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/**
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* Copyright (C) 2007 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.store;
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import java.util.UUID;
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import org.eclipse.core.commands.operations.IOperationHistory;
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import org.eclipse.core.commands.operations.IUndoContext;
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import org.eclipse.core.runtime.NullProgressMonitor;
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import org.eclipse.jface.action.IStatusLineManager;
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import org.eclipse.jface.dialogs.MessageDialog;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.widgets.Composite;
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import org.eclipse.swt.widgets.Listener;
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import org.eclipse.swt.widgets.Text;
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import org.eclipse.ui.forms.widgets.ExpandableComposite;
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import org.eclipse.ui.forms.widgets.ScrolledForm;
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import eu.etaxonomy.cdm.api.facade.DerivedUnitFacade;
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import eu.etaxonomy.cdm.api.service.UpdateResult;
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import eu.etaxonomy.cdm.common.CdmUtils;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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import eu.etaxonomy.cdm.model.term.TermNode;
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import eu.etaxonomy.taxeditor.l10n.Messages;
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import eu.etaxonomy.taxeditor.model.AbstractUtility;
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import eu.etaxonomy.taxeditor.model.FeatureNodeContainer;
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import eu.etaxonomy.taxeditor.model.MessagingUtils;
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import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
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import eu.etaxonomy.taxeditor.store.internal.TaxeditorStorePlugin;
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import eu.etaxonomy.taxeditor.ui.element.AbstractFormSection;
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import eu.etaxonomy.taxeditor.view.detail.CdmSectionPart;
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import eu.etaxonomy.taxeditor.workbench.part.IE4SavablePart;
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/**
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 * <p>StoreUtil class.</p>
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 *
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 * @author n.hoffmann
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 * @created 11.05.2009
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 * @version 1.0
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 */
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public class StoreUtil extends AbstractUtility {
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	/**
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	 * <p>checktaxonExists</p>
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	 *
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	 * @param fromString a {@link java.util.UUID} object.
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	 */
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	public static void checktaxonExists(UUID fromString) {
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//        if (CdmStore.getTaxonService().getTaxonByUuid(UUID.fromString(uuid)) == null) {
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//        	logger.warn("Couldn't find taxon with UUID " + uuid);
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//        	return null;
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//        }
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	}
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	/**
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	 * If the object given is already a {@link CdmBase} then it is returned.<br>
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	 * If it is a kind of "container" for CDM objects then it is asked for its "responsible" CdmBase entity.<br>
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	 * Otherwise an exception is thrown.
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	 * @param object the object to test for CdmBase
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	 * @return a CdmBase object
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	 * @throws IllegalArgumentException if the tested object is neither a CdmBase nor a CDM "container"
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	 */
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	public static CdmBase getCdmEntity(Object object){
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        // TODO temporary solution for ticket #4091????
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        if (object == null){
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        	return null;   //not sure if an object should ever be null at this point, but this needs to be handled in calling methods
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        }else if(object instanceof DerivedUnitFacade){
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            return ((DerivedUnitFacade)object).baseUnit();
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        }
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        else if(object instanceof FeatureNodeContainer){
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            return ((FeatureNodeContainer) object).getFeatureNode();
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        }
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        else if(object instanceof CdmBase){
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            return (CdmBase) object;
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        }
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        throw new IllegalArgumentException("Object " + object.toString() + " is neither a CdmBase nor a CDM \"container\"");
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	}
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	/**
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	 * <p>getOperationHistory</p>
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	 *
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	 * @return a {@link org.eclipse.core.commands.operations.IOperationHistory} object.
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	 */
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	public static IOperationHistory getOperationHistory() {
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		return TaxeditorStorePlugin.getDefault().getWorkbench().
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					getOperationSupport().getOperationHistory();
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	}
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	/**
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	 * <p>setStatusLineManager</p>
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	 *
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	 * @param manager a {@link org.eclipse.jface.action.IStatusLineManager} object.
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	 */
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	public static void setStatusLineManager(IStatusLineManager manager) {
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		statusLineManager = manager;
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	}
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	public static void reflowParentScrolledForm(Composite composite, boolean flushCashes){
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        ScrolledForm scrolledForm = null;
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        Composite parent = composite;
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        while(parent!=null && !(parent instanceof ScrolledForm)){
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            parent = parent.getParent();
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        }
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        scrolledForm = (ScrolledForm)parent;
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        if(scrolledForm!=null){
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            scrolledForm.reflow(flushCashes);
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            scrolledForm.redraw();
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        }
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    }
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	/**
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	 * <p>getUndoContext</p>
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	 *
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	 * @return a {@link org.eclipse.core.commands.operations.IUndoContext} object.
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	 */
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	public static IUndoContext getUndoContext(){
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		return IOperationHistory.GLOBAL_UNDO_CONTEXT;
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	}
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	/**
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	 * <p>getPluginId</p>
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	 *
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	 * @return a {@link java.lang.String} object.
