1 /* Copyright (2005-2007) Schibsted Søk AS
2 * This file is part of SESAT.
3 *
4 * SESAT is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU Affero General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
8 *
9 * SESAT is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU Affero General Public License for more details.
13 *
14 * You should have received a copy of the GNU Affero General Public License
15 * along with SESAT. If not, see <http://www.gnu.org/licenses/>.
16 *
17 * AbstractRunningQuery.java
18 *
19 * Created on 16 February 2006, 19:49
20 *
21 */
22
23 package no.sesat.search.run;
24
25 import org.apache.log4j.Logger;
26
27 /**
28 * @version $Id$
29 *
30 */
31 public abstract class AbstractRunningQuery implements RunningQuery {
32
33 private static final Logger LOG = Logger.getLogger(AbstractRunningQuery.class);
34
35 protected final Context context;
36
37 /** Creates a new instance of AbstractRunningQuery */
38 protected AbstractRunningQuery(final Context cxt) {
39 context = cxt;
40 }
41
42
43 /**
44 * Remote duplicate spaces. Leading and trailing spaces will
45 * be preserved
46 * @param query that may conaint duplicate spaces
47 * @return string with duplicate spaces removed
48 */
49 protected static String trimDuplicateSpaces(final String query){
50
51 LOG.trace("trimDuplicateSpaces(" + query + ")");
52
53 return query == null
54 ? null
55 : query.replaceAll("\\s+", " ").trim();
56 }
57
58 }