org.simantics.district.network/src/org/simantics/district/network/DistrictNetworkUtil.java

   1 package org.simantics.district.network;
   2
   3 import java.util.Collection;
   4 import java.util.Iterator;
   5
   6 import org.simantics.databoard.Bindings;
   7 import org.simantics.db.ReadGraph;
   8 import org.simantics.db.Resource;
   9 import org.simantics.db.WriteGraph;
  10 import org.simantics.db.common.utils.OrderedSetUtils;
  11 import org.simantics.db.exception.DatabaseException;
  12 import org.simantics.diagram.stubs.DiagramResource;
  13 import org.simantics.diagram.synchronization.graph.DiagramGraphUtil;
  14 import org.simantics.diagram.synchronization.graph.layer.GraphLayer;
  15 import org.simantics.diagram.synchronization.graph.layer.IGraphLayerUtil;
  16 import org.simantics.district.network.ontology.DistrictNetworkResource;
  17 import org.simantics.layer0.Layer0;
  18 import org.simantics.operation.Layer0X;
  19
  20 public class DistrictNetworkUtil {
  21
  22     public static Resource createEdge(WriteGraph graph, Resource composite) throws DatabaseException {
  23         Layer0 L0 = Layer0.getInstance(graph);
  24         DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
  25
  26         Resource edge = graph.newResource();
  27         graph.claim(edge, L0.InstanceOf, DN.Edge);
  28
  29         Resource defaultEdgeMapping = graph.getPossibleObject(composite, DN.EdgeDefaultMapping);
  30         graph.claim(edge, DN.HasMapping, defaultEdgeMapping);
  31
  32         OrderedSetUtils.add(graph, composite, edge);
  33         graph.claim(composite, L0.ConsistsOf, L0.PartOf, edge);
  34
  35         claimFreshElementName(graph, composite, edge);
  36         return edge;
  37     }
  38
  39     public static Resource createVertex(WriteGraph graph, Resource composite, double[] coords) throws DatabaseException {
  40         Resource defaultVertexMapping = graph.getPossibleObject(composite, DistrictNetworkResource.getInstance(graph).VertexDefaultMapping);
  41         return createVertex(graph, composite, coords, defaultVertexMapping);
  42     }
  43
  44     public static Resource createVertex(WriteGraph graph, Resource composite, double[] coords, Resource mapping) throws DatabaseException {
  45         Layer0 L0 = Layer0.getInstance(graph);
  46         DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
  47         DiagramResource DIA = DiagramResource.getInstance(graph);
  48         Resource vertex = graph.newResource();
  49         graph.claim(vertex, L0.InstanceOf, DN.Vertex);
  50         graph.claimLiteral(vertex, DIA.HasLocation, coords);
  51
  52         graph.claim(vertex, DN.HasMapping, mapping);
  53
  54         OrderedSetUtils.add(graph, composite, vertex);
  55         graph.claim(composite, L0.ConsistsOf, L0.PartOf, vertex);
  56
  57         claimFreshElementName(graph, composite, vertex);
  58
  59         // We need to put GraphLayer to newLayers so...
  60         for (Resource layer : graph.getObjects(composite, DiagramResource.getInstance(graph).HasLayer)) {
  61             IGraphLayerUtil layerUtil = graph.adapt(graph.getSingleObject(layer, Layer0.getInstance(graph).InstanceOf), IGraphLayerUtil.class);
  62
  63             GraphLayer gl = layerUtil.loadLayer(graph, layer);
  64             gl.forEachTag(tag -> {
  65                 DiagramGraphUtil.tag(graph, vertex, tag, true);
  66             });
  67         }
  68
  69         return vertex;
  70     }
  71
  72     public static Resource joinVertices(WriteGraph graph, Collection<Resource> vertices) throws DatabaseException {
  73         if (vertices.isEmpty())
  74             throw new IllegalArgumentException("vertices-collection should not be empty for joining vertices!");
  75         DistrictNetworkResource DN = DistrictNetworkResource.getInstance(graph);
  76         Iterator<Resource> verticeIterator = vertices.iterator();
  77         Resource master = verticeIterator.next();
  78         while (verticeIterator.hasNext()) {
  79             Resource slave = verticeIterator.next();
  80             Resource composite = graph.getSingleObject(slave, Layer0.getInstance(graph).PartOf);
  81             Collection<Resource> startVertexEdges = graph.getObjects(slave, DN.HasStartVertex_Inverse);
  82             for (Resource startVertexEdge : startVertexEdges) {
  83                 graph.deny(startVertexEdge, DN.HasStartVertex);
  84                 graph.claim(startVertexEdge, DN.HasStartVertex, master);
  85             }
  86             Collection<Resource> endVertexEdges = graph.getObjects(slave, DN.HasEndVertex_Inverse);
  87             for (Resource endVertexEdge : endVertexEdges) {
  88                 graph.deny(endVertexEdge, DN.HasEndVertex);
  89                 graph.claim(endVertexEdge, DN.HasEndVertex, master);
  90             }
  91             OrderedSetUtils.remove(graph, composite, slave);
  92             // Remove ConsistsOf statement
  93             graph.deny(composite, Layer0.getInstance(graph).ConsistsOf, slave);
  94         }
  95         return master;
  96     }
  97
  98     public static double calculateDistance(ReadGraph graph, Resource startVertex, Resource endVertex) throws DatabaseException {
  99         Layer0 L0 = Layer0.getInstance(graph);
 100         Resource startComposite = graph.getSingleObject(startVertex, L0.PartOf);
 101         Resource endComposite = graph.getSingleObject(endVertex, L0.PartOf);
 102         if (!startComposite.equalsResource(endComposite)) {
 103             throw new DatabaseException("Can not calculate distance between vertices on different composites! " + startVertex + " -> " + endVertex);
 104         }
 105         Resource crs = graph.getSingleObject(startComposite, DistrictNetworkResource.getInstance(graph).HasSpatialRefSystem);
 106
 107         CRS crsClass = graph.adapt(crs, CRS.class);
 108
 109         double[] startCoords = graph.getRelatedValue2(startVertex, DiagramResource.getInstance(graph).HasLocation, Bindings.DOUBLE_ARRAY);
 110         double[] endCoords = graph.getRelatedValue2(endVertex, DiagramResource.getInstance(graph).HasLocation, Bindings.DOUBLE_ARRAY);
 111
 112         return crsClass.calculateDistance(startCoords, endCoords);
 113     }
 114
 115     public static final String claimFreshElementName(WriteGraph graph, Resource diagram, Resource element) throws DatabaseException {
 116         Layer0 L0 = Layer0.getInstance(graph);
 117         DiagramResource DIA = DiagramResource.getInstance(graph);
 118         // Get name prefix from diagram
 119         String namePrefix = graph.getPossibleRelatedValue2(diagram, Layer0X.getInstance(graph).HasGeneratedNamePrefix);
 120         if (namePrefix == null)
 121             namePrefix = "";
 122         // Give running name to element and increment the counter attached to the diagram.
 123         Long l = graph.getPossibleRelatedValue(diagram, DIA.HasModCount, Bindings.LONG);
 124         if (l == null)
 125             l = Long.valueOf(0L);
 126         String name = namePrefix + l.toString();
 127         graph.claimLiteral(element, L0.HasName, name, Bindings.STRING);
 128         graph.claimLiteral(diagram, DIA.HasModCount, ++l, Bindings.LONG);
 129         return name;
 130     }
 131 }