[logback-dev] [JIRA] (LOGBACK-995) Standalone rollover gets exception

QOS.CH (JIRA) Fri, 19 May 2017 07:50:24 -0700

Title: Message Title

Not in form of unit test, but simple program.

 
                                                                import ch.qos.logback.classic.AsyncAppender;
import ch.qos.logback.classic.Logger;
import ch.qos.logback.classic.LoggerContext;
import ch.qos.logback.classic.joran.JoranConfigurator;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.Appender;
import ch.qos.logback.core.joran.spi.JoranException;
import ch.qos.logback.core.rolling.RollingFileAppender;
import ch.qos.logback.core.util.StatusPrinter;
import com.google.common.collect.ImmutableMultimap;
import java.io.ByteArrayInputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.sql.CallableStatement;
import java.util.Iterator;
import java.util.Map;
import org.slf4j.LoggerFactory;
import org.xml.sax.InputSource;
/**
 * @author Stanislav Doktorovich
 * @since 2017-05-19
 */
public class LogbackNPE
{
    private static void configureLogback()
    {
        // assume SLF4J is bound to logback in the current environment
        LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();

        try
        {
            JoranConfigurator configurator = new JoranConfigurator();
            configurator.setContext(context);
            // Call context.reset() to clear any previous configuration, e.g. default
            // configuration. For multi-step configuration, omit calling context.reset().
            context.reset();
            String config = "<configuration debug=\"false\" scan=\"false\">\n" +
                            "    <appender name=\"FILE\" class=\"ch.qos.logback.core.rolling.RollingFileAppender\">\n" +
                            "        <file>${prosrm.install.home}/log/1.log</file>\n" +
                            "        <rollingPolicy class=\"ch.qos.logback.core.rolling.TimeBasedRollingPolicy\">\n" +
                            "            <!-- daily rollover -->\n" +
                            "            <fileNamePattern>${prosrm.install.home}/log/1.log.%d{yyyyMMdd}</fileNamePattern>\n" +
                            "            <maxHistory>3</maxHistory>\n" +
                            "            <totalSizeCap>1GB</totalSizeCap>\n" +
                            "        </rollingPolicy>\n" +
                            "    </appender>\n" +
                            "    <root level=\"INFO\">\n" +
                            "        <appender-ref ref=\"FILE\" />\n" +
                            "    </root>\n" +
                            "</configuration>";
            configurator.doConfigure(new ByteArrayInputStream(config.getBytes()));
        }
        catch (JoranException je)
        {
            // StatusPrinter will handle this
        }
        StatusPrinter.printInCaseOfErrorsOrWarnings(context);
    }

    private static void npe() throws Exception
    {

        // assume SLF4J is bound to logback in the current environment
        LoggerContext loggerContext = (LoggerContext) LoggerFactory.getILoggerFactory();

        Logger logger = loggerContext.getLogger(org.slf4j.Logger.ROOT_LOGGER_NAME);
        rollover(logger.iteratorForAppenders());
    }

    private static void rollover(Iterator<Appender<ILoggingEvent>> it)
    {
        for (; it.hasNext(); )
        {
            Appender<ILoggingEvent> appender = it.next();
            if (appender instanceof RollingFileAppender)
            {
                RollingFileAppender rollingFileAppender = (RollingFileAppender) appender;
                rollingFileAppender.rollover();
            }
            else if (appender instanceof AsyncAppender)
            {
                AsyncAppender asyncAppender = (AsyncAppender) appender;
                rollover(asyncAppender.iteratorForAppenders());
            }
        }
    }

    public static void main(String[] args) throws Exception
    {
        configureLogback();
        npe();
    }
}

 
                                                            

output:

 
                                                                Exception in thread "main" java.lang.NullPointerException
at ch.qos.logback.core.rolling.helper.FileFilterUtil.afterLastSlash(FileFilterUtil.java:46)
at ch.qos.logback.core.rolling.TimeBasedRollingPolicy.rollover(TimeBasedRollingPolicy.java:166)
at ch.qos.logback.core.rolling.RollingFileAppender.attemptRollover(RollingFileAppender.java:211)
at ch.qos.logback.core.rolling.RollingFileAppender.rollover(RollingFileAppender.java:190)
at LogbackNPE.rollover(LogbackNPE.java:79)
at LogbackNPE.npe(LogbackNPE.java:68)
at LogbackNPE.main(LogbackNPE.java:92)
46:11,222 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback-test.xml]
46:11,223 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback.groovy]
46:11,223 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback.xml]
46:11,228 |-INFO in ch.qos.logback.classic.BasicConfigurator@27abe2cd - Setting up default configuration.
46:11,372 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction - debug attribute not set
46:11,372 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - About to instantiate appender of type [ch.qos.logback.core.rolling.RollingFileAppender]
46:11,381 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - Naming appender as [FILE]
46:11,408 |-INFO in c.q.l.core.rolling.TimeBasedRollingPolicy@1599771323 - setting totalSizeCap to 1 GB
46:11,424 |-INFO in c.q.l.core.rolling.TimeBasedRollingPolicy@1599771323 - No compression will be used
46:11,426 |-INFO in c.q.l.core.rolling.TimeBasedRollingPolicy@1599771323 - Will use the pattern prosrm.install.home_IS_UNDEFINED/log/1.log.%d{yyyyMMdd} for the active file
46:11,431 |-INFO in c.q.l.core.rolling.DefaultTimeBasedFileNamingAndTriggeringPolicy - The date pattern is 'yyyyMMdd' from file name pattern 'prosrm.install.home_IS_UNDEFINED/log/1.log.%d{yyyyMMdd}'.
46:11,431 |-INFO in c.q.l.core.rolling.DefaultTimeBasedFileNamingAndTriggeringPolicy - Roll-over at midnight.
46:11,437 |-INFO in c.q.l.core.rolling.DefaultTimeBasedFileNamingAndTriggeringPolicy - Setting initial period to Fri May 19 20:46:11 ALMT 2017
46:11,444 |-INFO in ch.qos.logback.core.rolling.RollingFileAppender[FILE] - Active log file name: prosrm.install.home_IS_UNDEFINED/log/1.log
46:11,444 |-INFO in ch.qos.logback.core.rolling.RollingFileAppender[FILE] - File property is set to [prosrm.install.home_IS_UNDEFINED/log/1.log]
46:11,447 |-WARN in ch.qos.logback.core.rolling.RollingFileAppender[FILE] - Encoder has not been set. Cannot invoke its init method.
46:11,447 |-ERROR in ch.qos.logback.core.rolling.RollingFileAppender[FILE] - No encoder set for the appender named "FILE".
46:11,448 |-INFO in ch.qos.logback.classic.joran.action.RootLoggerAction - Setting level of ROOT logger to INFO
46:11,448 |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction - Attaching appender named [FILE] to Logger[ROOT]
46:11,448 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction - End of configuration.
46:11,448 |-INFO in ch.qos.logback.classic.joran.JoranConfigurator@6fdb1f78 - Registering current configuration as safe fallback point
 
                                                            

Add Comment

This message was sent by Atlassian JIRA

_______________________________________________
logback-dev mailing list
logback-dev@qos.ch
http://mailman.qos.ch/mailman/listinfo/logback-dev

[logback-dev] [JIRA] (LOGBACK-995) Standalone rollover gets exception

Reply via email to