/* Copyright (2005-2007) Schibsted Søk AS

  * This file is part of SESAT.

  *

  *   SESAT is free software: you can redistribute it and/or modify

  *   it under the terms of the GNU Affero General Public License as published by

  *   the Free Software Foundation, either version 3 of the License, or

  *   (at your option) any later version.

  *

  *   SESAT 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 Affero General Public License for more details.

  *

  *   You should have received a copy of the GNU Affero General Public License

  *   along with SESAT.  If not, see <http://www.gnu.org/licenses/>.

  *

  * AbstractRunningQuery.java

  *

  * Created on 16 February 2006, 19:49

  *

  */

 package no.sesat.search.run;

 import org.apache.log4j.Logger;

 /**

  * @version $Id$

  *

  */

 public abstract class AbstractRunningQuery implements RunningQuery {

     private static final Logger LOG = Logger.getLogger(AbstractRunningQuery.class);

     protected final Context context;

     /** Creates a new instance of AbstractRunningQuery */

     protected AbstractRunningQuery(final Context cxt) {

         context = cxt;

     }

     /**

      * Remote duplicate spaces. Leading and trailing spaces will

      * be preserved

      * @param query that may conaint duplicate spaces

      * @return string with duplicate spaces removed

      */

     protected static String trimDuplicateSpaces(final String query){

         LOG.trace("trimDuplicateSpaces(" + query + ")");

         return query == null

                 ? null

                 : query.replaceAll("\\s+", " ").trim();

     }

 }