old/org.eclipse.emf.ecp.validation/src/org/eclipse/emf/ecp/validation/providers/ValidationContentProvider.java

/*******************************************************************************
 * Copyright (c) 2008-2011 Chair for Applied Software Engineering,
 * Technische Universitaet Muenchen.
 * All rights reserved. This program and the accompanying materials
 * are 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: Max Hohenegger (Bug 377894)
 ******************************************************************************/
package org.eclipse.emf.ecp.validation.providers;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.core.runtime.IStatus;
import org.eclipse.emf.common.util.BasicDiagnostic;
import org.eclipse.emf.edit.provider.ComposedAdapterFactory;
import org.eclipse.emf.edit.ui.provider.AdapterFactoryContentProvider;

/**
 * Content Provider for validation view.
 * 
 * @author Carmen Carlan
 * 
 */
public class ValidationContentProvider extends AdapterFactoryContentProvider {

	/**
	 * Default constructor.
	 */
	public ValidationContentProvider() {
		super(new ComposedAdapterFactory(ComposedAdapterFactory.Descriptor.Registry.INSTANCE));
	}

	/*
	 * (non-Javadoc)
	 * @see
	 * org.eclipse.emf.edit.ui.provider.AdapterFactoryContentProvider#getElements
	 * (java.lang.Object)
	 */
	@Override
	public Object[] getElements(Object inputElement) {
		// if a project is deleted while the ValidationView is open the inputElement is an empty List
		if (!(inputElement instanceof BasicDiagnostic)) {
			return new Object[0];
		}

		IStatus status = BasicDiagnostic.toIStatus((BasicDiagnostic) inputElement);

		List<IStatus> constraints = new ArrayList<IStatus>();
		if (status.isMultiStatus()) {
			IStatus[] statuses = status.getChildren();
			for (int i = 0; i < statuses.length; i++) {
				constraints.add(statuses[i]);

			}
		} else if (!status.isOK()) {

			constraints.add(status);
		}

		return constraints.toArray(new Object[constraints.size()]);
	}

}