public static <T> QueryRunner<T> safeBuild(
QueryRunner<T> delegate,
Function<Query<T>, ServiceMetricEvent.Builder> builderFn,
ServiceEmitter emitter,
AtomicLong accumulator,
boolean report) {
if (!VMUtils.isThreadCpuTimeEnabled()) {
return delegate;
} else {
return new CPUTimeMetricQueryRunner<>(delegate, builderFn, emitter, accumulator, report);
}
}
private CPUTimeMetricQueryRunner(
QueryRunner<T> delegate,
Function<Query<T>, ServiceMetricEvent.Builder> builderFn,
ServiceEmitter emitter,
AtomicLong cpuTimeAccumulator,
boolean report) {
if (!VMUtils.isThreadCpuTimeEnabled()) {
throw new ISE("Cpu time must enabled");
}
this.delegate = delegate;
this.builderFn = builderFn;
this.emitter = emitter;
this.cpuTimeAccumulator = cpuTimeAccumulator == null ? new AtomicLong(0L) : cpuTimeAccumulator;
this.report = report;
}