eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/ui/section/description/NaturalLanguageDetailElement.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.ui.section.description;
  12
  13 import java.util.List;
  14
  15 import org.apache.log4j.Logger;
  16 import org.eclipse.core.runtime.IProgressMonitor;
  17 import org.eclipse.core.runtime.IStatus;
  18 import org.eclipse.core.runtime.Status;
  19 import org.eclipse.core.runtime.jobs.Job;
  20 import org.eclipse.swt.widgets.Display;
  21
  22 import eu.etaxonomy.cdm.api.service.NaturalLanguageGenerator;
  23 import eu.etaxonomy.cdm.model.description.FeatureTree;
  24 import eu.etaxonomy.cdm.model.description.TaxonDescription;
  25 import eu.etaxonomy.cdm.model.description.TextData;
  26 import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
  27 import eu.etaxonomy.taxeditor.store.CdmStore;
  28 import eu.etaxonomy.taxeditor.store.StoreUtil;
  29 import eu.etaxonomy.taxeditor.ui.element.CdmFormFactory;
  30 import eu.etaxonomy.taxeditor.ui.element.LabelElement;
  31 import eu.etaxonomy.taxeditor.ui.section.AbstractCdmDetailElement;
  32 import eu.etaxonomy.taxeditor.ui.section.campanula.compatibility.ICdmFormElement;
  33
  34 /**
  35  * <p>NaturalLanguageDetailElement class.</p>
  36  *
  37  * @author n.hoffmann
  38  * @created Sep 16, 2010
  39  * @version 1.0
  40  */
  41 public class NaturalLanguageDetailElement extends AbstractCdmDetailElement<TaxonDescription> {
  42
  43
  44         private static final Logger logger = Logger
  45                         .getLogger(NaturalLanguageDetailElement.class);
  46         private LabelElement label;
  47
  48         /**
  49          * <p>Constructor for NaturalLanguageDetailElement.</p>
  50          *
  51          * @param formFactory a {@link eu.etaxonomy.taxeditor.ui.element.CdmFormFactory} object.
  52          * @param formElement a {@link eu.etaxonomy.taxeditor.ui.element.ICdmFormElement} object.
  53          */
  54         public NaturalLanguageDetailElement(CdmFormFactory formFactory,
  55                         ICdmFormElement formElement) {
  56                 super(formFactory, formElement);
  57         }
  58
  59         /** {@inheritDoc} */
  60         @Override
  61         protected void createControls(ICdmFormElement formElement,
  62                         TaxonDescription entity, int style) {
  63                 label = formFactory.createLabel(formElement, "Generating Natural Language Description ...");
  64
  65                 if(entity.hasStructuredData()){
  66                         FetchNaturalLanguageDescriptionJob job = new FetchNaturalLanguageDescriptionJob("Retrieving Natural Language Description", entity);
  67                         job.schedule();
  68                 }else{
  69                         label.setText("Taxon Description does not contain structured data.");
  70                 }
  71         }
  72
  73         /* (non-Javadoc)
  74          * @see eu.etaxonomy.taxeditor.section.AbstractCdmDetailElement#handleEvent(java.lang.Object)
  75          */
  76         /** {@inheritDoc} */
  77         @Override
  78         public void handleEvent(Object eventSource) {
  79                 // nothing gets edited, nothing gets updated
  80         }
  81
  82         private class FetchNaturalLanguageDescriptionJob extends Job {
  83
  84                 private TaxonDescription entity;
  85                 private NaturalLanguageGenerator generator = new NaturalLanguageGenerator();
  86                 private FeatureTree featureTree = PreferencesUtil.getDefaultFeatureTreeForStructuredDescription();
  87                 private Display display = Display.getCurrent();
  88
  89                 public FetchNaturalLanguageDescriptionJob(String jobName, TaxonDescription entity){
  90                         super(jobName);
  91                         this.entity = entity;
  92                 }
  93
  94                 @Override
  95                 protected IStatus run(IProgressMonitor monitor) {
  96                         String text = "";
  97
  98                         if(featureTree != null){
  99                                 CdmStore.createConversation();
 100                                 try{
 101                                         List<TextData> naturalLanguageDescription = generator.generateNaturalLanguageDescription(featureTree, entity, CdmStore.getDefaultLanguage());
 102
 103                                         for(TextData element : naturalLanguageDescription){
 104                                                 text += element.getText(CdmStore.getDefaultLanguage()) + " ";
 105                                         }
 106                                 }catch(Exception e){
 107                                         logger.error(e);
 108                                 }
 109                         }
 110                         else{
 111                                 text = "Could not generate natural language description, because no Feature Tree was set.";
 112                         }
 113
 114                         final String aggregatedText = text;
 115
 116                         display.asyncExec(new Runnable(){
 117
 118                                 @Override
 119                                 public void run() {
 120                                         label.setText(aggregatedText);
 121                                         StoreUtil.reflowDetailsViewer();
 122                                 }
 123
 124                         });
 125
 126                         return Status.OK_STATUS;
 127                 }
 128
 129         }
 130 }