server: Add ExternalServiceExecutionContext

server/app/com/xsn/explorer/executors/ExternalServiceExecutionContext.scala

@@ -0,0 +1,15 @@
+package com.xsn.explorer.executors
+
+import javax.inject.{Inject, Singleton}
+
+import akka.actor.ActorSystem
+import play.api.libs.concurrent.CustomExecutionContext
+
+import scala.concurrent.ExecutionContext
+
+trait ExternalServiceExecutionContext extends ExecutionContext
+
+@Singleton
+class ExternalServiceAkkaExecutionContext @Inject()(system: ActorSystem)
+    extends CustomExecutionContext(system, "externalService.dispatcher")
+    with ExternalServiceExecutionContext

server/conf/application.conf

@@ -24,3 +24,11 @@ rpc {
 }
 
 play.modules.enabled += "com.xsn.explorer.modules.ConfigModule"
+
+externalService.dispatcher {
+  executor = "thread-pool-executor"
+  throughput = 1
+  thread-pool-executor {
+    fixed-pool-size = 50
+  }
+}

server/test/com/xsn/explorer/helpers/Executors.scala

@@ -0,0 +1,16 @@
+package com.xsn.explorer.helpers
+
+import com.xsn.explorer.executors.ExternalServiceExecutionContext
+
+import scala.concurrent.ExecutionContext
+
+object Executors {
+
+  implicit val globalEC: ExecutionContext = scala.concurrent.ExecutionContext.global
+
+  implicit val externalServiceEC: ExternalServiceExecutionContext = new ExternalServiceExecutionContext {
+    override def execute(runnable: Runnable): Unit = globalEC.execute(runnable)
+
+    override def reportFailure(cause: Throwable): Unit = globalEC.reportFailure(cause)
+  }
+}