tillrohrmann commented on a change in pull request #8002: [FLINK-11923][metrics] MetricRegistryConfiguration
provides MetricReporters Suppliers
URL: https://github.com/apache/flink/pull/8002#discussion_r273994424
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/metrics/MetricRegistryImpl.java
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@@ -113,19 +114,12 @@ public MetricRegistryImpl(MetricRegistryConfiguration config) {
// by default, don't report anything
LOG.info("No metrics reporter configured, no metrics will be exposed/reported.");
} else {
- // we have some reporters so
- for (Tuple2<String, Configuration> reporterConfiguration: reporterConfigurations)
{
- String namedReporter = reporterConfiguration.f0;
- Configuration reporterConfig = reporterConfiguration.f1;
-
- final String className = reporterConfig.getString(ConfigConstants.METRICS_REPORTER_CLASS_SUFFIX,
null);
- if (className == null) {
- LOG.error("No reporter class set for reporter " + namedReporter + ". Metrics might not
be exposed/reported.");
- continue;
- }
+ for (ReporterSetup reporterSetup : reporterConfigurations) {
+ final String namedReporter = reporterSetup.getName();
+ final MetricConfig metricConfig = reporterSetup.getConfiguration();
try {
- String configuredPeriod = reporterConfig.getString(ConfigConstants.METRICS_REPORTER_INTERVAL_SUFFIX,
null);
+ String configuredPeriod = metricConfig.getString(ConfigConstants.METRICS_REPORTER_INTERVAL_SUFFIX,
null);
Review comment:
The benefit would be that we hide the fact that we read the value from the underlying `Configuration`.
It would, thus, follow better the law of Demeter.
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