bundles/org.simantics.modeling/src/org/simantics/modeling/CreateSharedOntologyDialog.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2013 Association for Decentralized Information Management in\r
   3  * 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  *     Semantum Oy - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.modeling;\r
  13 \r
  14 import java.util.Map;\r
  15 \r
  16 import org.eclipse.core.runtime.Status;\r
  17 import org.eclipse.jface.dialogs.IDialogSettings;\r
  18 import org.eclipse.jface.layout.GridDataFactory;\r
  19 import org.eclipse.jface.layout.GridLayoutFactory;\r
  20 import org.eclipse.jface.resource.ImageDescriptor;\r
  21 import org.eclipse.jface.viewers.StructuredSelection;\r
  22 import org.eclipse.swt.SWT;\r
  23 import org.eclipse.swt.events.ModifyEvent;\r
  24 import org.eclipse.swt.events.ModifyListener;\r
  25 import org.eclipse.swt.widgets.Composite;\r
  26 import org.eclipse.swt.widgets.Control;\r
  27 import org.eclipse.swt.widgets.Label;\r
  28 import org.eclipse.swt.widgets.Shell;\r
  29 import org.eclipse.swt.widgets.Text;\r
  30 import org.eclipse.ui.PlatformUI;\r
  31 import org.simantics.Simantics;\r
  32 import org.simantics.db.ReadGraph;\r
  33 import org.simantics.db.Resource;\r
  34 import org.simantics.db.common.request.UniqueRead;\r
  35 import org.simantics.db.common.uri.UnescapedChildMapOfResource;\r
  36 import org.simantics.db.exception.DatabaseException;\r
  37 import org.simantics.ui.workbench.dialogs.ResourceSelectionDialog3;\r
  38 import org.simantics.utils.datastructures.Pair;\r
  39 \r
  40 public class CreateSharedOntologyDialog extends ResourceSelectionDialog3<Resource> {\r
  41 \r
  42         private String name;\r
  43         private Text t;\r
  44 \r
  45         public CreateSharedOntologyDialog(Shell shell,\r
  46                         Map<Resource, Pair<String, ImageDescriptor>> parameter, String title) {\r
  47                 super(shell, parameter, title);\r
  48                 this.name = "";\r
  49         }\r
  50 \r
  51         @Override\r
  52         protected IDialogSettings getBaseDialogSettings() {\r
  53                 return null;\r
  54         }\r
  55 \r
  56         @Override\r
  57         protected Control createExtendedContentArea(Composite parent) {\r
  58                 Composite c = new Composite(parent, SWT.NONE);\r
  59                 GridDataFactory.fillDefaults().grab(true, false).applyTo(c);\r
  60                 GridLayoutFactory.swtDefaults().numColumns(2).applyTo(c);\r
  61                 Label l = new Label(c, SWT.NONE); \r
  62                 l.setText("Enter URI for the shared library:  http://");\r
  63                 GridDataFactory.fillDefaults().grab(false, false).applyTo(l);\r
  64                 t = new Text(c, SWT.BORDER);\r
  65                 t.addModifyListener(new ModifyListener() {\r
  66                         @Override\r
  67                         public void modifyText(ModifyEvent e) {\r
  68                                 name = t.getText();\r
  69                                 validatePage();\r
  70                         }\r
  71                 });\r
  72                 GridDataFactory.fillDefaults().grab(true, false).applyTo(t);\r
  73                 validatePage();\r
  74                 return super.createExtendedContentArea(parent);\r
  75         }\r
  76 \r
  77         @Override\r
  78         public void create() {\r
  79                 super.create();\r
  80                 t.setFocus();\r
  81         }\r
  82         \r
  83         @Override\r
  84         protected void handleSelected(StructuredSelection selection) {\r
  85                 super.handleSelected(selection);\r
  86                 validatePage(); \r
  87         }\r
  88 \r
  89         protected void validatePage() {\r
  90                 StructuredSelection selection = getSelectedItems();\r
  91                 String error = validateName(name);\r
  92                 if (error != null) {\r
  93                         updateStatus(new Status(Status.ERROR, PlatformUI.PLUGIN_ID, error));\r
  94                 } else if (selection.isEmpty()) {\r
  95                         updateStatus(new Status(Status.ERROR, PlatformUI.PLUGIN_ID, "No Library selected"));\r
  96                 } else {\r
  97                         // Validate that the name is not in use.\r
  98                         Resource library = (Resource) selection.getFirstElement();\r
  99                         try {\r
 100                                 Map<String, Resource> children = Simantics.sync(new UnescapedChildMapOfResource(library));\r
 101                                 if (children.containsKey(name)) {\r
 102                                         updateStatus(new Status(Status.ERROR, PlatformUI.PLUGIN_ID, "Name is already in use."));\r
 103                                 } else {\r
 104                                         updateStatus(new Status(Status.OK, PlatformUI.PLUGIN_ID, ""));\r
 105                                 }\r
 106                         } catch (DatabaseException e) {\r
 107                                 updateStatus(new Status(Status.ERROR, PlatformUI.PLUGIN_ID, "Failed to check validity of name. See error log.", e));\r
 108                         }\r
 109                 }\r
 110         }\r
 111 \r
 112         protected String validateName(final String name) {\r
 113                 \r
 114                 try {\r
 115                         boolean inUse = Simantics.sync(new UniqueRead<Boolean>() {\r
 116 \r
 117                                 @Override\r
 118                                 public Boolean perform(ReadGraph graph) throws DatabaseException {\r
 119                                         Resource r = graph.getPossibleResource("http://" + name + "@A");\r
 120                                         return r != null;\r
 121                                 }\r
 122                                 \r
 123                         });\r
 124                         if(inUse) return "Shared Library exists already";\r
 125                 } catch (DatabaseException e) {\r
 126                         return e.getMessage();\r
 127                 }\r
 128                 \r
 129                 if (name.trim().isEmpty())\r
 130                         return "Name cannot be empty";\r
 131                 if (name.startsWith("."))\r
 132                         return "Name cannot begin with a dot";\r
 133                 if (name.startsWith("/"))\r
 134                         return "Name cannot begin with a slash";\r
 135                 if (name.contains("//"))\r
 136                         return "Successive slashes are not allowed";\r
 137                 if (name.endsWith("/"))\r
 138                         return "Name cannot end with slash";\r
 139                 return null;\r
 140         }\r
 141 \r
 142         public String getName() {\r
 143                 return name;\r
 144         }\r
 145 \r
 146 }