17 */ |
17 */ |
18 package info.globalcode.sql.dk.logging; |
18 package info.globalcode.sql.dk.logging; |
19 |
19 |
20 import info.globalcode.sql.dk.Constants; |
20 import info.globalcode.sql.dk.Constants; |
21 import java.util.logging.ConsoleHandler; |
21 import java.util.logging.ConsoleHandler; |
|
22 import java.util.logging.Handler; |
22 import java.util.logging.Level; |
23 import java.util.logging.Level; |
23 import java.util.logging.Logger; |
24 import java.util.logging.Logger; |
24 |
25 |
25 /** |
26 /** |
26 * Configures logging subsystem. |
27 * Configures logging subsystem. |
28 * |
29 * |
29 * @author Ing. František Kučera (frantovo.cz) |
30 * @author Ing. František Kučera (frantovo.cz) |
30 */ |
31 */ |
31 public class LoggerInitializer { |
32 public class LoggerInitializer { |
32 |
33 |
|
34 private static final Logger log = Logger.getLogger(LoggerInitializer.class.getName()); |
|
35 public static final String LEVEL_PROPERTY = LoggerInitializer.class.getName() + ".level"; |
|
36 private static final Level DEFAULT_LEVEL = Level.INFO; |
|
37 |
33 public LoggerInitializer() { |
38 public LoggerInitializer() { |
34 Logger logger = Logger.getLogger(Constants.JAVA_PACKAGE); |
39 Logger logger = Logger.getLogger(Constants.JAVA_PACKAGE); |
35 ConsoleHandler handler = new ConsoleHandler(); |
40 ConsoleHandler handler = new ConsoleHandler(); |
36 ColorfulConsoleFormatter formatter = new ColorfulConsoleFormatter(); |
41 ColorfulConsoleFormatter formatter = new ColorfulConsoleFormatter(); |
37 |
42 |
38 logger.addHandler(handler); |
43 logger.addHandler(handler); |
39 handler.setFormatter(formatter); |
44 handler.setFormatter(formatter); |
40 |
45 |
41 handler.setLevel(Level.INFO); |
46 setLevel(logger, handler); |
42 logger.setLevel(Level.INFO); |
|
43 |
47 |
44 |
48 |
45 /** |
49 /** |
46 * TODO: FileHandler – detailed logs in file in ~/sql-dk/log/… |
50 * TODO: FileHandler – detailed logs in file in ~/sql-dk/log/… |
47 */ |
51 */ |
48 } |
52 } |
|
53 |
|
54 private void setLevel(Logger logger, Handler handler) { |
|
55 boolean levelParseError = false; |
|
56 Level level; |
|
57 String cliLevel = System.getProperty(LEVEL_PROPERTY); |
|
58 if (cliLevel == null) { |
|
59 level = DEFAULT_LEVEL; |
|
60 } else { |
|
61 try { |
|
62 level = Level.parse(cliLevel); |
|
63 } catch (IllegalArgumentException e) { |
|
64 level = DEFAULT_LEVEL; |
|
65 levelParseError = true; |
|
66 } |
|
67 } |
|
68 |
|
69 handler.setLevel(level); |
|
70 logger.setLevel(level); |
|
71 |
|
72 if (levelParseError) { |
|
73 log.log(Level.WARNING, "Invalid logging level „{0}“ specified in „{1}“ → using default level „{2}“", new Object[]{cliLevel, LEVEL_PROPERTY, DEFAULT_LEVEL}); |
|
74 } |
|
75 } |
49 } |
76 } |