Add actuator metrics support

Author: trask

opentelemetry-auto-instr-java

@@ -81,6 +81,7 @@ include ':test:smoke:testApps:JMS'
 include ':test:smoke:testApps:Kafka'
 include ':test:smoke:testApps:SpringCloudStream'
 include ':test:smoke:testApps:Micrometer'
+include ':test:smoke:testApps:ActuatorMetrics'
 include ':test:smoke:testApps:SystemExit'
 include ':test:smoke:testApps:VerifyShading'
 include ':test:smoke:testApps:VerifyJava7'

settings.gradle

@@ -0,0 +1,19 @@
+plugins {
+    id 'java'
+    id 'org.springframework.boot' version '2.1.7.RELEASE'
+}
+
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
+compileSmokeTestJava.sourceCompatibility = 1.8
+compileSmokeTestJava.targetCompatibility = 1.8
+
+ext.testAppArtifactDir = jar.destinationDirectory
+ext.testAppArtifactFilename = jar.archiveFileName.get()
+
+dependencies {
+    compileOnly aiAgentJar // this is just to force building the agent first
+
+    compile group: 'org.springframework.boot', name: 'spring-boot-starter-web', version: '2.1.7.RELEASE'
+    compile group: 'org.springframework.boot', name: 'spring-boot-starter-actuator', version: '2.1.7.RELEASE'
+}

test/smoke/testApps/ActuatorMetrics/build.gradle

@@ -0,0 +1,13 @@
+package com.microsoft.ajl.simple;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SpringBootApp {
+
+    public static void main(String[] args) {
+
+        SpringApplication.run(SpringBootApp.class, args);
+    }
+}

test/smoke/testApps/ActuatorMetrics/src/main/java/com/microsoft/ajl/simple/SpringBootApp.java

@@ -0,0 +1,18 @@
+package com.microsoft.ajl.simple;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class TestController {
+
+    @GetMapping("/")
+    public String root() {
+        return "OK";
+    }
+
+    @GetMapping("/test")
+    public String test() {
+        return "OK!";
+    }
+}

test/smoke/testApps/ActuatorMetrics/src/main/java/com/microsoft/ajl/simple/TestController.java

@@ -0,0 +1 @@
+management.metrics.export.azuremonitor.instrumentation-key=00000000-0000-0000-0000-000000000000

test/smoke/testApps/ActuatorMetrics/src/main/resources/application.properties

@@ -0,0 +1,40 @@
+package com.microsoft.applicationinsights.smoketest;
+
+import java.util.List;
+
+import com.microsoft.applicationinsights.internal.schemav2.DataPoint;
+import com.microsoft.applicationinsights.internal.schemav2.DataPointType;
+import com.microsoft.applicationinsights.internal.schemav2.MetricData;
+import org.junit.*;
+
+import static org.junit.Assert.*;
+
+@UseAgent("Micrometer")
+public class MicrometerTest extends AiSmokeTest {
+
+    @Test
+    @TargetUri("/test")
+    public void doMostBasicTest() throws Exception {
+        mockedIngestion.waitForItems("RequestData", 1);
+
+        mockedIngestion.waitForItems("MetricData", 1);
+
+        List<MetricData> metrics = mockedIngestion.getTelemetryDataByType("MetricData");
+
+        assertEquals(1, metrics.size());
+
+        List<DataPoint> points = metrics.get(0).getMetrics();
+
+        assertEquals(1, points.size());
+
+        DataPoint point = points.get(0);
+
+        assertEquals(DataPointType.Measurement, point.getKind());
+        assertEquals(1, point.getValue(), 0);
+        assertEquals("test_counter", point.getName());
+        assertNull("getCount was non-null", point.getCount());
+        assertNull("getMin was non-null", point.getMin());
+        assertNull("getMax was non-null", point.getMax());
+        assertNull("getStdDev was non-null", point.getStdDev());
+    }
+}

test/smoke/testApps/ActuatorMetrics/src/smokeTest/java/com/microsoft/applicationinsights/smoketest/MicrometerTest.java

@@ -0,0 +1 @@
+`jre.excludes.txt` is needed because Spring Boot 2 and Micrometer do not support Java 7

test/smoke/testApps/ActuatorMetrics/src/smokeTest/resources/README.md

@@ -0,0 +1 @@
+javase

test/smoke/testApps/ActuatorMetrics/src/smokeTest/resources/appServers.txt

@@ -0,0 +1 @@
+azul/zulu-openjdk:7