add command for shut down all threads

server/src/main/java/DebugClInterface.kt

@@ -15,7 +15,8 @@ class DebugClInterface {
             "refloc - refresh all car locations\n" +
             "sonar [car_id] - get sonar data\n" +
             "dbinfo [car_id] [type] - refresh all car locations\n." +
-            "type is string name of value or int value. available values: MEMORYSTATS - 0"
+            "type is string name of value or int value. available values: MEMORYSTATS - 0\n" +
+            "stop - exit from this interface and stop all threads\n"
 
     fun run() {
 

server/src/main/java/ServerMain.kt

@@ -1,4 +1,5 @@
 import car.Dropper
+import car.client.Client
 
 val carServerPort: Int = 7925
 val webServerPort: Int = 7926
@@ -23,4 +24,5 @@ fun main(args: Array<String>) {
     carsDestroy.interrupt()
     carServer.interrupt()
     webServer.interrupt()
+    Client.shutDownClient()
 }

server/src/main/java/car/client/Client.kt

@@ -10,17 +10,22 @@ import java.net.ConnectException
 
 object Client {
 
+    val group: NioEventLoopGroup = NioEventLoopGroup()
     val bootstrap: Bootstrap = makeBootstrap()
 
     private fun makeBootstrap(): Bootstrap {
-        val group = NioEventLoopGroup()
         val b = Bootstrap()
         b.group(group).channel(NioSocketChannel().javaClass).handler(ClientInitializer())
                 .attr(AttributeKey.newInstance<String>("url"), "")
                 .attr(AttributeKey.newInstance<Int>("uid"), 0)
+                .attr(AttributeKey.newInstance<IntArray>("angles"), IntArray(0))
         return b
     }
 
+    fun shutDownClient() {
+        group.shutdownGracefully()
+    }
+
     fun <T> sendRequest(request: HttpRequest, host: String, port: Int, options: Map<String, T>) {
         try {
             bootstrap.attr(AttributeKey.valueOf<String>("url"), request.uri())