package org.apache.logging.log4j.core.filter;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.TimeZone;
import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.Marker;
import org.apache.logging.log4j.core.Filter;
import org.apache.logging.log4j.core.LogEvent;
import org.apache.logging.log4j.core.Logger;
import org.apache.logging.log4j.core.config.Node;
import org.apache.logging.log4j.core.config.plugins.Plugin;
import org.apache.logging.log4j.core.config.plugins.PluginAttribute;
import org.apache.logging.log4j.core.config.plugins.PluginFactory;
import org.apache.logging.log4j.core.util.Clock;
import org.apache.logging.log4j.core.util.ClockFactory;
import org.apache.logging.log4j.message.Message;
import org.apache.logging.log4j.util.PerformanceSensitive;
@Plugin(name = "TimeFilter", category = Node.CATEGORY, elementType = Filter.ELEMENT_TYPE, printObject = true)
@PerformanceSensitive("allocation")
public final class TimeFilter extends AbstractFilter {
private static final Clock CLOCK = ClockFactory.getClock();
private static final long HOUR_MS = 3600000;
private static final long MINUTE_MS = 60000;
private static final long SECOND_MS = 1000;
private final long start;
private final long end;
private final TimeZone timeZone;
private long midnightToday;
private long midnightTomorrow;
private TimeFilter(final long start, final long end, final TimeZone timeZone, final Result onMatch,
final Result onMismatch) {
super(onMatch, onMismatch);
this.start = start;
this.end = end;
this.timeZone = timeZone;
initMidnight(start);
}
void initMidnight(final long now) {
final Calendar calendar = Calendar.getInstance(timeZone);
calendar.setTimeInMillis(now);
calendar.set(Calendar.HOUR_OF_DAY, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
midnightToday = calendar.getTimeInMillis();
calendar.add(Calendar.DATE, 1);
midnightTomorrow = calendar.getTimeInMillis();
}
Result filter(final long currentTimeMillis) {
if (currentTimeMillis >= midnightTomorrow || currentTimeMillis < midnightToday) {
initMidnight(currentTimeMillis);
}
return currentTimeMillis >= midnightToday + start && currentTimeMillis <= midnightToday + end
? onMatch
: onMismatch;
}
@Override
public Result filter(final LogEvent event) {
return filter(event.getTimeMillis());
}
private Result filter() {
return filter(CLOCK.currentTimeMillis());
}
@Override
public Result filter(final Logger logger, final Level level, final Marker marker, final Message msg,
final Throwable t) {
return filter();
}
@Override
public Result filter(final Logger logger, final Level level, final Marker marker, final Object msg,
final Throwable t) {
return filter();
}
@Override
public Result filter(final Logger logger, final Level level, final Marker marker, final String msg,
final Object... params) {
return filter();
}
@Override
public Result filter(final Logger logger, final Level level, final Marker marker, final String msg,
final Object p0) {
return filter();
}
@Override
public Result filter(final Logger logger, final Level level, final Marker marker, final String msg,
final Object p0, final Object p1) {
return filter();
}
@Override
public Result filter(final Logger logger, final Level level, final Marker marker, final String msg,
final Object p0, final Object p1, final Object p2) {
return filter();
}
@Override
public Result filter(final Logger logger, final Level level, final Marker marker, final String msg,
final Object p0, final Object p1, final Object p2, final Object p3) {
return filter();
}
@Override
public Result filter(final Logger logger, final Level level, final Marker marker, final String msg,
final Object p0, final Object p1, final Object p2, final Object p3, final Object p4) {
return filter();
}
@Override
public Result filter(final Logger logger, final Level level, final Marker marker, final String msg,
final Object p0, final Object p1, final Object p2, final Object p3, final Object p4, final Object p5) {
return filter();
}
@Override
public Result filter(final Logger logger, final Level level, final Marker marker, final String msg,
final Object p0, final Object p1, final Object p2, final Object p3, final Object p4, final Object p5,
final Object p6) {
return filter();
}
@Override
public Result filter(final Logger logger, final Level level, final Marker marker, final String msg,
final Object p0, final Object p1, final Object p2, final Object p3, final Object p4, final Object p5,
final Object p6, final Object p7) {
return filter();
}
@Override
public Result filter(final Logger logger, final Level level, final Marker marker, final String msg,
final Object p0, final Object p1, final Object p2, final Object p3, final Object p4, final Object p5,
final Object p6, final Object p7, final Object p8) {
return filter();
}
@Override
public Result filter(final Logger logger, final Level level, final Marker marker, final String msg,
final Object p0, final Object p1, final Object p2, final Object p3, final Object p4, final Object p5,
final Object p6, final Object p7, final Object p8, final Object p9) {
return filter();
}
@Override
public String toString() {
final StringBuilder sb = new StringBuilder();
sb.append("start=").append(start);
sb.append(", end=").append(end);
sb.append(", timezone=").append(timeZone.toString());
return sb.toString();
}
@PluginFactory
public static TimeFilter createFilter(
@PluginAttribute("start") final String start,
@PluginAttribute("end") final String end,
@PluginAttribute("timezone") final String tz,
@PluginAttribute("onMatch") final Result match,
@PluginAttribute("onMismatch") final Result mismatch) {
final long s = parseTimestamp(start, 0);
final long e = parseTimestamp(end, Long.MAX_VALUE);
final TimeZone timeZone = tz == null ? TimeZone.getDefault() : TimeZone.getTimeZone(tz);
final Result onMatch = match == null ? Result.NEUTRAL : match;
final Result onMismatch = mismatch == null ? Result.DENY : mismatch;
return new TimeFilter(s, e, timeZone, onMatch, onMismatch);
}
private static long parseTimestamp(final String timestamp, final long defaultValue) {
if (timestamp == null) {
return defaultValue;
}
final SimpleDateFormat stf = new SimpleDateFormat("HH:mm:ss");
stf.setTimeZone(TimeZone.getTimeZone("UTC"));
try {
return stf.parse(timestamp).getTime();
} catch (final ParseException e) {
LOGGER.warn("Error parsing TimeFilter timestamp value {}", timestamp, e);
return defaultValue;
}
}
}