bundles/org.simantics.graphfile/src/org/simantics/graphfile/adapters/ExportSystemResourcesActionFactory.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2013 Association for Decentralized Information Management\r
   3  * in Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.graphfile.adapters;\r
  13 \r
  14 import java.io.File;\r
  15 import java.io.IOException;\r
  16 \r
  17 import org.eclipse.core.runtime.IStatus;\r
  18 import org.eclipse.core.runtime.Status;\r
  19 import org.eclipse.jface.dialogs.MessageDialog;\r
  20 import org.eclipse.swt.SWT;\r
  21 import org.eclipse.swt.widgets.DirectoryDialog;\r
  22 import org.eclipse.swt.widgets.Display;\r
  23 import org.eclipse.swt.widgets.FileDialog;\r
  24 import org.eclipse.swt.widgets.Shell;\r
  25 import org.simantics.Simantics;\r
  26 import org.simantics.db.ReadGraph;\r
  27 import org.simantics.db.Resource;\r
  28 import org.simantics.db.common.request.ReadRequest;\r
  29 import org.simantics.db.exception.DatabaseException;\r
  30 import org.simantics.db.layer0.adapter.ActionFactory;\r
  31 import org.simantics.db.request.Read;\r
  32 import org.simantics.graphfile.Activator;\r
  33 import org.simantics.graphfile.ontology.GraphFileResource;\r
  34 import org.simantics.graphfile.util.GraphFileUtil;\r
  35 import org.simantics.layer0.Layer0;\r
  36 import org.simantics.utils.ui.dialogs.ShowError;\r
  37 \r
  38 /**\r
  39  * \r
  40  * @author Marko Luukkainen <marko.luukkainen@vtt.fi>\r
  41  *\r
  42  */\r
  43 public class ExportSystemResourcesActionFactory implements ActionFactory{\r
  44         \r
  45         enum ResourceType{FILE,FOLDER,UNKNOW};\r
  46         \r
  47         @Override\r
  48         public Runnable create(Object _target) {\r
  49                 final Resource target = (Resource)_target;\r
  50                 return new Runnable() {\r
  51                         \r
  52                         @Override\r
  53                         public void run() {\r
  54                                 try {\r
  55                                         Shell shell= Display.getCurrent().getActiveShell();\r
  56                                         \r
  57                                         ResourceType type = getResourceType(target);\r
  58                                 \r
  59                                         if (type == ResourceType.UNKNOW)\r
  60                                                 return;\r
  61                                         \r
  62                                         String name = getName(target);\r
  63                                         \r
  64                                         String exportName = null;\r
  65                                         \r
  66                                         if (type == ResourceType.FILE) {\r
  67                                                 FileDialog dialog = new FileDialog(shell, SWT.SAVE);\r
  68                                                 dialog.setFileName(name);\r
  69                                                 exportName = dialog.open();\r
  70                                         } else {\r
  71                                                 DirectoryDialog dialog = new DirectoryDialog(shell, SWT.SAVE);\r
  72                                                 exportName = dialog.open();\r
  73                                         }\r
  74                                         if (exportName == null)\r
  75                                                 return;\r
  76                                         \r
  77                                         final File targetFile = new File(exportName);\r
  78                                         \r
  79                                         if (type == ResourceType.FILE) {\r
  80                                                 exportFile(shell, targetFile, target);\r
  81                                                 \r
  82                                         } else {\r
  83                                                 exportFolder(shell, targetFile, target);\r
  84                                         }\r
  85                                 \r
  86                                 } catch (Exception e) {\r
  87                                         Activator.getDefault().getLog().log(new Status(IStatus.ERROR, Activator.PLUGIN_ID, "Failed to export file/folder to disk: " + target , e));\r
  88                                         ShowError.showError("Error", e.getMessage(), e);\r
  89                                 } \r
  90                                 \r
  91                         }\r
  92                 };\r
  93         }\r
  94         \r
  95         private String getName(final Resource resource) throws DatabaseException {\r
  96                 return Simantics.getSession().syncRequest(new Read<String>() {\r
  97                         \r
  98                         public String perform(ReadGraph graph) throws DatabaseException {       \r
