Thank you for your response, Kamal. I added a call to activateOptions()
on each appender, but that still does not work. I set log4j.debug to
true, and I see debug trace for setting the configuration through the
logger_config.properties file, but there is no trace for the appenders
added in the code other than setting the file for the FileAppender -
which I see twice and I've included below:
log4j: setFile called: /home/djohnson/test.txt, true
log4j: setFile ended
log4j: setFile called: /home/djohnson/test.txt, true
log4j: setFile ended
Thank you so much for your help! Here's the code after I added the call
to activateOptions():
try {
PatternLayout layout;
String loggerPropFile = properties.getProperty("ngl.config",null);
String loggerName = properties.getProperty("ngl.logger.name", null);
if (loggerPropFile != null)
{
PropertyConfigurator.configure(loggerPropFile);
}
logger = Logger.getLogger(loggerName);
Enumeration en = logger.getAllAppenders();
int nbrOfAppenders = 0;
while (en.hasMoreElements()) {
nbrOfAppenders++;
Object ap = en.nextElement();
}
if (nbrOfAppenders > 1) {
return;
}
try {
if ("true".equals(properties
.getProperty("ngl.console", "false"))) {
layout = new PatternLayout("%d [%t] %-5p %m%n");
ConsoleAppender cnslAppndr = new ConsoleAppender(layout);
logger.addAppender(cnslAppndr);
cnslAppndr.activateOptions();
}
} catch (RuntimeException e) {
handleException(e);
}
try {
String logfile = properties.getProperty("ngl.logfile", null);
if (logfile != null) {
layout = new PatternLayout("%d [%t] %-5p %m%n");
FileAppender fileAppender = new FileAppender(layout, logfile);
logger.addAppender(fileAppender);
fileAppender.activateOptions();
}
} catch (RuntimeException e) {
handleException(e);
}
} catch (Exception ex) {
handleException(ex);
}
________________________________
From: Kamal Ahmed [mailto:[EMAIL PROTECTED]
Sent: Tuesday, September 19, 2006 3:57 PM
To: Log4J Users List
Subject: RE: Add appender programmatically after logger configured
initially with PropertyConfigurator
Donna,
I think you have to call activateOptions() method on your Appenders.
Also what error message / debug trace are you getting?
Hope this helps.
-Kamal.
________________________________
From: Donna Johnson [mailto:[EMAIL PROTECTED]
Sent: Tuesday, September 19, 2006 4:48 PM
To: log4j-user@logging.apache.org
Subject: Add appender programmatically after logger configured initially
with PropertyConfigurator
I am trying to add a couple of appenders to my logger in the code based
on flags in the application's properties file. I configure the logger
with an appender in the logger.properties file initially and I want to
add appenders to that programmatically. I add a console appender as
well as a file appender (based on the flags). Nothing is being logged
to either the console or the file, even though the file is being
created. Any help is very much appreciated!
Here is the logger.properties file:
# Logger for Errors/Debugging (Syslog)
log4j.logger.error=DEBUG, A1
log4j.appender.A1=org.apache.log4j.net.SyslogAppender
log4j.appender.A1.syslogHost=localhost
log4j.appender.A1.facility=LOCAL5
log4j.appender.A1.layout=org.apache.log4j.PatternLayout
log4j.appender.A1.layout.ConversionPattern=%d [%t] %-5p %m%n
# Logger for stats
log4j.logger.stats=INFO,A2
log4j.appender.A2=org.apache.log4j.RollingFileAppender
log4j.appender.A2.File=./cust/properties/stats
log4j.appender.A2.MaxFileSize=10MB
log4j.appender.A2.MaxBackupIndex=1
log4j.appender.A2.layout=org.apache.log4j.PatternLayout
log4j.appender.A2.layout.ConversionPattern=%d %m%n
Here is the application properties file:
# Log to console
ngl.console=true
# Log to local5 (Unix only)
ngl.syslog=localhost:local5
# Log to a disk file
ngl.logfile=./cust/properties/test.txt
# Logging level (can be DEBUG, INFO, WARN, ERROR, or CRITICAL|FATAL)
ngl.level=DEBUG
# Host name that will print out on each log line
ngl.hostname=localhost
# If true, writes abbreviated log header with only level and message
ngl.brief=false
ngl.config=./cust/properties/logger_config.properties
ngl.logger.name=error
Here is the actual code to initialize the logger:
try {
PatternLayout layout;
String loggerPropFile = properties.getProperty("ngl.config",null);
String loggerName = properties.getProperty("ngl.logger.name", null);
if (loggerPropFile != null)
{
PropertyConfigurator.configure(loggerPropFile);
}
logger = Logger.getLogger(loggerName);
Enumeration en = logger.getAllAppenders();
int nbrOfAppenders = 0;
while (en.hasMoreElements()) {
nbrOfAppenders++;
Object ap = en.nextElement();
}
if (nbrOfAppenders > 1) {
return;
}
try {
if ("true".equals(properties
.getProperty("ngl.console", "false"))) {
layout = new PatternLayout("%d [%t] %-5p %m%n");
logger.addAppender(new ConsoleAppender(layout));
}
} catch (RuntimeException e) {
handleException(e);
}
try {
String logfile = properties.getProperty("ngl.logfile", null);
if (logfile != null) {
layout = new PatternLayout("%d [%t] %-5p %m%n");
logger.addAppender(new FileAppender(layout, logfile));
}
} catch (RuntimeException e) {
handleException(e);
}
} catch (Exception ex) {
handleException(ex);
}
Donna Johnson
Sr. Programmer Analyst
FedEx
10 Fedex Pkwy
2nd Floor Horizontal
Collierville, TN 38017
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