1 package org.simantics.db.common.utils;
3 import java.util.Collections;
5 import org.simantics.databoard.Bindings;
6 import org.simantics.db.ReadGraph;
7 import org.simantics.db.Resource;
8 import org.simantics.db.common.NamedResource;
9 import org.simantics.db.common.request.ResourceRead;
10 import org.simantics.db.exception.DatabaseException;
11 import org.simantics.layer0.Layer0;
12 import org.simantics.utils.datastructures.MapList;
14 public class VersionInfoRequest extends ResourceRead<VersionInfo> {
16 public VersionInfoRequest(Resource resource) {
21 public VersionInfo perform(ReadGraph graph) throws DatabaseException {
23 Layer0 L0 = Layer0.getInstance(graph);
25 String baseName = graph.getPossibleRelatedValue(resource, L0.HasName, Bindings.STRING);
28 if(baseName != null) {
29 int pos = baseName.lastIndexOf('@');
31 version = baseName.substring(pos+1);
32 baseName = baseName.substring(0, pos);
36 Resource parent = graph.getPossibleObject(resource, L0.PartOf);
38 MapList<String,NamedResource> versionMap = graph.syncRequest(new VersionMapRequest(parent));
39 return new VersionInfo(baseName, version, versionMap.getValues(baseName));
42 return new VersionInfo(baseName, version, Collections.singleton(new NamedResource(version, resource)));