Unifying towards using events

main-command/src/main/scala/sbt/BasicCommands.scala

@@ -6,7 +6,7 @@ import sbt.internal.util.complete.{ Completion, Completions, DefaultParsers, His
 import sbt.internal.util.Types.{ const, idFun }
 import sbt.internal.inc.classpath.ClasspathUtilities.toLoader
 import sbt.internal.inc.ModuleUtilities
-import sbt.internal.{ Exec, CommandSource, CommandStatus }
+import sbt.internal.{ Exec, ConsolePromptEvent, ConsoleUnpromptEvent }
 import sbt.internal.client.NetworkClient
 import DefaultParsers._
 import Function.tupled
@@ -196,10 +196,11 @@ object BasicCommands {
   def server = Command.command(Server, Help.more(Server, ServerDetailed)) { s0 =>
     val exchange = State.exchange
     val s1 = exchange.run(s0)
-    exchange.publishStatus(CommandStatus(s0, true), None)
+    exchange.publishEvent(ConsolePromptEvent(s0))
-    val Exec(source, line) = exchange.blockUntilNextExec
+    val Exec(line, source) = exchange.blockUntilNextExec
+    println(s"server (line, source): ($line, $source)")
     val newState = s1.copy(onFailure = Some(Server), remainingCommands = line +: Server +: s1.remainingCommands).setInteractive(true)
-    exchange.publishStatus(CommandStatus(newState, false), Some(source))
+    exchange.publishEvent(ConsoleUnpromptEvent(source))
     if (line.trim.isEmpty) newState
     else newState.clearGlobalLog
   }

main-command/src/main/scala/sbt/Command.scala

@@ -7,6 +7,7 @@ import sbt.internal.inc.ReflectUtilities
 import sbt.internal.util.complete.{ DefaultParsers, EditDistance, Parser }
 import sbt.internal.util.Types.const
 import sbt.internal.util.{ AttributeKey, AttributeMap, Util }
+import sbt.protocol.ExecStatusEvent
 
 sealed trait Command {
   def help: State => Help
@@ -87,15 +88,18 @@ object Command {
       }
     }
 
+  /** This is the main function State transfer function of the sbt command processing, called by MainLoop.next, */
   def process(command: String, state: State): State =
     {
       val parser = combine(state.definedCommands)
-      parse(command, parser(state)) match {
+      val newState = parse(command, parser(state)) match {
         case Right(s) => s() // apply command.  command side effects happen here
         case Left(errMsg) =>
           state.log.error(errMsg)
           state.fail
       }
+      State.exchange.publishEvent(ExecStatusEvent("Ready", newState.remainingCommands.toVector))
+      newState
     }
   def invalidValue(label: String, allowed: Iterable[String])(value: String): String =
     "Not a valid " + label + ": " + value + similar(value, allowed)

main-command/src/main/scala/sbt/internal/CommandChannel.scala

@@ -2,6 +2,7 @@ package sbt
 package internal
 
 import java.util.concurrent.ConcurrentLinkedQueue
+import sbt.protocol.EventMessage
 
 /**
  * A command channel represents an IO device such as network socket or human
@@ -14,22 +15,21 @@ abstract class CommandChannel {
     commandQueue.add(exec)
   def poll: Option[Exec] = Option(commandQueue.poll)
 
-  def publishStatus(status: CommandStatus, lastSource: Option[CommandSource]): Unit
+  def publishEvent(event: EventMessage): Unit
   def publishBytes(bytes: Array[Byte]): Unit
   def shutdown(): Unit
 }
 
-case class Exec(source: CommandSource, commandLine: String)
+case class Exec(commandLine: String, source: Option[CommandSource])
 
-sealed trait CommandSource
+case class CommandSource(channelName: String)
-object CommandSource {
-  case object Human extends CommandSource
-  case object Network extends CommandSource
-}
 
