8000 Add JVM and OS version info to export (#196) · prometheus/client_java@bdc6f25 · GitHub
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Add JVM and OS version info to export (#196)
Add JVM version to exports
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‎simpleclient_hotspot/src/main/java/io/prometheus/client/hotspot/DefaultExports.java

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@@ -25,6 +25,7 @@ public static synchronized void initialize() {
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new GarbageCollectorExports().register();
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new ThreadExports().register();
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new ClassLoadingExports().register();
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new VersionInfoExports().register();
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initialized = true;
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}
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}

‎simpleclient_hotspot/src/main/java/io/prometheus/client/hotspot/VersionInfoExports.java

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package io.prometheus.client.hotspot;
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import io.prometheus.client.Collector;
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import io.prometheus.client.GaugeMetricFamily;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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/**
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* Exports JVM version info.
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* <p>
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* Example usage:
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* <pre>
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* {@code
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* new VersionInfoExports().register();
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* }
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* </pre>
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* Metrics being exported:
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* <pre>
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* jvm_info{version="1.8.0_45-b14",vendor="Oracle Corporation"} 1.0
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* </pre>
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*/
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public class VersionInfoExports extends Collector {
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public List<MetricFamilySamples> collect() {
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List<MetricFamilySamples> mfs = new ArrayList<MetricFamilySamples>();
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GaugeMetricFamily jvmInfo = new GaugeMetricFamily(
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"jvm_info",
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"JVM version info",
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Arrays.asList("version", "vendor"));
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jvmInfo.addMetric(Arrays.asList(System.getProperty("java.runtime.version", "unknown"), System.getProperty("java.vm.vendor", "unknown")), 1L);
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mfs.add(jvmInfo);
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return mfs;
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}
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}

‎simpleclient_hotspot/src/test/java/io/prometheus/client/hotspot/VersionInfoExportsTest.java

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package io.prometheus.client.hotspot;
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import io.prometheus.client.CollectorRegistry;
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import org.junit.Before;
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import org.junit.Test;
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import static org.junit.Assert.assertEquals;
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public class VersionInfoExportsTest {
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private CollectorRegistry registry = new CollectorRegistry();
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@Before
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public void setUp() {
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new VersionInfoExports().register(registry);
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}
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@Test
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public void testVersionInfo() {
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assertEquals(
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1L,
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registry.getSampleValue(
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"jvm_info", new String[]{"version", "vendor"}, new String[]{System.getProperty("java.runtime.version", "unknown"), System.getProperty("java.vm.vendor", "unknown")}),
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.0000001);
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}
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}

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