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Return null immediately when sla is null in convertSla() #13991

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Return null immediately when sla is null in convertSla() #13991

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7 changes: 4 additions & 3 deletions ...in/java/org/springframework/boot/actuate/autoconfigure/metrics/PropertiesMeterFilter.java
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Original file line number Diff line number Diff line change
Expand Up @@ -43,8 +43,6 @@
*/
public class PropertiesMeterFilter implements MeterFilter {

private static final ServiceLevelAgreementBoundary[] EMPTY_SLA = {};

private final MetricsProperties properties;

private final MeterFilter mapFilter;
Expand Down Expand Up @@ -90,7 +88,10 @@ public DistributionStatisticConfig configure(Meter.Id id,
}

private long[] convertSla(Meter.Type meterType, ServiceLevelAgreementBoundary[] sla) {
long[] converted = Arrays.stream((sla != null) ? sla : EMPTY_SLA)
if (sla == null) {
return null;
}
long[] converted = Arrays.stream(sla)
.map((candidate) -> candidate.getValue(meterType))
.filter(Objects::nonNull).mapToLong(Long::longValue).toArray();
return (converted.length != 0) ? converted : null;
Expand Down