  99                                 Layer0 l0 = Layer0.getInstance(graph);\r
 100                                 return graph.getPossibleRelatedValue(resource, l0.HasName);\r
 101                          }\r
 102                 });\r
 103         }\r
 104         \r
 105         private ResourceType getResourceType(final Resource resource) throws DatabaseException {\r
 106                 return Simantics.getSession().syncRequest(new Read<ResourceType>() {\r
 107                         \r
 108                         public ResourceType perform(ReadGraph graph) throws DatabaseException { \r
 109                                 GraphFileResource gf = GraphFileResource.getInstance(graph);\r
 110                                 if (graph.isInstanceOf(resource, gf.File))\r
 111                                         return ResourceType.FILE;\r
 112                                 if (graph.isInstanceOf(resource, gf.Folder))\r
 113                                         return ResourceType.FOLDER;\r
 114                                 return ResourceType.UNKNOW;\r
 115                         }\r
 116                 });\r
 117         }\r
 118         \r
 119         private void exportFile(Shell shell, final File targetFile, final Resource target) throws Exception{\r
 120                 if (targetFile.exists()) {\r
 121                         if (!targetFile.isFile()) {\r
 122                         MessageDialog.openError(shell, "File Problem", "Output target is not a file " + targetFile.getAbsolutePath());\r
 123                 return;\r
 124                 }\r
 125                         boolean ok = MessageDialog.openConfirm(shell, "Overwrite", "A file by the name " + targetFile.getAbsolutePath() + " contains files.\n\nDo you want to overwrite the files?");\r
 126                 if (!ok) {\r
 127                         return;\r
 128                 }\r
 129                 if (!targetFile.delete()) {\r
 130                         MessageDialog.openError(shell, "Delete Problem", "Could not overwrite previously existing file " + targetFile.getAbsolutePath());\r
 131                 return;\r
 132                 }\r
 133                 }\r
 134                 Simantics.getSession().syncRequest(new ReadRequest() {\r
 135                         \r
 136                         @Override\r
 137                         public void run(ReadGraph graph) throws DatabaseException {\r
 138                                 try {\r
 139                                         GraphFileUtil.writeDataToFile(graph, target , targetFile);\r
 140                                 } catch (IOException e) {\r
 141                                         throw new DatabaseException(e);\r
 142                                 }\r
 143                                 \r
 144                         }\r
 145                 });\r
 146         }\r
 147         \r
 148         private void exportFolder(Shell shell, final File targetFile, final Resource target) throws Exception{\r
 149                 if (targetFile.exists()) {\r
 150                         if (!targetFile.isDirectory()) {\r
 151                                 MessageDialog.openError(shell, "Folder Problem", "Output target is not a folder " + targetFile.getAbsolutePath());\r
 152                                 return;\r
 153                         }\r
 154                         String files[] = targetFile.list();\r
 155                         if (files.length > 0) {\r
 156                                 boolean ok = MessageDialog.openConfirm(shell, "Overwrite", "A folder by the name " + targetFile.getAbsolutePath() + " contains files.\n\nDo you want to overwrite the files?");\r
 157                                 if (!ok) {\r
 158                                         return;\r
 159                                 }\r
 160                                 GraphFileUtil.clearDirectoryStructure(targetFile);\r
 161                         }\r
 162 \r
 163                 } else {\r
 164                         if (!targetFile.mkdir()) {\r
 165                                 MessageDialog.openError(shell, "Folder Problem", "Could not create new folder " + targetFile);\r
 166                                 return;\r
 167                         }\r
 168                 }\r
 169                 Simantics.getSession().syncRequest(new ReadRequest() {\r
 170                         \r
 171                         @Override\r
 172                         public void run(ReadGraph graph) throws DatabaseException {\r
 173                                 try {\r
 174                                         GraphFileUtil.writeFolderToDisk(graph, target, targetFile);\r
 175                                 } catch (IOException e) {\r
 176                                         throw new DatabaseException(e);\r
 177                                 }\r
 178                                 \r
 179                         }\r
 180                 });\r
 181         }\r
 182 \r
 183 }\r