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Merge pull request lsjostro#2 from markyjackson-taulia/documentation
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48 changes: 48 additions & 0 deletions
48
src/main/java/org/jenkinsci/plugins/prometheus/JenkinsStatusCollector.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,48 @@ | ||
| package org.jenkinsci.plugins.prometheus; | ||
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| import hudson.model.Computer; | ||
| import io.prometheus.client.Collector; | ||
| import io.prometheus.client.Gauge; | ||
| import jenkins.model.Jenkins; | ||
| import org.jenkinsci.plugins.prometheus.util.ConfigurationUtils; | ||
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| import java.util.ArrayList; | ||
| import java.util.List; | ||
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| public class JenkinsStatusCollector extends Collector { | ||
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| @Override | ||
| public List<MetricFamilySamples> collect() { | ||
| final String subsystem = "jenkins"; | ||
| final String namespace = ConfigurationUtils.getNamespace(); | ||
| final List<MetricFamilySamples> samples = new ArrayList<>(); | ||
| Gauge jenkinsUp = Gauge.build(). | ||
| name("up"). | ||
| labelNames(). | ||
| subsystem(subsystem). | ||
| namespace(namespace). | ||
| help("Is Jenkins ready to receive requests"). | ||
| create(); | ||
| Jenkins jenkins = Jenkins.getInstance(); | ||
| if (jenkins == null) { | ||
| return null; | ||
| } | ||
| jenkinsUp.set(jenkins.getInitLevel() == hudson.init.InitMilestone.COMPLETED ? | ||
| 1 : 0); | ||
| samples.addAll(jenkinsUp.collect()); | ||
| Gauge jenkinsUptime = Gauge.build(). | ||
| name("uptime"). | ||
| labelNames(). | ||
| subsystem(subsystem). | ||
| namespace(namespace). | ||
| help("Time since Jenkins machine was initialized"). | ||
| create(); | ||
| Computer computer = jenkins.toComputer(); | ||
| if (computer != null) { | ||
| long upTime = computer.getConnectTime(); | ||
| jenkinsUptime.set(System.currentTimeMillis() - upTime); | ||
| samples.addAll(jenkinsUptime.collect()); | ||
| } | ||
| return samples; | ||
| } | ||
| } |
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16 changes: 16 additions & 0 deletions
16
src/main/java/org/jenkinsci/plugins/prometheus/util/ConfigurationUtils.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,16 @@ | ||
| package org.jenkinsci.plugins.prometheus.util; | ||
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| import org.apache.commons.lang.StringUtils; | ||
| import org.jenkinsci.plugins.prometheus.config.PrometheusConfiguration; | ||
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| public class ConfigurationUtils { | ||
| public static String getNamespace() { | ||
| // get the namespace from the environment first | ||
| String namespace = System.getenv("PROMETHEUS_NAMESPACE"); | ||
| if (StringUtils.isEmpty(namespace)) { | ||
| // when the environment variable isn't set, try the system configuration | ||
| namespace = PrometheusConfiguration.get().getDefaultNamespace(); | ||
| } | ||
| return namespace; | ||
| } | ||
| } |