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[simantics/platform.git] / 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 }