gerrit.simantics Code Review - simantics/3d.git/blob

   1 package org.simantics.proconf.g3d.shapeeditor.actions;\r
   2 \r
   3 import java.io.BufferedInputStream;\r
   4 import java.io.File;\r
   5 import java.io.FileInputStream;\r
   6 import java.io.IOException;\r
   7 \r
   8 import org.eclipse.jface.action.Action;\r
   9 import org.eclipse.swt.SWT;\r
  10 import org.eclipse.swt.widgets.FileDialog;\r
  11 import org.simantics.db.Graph;\r
  12 import org.simantics.db.GraphRequestAdapter;\r
  13 import org.simantics.db.GraphRequestStatus;\r
  14 import org.simantics.db.Resource;\r
  15 import org.simantics.db.Statement;\r
  16 import org.simantics.layer0.utils.serialization.ConnectionPointList;\r
  17 import org.simantics.layer0.utils.serialization.TransferableGraph;\r
  18 import org.simantics.layer0.utils.serialization.TransferableGraphUtils;\r
  19 import org.simantics.proconf.g3d.shapeeditor.views.ShapeEditorBase;\r
  20 import org.simantics.utils.ui.ErrorLogger;\r
  21 \r
  22 public class ImportAction extends Action {\r
  23         \r
  24         private ShapeEditorBase parent;\r
  25         \r
  26         public ImportAction(ShapeEditorBase parent) {\r
  27                 this.parent = parent;\r
  28                 setText("Import");\r
  29                 setId("g3d shape import");\r
  30         }\r
  31         \r
  32         @Override\r
  33         public void run() {\r
  34                 try {\r
  35                         doImport();\r
  36                 } catch (IOException e) {\r
  37                         ErrorLogger.defaultLogError(e);\r
  38                 }\r
  39         }\r
  40         \r
  41         private void doImport() throws IOException {\r
  42                 FileDialog dialog = new FileDialog(parent.getRenderingComposite().getShell(),SWT.OPEN);\r
  43                 String filename = dialog.open();\r
  44                 if (filename == null)\r
  45                         return;\r
  46                 File file = new File(filename);\r
  47                 FileInputStream fis = new FileInputStream(file);\r
  48                 BufferedInputStream bis = new BufferedInputStream(fis);\r
  49                 byte[] data = new byte[0];\r
  50                 byte[] buf = new byte[256];\r
  51                 int res = 0;\r
  52                 while ((res = bis.read(buf)) != -1) {\r
  53                         byte[] newData = new byte[data.length + res];\r
  54                         System.arraycopy(data, 0, newData, 0, data.length);\r
  55                         System.arraycopy(buf, 0, newData, data.length, res);\r
  56                         data = newData;\r
  57                 }\r
  58                 bis.close();\r
  59                 final byte fdata[] = data;\r
  60                 parent.getSession().asyncWrite(new GraphRequestAdapter() {\r
  61                         @Override\r
  62                         public GraphRequestStatus perform(Graph g) throws Exception {\r
  63                                 TransferableGraph sg = TransferableGraphUtils.deserialize(fdata);\r
  64                                 ConnectionPointList purposes = TransferableGraphUtils.integrateTransferableGraph(g, sg, null);\r
  65                                 Resource modelResource = purposes.getSingleByDescription(TransferableGraphUtils.CP_OBJECT).resource;\r
  66                     Resource currentModelResource = parent.getModelResource();\r
  67                     for (Statement s : g.getStatements(modelResource)) {\r
  68                         g.removeStatements(currentModelResource, s.getPredicate());\r
  69                     }\r
  70                                 for (Statement s : g.getStatements(modelResource)) {\r
  71                                         \r
  72                                         g.removeStatement(s);\r
  73                                         g.addStatement(currentModelResource, s.getPredicate(), s.getObject());\r
  74                                 }\r
  75                     \r
  76                                 return GraphRequestStatus.transactionComplete();\r
  77                         }\r
  78                 });\r
  79         }\r
  80 \r
  81 }\r