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/**
 * Copyright (C) 2008-2013 LimeTri. All rights reserved.
 *
 * AgroSense is free software: you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later
 * version.
 *
 * There are special exceptions to the terms and conditions of the GPLv3 as it
 * is applied to this software, see the FLOSS License Exception
 * .
 *
 * AgroSense is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * AgroSense. If not, see .
 */
package eu.agrosense.spi.activity;

import eu.agrosense.api.session.Connections;
import eu.agrosense.shared.model.ModelConstants;
import eu.agrosense.shared.model.PM;
import org.opendolphin.core.PresentationModel;
import org.opendolphin.core.client.ClientAttribute;

/**
 * Helper class for presentation models
 *
 *
 *
 * @author Timon Veenstra 
 */
public class Model {

    /**
     * Useful in bindings when you are not certain the attribute already exists:
     * 
     * JFXBinder.bind(Field.PROP_NAME).of(Model.withAt(model,
     * Field.PROP_NAME)).to(AbstractNode.PROP_NAME).of(this);
     * 
     *
     * @param model
     * @param attributeKey
     * @return
     */
    public static PresentationModel withAt(PresentationModel model, String attributeKey) {
//        Validate.notNull(model);
//        Validate.notNull(attributeKey);
        if (model.getAt(attributeKey) == null){
            //FIXME when value already exist on server side risk of clearing, perhaps fix/catch on server side
            ClientAttribute attribute = new ClientAttribute(attributeKey, "");
            String uri = PM.getURIString(model);
            if (uri != null) attribute.setQualifier(ModelConstants.qualify(uri, attributeKey));
            Connections.get().getClientDolphin().addAttributeToModel(model, attribute);
        }
        return model;
    }
    
    /**
     * 
     * @param model
     * @param attributeKeys
     * @return 
     */
    public static PresentationModel withAt(PresentationModel model, String... attributeKeys) {
        PresentationModel result = model;
        for (String att:attributeKeys){
            result = Model.withAt(model, att);
        }
        return result;
    }
    
    public static void setValue(PresentationModel model, String propertyName, Object value) {
        // ensure the attribute exists first, then set the value:
        withAt(model, propertyName).getAt(propertyName).setValue(value);
    }
}