Feature do not temp store uploaded files (#763)

* Upload artefacts directly without creating a temp file
* Remove redundant code that checks if user tries to update a directory
* Handle UI upload exceptions, use Spring thread pool
* Clean up code
* Fix review findings
* Fix Sonar findings

Signed-off-by: Stefan Klotz <stefan.klotz@bosch-si.com>
Signed-off-by: Stefan Behl <stefan.behl@bosch-si.com>

hawkbit-repository/hawkbit-repository-api/src/main/java/org/eclipse/hawkbit/repository/model/TargetWithActionType.java

@@ -25,9 +25,7 @@ public class TargetWithActionType {
     private String maintenanceWindowTimeZone;
 
     public TargetWithActionType(final String controllerId) {
-        this.controllerId = controllerId;
-        this.actionType = ActionType.FORCED;
-        this.forceTime = 0;
+        this(controllerId, ActionType.FORCED, 0);
     }
 
     public TargetWithActionType(final String controllerId, final ActionType actionType, final long forceTime) {
@@ -115,4 +113,13 @@ public class TargetWithActionType {
     public String getMaintenanceWindowTimeZone() {
         return maintenanceWindowTimeZone;
     }
+
+    @Override
+    public String toString() {
+        return "TargetWithActionType [controllerId=" + controllerId + ", actionType=" + getActionType() + ", forceTime="
+                + getForceTime() + ", maintenanceSchedule=" + getMaintenanceSchedule() + ", maintenanceWindowDuration="
+                + getMaintenanceWindowDuration() + ", maintenanceWindowTimeZone=" + getMaintenanceWindowTimeZone()
+                + "]";
+    }
+
 }