org.simantics.proconf.g3d.shapeeditor/src/org/simantics/proconf/g3d/shapeeditor/actions/ImportAction.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007- VTT Technical Research Centre of Finland.\r
   3  * All rights reserved. This program and the accompanying materials\r
   4  * are made available under the terms of the Eclipse Public License v1.0\r
   5  * which accompanies this distribution, and is available at\r
   6  * http://www.eclipse.org/legal/epl-v10.html\r
   7  *\r
   8  * Contributors:\r
   9  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  10  *******************************************************************************/\r
  11 package org.simantics.proconf.g3d.shapeeditor.actions;\r
  12 \r
  13 import java.io.BufferedInputStream;\r
  14 import java.io.File;\r
  15 import java.io.FileInputStream;\r
  16 import java.io.IOException;\r
  17 \r
  18 import org.eclipse.jface.action.Action;\r
  19 import org.eclipse.swt.SWT;\r
  20 import org.eclipse.swt.widgets.FileDialog;\r
  21 import org.simantics.db.Graph;\r
  22 import org.simantics.db.GraphRequestAdapter;\r
  23 import org.simantics.db.GraphRequestStatus;\r
  24 import org.simantics.db.Resource;\r
  25 import org.simantics.db.Statement;\r
  26 import org.simantics.layer0.utils.serialization.ConnectionPointList;\r
  27 import org.simantics.layer0.utils.serialization.TransferableGraph;\r
  28 import org.simantics.layer0.utils.serialization.TransferableGraphUtils;\r
  29 import org.simantics.proconf.g3d.shapeeditor.views.ShapeEditorBase;\r
  30 import org.simantics.utils.ui.ErrorLogger;\r
  31 \r
  32 public class ImportAction extends Action {\r
  33         \r
  34         private ShapeEditorBase parent;\r
  35         \r
  36         public ImportAction(ShapeEditorBase parent) {\r
  37                 this.parent = parent;\r
  38                 setText("Import");\r
  39                 setId("g3d shape import");\r
  40         }\r
  41         \r
  42         @Override\r
  43         public void run() {\r
  44                 try {\r
  45                         doImport();\r
  46                 } catch (IOException e) {\r
  47                         ErrorLogger.defaultLogError(e);\r
  48                 }\r
  49         }\r
  50         \r
  51         private void doImport() throws IOException {\r
  52                 FileDialog dialog = new FileDialog(parent.getRenderingComposite().getShell(),SWT.OPEN);\r
  53                 String filename = dialog.open();\r
  54                 if (filename == null)\r
  55                         return;\r
  56                 File file = new File(filename);\r
  57                 FileInputStream fis = new FileInputStream(file);\r
  58                 BufferedInputStream bis = new BufferedInputStream(fis);\r
  59                 byte[] data = new byte[0];\r
  60                 byte[] buf = new byte[256];\r
  61                 int res = 0;\r
  62                 while ((res = bis.read(buf)) != -1) {\r
  63                         byte[] newData = new byte[data.length + res];\r
  64                         System.arraycopy(data, 0, newData, 0, data.length);\r
  65                         System.arraycopy(buf, 0, newData, data.length, res);\r
  66                         data = newData;\r
  67                 }\r
  68                 bis.close();\r
  69                 final byte fdata[] = data;\r
  70                 parent.getSession().asyncWrite(new GraphRequestAdapter() {\r
  71                         @Override\r
  72                         public GraphRequestStatus perform(Graph g) throws Exception {\r
  73                                 TransferableGraph sg = TransferableGraphUtils.deserialize(fdata);\r
  74                                 ConnectionPointList purposes = TransferableGraphUtils.integrateTransferableGraph(g, sg, null);\r
  75                                 Resource modelResource = purposes.getSingleByDescription(TransferableGraphUtils.CP_OBJECT).resource;\r
  76                     Resource currentModelResource = parent.getModelResource();\r
  77                     for (Statement s : g.getStatements(modelResource)) {\r
  78                         g.removeStatements(currentModelResource, s.getPredicate());\r
  79                     }\r
  80                                 for (Statement s : g.getStatements(modelResource)) {\r
  81                                         \r
  82                                         g.removeStatement(s);\r
  83                                         g.addStatement(currentModelResource, s.getPredicate(), s.getObject());\r
  84                                 }\r
  85                     \r
  86                                 return GraphRequestStatus.transactionComplete();\r
  87                         }\r
  88                 });\r
  89         }\r
  90 \r
  91 }\r