Examples with Appender org.apache.log4j.Appender used on opensource projects

Example 16 with Appender

use of org.apache.log4j.Appender in project symmetric-ds by JumpMind.

the class SnapshotUtil method findSymmetricLogFile.

@SuppressWarnings("unchecked")
public static Map<File, Layout> findSymmetricLogFile() {
    Enumeration<Appender> appenders = org.apache.log4j.Logger.getRootLogger().getAllAppenders();
    while (appenders.hasMoreElements()) {
        Appender appender = appenders.nextElement();
        if (appender instanceof FileAppender) {
            FileAppender fileAppender = (FileAppender) appender;
            if (fileAppender != null) {
                File file = new File(fileAppender.getFile());
                if (file != null && file.exists()) {
                    Map<File, Layout> matches = new HashMap<File, Layout>();
                    matches.put(file, fileAppender.getLayout());
                    return matches;
                }
            }
        }
    }
    return null;
}

Example 17 with Appender

use of org.apache.log4j.Appender in project voltdb by VoltDB.

the class RealVoltDB method scheduleDailyLoggingWorkInNextCheckTime.

/**
     * Get the next check time for a private member in log4j library, which is not a reliable idea.
     * It adds 30 seconds for the initial delay and uses a periodical thread to schedule the daily logging work
     * with this delay.
     * @return
     */
void scheduleDailyLoggingWorkInNextCheckTime() {
    DailyRollingFileAppender dailyAppender = null;
    Enumeration<?> appenders = Logger.getRootLogger().getAllAppenders();
    while (appenders.hasMoreElements()) {
        Appender appender = (Appender) appenders.nextElement();
        if (appender instanceof DailyRollingFileAppender) {
            dailyAppender = (DailyRollingFileAppender) appender;
        }
    }
    final DailyRollingFileAppender dailyRollingFileAppender = dailyAppender;
    Field field = null;
    if (dailyRollingFileAppender != null) {
        try {
            field = dailyRollingFileAppender.getClass().getDeclaredField("nextCheck");
            field.setAccessible(true);
        } catch (NoSuchFieldException e) {
            hostLog.error("Failed to set daily system info logging: " + e.getMessage());
        }
    }
    final Field nextCheckField = field;
    long nextCheck = System.currentTimeMillis();
    // the next part may throw exception, current time is the default value
    if (dailyRollingFileAppender != null && nextCheckField != null) {
        try {
            nextCheck = nextCheckField.getLong(dailyRollingFileAppender);
            scheduleWork(new DailyLogTask(), nextCheck - System.currentTimeMillis() + 30 * 1000, 0, TimeUnit.MILLISECONDS);
        } catch (Exception e) {
            hostLog.error("Failed to set daily system info logging: " + e.getMessage());
        }
    }
}

Example 18 with Appender

use of org.apache.log4j.Appender in project Activiti by Activiti.

the class MDCLoggingTest method setCustomLogger.

private void setCustomLogger() {
    String PATTERN = "Modified Log *** ProcessDefinitionId=%X{mdcProcessDefinitionID} executionId=%X{mdcExecutionId} mdcProcessInstanceID=%X{mdcProcessInstanceID} mdcBusinessKey=%X{mdcBusinessKey} mdcTaskId=%X{mdcTaskId}  %m%n";
    console.setLayout(new PatternLayout(PATTERN));
    console.setThreshold(Level.DEBUG);
    console.activateOptions();
    console.setName("MemoryAppender");
    appenders = new ArrayList<Appender>();
    Enumeration<?> appendersEnum = Logger.getRootLogger().getAllAppenders();
    while (appendersEnum.hasMoreElements()) {
        Appender object = (Appender) appendersEnum.nextElement();
        appenders.add(object);
    }
    removeAppenders();
    Logger.getRootLogger().addAppender(console);
}

Example 19 with Appender

use of org.apache.log4j.Appender in project Activiti by Activiti.

the class MDCLoggingTest method removeAppenders.

private void removeAppenders() {
    Enumeration<?> appendersEnum = Logger.getRootLogger().getAllAppenders();
    while (appendersEnum.hasMoreElements()) {
        Appender object = (Appender) appendersEnum.nextElement();
        Logger.getRootLogger().removeAppender(object);
    }
}

Example 20 with Appender

use of org.apache.log4j.Appender in project ats-framework by Axway.

the class RemoteLoggingConfigurator method revert.

@Override
@SuppressWarnings("unchecked")
public void revert() {
    if (appenderLogger != null && needsToConfigureDbAppender) {
        // there is a DB appender and it is out-of-date
        //remove the filter which will deny logging of system events
        Logger rootLogger = Logger.getRootLogger();
        Enumeration<Appender> appenders = rootLogger.getAllAppenders();
        while (appenders.hasMoreElements()) {
            Appender appender = appenders.nextElement();
            //remove the filter
            //FIXME:This is very risky, as someone may have added other filters
            //the current implementation of the filter chain in log4j will not allow
            //us to easily remove a single filter
            appender.clearFilters();
        }
        Category log;
        if ("root".equals(appenderLogger)) {
            log = Logger.getRootLogger();
        } else {
            log = Logger.getLogger(appenderLogger);
        }
        Appender dbAppender = PassiveDbAppender.getCurrentInstance(ThreadsPerCaller.getCaller());
        if (dbAppender != null) {
            //close the appender
            dbAppender.close();
            //remove it
            log.removeAppender(dbAppender);
        }
    }
// in case we must reconfigure the custom loggers, here we should remove them from log4j, 
// but log4j does not provide a way to do it - so we do nothing here 
}