001    /*
002     * ClusterInfoFinder.java
003     *
004     * Created on May 12, 2003, 2:23 PM
005     *
006     * This file is part of the STAR Scheduler.
007     * Copyright (c) 2002-2006 STAR Collaboration - Brookhaven National Laboratory
008     *
009     * STAR Scheduler is free software; you can redistribute it and/or modify
010     * it under the terms of the GNU General Public License as published by
011     * the Free Software Foundation; either version 2 of the License, or
012     * (at your option) any later version.
013     *
014     * STAR Scheduler is distributed in the hope that it will be useful,
015     * but WITHOUT ANY WARRANTY; without even the implied warranty of
016     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
017     * GNU General Public License for more details.
018     *
019     * You should have received a copy of the GNU General Public License
020     * along with STAR Scheduler; if not, write to the Free Software
021     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
022     */
023    
024    package gov.bnl.star.offline.scheduler.monitor;
025    
026    import java.util.*;
027    
028    /** Polls the monitoring service and retrieves information about the clusters.
029     *
030     * @author  Gabriele Carcassi
031     * @author  Efstratios Efstathiadis
032     */
033    public interface ClusterInfoFinder {
034        /** Returns the cluster information for the given cluster
035         * @param clusterName the name of the cluster to get information about (i.e. rcas.rcf.bnl.gov)
036         * @return the information about the cluster or null if no information is available
037         */    
038        ClusterInfo getClusterInfo(String clusterName);
039    }