org.simantics.district.route/src/org/simantics/district/route/RouteJob.java

   1 package org.simantics.district.route;
   2
   3 import java.util.List;
   4 import java.util.Objects;
   5 import java.util.concurrent.CompletableFuture;
   6
   7 import org.eclipse.core.runtime.IProgressMonitor;
   8 import org.eclipse.core.runtime.IStatus;
   9 import org.eclipse.core.runtime.Status;
  10 import org.eclipse.core.runtime.jobs.Job;
  11 import org.simantics.ObjectIdentitySchedulingRule;
  12 import org.simantics.db.Resource;
  13 import org.simantics.district.route.internal.Activator;
  14 import org.simantics.district.route.internal.RoutePersistence;
  15 import org.slf4j.Logger;
  16 import org.slf4j.LoggerFactory;
  17
  18 /**
  19  * @author Tuukka Lehtonen
  20  * @since 6.09
  21  */
  22 public class RouteJob extends Job {
  23
  24     private static final Logger LOGGER = LoggerFactory.getLogger(RouteJob.class);
  25
  26     private RouterConfiguration config;
  27     private List<Resource> waypoints;
  28     private CompletableFuture<List<Resource>> callback;
  29
  30     public RouteJob(RouterConfiguration config, Route route, CompletableFuture<List<Resource>> callback) {
  31         super("Compute route");
  32         Objects.requireNonNull(callback, "Callback must be non-null");
  33         setUser(true);
  34         setRule(new ObjectIdentitySchedulingRule(route));
  35         this.config = config;
  36         this.waypoints = RoutePersistence.toResources(route.waypoints());
  37         this.callback = callback;
  38     }
  39
  40     @Override
  41     protected IStatus run(IProgressMonitor monitor) {
  42         List<Router> routers = Activator.getInstance().getRouteService().routers();
  43         for (Router router : routers) {
  44             try {
  45                 List<Resource> path = router.findShortestPath(config, waypoints);
  46                 if (!path.isEmpty()) {
  47                     callback.complete(path);
  48                     return Status.OK_STATUS;
  49                 }
  50             } catch (RoutingException e) {
  51                 LOGGER.error("Routing failed for waypoints {} and router {}", waypoints, router, e);
  52                 callback.completeExceptionally(e);
  53             }
  54         }
  55         LOGGER.info("No router could calculate route between waypoints {}. Available routers: {}", waypoints, routers);
  56         return Status.OK_STATUS;
  57     }
  58
  59 }