taxeditor-editor/src/main/java/eu/etaxonomy/taxeditor/editor/TaxonEditorInputFactory.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10
  11 package eu.etaxonomy.taxeditor.editor;
  12
  13 import java.util.UUID;
  14
  15 import org.apache.log4j.Logger;
  16 import org.eclipse.core.runtime.IAdaptable;
  17 import org.eclipse.ui.IElementFactory;
  18 import org.eclipse.ui.IMemento;
  19
  20 import eu.etaxonomy.taxeditor.store.CdmStore;
  21
  22
  23 /**
  24  * @author p.ciardelli
  25  * @created 23.04.2009
  26  * @version 1.0
  27  */
  28 public class TaxonEditorInputFactory implements IElementFactory {
  29         private static final Logger logger = Logger
  30                         .getLogger(TaxonEditorInputFactory.class);
  31
  32     /**
  33      * Factory id. The workbench plug-in registers a factory by this name
  34      * with the "org.eclipse.ui.elementFactories" extension point.
  35      */
  36     private static final String ID_FACTORY = "eu.etaxonomy.taxeditor.editor.TaxonEditorInputFactory"; //$NON-NLS-1$
  37
  38     /**
  39      * Tag for the IFile.fullPath of the file resource.
  40      */
  41     private static final String TAXON_UUID = "uuid"; //$NON-NLS-1$
  42
  43         /* (non-Javadoc)
  44          * @see org.eclipse.ui.IElementFactory#createElement(org.eclipse.ui.IMemento)
  45          */
  46         public IAdaptable createElement(IMemento memento) {
  47         // Get the uuid
  48         String uuid = memento.getString(TAXON_UUID);
  49         if (uuid == null) {
  50                         return null;
  51                 }
  52         if (CdmStore.getTaxonService().getTaxonByUuid(UUID.fromString(uuid)) == null) {
  53                 logger.warn("Couldn't find taxon with UUID " + uuid);
  54                 return null;
  55         }
  56         logger.info("Creating taxon from memento w UUID " + uuid);
  57         return TaxonEditorInput.NewInstance(UUID.fromString(uuid));
  58         }
  59
  60     /**
  61      * Returns the element factory id for this class.
  62      *
  63      * @return the element factory id
  64      */
  65     public static String getFactoryId() {
  66         return ID_FACTORY;
  67     }
  68
  69     /**
  70      * Saves the state of the given file editor input into the given memento.
  71      *
  72      * @param memento the storage area for element state
  73      * @param input the file editor input
  74      */
  75     public static void saveState(IMemento memento, TaxonEditorInput input) {
  76         String uuid = input.getTaxon().getUuid().toString();
  77         memento.putString(TAXON_UUID, uuid);
  78     }
  79 }