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	 */
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	public static String getPluginId(){
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		return TaxeditorStorePlugin.PLUGIN_ID;
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	}
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    /**
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     * Cleans title string for output in section titles<br>
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     * E.g. escapes '&' with "&&" to avoid mnemonic handling (see
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     * Label.setText() documentation)<br>
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     * see also #4302
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     *
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     * @param title
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     *            the title string to clean
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     * @return the cleaned title string
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     */
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	public static String cleanTitleString(String title){
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	    return title.replace("&", "&&");
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	}
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    public static String getPrefKey(Class<? extends AbstractFormSection> sectionClass, String entity) {
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        return sectionClass.getCanonicalName()+";"+entity;
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    }
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    /**
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     * Checks the dirty flag and, if set, prompts the user to optionally save
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     * the editor
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     *
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     * @return <code>false</code> if the editor is not dirty anymore, either
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     *         because it wasn't beforehand or because it has been saved.
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     *         <code>true</code> otherwise
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     */
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    public static boolean promptCheckIsDirty(IE4SavablePart editor){
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        if (editor.isDirty()){
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            boolean proceed = MessageDialog.openQuestion(null,
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                    Messages.DefinedTermEditorE4_SAVE_TITLE, Messages.DefinedTermEditorE4_SAVE_MESSAGE);
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            if (proceed) {
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                editor.save(new NullProgressMonitor());
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                return false;
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            }
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            else{
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                return true;
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            }
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        }
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        else{
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            return false;
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        }
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    }
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    public static boolean confirmDelete(){
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        return MessagingUtils.confirmDialog("Confirm deletion", "Do you really want to delete the selected element(s)?");
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    }
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    /**
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     * Compares the two given input strings considering the given search string.<br>
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     * Strings will be sorted according to <br>
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     * <ol>
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     * <li> result begins with search string
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     * <li> string length
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     * <li> result contains search string
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     * <li> string length
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     * <li> alphabetically
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     * </ol>
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     */
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    public static int compareBySearchString(String searchString, String string1, String string2) {
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        string1 = string1.toLowerCase();
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        string2 = string2.toLowerCase();
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        //1. search string at the beginning
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        if(string1.startsWith(searchString)){
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            if(!string2.startsWith(searchString)){
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                return -1;
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            }
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            else{
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                return string1.compareTo(string2);
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            }
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        }
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        else if(string2.startsWith(searchString)){
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            return 1;
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        }
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        //2. label that contains search string
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        if(string1.contains(searchString)){
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            if(!string2.contains(searchString)){
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                return -1;
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            }
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        }
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        else if(string2.contains(searchString)){
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            return 1;
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        }
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        return string1.compareTo(string2);
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    }
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    public static int getSectionStyle(Class<? extends AbstractFormSection> clazz, String input){
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        return StoreUtil.getSectionStyle(clazz, input, false);
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    }
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    public static int getSectionStyle(Class<? extends AbstractFormSection> clazz, String input, boolean initiallyExpanded){
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        int style = ExpandableComposite.TWISTIE;
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        String prefKey = getPrefKey(clazz, input);
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        if(PreferencesUtil.contains(prefKey)){
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            String string = PreferencesUtil.getStringValue(prefKey);
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            if (string != null){
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                style = string.equals(CdmSectionPart.EXPANDED)?style |= ExpandableComposite.EXPANDED:style;
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            }else{
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                style = initiallyExpanded?style |= ExpandableComposite.EXPANDED:style;
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            }
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        }
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        else{
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            style = initiallyExpanded?style |= ExpandableComposite.EXPANDED:style;
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        }
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        return style;
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    }
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    public static String getPath(TermNode node){
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        String path = node.getTerm().getLabel();
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        TermNode parent = node.getParent();
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        while(parent != null && parent.getTerm()!=null){
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            path = parent.getTerm().getLabel() + "/" + path;
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            parent = parent.getParent();
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        }
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        return path;
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    }
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    public static void setTextWithoutModifyListeners(Text text, String string){
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        Listener[] listeners = text.getListeners(SWT.Modify);
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        for (Listener listener : listeners) {
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            text.removeListener(SWT.Modify, listener);
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        }
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        text.setText(CdmUtils.Nz(string));
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        for (Listener listener : listeners) {
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            text.addListener(SWT.Modify, listener);
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        }
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    }
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    public static Exception mergeUpdateResultExceptions(UpdateResult result) {
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        Exception t = new Exception();
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        if (result.getExceptions().size() >1){
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        	for (Exception e:result.getExceptions()){
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        		t.addSuppressed(e);
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        	}
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        }else {
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        	t = result.getExceptions().iterator().next();
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        }
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        return t;
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    }
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}
(10-10/14)