EDIT

package eu.etaxonomy.taxeditor.editor.view.derivate.handler;

import java.util.ArrayList;

import java.util.Collection;

import java.util.List;

import java.util.UUID;

import org.eclipse.core.commands.ExecutionEvent;

import org.eclipse.e4.ui.model.application.ui.basic.MPart;

import org.eclipse.e4.ui.workbench.modeling.EPartService;

import org.eclipse.e4.ui.workbench.modeling.EPartService.PartState;

import eu.etaxonomy.cdm.api.service.IOccurrenceService;

import eu.etaxonomy.cdm.api.service.ITaxonNodeService;

import eu.etaxonomy.cdm.api.service.config.FindOccurrencesConfigurator;

import eu.etaxonomy.cdm.model.occurrence.SpecimenOrObservationBase;

import eu.etaxonomy.cdm.model.taxon.TaxonNode;

import eu.etaxonomy.taxeditor.editor.AppModelId;

import eu.etaxonomy.taxeditor.editor.l10n.Messages;

import eu.etaxonomy.taxeditor.editor.view.derivate.DerivateView;

import eu.etaxonomy.taxeditor.editor.view.derivate.DerivateViewEditorInput;

import eu.etaxonomy.taxeditor.handler.defaultHandler.DefaultOpenHandlerBase;

import eu.etaxonomy.taxeditor.store.CdmStore;

import eu.etaxonomy.taxeditor.store.internal.TaxeditorStorePlugin;

public class OpenDerivativeEditorForTaxonNode extends DefaultOpenHandlerBase<TaxonNode> {

    protected static final String OPEN_DERIVATIVE_EDITOR_FOR_TAXON_NODE_COULD_NOT_OPEN = Messages.OpenDerivativeEditorForTaxonNode_COULD_NOT_OPEN;

    @Override

    protected TaxonNode getEntity(UUID uuid) {

        return CdmStore.getService(ITaxonNodeService.class).load(uuid);

    }

    @Override

    protected void open(ExecutionEvent event, TaxonNode entity) {

        FindOccurrencesConfigurator config = new FindOccurrencesConfigurator();

        UUID taxonUuid = entity.getTaxon().getUuid();

        config.setAssociatedTaxonUuid(taxonUuid);

        List<SpecimenOrObservationBase> specimens = CdmStore.getService(IOccurrenceService.class).findByTitle(config).getRecords();

        Collection<UUID> specimenUuids = new ArrayList<UUID>();

        for (SpecimenOrObservationBase specimenOrObservationBase : specimens) {

            specimenUuids.add(specimenOrObservationBase.getUuid());

        }

        DerivateViewEditorInput input = new DerivateViewEditorInput(specimenUuids, taxonUuid);

        MPart part = TaxeditorStorePlugin.getDefault().getWorkbench().getActiveWorkbenchWindow().getService(EPartService.class).showPart(

                AppModelId.PARTDESCRIPTOR_EU_ETAXONOMY_TAXEDITOR_EDITOR_VIEW_DERIVATE_DERIVATEVIEW, PartState.ACTIVATE);

        DerivateView derivateView = (DerivateView) part.getObject();

        derivateView.init(input);

    }

}