JVMUptimeParser.java

package glug.parser.logmessages;

import static java.awt.Color.YELLOW;
import static java.lang.Double.parseDouble;
import static java.lang.Math.round;

import com.google.common.collect.Sets;
import glug.model.IntervalTypeDescriptor;
import glug.model.SignificantInterval;
import glug.model.SignificantIntervalOccupier;
import glug.model.ThreadModel;
import glug.model.time.LogInstant;
import glug.model.time.LogInterval;

import java.util.regex.MatchResult;
import java.util.regex.Pattern;

import org.joda.time.Duration;


public class JVMUptimeParser extends LogMessageParser {
	
	private final static Pattern JVM_UPTIME_PATTERN = Pattern.compile("JVM uptime: (.*) seconds");
	private static final IntervalTypeDescriptor intervalTypeDescriptor = new IntervalTypeDescriptor(YELLOW,"JVM Uptime");
	private final static SignificantIntervalOccupier jvmUptime = intervalTypeDescriptor.with(null);

	public JVMUptimeParser() {
		super(Sets.newHashSet("com.gu.r2.common.diagnostic.CacheStatisticsLoggingTimerTask"), JVM_UPTIME_PATTERN);
	}

	@Override
	public SignificantInterval process(MatchResult matcher, ThreadModel threadModel, LogInstant logInstant) {
		String uptimeText = matcher.group(1);
		Duration d = new Duration(round((parseDouble(uptimeText)*1000)));
		
		threadModel.getThreadedSystem().uptime().addUptime(new LogInterval(d,logInstant));
		return null;
	}
	
}