Example of Cinnamon + DataDog OT integration

DataDogTracerFactory.scala

/**
* Add the following setting to the application.conf to wire things up.
* 
* cinnamon.opentracing {
*   tracers = [datadog]
* 
*   datadog {
*     factory-class = "sample.DataDogTracerFactory"
*   }
* }
*/

package sample

import com.lightbend.cinnamon.opentracing.TracerFactory
import com.typesafe.config.Config
import datadog.opentracing.DDTracer
import datadog.trace.common.DDTraceConfig
import io.opentracing.Tracer

class DatadogTracerFactory extends TracerFactory {
    def create(config: Config): Tracer = {
    val serviceName = config.getString("cinnamon.application")
    val host = config.getString("cinnamon.opentracing.datadog.host") 
    val port = config.getInt("cinnamon.opentracing.datadog.port")
    val traceConfig = new DDTraceConfig(serviceName)
    traceConfig.setProperty(DDTraceConfig.AGENT_HOST, host)
    traceConfig.setProperty(DDTraceConfig.AGENT_PORT, port.toString)
    new DDTracer(traceConfig)
  }
}