1 package org.simantics.document.ui.actions;
3 import java.io.IOException;
5 import org.simantics.Simantics;
6 import org.simantics.db.ReadGraph;
7 import org.simantics.db.Resource;
8 import org.simantics.db.WriteGraph;
9 import org.simantics.db.common.request.WriteRequest;
10 import org.simantics.db.common.utils.NameUtils;
11 import org.simantics.db.exception.DatabaseException;
12 import org.simantics.db.layer0.adapter.ActionFactory;
13 import org.simantics.document.DocumentResource;
14 import org.simantics.graphfile.util.GraphFileUtil;
15 import org.simantics.layer0.Layer0;
17 public class NewFileDocument implements ActionFactory {
21 public NewFileDocument(ReadGraph graph, String relationUri, String defaultName) throws DatabaseException {
22 relation = graph.getResource(relationUri);
23 this.defaultName = defaultName;
27 public Runnable create(Object target) {
29 if(!(target instanceof Resource))
32 final Resource resource = (Resource)target;
34 return new Runnable() {
37 Simantics.getSession().asyncRequest(new WriteRequest() {
40 public void perform(WriteGraph graph) throws DatabaseException {
41 graph.markUndoPoint();
43 Layer0 l0 = Layer0.getInstance(graph);
45 String name = NameUtils.findFreshName(graph, defaultName, resource, relation);
46 DocumentResource doc = DocumentResource.getInstance(graph);
48 Resource fileResource = graph.newResource();
49 graph.claim(fileResource, l0.InstanceOf, doc.FileDocument);
50 graph.claimLiteral(fileResource, l0.HasName, name);
51 graph.claim(resource, relation, fileResource);
53 GraphFileUtil.writeDataToGraph(graph, new byte[0], fileResource);
54 } catch (IOException e) {
55 throw new DatabaseException(e);