bundles/org.simantics.annotation.ui/src/org/simantics/annotation/ui/wizard/Preferences.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2012 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  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.annotation.ui.wizard;\r
  13 \r
  14 import java.util.Deque;\r
  15 import java.util.Iterator;\r
  16 import java.util.LinkedList;\r
  17 import java.util.Set;\r
  18 import java.util.TreeSet;\r
  19 \r
  20 import org.eclipse.ui.IMemento;\r
  21 import org.simantics.utils.ui.workbench.StringMemento;\r
  22 \r
  23 /**\r
  24  * @author Tuukka Lehtonen\r
  25  */\r
  26 public final class Preferences {\r
  27 \r
  28     public static final String  RECENT_ANNOTATION_TYPE_IMPORT_LOCATIONS = "RECENT_ANNOTATION_TYPE_IMPORT_LOCATIONS";\r
  29     public static final String  RECENT_ANNOTATION_TYPE_EXPORT_LOCATIONS = "RECENT_ANNOTATION_TYPE_EXPORT_LOCATIONS";\r
  30     public static final String  ANNOTATION_TYPE_EXPORT_OVERWRITE = "ANNOTATION_TYPE_EXPORT_OVERWRITE";\r
  31 \r
  32     private static final String TAG_PATH                = "path";\r
  33     private static final String ATTR_NAME               = "name";\r
  34 \r
  35     public static Deque<String> decodePaths(String recentPathsPref) {\r
  36         Deque<String> result = new LinkedList<String>();\r
  37         try {\r
  38             StringMemento sm = new StringMemento(recentPathsPref);\r
  39             for (IMemento m : sm.getChildren(TAG_PATH)) {\r
  40                 String name = m.getString(ATTR_NAME);\r
  41                 if (name != null && !name.isEmpty())\r
  42                     result.add(name);\r
  43             }\r
  44         } catch (IllegalArgumentException e) {\r
  45         }\r
  46         return result;\r
  47     }\r
  48 \r
  49     public static String encodePaths(Deque<String> recentPaths) {\r
  50         StringMemento sm = new StringMemento();\r
  51         for (String path : recentPaths) {\r
  52             IMemento m = sm.createChild(TAG_PATH);\r
  53             m.putString(ATTR_NAME, path);\r
  54         }\r
  55         return sm.toString();\r
  56     }\r
  57 \r
  58     public static <T> void removeDuplicates(Iterable<String> iter) {\r
  59         // Remove duplicates\r
  60         Set<String> dups = new TreeSet<String>(String.CASE_INSENSITIVE_ORDER);\r
  61         for (Iterator<String> it = iter.iterator(); it.hasNext();) {\r
  62             String path = it.next();\r
  63             if (!dups.add(path)) {\r
  64                 it.remove();\r
  65             }\r
  66         }\r
  67     }\r
  68 \r
  69 }\r