-/**
+/*
- * This is a data that is passed on to the channels.
+ * This is a data passed specifically for local prompting console.
- * The canEnter paramter indicates that the console devise or UI
- * should stop listening.
  */
-case class CommandStatus(state: State, canEnter: Boolean)
+case class ConsolePromptEvent(state: State) extends EventMessage
+
+/*
+ * This is a data passed specifically for unprompting local console.
+ */
+case class ConsoleUnpromptEvent(lastSource: Option[CommandSource]) extends EventMessage

main-command/src/main/scala/sbt/internal/CommandExchange.scala

@@ -5,11 +5,10 @@ import java.net.SocketException
 import java.util.concurrent.ConcurrentLinkedQueue
 import java.util.concurrent.atomic.AtomicInteger
 import sbt.internal.server._
-import sbt.protocol.Serialization
+import sbt.protocol.{ EventMessage, Serialization }
 import scala.collection.mutable.ListBuffer
 import scala.annotation.tailrec
 import BasicKeys.serverPort
-import sbt.protocol.StatusEvent
 import java.net.Socket
 
 /**
@@ -21,6 +20,7 @@ import java.net.Socket
 private[sbt] final class CommandExchange {
   private val lock = new AnyRef {}
   private var server: Option[ServerInstance] = None
+  private var consoleChannel: Option[ConsoleChannel] = None
   private val commandQueue: ConcurrentLinkedQueue[Exec] = new ConcurrentLinkedQueue()
   private val channelBuffer: ListBuffer[CommandChannel] = new ListBuffer()
   private val nextChannelId: AtomicInteger = new AtomicInteger(0)
@@ -30,8 +30,6 @@ private[sbt] final class CommandExchange {
       channelBuffer.append(c)
     }
 
-  subscribe(new ConsoleChannel())
-
   // periodically move all messages from all the channels
   @tailrec def blockUntilNextExec: Exec =
     {
@@ -51,7 +49,17 @@ private[sbt] final class CommandExchange {
       }
     }
 
-  def run(s: State): State = runServer(s)
+  def run(s: State): State =
+    {
+      consoleChannel match {
+        case Some(x) => // do nothing
+        case _ =>
+          val x = new ConsoleChannel("console0")
+          consoleChannel = Some(x)
+          subscribe(x)
+      }
+      runServer(s)
+    }
 
   private def newChannelName: String = s"channel-${nextChannelId.incrementAndGet()}"
 
@@ -85,27 +93,33 @@ private[sbt] final class CommandExchange {
       server = None
     }
 
-  // fanout publishStatus to all channels
+  // fanout publisEvent
-  def publishStatus(status: CommandStatus, lastSource: Option[CommandSource]): Unit =
+  def publishEvent(event: EventMessage): Unit =
     {
       val toDel: ListBuffer[CommandChannel] = ListBuffer.empty
-
+      event match {
-      val event =
+        // Special treatment for ConsolePromptEvent since it's hand coded without codec.
-        if (status.canEnter) StatusEvent("Ready", Vector())
+        case e: ConsolePromptEvent =>
-        else StatusEvent("Processing", status.state.remainingCommands.toVector)
+          channels collect {
-
+            case c: ConsoleChannel => c.publishEvent(e)
-      // TODO do not do this on the calling thread
+          }
-      val bytes = Serialization.serializeEvent(event)
+        case e: ConsoleUnpromptEvent =>
-      channels.foreach {
+          channels collect {
-        case c: ConsoleChannel =>
+            case c: ConsoleChannel => c.publishEvent(e)
-          c.publishStatus(status, lastSource)
+          }
-        case c: NetworkChannel =>
+        case _ =>
-          try {
+          // TODO do not do this on the calling thread
-            c.publishBytes(bytes)
+          val bytes = Serialization.serializeEvent(event)
-          } catch {
+          channels.foreach {
-            case e: SocketException =>
+            case c: ConsoleChannel =>
-              // log.debug(e.getMessage)
+              c.publishEvent(event)
-              toDel += c
+            case c: NetworkChannel =>
+              try {
+                c.publishBytes(bytes)
+              } catch {
+                case e: SocketException =>
+                  toDel += c
+              }
           }
       }
       toDel.toList match {

main-command/src/main/scala/sbt/internal/ConsoleChannel.scala

@@ -4,11 +4,11 @@ package internal
 import sbt.internal.util._
 import BasicKeys._
 import java.io.File
+import sbt.protocol.EventMessage
 
