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/*
 * This is part of Geomajas, a GIS framework, http://www.geomajas.org/.
 *
 * Copyright 2008-2016 Geosparc nv, http://www.geosparc.com/, Belgium.
 *
 * The program is available in open source according to the GNU Affero
 * General Public License. All contributions in this program are covered
 * by the Geomajas Contributors License Agreement. For full licensing
 * details, see LICENSE.txt in the project root.
 */

package org.geomajas.internal.layer.vector;

import org.geomajas.global.ExceptionCode;
import org.geomajas.global.GeomajasException;
import org.geomajas.layer.VectorLayer;
import org.geomajas.layer.feature.InternalFeature;
import org.geomajas.security.GeomajasSecurityException;
import org.geomajas.service.pipeline.PipelineCode;
import org.geomajas.service.pipeline.PipelineContext;

/**
 * Prepare saving the feature in case of update (assure "featureDataObject" is available).
 *
 * @author Joachim Van der Auwera
 */
public class SaveOrUpdateUpdateStep extends AbstractSaveOrUpdateStep {

	public void execute(PipelineContext context, Object response) throws GeomajasException {
		InternalFeature oldFeature = context.getOptional(PipelineCode.OLD_FEATURE_KEY, InternalFeature.class);
		InternalFeature newFeature = context.get(PipelineCode.FEATURE_KEY, InternalFeature.class);
		if (null != oldFeature) {
			String layerId = context.get(PipelineCode.LAYER_ID_KEY, String.class);
			VectorLayer layer = context.get(PipelineCode.LAYER_KEY, VectorLayer.class);
			if (securityContext.isFeatureUpdateAuthorized(layerId, oldFeature, newFeature)) {
				if (null == context.getOptional(PipelineCode.FEATURE_DATA_OBJECT_KEY)) {
					context.put(PipelineCode.FEATURE_DATA_OBJECT_KEY, layer.read(newFeature.getId()));
				}
			} else {
				throw new GeomajasSecurityException(ExceptionCode.FEATURE_UPDATE_PROHIBITED,
						oldFeature.getId(), securityContext.getUserId());
			}
		}
	}
}