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/**
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* Copyright (C) 2016 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.ui.dialog.selection;
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import java.text.Collator;
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import java.util.Comparator;
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import org.eclipse.jface.viewers.ILabelProvider;
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import org.eclipse.jface.viewers.LabelProvider;
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import org.eclipse.swt.widgets.Control;
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import org.eclipse.swt.widgets.Shell;
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import org.eclipse.swt.widgets.Text;
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import eu.etaxonomy.cdm.api.conversation.ConversationHolder;
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import eu.etaxonomy.cdm.api.service.IAgentService;
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import eu.etaxonomy.cdm.model.agent.AgentBase;
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import eu.etaxonomy.cdm.model.agent.TeamOrPersonBase;
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import eu.etaxonomy.cdm.persistence.dto.UuidAndTitleCache;
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import eu.etaxonomy.taxeditor.newWizard.AbstractNewEntityWizard;
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import eu.etaxonomy.taxeditor.newWizard.NewPersonWizard;
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import eu.etaxonomy.taxeditor.newWizard.NewTeamWizard;
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import eu.etaxonomy.taxeditor.preference.IPreferenceKeys;
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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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 * @date 25.05.2016
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 *
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 */
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public class NomenclaturalAuthorSelectionDialog extends AgentSelectionDialog {
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    /**
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     * @param shell
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     * @param conversation
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     * @param title
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     * @param multi
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     * @param settings
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     * @param agent
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     */
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    protected NomenclaturalAuthorSelectionDialog(Shell shell, ConversationHolder conversation, String title,
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            boolean multi, String settings, AgentBase agent, boolean teamMemberSelection) {
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        super(shell, conversation, title, multi, settings, agent, teamMemberSelection);
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        // TODO Auto-generated constructor stub
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    }
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    @Override
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    protected void initModel() {
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        Control control = getPatternControl();
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        String pattern = null;
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        if (control != null){
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            pattern = ((Text)control).getText();
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        }
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        if (pattern == null || pattern.equals("?")){
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            model = CdmStore.getService(IAgentService.class).getUuidAndAbbrevTitleCache(null, null, null);
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        }else{
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            model = CdmStore.getService(IAgentService.class).getUuidAndAbbrevTitleCache(limitOfInitialElements, pattern, null);
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        }
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    }
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    /** {@inheritDoc} */
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    @Override
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    protected AbstractNewEntityWizard getNewEntityWizard(String parameter) {
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        if(TEAM.equals(parameter)){
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            return new NewTeamWizard(true);
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        }
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        else if(PERSON.equals(parameter)){
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            return new NewPersonWizard();
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        }
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        else{
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            throw new IllegalArgumentException("Could not determine the desired wizard.");
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        }
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    }
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    /**
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	 *
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	 * @return
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	 */
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    @Override
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	protected ILabelProvider createListLabelProvider() {
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		return new FilteredCdmResourceAbbrevLabelProvider();
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	}
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    /**
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     * <p>select</p>
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     *
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     * @param shell a {@link org.eclipse.swt.widgets.Shell} object.
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     * @param conversation a {@link eu.etaxonomy.cdm.api.conversation.ConversationHolder} object.
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     * @param entity a {@link eu.etaxonomy.cdm.model.agent.AgentBase} object.
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     * @return a {@link eu.etaxonomy.cdm.model.agent.AgentBase} object.
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     */
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    public static AgentBase select(Shell shell, ConversationHolder conversation, AgentBase entity, boolean teamMemberSelection) {
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        NomenclaturalAuthorSelectionDialog dialog = new NomenclaturalAuthorSelectionDialog(shell, conversation,
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                "Choose Agent", false, NomenclaturalAuthorSelectionDialog.class.getCanonicalName(), entity, teamMemberSelection);
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        return getSelectionFromDialog(dialog);
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    }
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    /**
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     * <p>getTitle</p>
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     *
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     * @param cdmObject a T object.
