Below are the programmatic configurations of consoleAppender and LogAppenders which I have converted for log4j upgrade from 1.. to 2.17.1 version.
//Programmatic configuration of ConsoleAppender log4j2
String pattern = "%d{DATE} [%p|%C{2}] %m%n";
ConfigurationBuilder<BuiltConfiguration> builder =
ConfigurationBuilderFactory.newConfigurationBuilder();
builder.setConfigurationName("DefaultLogger");
// Create pattern layout
LayoutComponentBuilder layoutBuilder = builder.newLayout("PatternLayout")
.addAttribute("pattern", pattern);
AppenderComponentBuilder appenderBuilder = builder.newAppender("Console", "CONSOLE")
.addAttribute("target", ConsoleAppender.Target.SYSTEM_OUT);
appenderBuilder.add(layoutBuilder);
builder.add(appenderBuilder);
RootLoggerComponentBuilder rootLogger
= builder.newRootLogger(Level.DEBUG);
rootLogger.add(builder.newAppenderRef("Console"));
builder.add(rootLogger);
Configurator.initialize(builder.build());
Configurator.reconfigure(builder.build());
//RollingFileAppender Programmatic configuration log4j2:
CdasLogger() {
// CreateLogger takes a path for each logger from config file
loadLog = createLogger("load.log");
updateLog = createLogger("update.log");
userLog = createLogger("user.log");
}
private Logger createLogger(String logType) {
String pattern = "%d %M - %m%n";
String consolePattern = "%d{DATE} [%p|%C{2}] %m%n";
String fileLogName = "/app/app.log";
String filePattern = "/app/app.log-%d{MM-dd-yy}.log.gz";
System.out.println("logtype is::" + logType);
String path = ConfigReader.getStringValue(logType);
System.out.println(path);
String daily = "0 0 12 1/1 * ? *";
// Initializing the logger context
LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
ConfigurationBuilder<BuiltConfiguration> builder =
ConfigurationBuilderFactory.newConfigurationBuilder();
builder.setConfigurationName("rollingFileLogger");
//specifying the pattern layout
LayoutComponentBuilder layoutBuilder = builder.newLayout("PatternLayout")
.addAttribute("pattern", pattern);
//specifying the policy for rolling file
ComponentBuilder triggeringPolicy = builder.newComponent("Policies")
. addComponent(builder.newComponent("SizeBasedTriggeringPolicy").addAttribute("size", "10MB"));
//create a rollingfile appender
AppenderComponentBuilder appenderBuilder = builder.newAppender("rollingFile", "RollingFile")
.addAttribute("fileName", path)
.addAttribute("filePattern", path+"-%d{MM-dd-yy-HH-mm-ss}.log.")
.add(layoutBuilder)
.addComponent(triggeringPolicy);
builder.add(appenderBuilder);
RootLoggerComponentBuilder rootLogger = builder.newRootLogger(Level.TRACE);
rootLogger.add(builder.newAppenderRef("rollingFile"));
builder.add(rootLogger);
ctx = Configurator.initialize(builder.build());
Configurator.reconfigure(builder.build());
return ctx.getLogger(logType); // return the logger to the caller
}
Console Appender gets initialized first and the logs are written. After Initializing the rollingfileappender. All the logs are getting written to rollingfile Appender. There are no logs to consoleAppender once the rollingfile appender is initalized.
EDIT 1:
As per Piotr comments, I made the below change to have same configuration builder for all the appenders.
private void configureLogger() {
ConfigurationBuilder<BuiltConfiguration> builder = ConfigurationBuilderFactory.newConfigurationBuilder();
LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
// create a console appender
AppenderComponentBuilder console
= builder.newAppender("stdout", "Console").addAttribute("target",
ConsoleAppender.Target.SYSTEM_OUT);
console.add(builder.newLayout("PatternLayout").addAttribute("pattern",
"%d{DATE} [%p|%C{2}] %m%n"));
RootLoggerComponentBuilder rootLogger
= builder.newRootLogger(Level.DEBUG);
rootLogger.add(builder.newAppenderRef("stdout"));
builder.add(console);
// create a rolling file appender
String pattern = "%d %M - %m%n";
//specifying the pattern layout
LayoutComponentBuilder layoutBuilder = builder.newLayout("PatternLayout")
.addAttribute("pattern", pattern);
//specifying the policy for rolling file
ComponentBuilder triggeringPolicy = builder.newComponent("Policies")
.addComponent(builder.newComponent("SizeBasedTriggeringPolicy").addAttribute("size", "10MB"));
String[] logTypes = {"load.log", "update.log", "user.log"};
for (String logType : logTypes) {
System.out.println("logtype is::" + logType);
String path = ConfigReader.getStringValue(logType);
System.out.println(path);
AppenderComponentBuilder appenderBuilder = builder.newAppender(logType, "RollingFile")
.addAttribute("fileName", path == null ? "/app1/app.log" : path)
.addAttribute("filePattern", path == null ? "/app1/app.log" : path+"-%d{MM-dd-yy-HH-mm-ss}.log.")
.add(layoutBuilder)
.addComponent(triggeringPolicy);
builder.add(appenderBuilder);
rootLogger.add(builder.newAppenderRef(logType));
}
builder.add(rootLogger);
Configurator.reconfigure(builder.build());
}
The logs are not updating still.
calling configureLogger() method during app start up.
In another class I have the code below
public class CdasLogger {
private final Logger updateLog, loadLog, userLog;
CdasLogger() {
loadLog = createLogger("load.log");
updateLog = createLogger("update.log");
userLog = createLogger("user.log");
}
private Logger createLogger(String logType) {
LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
return ctx.getLogger(logType);
}
}
