01: package net.sourceforge.squirrel_sql.client;
02:
03: /*
04: * Copyright (C) 2001-2006 Colin Bell
05: * colbell@users.sourceforge.net
06: *
07: * This library is free software; you can redistribute it and/or
08: * modify it under the terms of the GNU Lesser General Public
09: * License as published by the Free Software Foundation; either
10: * version 2.1 of the License, or (at your option) any later version.
11: *
12: * This library 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 GNU
15: * Lesser General Public License for more details.
16: *
17: * You should have received a copy of the GNU Lesser General Public
18: * License along with this library; if not, write to the Free Software
19: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20: */
21: import java.io.File;
22: import java.io.IOException;
23:
24: import org.apache.log4j.DailyRollingFileAppender;
25: import org.apache.log4j.PatternLayout;
26:
27: import net.sourceforge.squirrel_sql.client.util.ApplicationFiles;
28:
29: /**
30: * This log4j appender writes out to the
31: * <TT>ApplicationFiles.getExecutionLogFile()</TT> file.
32: *
33: * @author <A HREF="mailto:colbell@users.sourceforge.net">Colin Bell</A>
34: */
35: public class SquirrelAppender extends DailyRollingFileAppender {
36: /**
37: * Default ctor.
38: */
39: public SquirrelAppender() throws IOException {
40: super (new PatternLayout("%-4r [%t] %-5p %c %x - %m%n"),
41: getLogFile().getAbsolutePath(), "'.'yyyy-ww");
42: }
43:
44: /**
45: * Retrieve the file to write the execution log to.
46: *
47: * @return File to write execution log to.
48: */
49: private static File getLogFile() {
50: final File logFile = new ApplicationFiles()
51: .getExecutionLogFile();
52: if (logFile == null) {
53: throw new IllegalStateException(
54: "null ExecutionLogFile in ApplicationFiles");
55: }
56: return logFile;
57: }
58: }
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