org.simantics.district.route/src/org/simantics/district/route/internal/RoutePersistence.java

   1 package org.simantics.district.route.internal;
   2
   3 import java.util.ArrayList;
   4 import java.util.Collections;
   5 import java.util.HashSet;
   6 import java.util.List;
   7 import java.util.Set;
   8 import java.util.UUID;
   9 import java.util.stream.Collectors;
  10
  11 import org.eclipse.osgi.util.NLS;
  12 import org.simantics.Simantics;
  13 import org.simantics.databoard.Bindings;
  14 import org.simantics.databoard.util.ObjectUtils;
  15 import org.simantics.db.ReadGraph;
  16 import org.simantics.db.Resource;
  17 import org.simantics.db.WriteGraph;
  18 import org.simantics.db.common.request.ObjectsWithType;
  19 import org.simantics.db.common.request.UniqueRead;
  20 import org.simantics.db.common.utils.ListUtils;
  21 import org.simantics.db.common.utils.NameUtils;
  22 import org.simantics.db.exception.DatabaseException;
  23 import org.simantics.db.layer0.QueryIndexUtils;
  24 import org.simantics.db.layer0.request.PossibleActiveModel;
  25 import org.simantics.db.layer0.util.RemoverUtil;
  26 import org.simantics.district.network.ontology.DistrictNetworkResource;
  27 import org.simantics.district.route.Waypoint;
  28 import org.simantics.district.route.ontology.RouteResource;
  29 import org.simantics.layer0.Layer0;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 /**
  34  * @author Tuukka Lehtonen
  35  */
  36 public class RoutePersistence {
  37
  38     private static final Logger LOGGER = LoggerFactory.getLogger(RoutePersistence.class);
  39
  40     public static Resource getRouteFolder(ReadGraph graph, Resource model) throws DatabaseException {
  41         List<Resource> diagrams = QueryIndexUtils.searchByType(graph, model, RouteResource.getInstance(graph).RouteFolder);
  42         if (diagrams.size() > 0)
  43             return diagrams.get(0);
  44         return null;
  45     }
  46
  47     public static Resource getOrCreateRouteFolder(WriteGraph graph, Resource model) throws DatabaseException {
  48         Resource rf = getRouteFolder(graph, model);
  49         if (rf == null) {
  50             Layer0 L0 = Layer0.getInstance(graph);
  51             RouteResource RR = RouteResource.getInstance(graph);
  52             rf = graph.newResource();
  53             graph.claim(rf, L0.InstanceOf, null, RR.RouteFolder);
  54             graph.claimLiteral(rf, L0.HasName, L0.NameOf, L0.String, UUID.randomUUID().toString(), Bindings.STRING);
  55             graph.claim(model, L0.ConsistsOf, L0.PartOf, rf);
  56         }
  57         return rf;
  58     }
  59
  60     public static Resource createRoute(WriteGraph graph, Resource model, String label, List<Resource> waypoints) throws DatabaseException {
  61         Resource rf = getOrCreateRouteFolder(graph, model);
  62
  63         RouteResource RR = RouteResource.getInstance(graph);
  64         Layer0 L0 = Layer0.getInstance(graph);
  65
  66         Resource route = ListUtils.create(graph, RR.Route, waypoints);
  67         graph.claim(rf, L0.ConsistsOf, L0.PartOf, route);
  68         graph.claimLiteral(route, L0.HasName, UUID.randomUUID().toString(), Bindings.STRING);
  69         graph.claimLiteral(route, L0.HasLabel, label, Bindings.STRING);
  70
  71         LOGGER.info("Persisted route {} with label {} and waypoints {}", route, label, waypoints);
  72
  73         return route;
  74     }
  75
  76     public static void updateRoute(WriteGraph graph, Resource route, String label, List<Resource> waypoints) throws DatabaseException {
  77         RouteResource RR = RouteResource.getInstance(graph);
  78         Layer0 L0 = Layer0.getInstance(graph);
  79
  80         String existingLabel = graph.getPossibleRelatedValue(route, L0.HasLabel, Bindings.STRING);
