1 /*
2 * PROJECT : DAR Runtime and Tools
3 * COPYRIGHT : Copyright (C) 1999-2004 tim.stephenson@enableit.org
4 * LICENSE : GNU LESSER GENERAL PUBLIC LICENSE
5 * Version 2.1, February 1999
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21 package org.enableit.db.darrt.resolvers;
22
23
24 // Java imports
25 import java.io.StringWriter;
26
27 import org.apache.log4j.Logger;
28 import org.enableit.db.beans.Provider;
29 import org.enableit.db.beans.RowSet;
30 import org.enableit.db.darrt.ConflictResolver;
31
32
33 /***
34 * Does nothing to the row set except log it to this class' logger.
35 * @author Tim Stephenson
36 */
37 public class LoggingConflictResolver implements ConflictResolver {
38 /*
39 * Properties
40 */
41
42 /***
43 * The Log4J <code>Logger</code> doing the logging.
44 */
45 private static Logger logger = Logger.getLogger(LoggingConflictResolver.class);
46
47 /***
48 * CVS info ABOUT this class and its current version
49 */
50 public static final String about = "$Revision $";
51
52 /*
53 * Constructors
54 */
55
56 /***
57 * Default Constructor
58 */
59 public LoggingConflictResolver() {
60 }
61
62 /*
63 * Methods
64 */
65
66 /***
67 * Does nothing to the row set except log it to this class' logger,
68 * provided that the logger has 'DEBUG' enabled.
69 */
70 public RowSet resolve(Provider target, RowSet rows) {
71 if (logger.isDebugEnabled()) {
72 try {
73 StringWriter out = new StringWriter();
74
75 rows.marshal(out);
76 out.flush();
77 logger.debug(out.toString());
78 } catch (org.exolab.castor.xml.MarshalException e) {
79 logger.error(e.getMessage());
80 } catch (org.exolab.castor.xml.ValidationException e) {
81 logger.error(e.getMessage());
82 }
83 }
84
85 return rows;
86 }
87 }
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