/*******************************************************************************
* Copyright (c) 2008, 2012 Obeo.
* 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:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.emf.eef.runtime.query.explicitpath;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.eef.runtime.query.EEFQuery;
import org.eclipse.emf.eef.runtime.query.QueryProcessor;
import org.eclipse.emf.eef.runtime.query.QueryResult;
import org.eclipse.emf.eef.runtime.query.QueryWrapper;
/**
* @author <a href="mailto:goulwen.lefur@obeo.fr">Goulwen Le Fur</a>
*/
public class ExplicitPathProcessor implements QueryProcessor {
public static final String EXPLICITPATH_KIND = "explicit path";
/**
* {@inheritDoc}
* @see org.eclipse.emf.eef.runtime.query.QueryProcessor#evaluate(org.eclipse.emf.ecore.EObject, org.eclipse.emf.eef.runtime.query.QueryWrapper)
*/
public QueryResult evaluate(EObject context, QueryWrapper query) {
try {
ExplicitPathQuery pathQuery = (ExplicitPathQuery)query;
return new QueryResult(Status.OK_STATUS, pathQuery.getModelNavigation().evaluate(context));
} catch (Exception e) {
return new QueryResult(new Status(IStatus.ERROR, EEFQuery.PLUGIN_ID, "Error during evaluating model navigation.", e), null);
}
}
/**
* {@inheritDoc}
* @see org.eclipse.emf.eef.runtime.query.QueryProcessor#canEvaluate(org.eclipse.emf.eef.runtime.query.QueryWrapper)
*/
public boolean canEvaluate(QueryWrapper query) {
return query.getKind() == EXPLICITPATH_KIND;
}
}