-private[sbt] final class ConsoleChannel extends CommandChannel {
+private[sbt] final class ConsoleChannel(name: String) extends CommandChannel {
   private var askUserThread: Option[Thread] = None
-  def makeAskUserThread(status: CommandStatus): Thread = new Thread("ask-user-thread") {
+  def makeAskUserThread(s: State): Thread = new Thread("ask-user-thread") {
-    val s = status.state
     val history = (s get historyPath) getOrElse Some(new File(s.baseDir, ".history"))
     val prompt = (s get shellPrompt) match {
       case Some(pf) => pf(s)
@@ -19,8 +19,8 @@ private[sbt] final class ConsoleChannel extends CommandChannel {
       // This internally handles thread interruption and returns Some("")
       val line = reader.readLine(prompt)
       line match {
-        case Some(cmd) => append(Exec(CommandSource.Human, cmd))
+        case Some(cmd) => append(Exec(cmd, Some(CommandSource(name))))
-        case None      => append(Exec(CommandSource.Human, "exit"))
+        case None      => append(Exec("exit", Some(CommandSource(name))))
       }
       askUserThread = None
     }
@@ -30,25 +30,27 @@ private[sbt] final class ConsoleChannel extends CommandChannel {
 
   def publishBytes(bytes: Array[Byte]): Unit = ()
 
-  def publishStatus(status: CommandStatus, lastSource: Option[CommandSource]): Unit =
+  def publishEvent(event: EventMessage): Unit =
-    if (status.canEnter) {
+    event match {
-      askUserThread match {
+      case e: ConsolePromptEvent =>
-        case Some(x) => //
+        askUserThread match {
-        case _ =>
+          case Some(x) => //
-          val x = makeAskUserThread(status)
+          case _ =>
-          askUserThread = Some(x)
+            val x = makeAskUserThread(e.state)
-          x.start
+            askUserThread = Some(x)
-      }
+            x.start
-    } else {
+        }
-      lastSource match {
+      case e: ConsoleUnpromptEvent =>
-        case Some(src) if src != CommandSource.Human =>
+        e.lastSource match {
-          askUserThread match {
+          case Some(src) if src.channelName != name =>
-            case Some(x) =>
+            askUserThread match {
-              shutdown()
+              case Some(x) =>
-            case _ =>
+                shutdown()
-          }
+              case _ =>
-        case _ =>
+            }
-      }
+          case _ =>
+        }
+      case _ => //
     }
 
   def shutdown(): Unit =

main-command/src/main/scala/sbt/internal/client/NetworkClient.scala

@@ -6,6 +6,7 @@ package internal
 package client
 
 import java.net.{ URI, Socket, InetAddress, SocketException }
+import java.util.UUID
 import sbt.protocol._
 import sbt.internal.util.JLine
 import java.util.concurrent.atomic.{ AtomicBoolean, AtomicReference }
@@ -39,7 +40,7 @@ class NetworkClient(arguments: List[String]) {
     new ServerConnection(socket) {
       override def onEvent(event: EventMessage): Unit =
         event match {
-          case e: StatusEvent =>
+          case e: ExecStatusEvent =>
             lock.synchronized {
               status.set(e.status)
             }
@@ -61,12 +62,13 @@ class NetworkClient(arguments: List[String]) {
           case Some("exit") =>
             running.set(false)
           case Some(s) =>
-            publishCommand(ExecCommand(s))
+            val execId = UUID.randomUUID.toString
+            publishCommand(ExecCommand(s, execId))
+            while (status.get != "Ready") {
+              Thread.sleep(100)
+            }
           case _ => //
         }
-        while (status.get != "Ready") {
-          Thread.sleep(100)
-        }
       }
     }
 

main-command/src/main/scala/sbt/internal/server/NetworkChannel.scala

@@ -7,7 +7,7 @@ package server
 
 import java.net.{ Socket, SocketTimeoutException }
 import java.util.concurrent.atomic.AtomicBoolean
-import sbt.protocol.{ Serialization, CommandMessage, ExecCommand }
+import sbt.protocol.{ Serialization, CommandMessage, ExecCommand, EventMessage }
 
 final class NetworkChannel(name: String, connection: Socket) extends CommandChannel {
   private val running = new AtomicBoolean(true)
@@ -50,10 +50,8 @@ final class NetworkChannel(name: String, connection: Socket) extends CommandChan
   }
   thread.start()
 
