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/**
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* Copyright (C) 2018 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.editor.view.checklist.e4;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Comparator;
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import java.util.List;
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import java.util.UUID;
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import org.apache.commons.lang3.StringUtils;
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import org.eclipse.nebula.widgets.nattable.edit.editor.IComboBoxDataProvider;
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import eu.etaxonomy.cdm.model.description.PresenceAbsenceTerm;
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import eu.etaxonomy.cdm.model.location.NamedArea;
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import eu.etaxonomy.cdm.model.metadata.CdmPreference;
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import eu.etaxonomy.cdm.model.metadata.CdmPreference.PrefKey;
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import eu.etaxonomy.cdm.model.metadata.PreferencePredicate;
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import eu.etaxonomy.cdm.model.metadata.PreferenceSubject;
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import eu.etaxonomy.cdm.model.metadata.TermOrder;
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import eu.etaxonomy.cdm.model.term.DefinedTermBase;
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import eu.etaxonomy.cdm.model.term.OrderedTermComparator;
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import eu.etaxonomy.cdm.model.term.Representation;
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import eu.etaxonomy.cdm.model.term.TermIdInVocabularyComparator;
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import eu.etaxonomy.cdm.model.term.TermLanguageComparator;
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import eu.etaxonomy.taxeditor.preference.CdmPreferenceCache;
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import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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/**
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 * @author k.luther
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 * @since 05.12.2018
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 *
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 */
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public class StatusComboBoxDataProvider implements IComboBoxDataProvider {
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    private DistributionEditor editor;
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    private int maxVisibleItems;
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    public StatusComboBoxDataProvider(DistributionEditor editor) {
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        super();
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        this.editor = editor;
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    }
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    @Override
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    public List<?> getValues(int columnIndex, int rowIndex) {
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        NamedArea area = editor.getAreaToColumnIndexMap().get(columnIndex);
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        PrefKey key = CdmPreference.NewKey(PreferenceSubject.NewInstance(PreferenceSubject.ROOT+"NamedArea["+area.getUuid().toString() + "]"+PreferenceSubject.ROOT), PreferencePredicate.AvailableDistributionStatus);
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        CdmPreference pref = CdmPreferenceCache.instance().get(key);
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        // if there is no preference for the area, look for the general
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        if (pref == null){
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            pref = CdmPreference.NewTaxEditorInstance(PreferencePredicate.AvailableDistributionStatus, PreferencesUtil.getStringValue(PreferencePredicate.AvailableDistributionStatus.getKey()));
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        }
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//        if (pref == null) {
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//            key = CdmPreference.NewKey(PreferenceSubject.NewTaxEditorInstance(), PreferencePredicate.AvailableDistributionStatus);
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//            //pref = PreferenceResolver.resolve(preferenceCache.get(predicate), CdmPreference.NewKey(PreferenceSubject.NewTaxEditorInstance(), PreferencePredicate.getByKey(predicate)));
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//            pref = CdmPreferenceCache.instance().get(key);
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//            if (pref == null){
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//                pref = CdmPreference.NewTaxEditorInstance(PreferencePredicate.AvailableDistributionStatus, PreferencePredicate.AvailableDistributionStatus.getDefaultValue() != null ? PreferencePredicate.AvailableDistributionStatus.getDefaultValue().toString(): null);
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//            }
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//        }
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        return getValues(pref);
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    }
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    public static List<?> getValues(CdmPreference pref){
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        List<StatusHelper> inputAll = new ArrayList<>();
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        PresenceAbsenceTerm noneTerm = PresenceAbsenceTerm.NewInstance();
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        noneTerm.setTitleCache(" - ", true);
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        noneTerm.addRepresentation(Representation.NewInstance(" - ", " ", " ", CdmStore.getDefaultLanguage()));
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        inputAll.add(new StatusHelper(noneTerm));
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        String statusString = pref.getValue();
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        List<PresenceAbsenceTerm> inputList;
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        if (!StringUtils.isBlank(statusString)){
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            String [] statusArray = statusString.split(";");
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            List<UUID> uuidList = new ArrayList();
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            for (String status: statusArray){
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                uuidList.add(UUID.fromString(status));
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            }
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            inputList = CdmStore.getTermManager().getTerms(uuidList, PresenceAbsenceTerm.class);
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        }else{
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            inputList = CdmStore.getTermManager().getPreferredTerms(PresenceAbsenceTerm.class);
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        }
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        Comparator<DefinedTermBase> comp = new OrderedTermComparator<>();
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        //check the status order preference
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        TermOrder order = TermOrder.valueOf(PreferencesUtil.getStringValue(PreferencePredicate.StatusSortedInDistributionEditor.getKey()));
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        if (order.equals(TermOrder.IdInVoc)){
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            comp = new TermIdInVocabularyComparator();
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        }else if(order.equals(TermOrder.Label)){
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            comp = new TermLanguageComparator();
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        }
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        Collections.sort(inputList, comp);
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//        Collections.sort(inputList, Collections.reverseOrder());
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        int index = 1;
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        for (PresenceAbsenceTerm term: inputList){
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            inputAll.add(index, new StatusHelper(term));
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            index++;
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        }
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       // inputAll.addAll(1, inputList);
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        return inputAll;
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    }
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    public int getMaxVisibleItems(){
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        return maxVisibleItems;
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    }
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}
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