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SpectatorTimer.java
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SpectatorTimer.java
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/*
* Copyright 2017 VMware, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.micrometer.atlas;
import com.netflix.spectator.api.Measurement;
import com.netflix.spectator.api.Statistic;
import com.netflix.spectator.api.Timer;
import io.micrometer.core.instrument.AbstractTimer;
import io.micrometer.core.instrument.Clock;
import io.micrometer.core.instrument.distribution.DistributionStatisticConfig;
import io.micrometer.core.instrument.distribution.pause.PauseDetector;
import io.micrometer.core.instrument.util.TimeUtils;
import java.util.concurrent.TimeUnit;
import static java.util.stream.StreamSupport.stream;
public class SpectatorTimer extends AbstractTimer {
private final com.netflix.spectator.api.Timer timer;
public SpectatorTimer(Id id, Timer timer, Clock clock, DistributionStatisticConfig statsConf, PauseDetector pauseDetector, TimeUnit baseTimeUnit) {
super(id, clock, statsConf, pauseDetector, baseTimeUnit, false);
this.timer = timer;
}
@Override
protected void recordNonNegative(long amount, TimeUnit unit) {
timer.record(unit.toNanos(amount), TimeUnit.NANOSECONDS);
}
@Override
public long count() {
return timer.count();
}
@Override
public double totalTime(TimeUnit unit) {
// the Spectator Timer contract insists that nanos be returned from totalTime()
return TimeUtils.nanosToUnit(timer.totalTime(), unit);
}
@Override
public double max(TimeUnit unit) {
for (Measurement measurement : timer.measure()) {
if (stream(measurement.id().tags().spliterator(), false)
.anyMatch(tag -> tag.key().equals("statistic") && tag.value().equals(Statistic.max.toString()))) {
return TimeUtils.secondsToUnit(measurement.value(), unit);
}
}
return Double.NaN;
}
}