-  def publishStatus(status: CommandStatus, lastSource: Option[CommandSource]): Unit =
+  def publishEvent(event: EventMessage): Unit = ()
-    {
+
-      ()
-    }
   def publishBytes(event: Array[Byte]): Unit =
     {
       out.write(event)
@@ -63,7 +61,7 @@ final class NetworkChannel(name: String, connection: Socket) extends CommandChan
 
   def onCommand(command: CommandMessage): Unit =
     command match {
-      case x: ExecCommand => append(Exec(CommandSource.Network, x.commandLine))
+      case x: ExecCommand => append(Exec(x.commandLine, Some(CommandSource(name))))
     }
 
   def shutdown(): Unit = {

main/src/main/scala/sbt/internal/Aggregation.scala

@@ -35,21 +35,15 @@ object Aggregation {
       runTasks(s, structure, ts, DummyTaskMap(Nil), show)
     }
 
-  @deprecated("Use `timedRun` and `showRun` directly or use `runTasks`.", "0.13.0")
+  private def showRun[T](complete: Complete[T], show: ShowConfig)(implicit display: Show[ScopedKey[_]]): Unit =
-  def runTasksWithResult[T](s: State, structure: BuildStructure, ts: Values[Task[T]], extra: DummyTaskMap, show: ShowConfig)(implicit display: Show[ScopedKey[_]]): (State, Result[Seq[KeyValue[T]]]) =
     {
-      val complete = timedRun[T](s, ts, extra)
+      import complete._
-      showRun(complete, show)
+      val log = state.log
-      (complete.state, complete.results)
+      val extracted = Project.extract(state)
+      val success = results match { case Value(_) => true; case Inc(_) => false }
+      results.toEither.right.foreach { r => if (show.taskValues) printSettings(r, show.print) }
+      if (show.success) printSuccess(start, stop, extracted, success, log)
     }
-  def showRun[T](complete: Complete[T], show: ShowConfig)(implicit display: Show[ScopedKey[_]]): Unit = {
-    import complete._
-    val log = state.log
-    val extracted = Project.extract(state)
-    val success = results match { case Value(_) => true; case Inc(_) => false }
-    results.toEither.right.foreach { r => if (show.taskValues) printSettings(r, show.print) }
-    if (show.success) printSuccess(start, stop, extracted, success, log)
-  }
   def timedRun[T](s: State, ts: Values[Task[T]], extra: DummyTaskMap): Complete[T] =
     {
       import EvaluateTask._

protocol/src/main/contraband-scala/sbt/protocol/ExecCommand.scala

@@ -6,28 +6,37 @@
 package sbt.protocol
 /** Command to execute sbt command. */
 final class ExecCommand private (
-  val commandLine: String) extends sbt.protocol.CommandMessage() with Serializable {
+  val commandLine: String,
-  
+  val execId: Option[String]) extends sbt.protocol.CommandMessage() with Serializable {
   
+  private def this(commandLine: String) = this(commandLine, None)
   
   override def equals(o: Any): Boolean = o match {
-    case x: ExecCommand => (this.commandLine == x.commandLine)
+    case x: ExecCommand => (this.commandLine == x.commandLine) && (this.execId == x.execId)
     case _ => false
   }
   override def hashCode: Int = {
-    37 * (17 + commandLine.##)
+    37 * (37 * (17 + commandLine.##) + execId.##)
   }
   override def toString: String = {
-    "ExecCommand(" + commandLine + ")"
+    "ExecCommand(" + commandLine + ", " + execId + ")"
   }
-  protected[this] def copy(commandLine: String = commandLine): ExecCommand = {
+  protected[this] def copy(commandLine: String = commandLine, execId: Option[String] = execId): ExecCommand = {
-    new ExecCommand(commandLine)
+    new ExecCommand(commandLine, execId)
   }
   def withCommandLine(commandLine: String): ExecCommand = {
     copy(commandLine = commandLine)
   }
+  def withExecId(execId: Option[String]): ExecCommand = {
+    copy(execId = execId)
+  }
+  def withExecId(execId: String): ExecCommand = {
+    copy(execId = Option(execId))
+  }
 }
 object ExecCommand {
   
