// Initialize class attributes.
// Load properties file, if found.
// Override with system properties.
static void init() {
INITIALIZED = true;
loadProperties();
String defaultLogLevelString = getStringProperty(DEFAULT_LOG_LEVEL_KEY, null);
if (defaultLogLevelString != null) DEFAULT_LOG_LEVEL = stringToLevel(defaultLogLevelString);
SHOW_LOG_NAME = getBooleanProperty(SHOW_LOG_NAME_KEY, SHOW_LOG_NAME);
SHOW_SHORT_LOG_NAME = getBooleanProperty(SHOW_SHORT_LOG_NAME_KEY, SHOW_SHORT_LOG_NAME);
SHOW_DATE_TIME = getBooleanProperty(SHOW_DATE_TIME_KEY, SHOW_DATE_TIME);
SHOW_THREAD_NAME = getBooleanProperty(SHOW_THREAD_NAME_KEY, SHOW_THREAD_NAME);
DATE_TIME_FORMAT_STR = getStringProperty(DATE_TIME_FORMAT_KEY, DATE_TIME_FORMAT_STR);
LEVEL_IN_BRACKETS = getBooleanProperty(LEVEL_IN_BRACKETS_KEY, LEVEL_IN_BRACKETS);
LOG_FILE = getStringProperty(LOG_FILE_KEY, LOG_FILE);
TARGET_STREAM = computeTargetStream(LOG_FILE);
if (DATE_TIME_FORMAT_STR != null) {
try {
DATE_FORMATTER = new SimpleDateFormat(DATE_TIME_FORMAT_STR);
} catch (IllegalArgumentException e) {
Util.report("Bad date format in " + CONFIGURATION_FILE + "; will output relative time", e);
}
}
}
private StaticLoggerBinder() {
loggerFactory = new Log4jLoggerFactory();
try {
@SuppressWarnings("unused")
Level level = Level.TRACE;
} catch (NoSuchFieldError nsfe) {
Util.report(
"This version of SLF4J requires log4j version 1.2.12 or later. See also http://www.slf4j.org/codes.html#log4j_version");
}
}
private static PrintStream computeTargetStream(String logFile) {
if ("System.err".equalsIgnoreCase(logFile)) return System.err;
else if ("System.out".equalsIgnoreCase(logFile)) {
return System.out;
} else {
try {
FileOutputStream fos = new FileOutputStream(logFile);
PrintStream printStream = new PrintStream(fos);
return printStream;
} catch (FileNotFoundException e) {
Util.report("Could not open [" + logFile + "]. Defaulting to System.err", e);
return System.err;
}
}
}