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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;
import java.util.concurrent.TimeUnit;
class PrometheusMetricsTracker implements IMetricsTracker
{
private static final Counter CONNECTION_TIMEOUT_COUNTER = Counter.build()
.name("hikaricp_connection_timeout_total")
.labelNames("pool")
.help("Connection timeout total count")
.register();
private static final Summary ELAPSED_ACQUIRED_SUMMARY = Summary.build()
.name("hikaricp_connection_acquired_nanos")
.labelNames("pool")
.help("Connection acquired time (ns)")
.register();
private static final Summary ELAPSED_BORROWED_SUMMARY = Summary.build()
.name("hikaricp_connection_usage_millis")
.labelNames("pool")
.help("Connection usage (ms)")
.register();
private static final Summary ELAPSED_CREATION_SUMMARY = Summary.build()
.name("hikaricp_connection_creation_millis")
.labelNames("pool")
.help("Connection creation (ms)")
.register();
private final Counter.Child connectionTimeoutCounterChild;
private final Summary.Child elapsedAcquiredSummaryChild;
private final Summary.Child elapsedBorrowedSummaryChild;
private final Summary.Child elapsedCreationSummaryChild;
PrometheusMetricsTracker(String poolName) {
this.connectionTimeoutCounterChild = CONNECTION_TIMEOUT_COUNTER.labels(poolName);
this.elapsedAcquiredSummaryChild = ELAPSED_ACQUIRED_SUMMARY.labels(poolName);
this.elapsedBorrowedSummaryChild = ELAPSED_BORROWED_SUMMARY.labels(poolName);
this.elapsedCreationSummaryChild = ELAPSED_CREATION_SUMMARY.labels(poolName);
}
@Override
public void recordConnectionAcquiredNanos(long elapsedAcquiredNanos)
{
elapsedAcquiredSummaryChild.observe(elapsedAcquiredNanos);
}
@Override
public void recordConnectionUsageMillis(long elapsedBorrowedMillis)
{
elapsedBorrowedSummaryChild.observe(elapsedBorrowedMillis);
}
@Override
public void recordConnectionCreatedMillis(long connectionCreatedMillis)
{
elapsedCreationSummaryChild.observe(connectionCreatedMillis);
}
@Override
public void recordConnectionTimeout()
{
connectionTimeoutCounterChild.inc();
}
}
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