bundles/org.simantics.document.ui/src/org/simantics/document/ui/actions/NewFileDocument.java

   1 package org.simantics.document.ui.actions;\r
   2 \r
   3 import java.io.IOException;\r
   4 \r
   5 import org.simantics.db.ReadGraph;\r
   6 import org.simantics.db.Resource;\r
   7 import org.simantics.db.WriteGraph;\r
   8 import org.simantics.db.common.request.WriteRequest;\r
   9 import org.simantics.db.common.utils.NameUtils;\r
  10 import org.simantics.db.exception.DatabaseException;\r
  11 import org.simantics.db.layer0.adapter.ActionFactory;\r
  12 import org.simantics.document.DocumentResource;\r
  13 import org.simantics.graphfile.util.GraphFileUtil;\r
  14 import org.simantics.layer0.Layer0;\r
  15 import org.simantics.ui.SimanticsUI;\r
  16 \r
  17 public class NewFileDocument implements ActionFactory {\r
  18         Resource relation;\r
  19         String defaultName;\r
  20         \r
  21         public NewFileDocument(ReadGraph graph, String relationUri, String defaultName) throws DatabaseException {\r
  22                 relation = graph.getResource(relationUri);\r
  23                 this.defaultName = defaultName;\r
  24         }\r
  25         \r
  26         @Override\r
  27         public Runnable create(Object target) {\r
  28 \r
  29                 if(!(target instanceof Resource))\r
  30                         return null;\r
  31 \r
  32                 final Resource resource = (Resource)target;\r
  33 \r
  34                 return new Runnable() {\r
  35                         @Override\r
  36                         public void run() {\r
  37                                 SimanticsUI.getSession().asyncRequest(new WriteRequest() {\r
  38                                         \r
  39                                         @Override\r
  40                                         public void perform(WriteGraph graph) throws DatabaseException {\r
  41                                             graph.markUndoPoint();\r
  42                                             \r
  43                                                 Layer0 l0 = Layer0.getInstance(graph);\r
  44 \r
  45                             String name = NameUtils.findFreshName(graph, defaultName, resource, relation);\r
  46                                 DocumentResource doc = DocumentResource.getInstance(graph);\r
  47                                 \r
  48                                 Resource fileResource = graph.newResource();\r
  49                                 graph.claim(fileResource, l0.InstanceOf, doc.FileDocument);\r
  50                             graph.claimLiteral(fileResource, l0.HasName, name);\r
  51                             graph.claim(resource, relation, fileResource);\r
  52                             try {\r
  53                                 GraphFileUtil.writeDataToGraph(graph, new byte[0], fileResource);\r
  54                             } catch (IOException e) {\r
  55                                 throw new DatabaseException(e);\r
  56                             }\r
  57                                         }\r
  58                                         \r
  59                                 });\r
  60                         }\r
  61                 };\r
  62         }\r
  63 }\r