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package eu.etaxonomy.taxeditor.handler.defaultHandler.e4;
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import java.util.UUID;
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import javax.inject.Named;
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import org.eclipse.e4.core.di.annotations.CanExecute;
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import org.eclipse.e4.core.di.annotations.Execute;
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import org.eclipse.e4.ui.model.application.ui.menu.MHandledMenuItem;
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import org.eclipse.e4.ui.services.IServiceConstants;
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import org.eclipse.swt.widgets.Shell;
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public abstract class DefaultOpenHandlerBaseE4 <T> {
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@Execute
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public void execute(@Named(IServiceConstants.ACTIVE_SHELL)Shell shell, MHandledMenuItem menuItem) {
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String commandId = menuItem.getCommand().getElementId();
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Object transientData = menuItem.getTransientData().get(commandId+".uuid");
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if(transientData instanceof UUID){
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T entity = getEntity((UUID) transientData);
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open(entity, shell);
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}
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}
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@CanExecute
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public boolean canExecute(MHandledMenuItem menuItem) {
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boolean canExecute = false;
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String commandId = menuItem.getCommand().getElementId();
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Object transientData = menuItem.getTransientData().get(commandId+".uuid");
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if(transientData instanceof UUID){
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T entity = getEntity((UUID) transientData);
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canExecute = canExecute(entity);
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}
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menuItem.setVisible(canExecute);
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return canExecute;
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}
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protected abstract T getEntity(UUID uuid);
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protected abstract void open(T entity, Shell shell);
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protected abstract boolean canExecute(T entity);
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}
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