1 package org.simantics.db.layer0.request;
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3 import java.util.Collection;
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4 import java.util.Collections;
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5 import java.util.HashMap;
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6 import java.util.Map;
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8 import org.simantics.databoard.Bindings;
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9 import org.simantics.db.ReadGraph;
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10 import org.simantics.db.Resource;
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11 import org.simantics.db.common.request.ResourceRead2;
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12 import org.simantics.db.exception.DatabaseException;
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13 import org.simantics.db.layer0.adapter.Instances;
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14 import org.simantics.layer0.Layer0;
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15 import org.simantics.simulation.ontology.SimulationResource;
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18 * Returns a Name->Resource map for instances of given type in a given model.
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20 * Uses Dependencies-index for obtaining instances. Uses L0.HasName for
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23 * @author Antti Villberg
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25 public class PossibleModelInstances extends ResourceRead2<Map<String, Resource>> {
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28 * @parameter modelPart is a Resource with URI under a model e.g. model can
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29 * be found using L0.PartOf
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30 * @parameter type is the type to search instances for. The query returns
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31 * properly all instances of all subtypes.
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33 public PossibleModelInstances(Resource modelPart, Resource type) {
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34 super(modelPart, type);
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37 private Resource getModel(ReadGraph graph) throws DatabaseException {
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38 SimulationResource SIMU = SimulationResource.getInstance(graph);
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39 if (graph.isInstanceOf(resource, SIMU.Model)) {
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42 return graph.sync(new PossibleModel(resource));
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47 public Map<String, Resource> perform(ReadGraph graph) throws DatabaseException {
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49 Layer0 L0 = Layer0.getInstance(graph);
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51 Instances query = graph.getPossibleAdapter(resource2, Instances.class);
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53 return Collections.emptyMap();
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55 Resource model = getModel(graph);
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57 return Collections.emptyMap();
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59 Collection<Resource> queryResult = query.find(graph, model);
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60 if (queryResult.isEmpty())
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61 return Collections.emptyMap();
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63 Map<String, Resource> result = new HashMap<String, Resource>(queryResult.size());
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64 for(Resource instance : queryResult) {
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65 String name = graph.getPossibleRelatedValue(instance, L0.HasName, Bindings.STRING);
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67 result.put(name, instance);
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