bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/QueryIndexUtils.java

   1 package org.simantics.db.layer0;
   2
   3 import java.util.ArrayList;
   4 import java.util.Collection;
   5 import java.util.List;
   6
   7 import org.simantics.datatypes.literal.GUID;
   8 import org.simantics.db.ReadGraph;
   9 import org.simantics.db.Resource;
  10 import org.simantics.db.common.procedure.adapter.TransientCacheListener;
  11 import org.simantics.db.common.utils.NameUtils;
  12 import org.simantics.db.exception.DatabaseException;
  13 import org.simantics.db.layer0.adapter.Instances;
  14 import org.simantics.db.layer0.adapter.impl.EntityInstances.QueryIndex;
  15 import org.simantics.db.layer0.genericrelation.IndexQueries;
  16 import org.simantics.db.layer0.util.Layer0Utils;
  17 import org.simantics.layer0.Layer0;
  18 import org.simantics.scl.runtime.function.Function1;
  19 import org.simantics.utils.datastructures.Triple;
  20
  21 public final class QueryIndexUtils {
  22
  23     public static List<Resource> searchByTypeShallow(ReadGraph graph, Resource model, Resource type) throws DatabaseException {
  24         return graph.syncRequest(new QueryIndex(model, type, ""), TransientCacheListener.<List<Resource>>instance());
  25     }
  26
  27     public static List<Resource> searchByType(ReadGraph graph, Resource model, Resource type) throws DatabaseException {
  28         Instances query = graph.adapt(type, Instances.class);
  29         return Layer0Utils.sortByCluster(graph, query.find(graph, model));
  30     }
  31
  32     public static List<Resource> searchByGUID(ReadGraph graph, Resource indexRoot, GUID guid) throws DatabaseException {
  33         return searchByGUID(graph, indexRoot, guid.indexString());
  34     }
  35
  36     public static List<Resource> searchByGUID(ReadGraph graph, Resource indexRoot, String indexString) throws DatabaseException {
  37         return searchByQueryShallow(graph, indexRoot, "GUID:" + IndexQueries.quoteTerm(indexString));
  38     }
  39
  40     public static List<Resource> searchByQueryShallow(ReadGraph graph, Resource model, String query) throws DatabaseException {
  41         return graph.syncRequest(new QueryIndex(model, Layer0.getInstance(graph).Entity, query), TransientCacheListener.<List<Resource>>instance());
  42     }
  43
  44     public static List<Resource> searchByQuery(ReadGraph graph, Resource model, String query) throws DatabaseException {
  45         Instances instances = graph.adapt(Layer0.getInstance(graph).Entity, Instances.class);
  46         Collection<Resource> queryResult = instances.find(graph, model, query);
  47         return Layer0Utils.sortByCluster(graph, queryResult);
  48     }
  49
  50     public static List<Resource> searchByTypeAndFilter(ReadGraph graph, Resource model, Resource type, Function1<Resource,Boolean> filter) throws DatabaseException {
  51         Instances query = graph.adapt(type, Instances.class);
  52         ArrayList<Resource> result =  new ArrayList<Resource>();
  53         for(Resource r : query.find(graph, model)) {
  54             if(filter.apply(r))
  55                 result.add(r);
  56         }
  57         return result;
  58     }
  59
  60     public static List<Triple<Resource, Resource, String>> getIndexEntries(ReadGraph graph, Resource model, String filter) throws DatabaseException {
  61         Layer0 L0 = Layer0.getInstance(graph);
  62         List<Resource> entries = searchByQuery(graph, model, filter);
  63         List<Triple<Resource, Resource, String>> listOfTriples = new ArrayList<Triple<Resource,Resource,String>>();
  64         for (Resource entry : entries) {
  65             Resource type = graph.getPossibleObject(entry, L0.InstanceOf);
  66             String name = NameUtils.getSafeName(graph, entry);
  67             listOfTriples.add(new Triple<Resource, Resource, String>(entry, type, name));
  68         }
  69         return listOfTriples;
  70     }
  71
  72     public static String listIndexEntries(ReadGraph graph, Resource model, String filter) throws DatabaseException {
  73         List<Triple<Resource, Resource, String>> listOfTriples = getIndexEntries(graph, model, filter);
  74         StringBuilder sb = new StringBuilder();
  75         sb.append("== LISTING INDEX ENTRIES OF INDEX: " + NameUtils.getSafeName(graph, model) + ". AMOUNT OF ENTRIES: " + listOfTriples.size() + " ==\n");
  76         for (Triple<Resource, Resource, String> entry : listOfTriples) {
  77             String instanceOf = NameUtils.getSafeName(graph, entry.second);
  78             sb.append("Name: " + entry.third + " instanceOf: " + instanceOf + " Resource: " + entry.first.toString() + "\n");
  79         }
  80         return sb.toString();
  81     }
  82
  83     public static List<Resource> searchByTypeAndName(ReadGraph graph, Resource model, Resource type, String name) throws DatabaseException {
  84         Instances query = graph.adapt(type, Instances.class);
  85         ArrayList<Resource> result =  new ArrayList<Resource>();
  86         for(Resource r : query.findByName(graph, model, name)) {
  87             if(graph.isInstanceOf(r, type))
  88                 result.add(r);
  89         }
  90         return result;
  91     }
  92
  93     public static List<Resource> searchByTypeAndNameShallow(ReadGraph graph, Resource model, Resource type, String name) throws DatabaseException {
  94         return graph.syncRequest(new QueryIndex(model, type, IndexQueries.quoteTerm(name)), TransientCacheListener.<List<Resource>>instance());
  95     }
  96 }