plugins/org.eclipse.bpmn2.modeler.ui/src/org/eclipse/bpmn2/modeler/ui/adapters/properties/PropertyPropertiesAdapter.java

/*******************************************************************************
 * Copyright (c) 2011, 2012 Red Hat, Inc.
 *  All rights reserved.
 * This program is made available under the terms of the
 * Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * Red Hat, Inc. - initial API and implementation
 *
 * @author Bob Brodt
 ******************************************************************************/

package org.eclipse.bpmn2.modeler.ui.adapters.properties;

import java.util.List;

import org.eclipse.bpmn2.Activity;
import org.eclipse.bpmn2.Bpmn2Factory;
import org.eclipse.bpmn2.Bpmn2Package;
import org.eclipse.bpmn2.CatchEvent;
import org.eclipse.bpmn2.Definitions;
import org.eclipse.bpmn2.Event;
import org.eclipse.bpmn2.Participant;
import org.eclipse.bpmn2.Process;
import org.eclipse.bpmn2.Property;
import org.eclipse.bpmn2.Task;
import org.eclipse.bpmn2.ThrowEvent;
import org.eclipse.bpmn2.modeler.core.adapters.ExtendedPropertiesProvider;
import org.eclipse.bpmn2.modeler.core.adapters.FeatureDescriptor;
import org.eclipse.bpmn2.modeler.core.adapters.ObjectDescriptor;
import org.eclipse.bpmn2.modeler.core.utils.ModelUtil;
import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.util.EcoreEList;

/**
 * @author Bob Brodt
 *
 */
public class PropertyPropertiesAdapter extends ItemAwareElementPropertiesAdapter<Property> {

	/**
	 * @param adapterFactory
	 * @param object
	 */
	public PropertyPropertiesAdapter(AdapterFactory adapterFactory, Property object) {
		super(adapterFactory, object);

    	EStructuralFeature feature = Bpmn2Package.eINSTANCE.getProperty_Name();
		final FeatureDescriptor<Property> fd = new FeatureDescriptor<Property>(this,object,feature) {

			@Override
			public void setTextValue(String text) {
				int i = text.lastIndexOf("/"); //$NON-NLS-1$
				if (i>=0)
					text = text.substring(i+1);
				text = text.trim();
				((Property)object).setName(text);
			}

			@Override
			public String getChoiceString(Object context) {
				Property property = adopt(context);
				String text = property.getName();
				if (text==null || text.isEmpty())
					text = property.getId();
				
				EObject container = property.eContainer();
				while (container!=null && !(container instanceof Definitions)) {
					if (container instanceof Participant) {
						container = ((Participant)container).getProcessRef();
						if (container==null)
							break;
					}
					else if (container instanceof Activity || container instanceof Process) {
						text = ExtendedPropertiesProvider.getTextValue(container) + "/" + text; //$NON-NLS-1$
					}
					else if (container instanceof CatchEvent || container instanceof ThrowEvent) {
						text = ExtendedPropertiesProvider.getTextValue(container) + "/" + text; //$NON-NLS-1$
					}
					container = container.eContainer();
				}
				return text;
			}
			
		};
		setFeatureDescriptor(feature, fd);
		
		setObjectDescriptor(new ObjectDescriptor<Property>(this,object) {

			@Override
			public void setTextValue(String text) {
				fd.setTextValue(text);
				ModelUtil.setID(object);
			}

			@Override
			public String getTextValue() {
				return fd.getChoiceString(object);
			}
			
			@Override
			public String getLabel() {
				return Messages.PropertyPropertiesAdapter_Property_Label;
			}
		});
	}

	public static Property createProperty(List<Property> properties) {
		String base = Messages.PropertyPropertiesAdapter_LocalVar_Prefix;
		
		Resource resource = null;
		if (properties instanceof EcoreEList) {
			EObject owner = ((EcoreEList)properties).getEObject();
			resource = owner.eResource();
			if (owner instanceof Event) {
				base = Messages.PropertyPropertiesAdapter_EventVar_Prefix;
			}
			else if (owner instanceof Process) {
				base = Messages.PropertyPropertiesAdapter_ProcessVar_Prefix;
			}
			else if (owner instanceof Task) {
				base = Messages.PropertyPropertiesAdapter_TaskVar_Prefix;
			}
		}
		
		int suffix = 1;
		String name = base + suffix;
		for (;;) {
			boolean found = false;
			for (Property p : properties) {
				if (name.equals(p.getName()) || name.equals(p.getId())) {
					found = true;
					break;
				}
			}
			if (!found)
				break;
			name = base + ++suffix;
		}
		
		Property prop  = Bpmn2Factory.eINSTANCE.createProperty();
		ModelUtil.setID(prop, resource);
		prop.setName(name);
		properties.add(prop);
		
		return prop;
	}
}