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/*
* Copyright (C) 2013 Brett Wooldridge
*
* 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.zaxxer.hikari.metrics.prometheus;
import com.zaxxer.hikari.metrics.IMetricsTracker;
import io.prometheus.client.Collector;
import io.prometheus.client.CollectorRegistry;
import io.prometheus.client.Counter;
import io.prometheus.client.Summary;
class PrometheusMetricsTracker implements IMetricsTracker
{
private final Counter.Child connectionTimeoutCounter;
private final Summary.Child elapsedAcquiredSummary;
private final Summary.Child elapsedBorrowedSummary;
private final Summary.Child elapsedCreationSummary;
private final Counter ctCounter;
private final Summary eaSummary;
private final Summary ebSummary;
private final Summary ecSummary;
private final Collector collector;
PrometheusMetricsTracker(String poolName, Collector collector)
{
this.collector = collector;
ctCounter = Counter.build()
.name("hikaricp_connection_timeout_count")
.labelNames("pool")
.help("Connection timeout count")
.register();
this.connectionTimeoutCounter = ctCounter.labels(poolName);
eaSummary = Summary.build()
.name("hikaricp_connection_acquired_nanos")
.labelNames("pool")
.help("Connection acquired time (ns)")
.register();
this.elapsedAcquiredSummary = eaSummary.labels(poolName);
ebSummary = Summary.build()
.name("hikaricp_connection_usage_millis")
.labelNames("pool")
.help("Connection usage (ms)")
.register();
this.elapsedBorrowedSummary = ebSummary.labels(poolName);
ecSummary = Summary.build()
.name("hikaricp_connection_creation_millis")
.labelNames("pool")
.help("Connection creation (ms)")
.register();
this.elapsedCreationSummary = ecSummary.labels(poolName);
}
@Override
public void close()
{
CollectorRegistry.defaultRegistry.unregister(ctCounter);
CollectorRegistry.defaultRegistry.unregister(eaSummary);
CollectorRegistry.defaultRegistry.unregister(ebSummary);
CollectorRegistry.defaultRegistry.unregister(ecSummary);
CollectorRegistry.defaultRegistry.unregister(collector);
}
@Override
public void recordConnectionAcquiredNanos(long elapsedAcquiredNanos)
{
elapsedAcquiredSummary.observe(elapsedAcquiredNanos);
}
@Override
public void recordConnectionUsageMillis(long elapsedBorrowedMillis)
{
elapsedBorrowedSummary.observe(elapsedBorrowedMillis);
}
@Override
public void recordConnectionCreatedMillis(long connectionCreatedMillis)
{
elapsedCreationSummary.observe(connectionCreatedMillis);
}
@Override
public void recordConnectionTimeout()
{
connectionTimeoutCounter.inc();
}
}
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