Java tutorial
/** * This file is part of Archiv-Editor. * * The software Archiv-Editor serves as a client user interface for working with * the Person Data Repository. See: pdr.bbaw.de * * The software Archiv-Editor was developed at the Berlin-Brandenburg Academy * of Sciences and Humanities, Jgerstr. 22/23, D-10117 Berlin. * www.bbaw.de * * Copyright (C) 2010-2013 Berlin-Brandenburg Academy * of Sciences and Humanities * * The software Archiv-Editor was developed by @author: Christoph Plutte. * * Archiv-Editor is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Archiv-Editor is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with Archiv-Editor. * If not, see <http://www.gnu.org/licenses/lgpl-3.0.html>. */ package org.bbaw.pdr.ae.view.main.commands; import java.util.Vector; import org.bbaw.pdr.ae.common.NLMessages; import org.bbaw.pdr.ae.control.core.UserRichtsChecker; import org.bbaw.pdr.ae.control.facade.Facade; import org.bbaw.pdr.ae.control.interfaces.IDBManager; import org.bbaw.pdr.ae.model.Aspect; import org.bbaw.pdr.ae.model.Person; import org.bbaw.pdr.ae.model.RelationStm; import org.bbaw.pdr.ae.model.SemanticStm; import org.bbaw.pdr.ae.view.control.PDRObjectsProvider; import org.eclipse.core.commands.AbstractHandler; import org.eclipse.core.commands.ExecutionEvent; import org.eclipse.core.commands.ExecutionException; import org.eclipse.core.commands.IHandler; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.ui.PlatformUI; /** * @author cplutte . */ public class DeletePersonHandler extends AbstractHandler implements IHandler { /** _facade singleton instance. */ private Facade _facade = Facade.getInstanz(); /** * execute method. * @param event to be executed. * @throws ExecutionException ee. * @return null. */ @Override public final Object execute(final ExecutionEvent event) throws ExecutionException { if (_facade.getCurrentPerson() != null) { if (new UserRichtsChecker().mayDelete(_facade.getCurrentPerson())) { Person p = _facade.getCurrentPerson(); Vector<Aspect> belongingToAspects = new Vector<Aspect>(); boolean toOtherPerson = false; PDRObjectsProvider oProvider = new PDRObjectsProvider(); oProvider.setInput(p); for (Aspect a : oProvider.getAspects()) { toOtherPerson = false; if (a != null && a.getRelationDim() != null && a.getRelationDim().getRelationStms() != null) { for (RelationStm rStm : a.getRelationDim().getRelationStms()) { if (rStm.getRelations() != null && (!rStm.getSubject().equals(a.getPdrId()) && !rStm.getRelations().firstElement().getObject().equals(p.getPdrId()))) { toOtherPerson = true; break; } } if (!toOtherPerson) { belongingToAspects.add(a); } } } String message = NLMessages.getString("DeletePersonHandler_warning0"); message += "\n"; message += belongingToAspects.size() + " Aspects belong only to this person." + "\nDo you really want to delete this person and all aspects that belong only to this person?"; message += NLMessages.getString("DeletePersonHandler_warning2") + p.getDisplayName(); message += NLMessages.getString("DeletePersonHandler_lb_id") + p.getPdrId().toString(); MessageDialog messageDialog = new MessageDialog( PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), NLMessages.getString("DeletePersonHandler_title"), null, message, MessageDialog.WARNING, new String[] { NLMessages.getString("DeletePersonHandler_delete_person_allaspects"), NLMessages.getString("DeletePersonHandler_delete_only_person"), NLMessages.getString("Handler_cancel") }, 2); int returnCode = messageDialog.open(); if (returnCode == 0) { IDBManager dbm = _facade.getDBManager(); for (Aspect a : belongingToAspects) { try { dbm.delete(a.getPdrId(), "aspect"); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } _facade.deleteAspectFromLoadedAspects(a); } try { dbm.delete(p.getPdrId(), "person"); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } //$NON-NLS-1$ //$NON-NLS-2$ _facade.deletePersonFromAllPersons(p); } else if (returnCode == 1) { IDBManager dbm = _facade.getDBManager(); // find and delete all aspects that contain the person's // name. for (Aspect a : belongingToAspects) { if (a != null && a.getSemanticDim() != null && a.getSemanticDim().getSemanticStms() != null) { for (SemanticStm sStm : a.getSemanticDim().getSemanticStms()) { if (_facade.isPersonNameTag(sStm.getLabel())) { try { dbm.delete(a.getPdrId(), "aspect"); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } _facade.deleteAspectFromLoadedAspects(a); break; } } } } try { dbm.delete(p.getPdrId(), "person"); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } //$NON-NLS-1$ //$NON-NLS-2$ _facade.deletePersonFromAllPersons(p); } } else { MessageDialog.openInformation(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), NLMessages.getString("Commands_no_rights_delete"), NLMessages.getString("Command_no_rights_delete_person_message")); //$NON-NLS-1$ } } return null; } }