/**
* Called by MetricsRecordImpl.update(). Creates or updates a row in the internal table of metric
* data.
*/
protected void update(MetricsRecord record) {
String recordName = record.getRecordName();
TagMap tagTable = record.getTagTable();
Map<String, MetricValue> metricUpdates = record.getMetricTable();
RecordMap recordMap = getRecordMap(recordName);
synchronized (recordMap) {
MetricMap metricMap = recordMap.get(tagTable);
if (metricMap == null) {
metricMap = new MetricMap();
TagMap tagMap = new TagMap(tagTable); // clone tags
recordMap.put(tagMap, metricMap);
}
for (String metricName : metricUpdates.keySet()) {
MetricValue updateValue = metricUpdates.get(metricName);
Number updateNumber = updateValue.getNumber();
Number currentNumber = metricMap.get(metricName);
if (currentNumber == null || updateValue.isAbsolute()) {
metricMap.put(metricName, updateNumber);
} else {
Number newNumber = sum(updateNumber, currentNumber);
metricMap.put(metricName, newNumber);
}
}
}
}
/**
* Called by MetricsRecordImpl.remove(). Removes any matching row in the internal table of metric
* data. A row matches if it has the same tag names and tag values.
*/
protected void remove(MetricsRecord record) {
String recordName = record.getRecordName();
TagMap tagTable = record.getTagTable();
RecordMap recordMap = getRecordMap(recordName);
recordMap.remove(tagTable);
}
/** Emits the records. */
private void emitRecords() throws IOException {
for (String recordName : bufferedData_.keySet()) {
RecordMap recordMap = bufferedData_.get(recordName);
synchronized (recordMap) {
for (TagMap tagMap : recordMap.keySet()) {
MetricMap metricMap = recordMap.get(tagMap);
OutputRecord outRec = new OutputRecord(tagMap, metricMap);
emitRecord(recordName, outRec);
}
}
}
flush();
}