-  def apply(commandLine: String): ExecCommand = new ExecCommand(commandLine)
+  def apply(commandLine: String): ExecCommand = new ExecCommand(commandLine, None)
+  def apply(commandLine: String, execId: Option[String]): ExecCommand = new ExecCommand(commandLine, execId)
+  def apply(commandLine: String, execId: String): ExecCommand = new ExecCommand(commandLine, Option(execId))
 }

protocol/src/main/contraband-scala/sbt/protocol/ExecStatusEvent.scala

@@ -5,33 +5,33 @@
 // DO NOT EDIT MANUALLY
 package sbt.protocol
 /** Status event. */
-final class StatusEvent private (
+final class ExecStatusEvent private (
   val status: String,
   val commandQueue: Vector[String]) extends sbt.protocol.EventMessage() with Serializable {
   
   
   
   override def equals(o: Any): Boolean = o match {
-    case x: StatusEvent => (this.status == x.status) && (this.commandQueue == x.commandQueue)
+    case x: ExecStatusEvent => (this.status == x.status) && (this.commandQueue == x.commandQueue)
     case _ => false
   }
   override def hashCode: Int = {
     37 * (37 * (17 + status.##) + commandQueue.##)
   }
   override def toString: String = {
-    "StatusEvent(" + status + ", " + commandQueue + ")"
+    "ExecStatusEvent(" + status + ", " + commandQueue + ")"
   }
-  protected[this] def copy(status: String = status, commandQueue: Vector[String] = commandQueue): StatusEvent = {
+  protected[this] def copy(status: String = status, commandQueue: Vector[String] = commandQueue): ExecStatusEvent = {
-    new StatusEvent(status, commandQueue)
+    new ExecStatusEvent(status, commandQueue)
   }
-  def withStatus(status: String): StatusEvent = {
+  def withStatus(status: String): ExecStatusEvent = {
     copy(status = status)
   }
-  def withCommandQueue(commandQueue: Vector[String]): StatusEvent = {
+  def withCommandQueue(commandQueue: Vector[String]): ExecStatusEvent = {
     copy(commandQueue = commandQueue)
   }
 }
-object StatusEvent {
+object ExecStatusEvent {
   
-  def apply(status: String, commandQueue: Vector[String]): StatusEvent = new StatusEvent(status, commandQueue)
+  def apply(status: String, commandQueue: Vector[String]): ExecStatusEvent = new ExecStatusEvent(status, commandQueue)
 }

protocol/src/main/contraband-scala/sbt/protocol/codec/ConsolePromptEventFormats.scala

@@ -0,0 +1,27 @@
+/**
+ * This code is generated using sbt-datatype.
+ */
+
+// DO NOT EDIT MANUALLY
+package sbt.protocol.codec
+import _root_.sjsonnew.{ deserializationError, serializationError, Builder, JsonFormat, Unbuilder }
+trait ConsolePromptEventFormats { self: sjsonnew.BasicJsonProtocol =>
+implicit lazy val ConsolePromptEventFormat: JsonFormat[sbt.protocol.ConsolePromptEvent] = new JsonFormat[sbt.protocol.ConsolePromptEvent] {
+  override def read[J](jsOpt: Option[J], unbuilder: Unbuilder[J]): sbt.protocol.ConsolePromptEvent = {
+    jsOpt match {
+      case Some(js) =>
+      unbuilder.beginObject(js)
+      
+      unbuilder.endObject()
+      sbt.protocol.ConsolePromptEvent()
+      case None =>
+      deserializationError("Expected JsObject but found None")
+    }
+  }
+  override def write[J](obj: sbt.protocol.ConsolePromptEvent, builder: Builder[J]): Unit = {
+    builder.beginObject()
+    
+    builder.endObject()
+  }
+}
+}

protocol/src/main/contraband-scala/sbt/protocol/codec/EventMessageFormats.scala

@@ -5,6 +5,6 @@
 // DO NOT EDIT MANUALLY
 package sbt.protocol.codec
 import _root_.sjsonnew.{ deserializationError, serializationError, Builder, JsonFormat, Unbuilder }
-trait EventMessageFormats { self: sjsonnew.BasicJsonProtocol with sbt.protocol.codec.LogEventFormats with sbt.protocol.codec.StatusEventFormats =>
+trait EventMessageFormats { self: sjsonnew.BasicJsonProtocol with sbt.protocol.codec.LogEventFormats with sbt.protocol.codec.ExecStatusEventFormats =>
-implicit lazy val EventMessageFormat: JsonFormat[sbt.protocol.EventMessage] = flatUnionFormat2[sbt.protocol.EventMessage, sbt.protocol.LogEvent, sbt.protocol.StatusEvent]("type")
+implicit lazy val EventMessageFormat: JsonFormat[sbt.protocol.EventMessage] = flatUnionFormat2[sbt.protocol.EventMessage, sbt.protocol.LogEvent, sbt.protocol.ExecStatusEvent]("type")
 }

