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/*
* Copyright (C) 2013, 2014 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 static com.zaxxer.hikari.pool.TestElf.newHikariConfig;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import java.sql.Connection;
import java.sql.SQLTransientConnectionException;
import org.junit.Test;
import com.zaxxer.hikari.HikariConfig;
import com.zaxxer.hikari.HikariDataSource;
import io.prometheus.client.CollectorRegistry;
public class PrometheusMetricsTrackerTest {
@Test
public void recordConnectionTimeout() throws Exception {
HikariConfig config = newHikariConfig();
config.setMetricsTrackerFactory(new PrometheusMetricsTrackerFactory());
config.setJdbcUrl("jdbc:h2:mem:");
config.setMaximumPoolSize(2);
config.setConnectionTimeout(250);
String[] labelNames = {"pool"};
String[] labelValues = {config.getPoolName()};
try (HikariDataSource hikariDataSource = new HikariDataSource(config)) {
try (Connection connection1 = hikariDataSource.getConnection();
Connection connection2 = hikariDataSource.getConnection()) {
try (Connection connection3 = hikariDataSource.getConnection()) {
}
catch (SQLTransientConnectionException ignored) {
}
}
assertThat(CollectorRegistry.defaultRegistry.getSampleValue(
"hikaricp_connection_timeout_total",
labelNames,
labelValues), is(1.0));
assertThat(CollectorRegistry.defaultRegistry.getSampleValue(
"hikaricp_connection_acquired_nanos_count",
labelNames,
labelValues), is(equalTo(3.0)));
assertTrue(CollectorRegistry.defaultRegistry.getSampleValue(
"hikaricp_connection_acquired_nanos_sum",
labelNames,
labelValues) > 0.0);
assertThat(CollectorRegistry.defaultRegistry.getSampleValue(
"hikaricp_connection_usage_millis_count",
labelNames,
labelValues), is(equalTo(2.0)));
assertTrue(CollectorRegistry.defaultRegistry.getSampleValue(
"hikaricp_connection_usage_millis_sum",
labelNames,
labelValues) > 0.0);
}
}
@Test
public void testMultiplePoolName() throws Exception {
String[] labelNames = {"pool"};
HikariConfig config = newHikariConfig();
config.setMetricsTrackerFactory(new PrometheusMetricsTrackerFactory());
config.setPoolName("first");
config.setJdbcUrl("jdbc:h2:mem:");
config.setMaximumPoolSize(2);
config.setConnectionTimeout(250);
String[] labelValues1 = {config.getPoolName()};
try (HikariDataSource ignored = new HikariDataSource(config)) {
assertThat(CollectorRegistry.defaultRegistry.getSampleValue(
"hikaricp_connection_timeout_total",
labelNames,
labelValues1), is(0.0));
HikariConfig config2 = newHikariConfig();
config2.setMetricsTrackerFactory(new PrometheusMetricsTrackerFactory());
config2.setPoolName("second");
config2.setJdbcUrl("jdbc:h2:mem:");
config2.setMaximumPoolSize(4);
config2.setConnectionTimeout(250);
String[] labelValues2 = {config2.getPoolName()};
try (HikariDataSource ignored2 = new HikariDataSource(config2)) {
assertThat(CollectorRegistry.defaultRegistry.getSampleValue(
"hikaricp_connection_timeout_total",
labelNames,
labelValues2), is(0.0));
}
}
}
}
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