org.eclipse.osbp.ecview.core.common.editparts.emf/src/org/eclipse/osbp/ecview/core/common/editpart/emf/ECViewModelListBindingEndpointEditpart.java

/**
 * Copyright (c) 2011, 2015 - Lunifera GmbH (Gross Enzersdorf, Austria), Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0 
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *         Florian Pirchner - Initial implementation
 */
package org.eclipse.osbp.ecview.core.common.editpart.emf;

import java.util.List;

import org.eclipse.core.databinding.observable.list.IObservableList;
import org.eclipse.emf.databinding.FeaturePath;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.osbp.ecview.core.common.editpart.IECViewModelListBindingEndpointEditpart;
import org.eclipse.osbp.ecview.core.common.editpart.emf.binding.BindableListEndpointEditpart;
import org.eclipse.osbp.ecview.core.common.model.binding.YECViewModelListBindingEndpoint;
import org.eclipse.osbp.ecview.core.databinding.emf.model.ECViewModelBindable;

/**
 * Responsible to create an observable. The model of this editpart is used to
 * access the getObservableValue from the underlying widget presentation.
 */
@SuppressWarnings("restriction")
public class ECViewModelListBindingEndpointEditpart extends
		BindableListEndpointEditpart<YECViewModelListBindingEndpoint> implements
		IECViewModelListBindingEndpointEditpart {

	@SuppressWarnings("unchecked")
	@Override
	public <A extends IObservableList> A getObservable() {
		YECViewModelListBindingEndpoint model = getModel();
		if (model.getFeatures().size() > 0) {
			List<EStructuralFeature> features = model.getFeatures();
			return (A) ECViewModelBindable.observeList(model.getElement(),
					FeaturePath.fromList(features
							.toArray(new EStructuralFeature[features.size()])));
		} else if (model.getPropertyPath() != null
				&& !model.getPropertyPath().equals("")) {
			return (A) ECViewModelBindable.observeList(model.getElement(),
					model.getPropertyPath(), model.getType());
		}

		throw new IllegalArgumentException("Not a valid binding model " + model);
	}

	@Override
	public void setRefreshProvider(RefreshProvider refresh) {
		// nothing to do
	}

}