Gradle Enterprise Export API

[bootstraponline]

Author the user story for this feature

As a Gradle user, I want to export build data from Gradle Enterprise so I can have metrics on build performance.

---

Let's add a working Kotlin sample in the Flank repo that demonstrates fetching data from the Gradle Enterprise Export API. We should also submit this example in the upstream repo

Here's a simple example:

import okhttp3.*
import okhttp3.sse.EventSource
import okhttp3.sse.EventSourceListener
import okhttp3.sse.EventSources.createFactory
import java.time.Duration

fun main() {
    val id = ""
    val password = ""
    val url = "https://enterprise-training.gradle.com/build-export/v1/builds/since/now?stream"

    val client = OkHttpClient.Builder()
        .connectTimeout(Duration.ZERO)
        .readTimeout(Duration.ZERO)
        .authenticator(
        object : Authenticator {
            override fun authenticate(route: Route?, response: Response): Request? {
                return response.request
                    .newBuilder()
                    .addHeader("Authorization", Credentials.basic(id, password))
                    .build()
            }
        }
    ).build()

    val factory = createFactory(client)

    val request = Request.Builder()
        .url(url).build()
    val listener = object : EventSourceListener() {
        override fun onClosed(eventSource: EventSource) {
            println("onClosed")
            super.onClosed(eventSource)
        }

        override fun onEvent(eventSource: EventSource, id: String?, type: String?, data: String) {
            println("onEvent $id $type $data")
            super.onEvent(eventSource, id, type, data)
        }

        override fun onFailure(eventSource: EventSource, t: Throwable?, response: Response?) {
            println("onFailure $t $response")
            super.onFailure(eventSource, t, response)
        }

        override fun onOpen(eventSource: EventSource, response: Response) {
            println("onOpen $response")
            super.onOpen(eventSource, response)
        }
    }
    factory.newEventSource(request, listener)
}

plugins {
    kotlin("jvm") version "1.3.72"
}

group = "org.example"
version = "1.0-SNAPSHOT"

repositories {
    mavenCentral()
}

dependencies {
    implementation(kotlin("stdlib-jdk8"))
    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.7")
    implementation("com.squareup.okhttp3:okhttp:4.8.0")
    implementation("com.squareup.okhttp3:okhttp-sse:4.8.0")

}

tasks {
    compileKotlin {
        kotlinOptions.jvmTarget = "1.8"
    }
    compileTestKotlin {
        kotlinOptions.jvmTarget = "1.8"
    }
}

Context

• https://docs.gradle.com/enterprise/export-api/
• https://github.com/gradle/gradle-enterprise-export-api-samples