nahguam commented on code in PR #15558:
URL: https://github.com/apache/pulsar/pull/15558#discussion_r908193576
##########
pulsar-broker/src/test/java/org/apache/pulsar/broker/stats/PrometheusMetricsTest.java:
##########
@@ -1501,6 +1503,59 @@ private void compareCompactionStateCount(List<Metric>
cm, double count) {
assertEquals(cm.get(0).value, count);
}
+ @Test
+ public void testMetricsGroupedByTypeDefinitions() throws Exception {
+ Producer<byte[]> p1 =
pulsarClient.newProducer().topic("persistent://my-property/use/my-ns/my-topic1").create();
+ Producer<byte[]> p2 =
pulsarClient.newProducer().topic("persistent://my-property/use/my-ns/my-topic2").create();
+ for (int i = 0; i < 10; i++) {
+ String message = "my-message-" + i;
+ p1.send(message.getBytes());
+ p2.send(message.getBytes());
+ }
+
+ ByteArrayOutputStream statsOut = new ByteArrayOutputStream();
+ PrometheusMetricsGenerator.generate(pulsar, false, false, false,
statsOut);
+ String metricsStr = statsOut.toString();
+
+ Pattern typePattern =
Pattern.compile("^#\\s+TYPE\\s+(\\w+)\\s+(\\w+)");
+ Pattern metricNamePattern = Pattern.compile("^(\\w+)\\{.+");
+
+ AtomicReference<String> currentMetric = new AtomicReference<>();
+ Splitter.on("\n").split(metricsStr).forEach(line -> {
+ if (line.isEmpty()) {
+ return;
+ }
+ if (line.startsWith("#")) {
+ // Get the current type definition
+ Matcher typeMatcher = typePattern.matcher(line);
+ checkArgument(typeMatcher.matches());
+ String metricName = typeMatcher.group(1);
+ currentMetric.set(metricName);
+ } else {
+ Matcher metricMatcher = metricNamePattern.matcher(line);
+ checkArgument(metricMatcher.matches());
+ String metricName = metricMatcher.group(1);
+
+ if (metricName.endsWith("_bucket")) {
+ metricName = metricName.substring(0,
metricName.indexOf("_bucket"));
+ } else if (metricName.endsWith("_count") &&
!currentMetric.get().endsWith("_count")) {
+ metricName = metricName.substring(0,
metricName.indexOf("_count"));
+ } else if (metricName.endsWith("_sum") &&
!currentMetric.get().endsWith("_sum")) {
+ metricName = metricName.substring(0,
metricName.indexOf("_sum"));
+ }
+
+ if (!metricName.equals(currentMetric.get())) {
+ System.out.println(metricsStr);
+ fail("Metric not grouped under it's type definition: " +
line);
Review Comment:
```suggestion
fail("Metric not grouped under its type definition: " +
line);
```
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