afedulov commented on a change in pull request #11195: [FLINK-16222][runtime]
Use plugins mechanism for initializing MetricReporters
URL: https://github.com/apache/flink/pull/11195#discussion_r397030268
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/metrics/ReporterSetup.java
##########
@@ -179,28 +164,82 @@ private static ReporterSetup createReporterSetup(String
reporterName, MetricConf
metricReporterOptional.ifPresent(reporter -> {
MetricConfig metricConfig = new
MetricConfig();
reporterConfig.addAllToProperties(metricConfig);
-
-
reporterArguments.add(createReporterSetup(reporterName, metricConfig,
reporter));
+
reporterSetups.add(createReporterSetup(reporterName, metricConfig, reporter));
});
- }
- catch (Throwable t) {
+ } catch (Throwable t) {
LOG.error("Could not instantiate metrics
reporter {}. Metrics might not be exposed/reported.", reporterName, t);
}
}
- return reporterArguments;
+ return reporterSetups;
}
- private static Map<String, MetricReporterFactory>
loadReporterFactories() {
- final ServiceLoader<MetricReporterFactory> serviceLoader =
ServiceLoader.load(MetricReporterFactory.class);
+ private static List<Tuple2<String, Configuration>>
loadReporterConfigurations(Configuration configuration, Set<String>
namedReporters) {
+ final List<Tuple2<String, Configuration>>
reporterConfigurations = new ArrayList<>(namedReporters.size());
+ for (String namedReporter: namedReporters) {
+ DelegatingConfiguration delegatingConfiguration = new
DelegatingConfiguration(
+ configuration,
+ ConfigConstants.METRICS_REPORTER_PREFIX +
namedReporter + '.');
+
+ reporterConfigurations.add(Tuple2.of(namedReporter,
delegatingConfiguration));
+ }
+ return reporterConfigurations;
+ }
+
+ private static Set<String>
findEnabledReportersInConfiguration(Configuration configuration, String
includedReportersString) {
+ Set<String> includedReporters =
reporterListPattern.splitAsStream(includedReportersString)
+ .filter(r -> !r.isEmpty()) // splitting an empty string
results in an empty string on jdk9+
+ .collect(Collectors.toSet());
Review comment:
You've mentioned "to get rid of the next few lines", but this Tree data
structure is further used as a container that is filled with some conditional
logic and returned, it is not just about having the input entries sorted. Do
you propose to rewrite it?
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