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.ResourceRead;
  20 import org.simantics.db.common.request.UniqueRead;
  21 import org.simantics.db.common.utils.ListUtils;
  22 import org.simantics.db.common.utils.NameUtils;
  23 import org.simantics.db.exception.DatabaseException;
  24 import org.simantics.db.layer0.QueryIndexUtils;
  25 import org.simantics.db.layer0.request.PossibleActiveModel;
  26 import org.simantics.db.layer0.util.RemoverUtil;
  27 import org.simantics.district.network.ontology.DistrictNetworkResource;
  28 import org.simantics.district.route.Waypoint;
  29 import org.simantics.district.route.ontology.RouteResource;
  30 import org.simantics.layer0.Layer0;
  31 import org.slf4j.Logger;
  32 import org.slf4j.LoggerFactory;
  33
  34 /**
  35  * @author Tuukka Lehtonen
  36  */
  37 public class RoutePersistence {
  38
  39     private static final Logger LOGGER = LoggerFactory.getLogger(RoutePersistence.class);
  40
  41     public static Resource getRouteFolder(ReadGraph graph, Resource model) throws DatabaseException {
  42         List<Resource> diagrams = QueryIndexUtils.searchByType(graph, model, RouteResource.getInstance(graph).RouteFolder);
  43         if (diagrams.size() > 0)
  44             return diagrams.get(0);
  45         return null;
  46     }
  47
  48     public static Resource getOrCreateRouteFolder(WriteGraph graph, Resource model) throws DatabaseException {
  49         Resource rf = getRouteFolder(graph, model);
  50         if (rf == null) {
  51             Layer0 L0 = Layer0.getInstance(graph);
  52             RouteResource RR = RouteResource.getInstance(graph);
  53             rf = graph.newResource();
  54             graph.claim(rf, L0.InstanceOf, null, RR.RouteFolder);
  55             graph.claimLiteral(rf, L0.HasName, L0.NameOf, L0.String, UUID.randomUUID().toString(), Bindings.STRING);
  56             graph.claim(model, L0.ConsistsOf, L0.PartOf, rf);
  57         }
  58         return rf;
  59     }
  60
  61     public static Resource createRoute(WriteGraph graph, Resource model, String label, List<Resource> waypoints) throws DatabaseException {
  62         Resource rf = getOrCreateRouteFolder(graph, model);
  63
  64         RouteResource RR = RouteResource.getInstance(graph);
  65         Layer0 L0 = Layer0.getInstance(graph);
  66
  67         Resource route = ListUtils.create(graph, RR.Route, waypoints);
  68         graph.claim(rf, L0.ConsistsOf, L0.PartOf, route);
  69         graph.claimLiteral(route, L0.HasName, UUID.randomUUID().toString(), Bindings.STRING);
  70         graph.claimLiteral(route, L0.HasLabel, label, Bindings.STRING);
  71
  72         LOGGER.info("Persisted route {} with label {} and waypoints {}", route, label, waypoints);
  73
  74         return route;
  75     }
  76
  77     public static void updateRoute(WriteGraph graph, Resource route, String label, List<Resource> waypoints) throws DatabaseException {
  78         RouteResource RR = RouteResource.getInstance(graph);
  79         Layer0 L0 = Layer0.getInstance(graph);
  80
  81         String existingLabel = graph.getPossibleRelatedValue(route, L0.HasLabel, Bindings.STRING);
  82         if (!ObjectUtils.objectEquals(existingLabel, label)) {
  83             graph.claimLiteral(route, L0.HasLabel, label, Bindings.STRING);
  84         }
  85
  86         List<Resource> existingWaypoints = ListUtils.toList(graph, route);
  87         if (!existingWaypoints.equals(waypoints)) {
  88             // TODO: optimize this
  89             ListUtils.removeElements(graph, route, new HashSet<>(existingWaypoints));
  90             ListUtils.createExisting(graph, RR.Route, waypoints);
  91         }
  92
  93         LOGGER.info("Updated route {} with label {} and waypoints {}", route, label, waypoints);
  94     }
  95
  96     public static void removeRoute(WriteGraph graph, Resource route) throws DatabaseException {
  97         RemoverUtil.remove(graph, route);
  98     }
  99
 100     public static Waypoint toWaypoint(ReadGraph graph, Resource waypoint) throws DatabaseException {
 101         DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
 102         Set<Resource> types = graph.getTypes(waypoint);
 103         String name = NameUtils.getSafeName(graph, waypoint);
 104         if (types.contains(DN.Vertex)) {
 105             String address = graph.getPossibleRelatedValue(waypoint, DN.Vertex_HasAddress, Bindings.STRING);
 106             String label = address != null
 107                     ? NLS.bind("Node {0} - {1}", name, address).trim()
 108                     : NLS.bind("Node {0}", name, address).trim();
 109             return new WaypointImpl(waypoint, label);
 110         } else if (types.contains(DN.Edge)) {
 111             return new WaypointImpl(waypoint, NLS.bind("Edge {0}", name));
 112         }
 113         LOGGER.warn("Tried to convert unrecognized resource {} to a route waypoint", waypoint);
 114         return null;
 115     }
 116
 117     public static List<Waypoint> toWaypoints(ReadGraph graph, List<Resource> waypoints) throws DatabaseException {
 118         List<Waypoint> result = new ArrayList<>();
 119         for (Resource wpr : waypoints) {
 120             Waypoint wp = toWaypoint(graph, wpr);
 121             if (wp != null)
 122                 result.add(wp);
 123         }
 124         return result;
 125     }
 126
 127     public static List<RouteImpl> findRoutes(ReadGraph graph, Resource model) throws DatabaseException {
 128         Resource rf = model != null ? getRouteFolder(graph, model) : null;
 129         if (rf == null)
 130             return Collections.emptyList();
 131
 132         Layer0 L0 = Layer0.getInstance(graph);
 133         RouteResource RR = RouteResource.getInstance(graph);
 134
 135         List<RouteImpl> routes = new ArrayList<>();
 136
 137         for (Resource route : graph.syncRequest(new ObjectsWithType(rf, L0.ConsistsOf, RR.Route))) {
 138             RouteImpl ri = new RouteImpl(graph.getRelatedValue(route, L0.HasLabel, Bindings.STRING))
 139                     .backend(route)
 140                     .modelEntity(model)
 141                     .waypoints(toWaypoints(graph, ListUtils.toList(graph, route)));
 142             routes.add(ri);
 143         }
 144
 145         return routes;
 146     }
 147
 148     public static class ModelRoutesRequest extends ResourceRead<List<RouteImpl>> {
 149         public ModelRoutesRequest(Resource model) {
 150             super(model);
 151         }
 152         @Override
 153         public List<RouteImpl> perform(ReadGraph graph) throws DatabaseException {
 154             return findRoutes(graph, resource);
 155         }
 156     }
 157
 158     public static class ActiveModelRoutesRequest extends UniqueRead<List<RouteImpl>> {
 159         @Override
 160         public List<RouteImpl> perform(ReadGraph graph) throws DatabaseException {
 161             return findRoutes(graph, graph.syncRequest(new PossibleActiveModel(Simantics.getProjectResource())));
 162         }
 163     }
 164
 165     public static List<Resource> toResources(List<Waypoint> waypoints) {
 166         return waypoints.stream()
 167                 .<Resource>map(Waypoint::getObject)
 168                 .collect(Collectors.toList());
 169     }
 170
 171 }