Java tutorial
/* Copyright (C) 2010 Steffen Dienst This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ package de.elatexam.editor.pages.taskdef; import org.apache.wicket.ajax.AjaxRequestTarget; import org.apache.wicket.ajax.markup.html.AjaxLink; import org.apache.wicket.extensions.ajax.markup.html.modal.ModalWindow; import org.apache.wicket.model.IModel; import com.google.common.collect.ImmutableMap; import de.elatexam.editor.TaskEditorSession; import de.elatexam.editor.components.panels.tree.ComplexTaskDefTree; import de.elatexam.editor.user.BasicUser; import de.elatexam.editor.util.Stuff; import de.elatexam.model.Category; import de.elatexam.model.ClozeSubTaskDef; import de.elatexam.model.ClozeTaskBlock; import de.elatexam.model.ClozeTaskBlock.ClozeConfig; import de.elatexam.model.ComplexTaskDef; import de.elatexam.model.ComplexTaskDef.Config; import de.elatexam.model.ComplexTaskDef.Config.CorrectionMode; import de.elatexam.model.ComplexTaskDef.Config.CorrectionMode.Regular; import de.elatexam.model.Indexed; import de.elatexam.model.MappingSubTaskDef; import de.elatexam.model.MappingTaskBlock; import de.elatexam.model.MappingTaskBlock.MappingConfig; import de.elatexam.model.McSubTaskDef; import de.elatexam.model.McTaskBlock; import de.elatexam.model.McTaskBlock.McConfig; import de.elatexam.model.PaintSubTaskDef; import de.elatexam.model.PaintTaskBlock; import de.elatexam.model.SubTaskDef; import de.elatexam.model.TaskBlock; import de.elatexam.model.TaskblockConfig; import de.elatexam.model.TextSubTaskDef; import de.elatexam.model.TextTaskBlock; import de.elatexam.model.manual.HomogeneousTaskBlock; /** * @author Steffen Dienst * */ public class AddElementLink extends AjaxLink<Indexed> { final static ImmutableMap<Class<?>, Integer> childMap = new ImmutableMap.Builder<Class<?>, Integer>() .put(BasicUser.class, 0).put(ComplexTaskDef.class, 1).put(Category.class, 2).put(McTaskBlock.class, 3) .put(MappingTaskBlock.class, 4).put(ClozeTaskBlock.class, 5).put(TextTaskBlock.class, 6) .put(PaintTaskBlock.class, 7).build(); private ComplexTaskDefTree<Indexed> tree; private ModalWindow selectTaskBlockModal; private TaskSelectorModalWindow selectTaskModal; public AddElementLink(String id, ModalWindow selectTaskBlockModal, TaskSelectorModalWindow selectTaskModal, ComplexTaskDefTree<Indexed> tree) { super(id); this.tree = tree; this.selectTaskBlockModal = selectTaskBlockModal; this.selectTaskModal = selectTaskModal; } @Override public void onClick(AjaxRequestTarget target) { IModel<Indexed> selectedModel = tree.getSelected(); Indexed selectedObject = null; // nothing selected --> use root element if (selectedModel == null) { selectedObject = TaskEditorSession.get().getUser(); } else { selectedObject = selectedModel.getObject(); } Object newObj = null; switch (childMap.get(selectedObject.getClass())) { case 0: // create a new complextaskdef ComplexTaskDef newtaskdef = new ComplexTaskDef(); newtaskdef.setTitle("<Neue Prfung>"); Config config = new Config(); config.setCorrectionMode(new CorrectionMode()); config.getCorrectionMode().setRegular(new Regular()); newtaskdef.setConfig(config); ((BasicUser) selectedObject).getTaskdefs().add(newtaskdef); newObj = newtaskdef; break; case 1: // create a new category Category cat = new Category(); cat.setTitle("<Neue Kategorie>"); cat.setId(Long.toString(System.nanoTime())); ((ComplexTaskDef) selectedObject).getCategory().add(cat); newObj = cat; break; case 2: // show taskblock selection modal window selectTaskBlockModal.show(target); break; case 3: case 4: case 5: case 6: case 7: selectTaskModal.showFor((Class<? extends SubTaskDef>) selectedObject.getClass(), target); break; default: break; } Stuff.saveAll(newObj, selectedObject); } /** * Create a new instance of the given taskblock type. Configure child * objects. * * @param taskblockclass */ public void createTaskblock(Class<? extends TaskBlock> taskblockclass) { Object selectedObject = tree.getSelected().getObject(); if (selectedObject instanceof Category) { try { TaskBlock taskblock = taskblockclass.newInstance(); taskblock.setConfig(new TaskblockConfig()); ((Category) selectedObject).getTaskBlocks().add((HomogeneousTaskBlock) taskblock); // set subclass specific config switch (childMap.get(taskblockclass)) { case 3: ((McTaskBlock) taskblock).setMcConfig(new McConfig(new McConfig.Regular(), null)); break; case 4: ((MappingTaskBlock) taskblock).setMappingConfig(new MappingConfig()); break; case 5: ((ClozeTaskBlock) taskblock).setClozeConfig(new ClozeConfig()); break; default: break; } Stuff.saveAll(selectedObject); } catch (InstantiationException e) { e.printStackTrace(); } catch (IllegalAccessException e) { e.printStackTrace(); } } } /** * Add all {@link SubTaskDef}s to an appropriate subtype of * {@link TaskBlock}. * * @param subtaskdef */ public void addTasks(SubTaskDef... subtaskdefs) { Object o = tree.getSelected().getObject(); if (o instanceof TaskBlock) { for (SubTaskDef std : subtaskdefs) { switch (childMap.get(o.getClass())) { case 3: ((McTaskBlock) o).getMcSubTaskDef().add((McSubTaskDef) std); break; case 4: ((MappingTaskBlock) o).getMappingSubTaskDef().add((MappingSubTaskDef) std); break; case 5: ((ClozeTaskBlock) o).getClozeSubTaskDef().add((ClozeSubTaskDef) std); break; case 6: ((TextTaskBlock) o).getTextSubTaskDef().add((TextSubTaskDef) std); break; case 7: ((PaintTaskBlock) o).getPaintSubTaskDef().add((PaintSubTaskDef) std); break; default: throw new RuntimeException( "Unknown taskblock type, can't add subtaskdef of type " + std.getClass()); } } Stuff.saveAll(o); } } }