@Override
public void run() {
String metricPrefix = "";
if (ApplicationConfiguration.isGlobalMetricNamePrefixEnabled()
&& (ApplicationConfiguration.getGlobalMetricNamePrefix() != null))
metricPrefix += ApplicationConfiguration.getGlobalMetricNamePrefix();
if (!metricPrefix.isEmpty() && !metricPrefix.endsWith(".")) metricPrefix += ".";
if (metricCollectorPrefix_ != null) metricPrefix += metricCollectorPrefix_;
if (!metricPrefix.isEmpty() && !metricPrefix.endsWith(".")) metricPrefix += ".";
while (true) {
long readMetricsTimeStart = System.currentTimeMillis();
oldestValidMetricTimestamp_Seconds_ =
Math.round(
(double)
(((double) System.currentTimeMillis()
- (double) ApplicationConfiguration.getMaxMetricAge())
/ 1000));
List<GenericMetricFormat> metrics =
getMetricsFromFile(ApplicationConfiguration.isAlwaysCheckOutputFiles(), metricPrefix);
List<GenericMetricFormat> newMetrics = getNewMetrics(metrics);
for (GenericMetricFormat metric : newMetrics) {
metric.setMetricHashKey(GlobalVariables.metricHashKeyGenerator.incrementAndGet());
if (metric instanceof GraphiteMetric)
GlobalVariables.graphiteMetrics.put(metric.getMetricHashKey(), (GraphiteMetric) metric);
else if (metric instanceof OpenTsdbMetric)
GlobalVariables.openTsdbMetrics.put(metric.getMetricHashKey(), (OpenTsdbMetric) metric);
}
cleanupPreviousMetrics();
String filename = (fileToMonitor_ == null) ? null : fileToMonitor_.getName();
String outputStatusString =
"Finished reading metrics from file. File=\""
+ filename
+ "\", NewMetricCount="
+ newMetrics.size()
+ ", FileTimestamp="
+ previousFileLastModifiedTimestamp_;
if (newMetrics.size() > 0) logger.info(outputStatusString);
else logger.debug(outputStatusString);
long readMetricsTimeElapsed = System.currentTimeMillis() - readMetricsTimeStart;
long sleepTime = checkFilesIntervalInMilliseconds_ - readMetricsTimeElapsed;
Threads.sleepMilliseconds(sleepTime);
}
}
protected List<GenericMetricFormat> getNewMetrics(List<GenericMetricFormat> metrics) {
if ((metrics == null) || metrics.isEmpty()) {
return new ArrayList<>();
}
List<GenericMetricFormat> newMetrics = new ArrayList<>();
for (GenericMetricFormat metric : metrics) {
if (metric.getMetricTimestampInMilliseconds() >= oldestValidMetricTimestamp_Seconds_) {
Long previousGraphiteMetricTimestamp = previousMetricTimestamps_.get(metric.getMetricKey());
if ((previousGraphiteMetricTimestamp == null)
|| (previousGraphiteMetricTimestamp < metric.getMetricTimestampInMilliseconds())) {
newMetrics.add(metric);
previousMetricTimestamps_.put(
metric.getMetricKey(), metric.getMetricTimestampInMilliseconds());
}
}
}
return newMetrics;
}