move AI process lifetime logging

app/ai/stockfish/PlayFSM.scala

@@ -13,13 +13,12 @@ final class PlayFSM(
     extends Actor with AkkaFSM[State, Data] {
 
   var process: Process = _
-  
-  override def preStart() { 
-    log.warning("PlayFSM initialize")
+
+  override def preStart() {
     process = processBuilder(
-    out ⇒ self ! Out(out),
-    err ⇒ self ! Err(err),
-    msg ⇒ !isNoise(msg))
+      out ⇒ self ! Out(out),
+      err ⇒ self ! Err(err),
+      msg ⇒ !isNoise(msg))
   }
 
   startWith(Starting, Todo())
@@ -73,7 +72,6 @@ final class PlayFSM(
     t.isEmpty || (t startsWith "id ") || (t startsWith "info ") || (t startsWith "option name ")
 
   override def postStop() {
-    log.warning("PlayFSM terminate")
     process.destroy()
     process = null
   }

app/ai/stockfish/Process.scala

@@ -12,6 +12,8 @@ final class Process(
     err: String ⇒ Unit,
     debug: Process.Debug) {
 
+  doLog("Start process")
+
   def write(msg: String) {
     log(msg)
     in write (msg + "\n").getBytes("UTF-8")
@@ -19,6 +21,7 @@ final class Process(
   }
 
   def destroy() {
+    doLog("Destroy process")
     try {
       write("stop")
       write("quit")
@@ -46,7 +49,11 @@ final class Process(
   private val process = builder run processIO
 
   private def log(msg: String) {
-    if (debug(msg)) println("[%s] %s".format(name, msg))
+    if (debug(msg)) doLog(msg)
+  }
+
+  private def doLog(msg: String) {
+    println("[%s] %s".format(name, msg))
   }
 }