  81         if (ObjectUtils.objectEquals(existingLabel, label)) {
  82             graph.claimLiteral(route, L0.HasLabel, label, Bindings.STRING);
  83         }
  84
  85         List<Resource> existingWaypoints = ListUtils.toList(graph, route);
  86         if (!existingWaypoints.equals(waypoints)) {
  87             // TODO: optimize this
  88             ListUtils.removeElements(graph, route, new HashSet<>(existingWaypoints));
  89             ListUtils.createExisting(graph, RR.Route, waypoints);
  90         }
  91
  92         LOGGER.info("Updated route {} with label {} and waypoints {}", route, label, waypoints);
  93     }
  94
  95     public static void removeRoute(WriteGraph graph, Resource route) throws DatabaseException {
  96         RemoverUtil.remove(graph, route);
  97     }
  98
  99     public static Waypoint toWaypoint(ReadGraph graph, Resource waypoint) throws DatabaseException {
 100         DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
 101         Set<Resource> types = graph.getTypes(waypoint);
 102         String name = NameUtils.getSafeName(graph, waypoint);
 103         if (types.contains(DN.Vertex)) {
 104             String address = graph.getPossibleRelatedValue(waypoint, DN.Vertex_HasAddress, Bindings.STRING);
 105             String label = address != null
 106                     ? NLS.bind("Node {0} - {1}", name, address).trim()
 107                     : NLS.bind("Node {0}", name, address).trim();
 108             return new WaypointImpl(waypoint, label);
 109         } else if (types.contains(DN.Edge)) {
 110             return new WaypointImpl(waypoint, NLS.bind("Edge {0}", name));
 111         }
 112         LOGGER.warn("Tried to convert unrecognized resource {} to a route waypoint", waypoint);
 113         return null;
 114     }
 115
 116     public static List<Waypoint> toWaypoints(ReadGraph graph, List<Resource> waypoints) throws DatabaseException {
 117         List<Waypoint> result = new ArrayList<>();
 118         for (Resource wpr : waypoints) {
 119             Waypoint wp = toWaypoint(graph, wpr);
 120             if (wp != null)
 121                 result.add(wp);
 122         }
 123         return result;
 124     }
 125
 126     public static List<RouteImpl> findRoutes(ReadGraph graph, Resource model) throws DatabaseException {
 127         Resource rf = getRouteFolder(graph, model);
 128         if (rf == null)
 129             return Collections.emptyList();
 130
 131         Layer0 L0 = Layer0.getInstance(graph);
 132         RouteResource RR = RouteResource.getInstance(graph);
 133
 134         List<RouteImpl> routes = new ArrayList<>();
 135
 136         for (Resource route : graph.syncRequest(new ObjectsWithType(rf, L0.ConsistsOf, RR.Route))) {
 137             RouteImpl ri = new RouteImpl(graph.getRelatedValue(route, L0.HasLabel, Bindings.STRING))
 138                     .backend(route)
 139                     .modelEntity(model)
 140                     .waypoints(toWaypoints(graph, ListUtils.toList(graph, route)));
 141             routes.add(ri);
 142         }
 143
 144         return routes;
 145     }
 146
 147     public static class ActiveModelRoutesRequest extends UniqueRead<List<RouteImpl>> {
 148         @Override
 149         public List<RouteImpl> perform(ReadGraph graph) throws DatabaseException {
 150             return findRoutes(graph, graph.syncRequest(new PossibleActiveModel(Simantics.getProjectResource())));
 151         }
 152     }
 153
 154     public static List<Resource> toResources(List<Waypoint> waypoints) {
 155         return waypoints.stream()
 156                 .<Resource>map(Waypoint::getObject)
 157                 .collect(Collectors.toList());
 158     }
 159
 160 }