plugins/org.eclipse.app4mc.amalthea.model.editor.contribution/src/org/eclipse/app4mc/amalthea/model/editor/contribution/registry/ProcessingServiceRegistry.java

/*********************************************************************************
 * Copyright (c) 2021 Robert Bosch GmbH and others.
 *
 * This program and the accompanying materials are made
 * available under the terms of the Eclipse Public License 2.0
 * which is available at https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     Robert Bosch GmbH - initial API and implementation
 ********************************************************************************
 */

package org.eclipse.app4mc.amalthea.model.editor.contribution.registry;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Map;

import org.eclipse.app4mc.amalthea.model.editor.contribution.service.ProcessingService;
import org.eclipse.emf.ecore.EObject;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;
import org.osgi.service.component.annotations.ReferenceCardinality;
import org.osgi.service.component.annotations.ReferencePolicy;
import org.osgi.service.component.annotations.ReferencePolicyOption;

@Component(service = ProcessingServiceRegistry.class)
public class ProcessingServiceRegistry extends ModelServiceRegistry<ProcessingService> {

	@Reference(
			cardinality = ReferenceCardinality.MULTIPLE,
			policy = ReferencePolicy.DYNAMIC,
			policyOption = ReferencePolicyOption.GREEDY)
	void bindCreationService(ProcessingService processingService, Map<String, Object> properties) {
		super.bindService(processingService, properties);
	}

	void unbindCreationService(ProcessingService processingService, Map<String, Object> properties) {
		super.unbindService(processingService, properties);
	}

	public List<RegistryServiceWrapper<ProcessingService>> getServices(Object selected) {
		if (selected == null) return Collections.emptyList();

		// defaults
		List<Class<?>> interfaces = Collections.singletonList(selected.getClass());

		// in case of EObject:
		//  - replace selected object class with its interfaces
		if (selected instanceof EObject) {
			Class<? extends Object> class1 = selected.getClass();
			interfaces = Arrays.asList(class1.getInterfaces());
		}

		return getServices(interfaces);
	}

}