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The official Couchbase JVM Core IO Library
/*
* Copyright (c) 2020 Couchbase, 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
*
* http://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 com.couchbase.client.core.cnc.metrics;
import com.couchbase.client.core.annotation.Stability;
import com.couchbase.client.core.cnc.ValueRecorder;
import com.couchbase.client.core.deps.org.HdrHistogram.Histogram;
import com.couchbase.client.core.deps.org.LatencyUtils.LatencyStats;
import java.util.Map;
import java.util.Objects;
/**
* Aggregates value information in a histogram.
*/
@Stability.Volatile
public class AggregatingValueRecorder implements ValueRecorder {
private final String name;
private final Map tags;
private final LatencyStats recorderStats = new LatencyStats();
public AggregatingValueRecorder(final String name, final Map tags) {
this.name = name;
this.tags = tags;
}
@Override
public void recordValue(long value) {
recorderStats.recordLatency(value);
}
Histogram clearStats() {
return recorderStats.getIntervalHistogram();
}
Map tags() {
return tags;
}
@Override
public String toString() {
return "AggregatingValueRecorder{" +
"name='" + name + '\'' +
", tags=" + tags +
'}';
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
AggregatingValueRecorder that = (AggregatingValueRecorder) o;
return Objects.equals(name, that.name) && Objects.equals(tags, that.tags);
}
@Override
public int hashCode() {
return Objects.hash(name, tags);
}
}