomUUID().toString() );
synchronized ( serverSessions ) {
serverSessions.put( sessionId, serverSession );
}
return new ServerSessionData( sessionId );
}
public static ServerSession getSession( String sessionId )
{
final ServerSession serverSession;
synchronized ( serverSessions ) {
serverSession = serverSessions.get( sessionId );
}
if ( serverSession == null || serverSession.timedOut() ) {
return null;
}
serverSession.refresh();
return serverSession;
}
static {
gcThread = new Thread( new Runnable() {
@Override
public void run()
{
for ( ;; ) {
try {
Thread.sleep( 1800L * 1000L );
} catch ( InterruptedException e ) {
}
synchronized ( serverSessions ) {
Iterator<ServerSession> it = serverSessions.values().iterator();
while ( it.hasNext() ) {
final ServerSession s = it.next();
if ( s.timedOut() ) {
log.debug( "Removing old session of " + s.getOrganization() );
it.remove();
}
}
}
}
}
} );
gcThread.start();
}
}
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