private void initController()

in modeler/cayenne-modeler/src/main/java/org/apache/cayenne/modeler/dialog/objentity/ObjAttributeInfoDialog.java [120:267]
118 lines of code
25 McCabe index (conditional complexity)

	private void initController(ObjAttribute attr) {

		for (String embeddableName : embeddableNames) {
			((DefaultComboBoxModel<String>) view.getTypeComboBox().getModel()).addElement(embeddableName);
		}
		// need to initialize this early, to react to the later call of the view.getTypeComboBox().setSelectedItem()
		view.getTypeComboBox().addActionListener(e -> {
			boolean isType = false;
			String[] typeNames = ModelerUtil.getRegisteredTypeNames();
			for (String typeName : typeNames) {
				if (view.getTypeComboBox().getSelectedItem() == null ||
						typeName.equals(view.getTypeComboBox().getSelectedItem().toString())) {
					isType = true;
				}
			}

			if (isType || !mediator.getEmbeddableNamesInCurrentDataDomain()
					.contains((String)view.getTypeComboBox().getSelectedItem())) {
				((CardLayout) view.getTypeManagerPane().getLayout()).show(view.getTypeManagerPane(), FLATTENED_PANEL);
			} else {
				((CardLayout) view.getTypeManagerPane().getLayout()).show(view.getTypeManagerPane(), EMBEDDABLE_PANEL);
				view.getCurrentPathLabel().setText("");
			}
		});

		this.attribute = attr;

		if (attribute instanceof EmbeddedAttribute || embeddableNames.contains(attribute.getType())) {
			this.attributeSaved = new EmbeddedAttribute();
		} else {
			this.attributeSaved = new ObjAttribute();
		}

		copyObjAttribute(attributeSaved, attribute);

		relTargets = new ArrayList<>(attribute.getEntity().getDataMap().getDbEntities());

		/*
		 * Register auto-selection of the target
		 */
		view.getPathBrowser().addTreeSelectionListener(this);

		view.getAttributeName().setText(attribute.getName());
		if (attribute.getDbAttributePath() != null) {
			if (attribute.getDbAttributePath().length() > 1) {
				String path = attribute.getDbAttributePath().value();
				view.getCurrentPathLabel().setText(path.replace(".", " -> "));
			} else {
				view.getCurrentPathLabel().setText(attribute.getDbAttributePath().value());
			}
		} else {
			view.getCurrentPathLabel().setText("");
		}
		view.getSourceEntityLabel().setText(attribute.getEntity().getName());
		view.getTypeComboBox().setSelectedItem(attribute.getType());
		view.getUsedForLockingCheckBox().setSelected(attribute.isUsedForLocking());
		view.getLazyCheckBox().setSelected(attribute.isLazy());
		view.getCommentField().setText(ObjectInfo
				.getFromMetaData(mediator.getApplication().getMetaData(),
						attr,
						ObjectInfo.COMMENT));

		BindingBuilder builder = new BindingBuilder(getApplication().getBindingFactory(), this);
		builder.bindToAction(view.getCancelButton(), "closeAction()");
		builder.bindToAction(view.getSelectPathButton(), "setPath(true)");
		builder.bindToAction(view.getSaveButton(), "saveMapping()");

		/*
		 * set filter for ObjAttributePathBrowser
		 */
		if (view.getPathBrowser().getModel() == null) {
			DbEntity firstEntity = null;
			if (attribute.getDbAttribute() == null) {

				if (attribute.getParent() instanceof ObjEntity) {
					DbEntity dbEnt = ((ObjEntity) attribute.getParent()).getDbEntity();

					if (dbEnt != null) {
						Collection<DbAttribute> attrib = dbEnt.getAttributes();
						Collection<DbRelationship> rel = dbEnt.getRelationships();

						if (attrib.size() > 0) {
							Iterator<DbAttribute> iter = attrib.iterator();
							firstEntity = iter.next().getEntity();
						} else if (rel.size() > 0) {
							Iterator<DbRelationship> iter = rel.iterator();
							firstEntity = iter.next().getSourceEntity();
						}
					}
				}
			} else {
				firstEntity = getFirstEntity();
			}

			if (firstEntity != null) {
				EntityTreeModel treeModel = new EntityTreeModel(firstEntity);
				treeModel.setFilter(new EntityTreeAttributeRelationshipFilter());
				view.getPathBrowser().setModel(treeModel);
			}
		}

		if (attribute.getDbAttribute() != null) {
			setSelectionPath();
		}

		view.getTypeComboBox().addItemListener(e -> {
            if (lastObjectType != null) {
                if (!lastObjectType.equals(e.getItemSelectable())) {
                    if (embeddableNames.contains(e.getItemSelectable().getSelectedObjects()[0].toString())) {
						EmbeddedAttribute copyAttrSaved = new EmbeddedAttribute();
						copyObjAttribute(copyAttrSaved, attributeSaved);
						attributeSaved = copyAttrSaved;
                    } else {
                        if (attributeSaved instanceof EmbeddedAttribute) {
                            ObjAttribute copyAttrSaved = new ObjAttribute();
                            copyObjAttribute(copyAttrSaved, attributeSaved);
                            attributeSaved = copyAttrSaved;
                        }
                    }

                    attributeSaved.setType(e.getItemSelectable().getSelectedObjects()[0].toString());
                    rebuildTable();
                    setEnabledSaveButton();
                }
            }
        });

		view.getAttributeName().addKeyListener(new KeyListener() {

			public void keyPressed(KeyEvent e) {
				if (!view.getAttributeName().getText().equals(attribute.getName())) {
					setEnabledSaveButton();
				}
			}

			public void keyReleased(KeyEvent e) {
				if (!view.getAttributeName().getText().equals(attribute.getName())) {
					setEnabledSaveButton();
				}
			}

			public void keyTyped(KeyEvent e) {
			}
		});

		rebuildTable();

	}