lukecwik commented on a change in pull request #17094:
URL: https://github.com/apache/beam/pull/17094#discussion_r829197254
##########
File path:
runners/core-java/src/main/java/org/apache/beam/runners/core/metrics/MonitoringInfoMetricName.java
##########
@@ -56,13 +58,13 @@ private MonitoringInfoMetricName(String urn, Map<String,
String> labels) {
public String getNamespace() {
if (labels.containsKey(MonitoringInfoConstants.Labels.NAMESPACE)) {
Review comment:
Don't pay the map lookup cost twice:
```
String rval = labels.get(KEY1);
if (rval != null) {
return rval;
}
rval = labels.get(KEY2);
if (rval != null) {
return rval;
}
...
```
##########
File path:
runners/core-java/src/main/java/org/apache/beam/runners/core/metrics/MonitoringInfoMetricName.java
##########
@@ -48,6 +45,11 @@ private MonitoringInfoMetricName(String urn, Map<String,
String> labels) {
// and ensure all necessary labels are set for the specific URN.
this.urn = urn;
for (Entry<String, String> entry : labels.entrySet()) {
Review comment:
this.labels = ImmutableMap.copyOf(labels);
##########
File path:
runners/core-java/src/main/java/org/apache/beam/runners/core/metrics/MonitoringInfoMetricName.java
##########
@@ -33,9 +33,6 @@
* key instead of only a name+namespace. This is useful when defining system
defined metrics with a
* specific urn via a {@code CounterContainer}.
*/
-@SuppressWarnings({
- "nullness" // TODO(https://issues.apache.org/jira/browse/BEAM-10402)
-})
public class MonitoringInfoMetricName extends MetricName {
private String urn;
Review comment:
mark these fields final
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