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     * @return a {@link java.lang.String} object.
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     */
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    @Override
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    protected String getTitle(AgentBase cdmObject) {
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        if(cdmObject == null){
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            return "";
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        }
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        if (cdmObject instanceof TeamOrPersonBase) {
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            return ((TeamOrPersonBase) cdmObject).getNomenclaturalTitle();
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        } else if (cdmObject instanceof AgentBase){
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            return ((TeamOrPersonBase) cdmObject).getTitleCache();
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        }
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        throw new IllegalArgumentException("Generic method only" +
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                " supports cdmObject of type IIdentifiableEntity." +
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                " Please implement specific method in subclass.");
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    }
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    public class FilteredCdmResourceAbbrevLabelProvider extends LabelProvider {
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		@Override
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		public String getText(Object element) {
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			if (element == null) {
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				return null;
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			}
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			UuidAndTitleCache uuidAndTitleCache = (UuidAndTitleCache) element;
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			String titleCache = uuidAndTitleCache.getTitleCache();
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			String abbrevTitleCache = uuidAndTitleCache.getAbbrevTitleCache();
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			if (!titleCache.equals(abbrevTitleCache)){
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				abbrevTitleCache += " - " + titleCache;
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			}
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			if(PreferencesUtil.getPreferenceStore().getBoolean(IPreferenceKeys.SHOW_ID_IN_ENTITY_SELECTION_DIAOLOG)){
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				abbrevTitleCache += " ["+uuidAndTitleCache.getId()+"]";
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			}
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            return abbrevTitleCache;
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		}
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	};
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	/** {@inheritDoc} */
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	@Override
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	protected ItemsFilter createFilter() {
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		return new ItemsFilter() {
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			/**
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			 * Always returns false to enforce refiltering even if the pattern is equal
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			 */
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			@Override
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			public boolean equalsFilter(ItemsFilter filter) {
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				return false;
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			}
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			@Override
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			public boolean isConsistentItem(Object item) {
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				return false;
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			}
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			@Override
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			public boolean matchItem(Object item) {
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				String textTitleCache = null;
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				String abbrevTitleCache = null;
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				if(item instanceof UuidAndTitleCache){
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					if (((UuidAndTitleCache) item).getAbbrevTitleCache() != null){
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						abbrevTitleCache = ((UuidAndTitleCache) item).getAbbrevTitleCache();
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					}
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					if (((UuidAndTitleCache) item).getTitleCache() != null ){
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						textTitleCache = ((UuidAndTitleCache) item).getTitleCache();
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					}
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				}else if(item instanceof String){
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					textTitleCache = (String) item;
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				}
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				return  (matches(textTitleCache) || matches(abbrevTitleCache)) ;
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			}
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		};
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	}
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	@Override
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	protected Comparator getItemsComparator() {
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		return new Comparator<UuidAndTitleCache>() {
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			@Override
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			public int compare(UuidAndTitleCache entity1,
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					UuidAndTitleCache entity2) {
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			    if (entity1.getUuid().equals(entity2.getUuid())){
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			        return 0;
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			    }
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				Collator collator = Collator.getInstance();
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				String compareString1 = "";
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				if (entity1.getAbbrevTitleCache() != null){
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					compareString1 = entity1.getAbbrevTitleCache();
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				}
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				if (entity1.getTitleCache() != null){
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					compareString1 += entity1.getTitleCache();
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				}
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				String compareString2 = "";
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				if (entity2.getAbbrevTitleCache() != null){
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					compareString2 = entity2.getAbbrevTitleCache();
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				}
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				if (entity2.getTitleCache() != null){
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					compareString2 += entity2.getTitleCache();
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				}
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				int result =collator.compare(compareString1, compareString2);
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				if (result == 0){
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				    result = entity1.getUuid().compareTo(entity2.getUuid());
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				}
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				return result;
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			}
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		};
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	}
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}
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