protocol/src/main/contraband-scala/sbt/protocol/codec/ExecCommandFormats.scala

@@ -12,8 +12,9 @@ implicit lazy val ExecCommandFormat: JsonFormat[sbt.protocol.ExecCommand] = new
       case Some(js) =>
       unbuilder.beginObject(js)
       val commandLine = unbuilder.readField[String]("commandLine")
+      val execId = unbuilder.readField[Option[String]]("execId")
       unbuilder.endObject()
-      sbt.protocol.ExecCommand(commandLine)
+      sbt.protocol.ExecCommand(commandLine, execId)
       case None =>
       deserializationError("Expected JsObject but found None")
     }
@@ -21,6 +22,7 @@ implicit lazy val ExecCommandFormat: JsonFormat[sbt.protocol.ExecCommand] = new
   override def write[J](obj: sbt.protocol.ExecCommand, builder: Builder[J]): Unit = {
     builder.beginObject()
     builder.addField("commandLine", obj.commandLine)
+    builder.addField("execId", obj.execId)
     builder.endObject()
   }
 }

protocol/src/main/contraband-scala/sbt/protocol/codec/ExecStatusEventFormats.scala

@@ -0,0 +1,29 @@
+/**
+ * This code is generated using sbt-datatype.
+ */
+
+// DO NOT EDIT MANUALLY
+package sbt.protocol.codec
+import _root_.sjsonnew.{ deserializationError, serializationError, Builder, JsonFormat, Unbuilder }
+trait ExecStatusEventFormats { self: sjsonnew.BasicJsonProtocol =>
+implicit lazy val ExecStatusEventFormat: JsonFormat[sbt.protocol.ExecStatusEvent] = new JsonFormat[sbt.protocol.ExecStatusEvent] {
+  override def read[J](jsOpt: Option[J], unbuilder: Unbuilder[J]): sbt.protocol.ExecStatusEvent = {
+    jsOpt match {
+      case Some(js) =>
+      unbuilder.beginObject(js)
+      val status = unbuilder.readField[String]("status")
+      val commandQueue = unbuilder.readField[Vector[String]]("commandQueue")
+      unbuilder.endObject()
+      sbt.protocol.ExecStatusEvent(status, commandQueue)
+      case None =>
+      deserializationError("Expected JsObject but found None")
+    }
+  }
+  override def write[J](obj: sbt.protocol.ExecStatusEvent, builder: Builder[J]): Unit = {
+    builder.beginObject()
+    builder.addField("status", obj.status)
+    builder.addField("commandQueue", obj.commandQueue)
+    builder.endObject()
+  }
+}
+}

protocol/src/main/contraband-scala/sbt/protocol/codec/JsonProtocol.scala

@@ -4,5 +4,5 @@
 
 // DO NOT EDIT MANUALLY
 package sbt.protocol.codec
-trait JsonProtocol extends sjsonnew.BasicJsonProtocol with sbt.protocol.codec.ExecCommandFormats with sbt.protocol.codec.CommandMessageFormats with sbt.protocol.codec.LogEventFormats with sbt.protocol.codec.StatusEventFormats with sbt.protocol.codec.EventMessageFormats
+trait JsonProtocol extends sjsonnew.BasicJsonProtocol with sbt.protocol.codec.ExecCommandFormats with sbt.protocol.codec.CommandMessageFormats with sbt.protocol.codec.LogEventFormats with sbt.protocol.codec.ExecStatusEventFormats with sbt.protocol.codec.EventMessageFormats
 object JsonProtocol extends JsonProtocol

protocol/src/main/contraband/server.contra

@@ -10,6 +10,7 @@ interface CommandMessage {
 ## Command to execute sbt command.
 type ExecCommand implements CommandMessage {
   commandLine: String!
+  execId: String @since("0.0.1")
 }
 
 ## Message for events.
@@ -23,7 +24,7 @@ type LogEvent implements EventMessage {
 }
 
 ## Status event.
-type StatusEvent implements EventMessage {
+type ExecStatusEvent implements EventMessage {
   status: String!
   commandQueue: [String]
 }