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jacareto » jacareto » convert » datacase » DCActionEventConverter.java
/*
 * Jacareto Copyright (c) 2002-2005
 * Applied Computer Science Research Group, Darmstadt University of
 * Technology, Institute of Mathematics & Computer Science,
 * Ludwigsburg University of Education, and Computer Based
 * Learning Research Group, Aachen University. All rights reserved.
 *
 * Jacareto 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 2 of the License, or (at your option) any later version.
 *
 * Jacareto 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 Jacareto; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

package jacareto.convert.datacase;


import jacareto.convert.Converter;
import jacareto.dataset.DataCase;
import jacareto.record.ActionEventRecordable;
import jacareto.struct.StructureElement;
import jacareto.system.Environment;

/**
 * A converter which is able to convert a {@link jacareto.record.ActionEventRecordable} to a data
 * case, and vice versa.
 *
 * @author <a href="mailto:cspannagel@web.de">Christian Spannagel</a>
 * @version 1.02
 */
public class DCActionEventConverter extends Converter {
    /**
     * Creates a new datacase event converter.
     *
     * @param env the environment
     */
    public DCActionEventConverter (Environment env) {
        super(env);
    }

    /**
     * Returns whether this converter is able to transform the specified object to a data case.
     * This converter is responsible for the given object if it is of type
     * <code>ActionEventRecordable</code>.
     *
     * @param element the structure element
     *
     * @return true if this converter is responsible for this structure element; otherwise false.
     */
    public boolean handlesElement (StructureElement element) {
        return (element != null) && element instanceof ActionEventRecordable;
    }

    /**
     * Converts the specified element to a data case, if this converter is responsible for it. For
     * responsibility see {@link #handlesElement(StructureElement)}.
     *
     * @param element the object to convert
     *
     * @return the record object
     */
    public Object convertElement (StructureElement element) {
        ActionEventRecordable recordable = (ActionEventRecordable) element;

        Object[] values = new Object[6];
        values[0] = new Integer(recordable.getID ());
        values[1] = recordable.getSourceName ();
        values[2] = recordable.getSourceClass ();
        values[3] = new Long(recordable.getDuration ());
        values[4] = new Integer(recordable.getModifiers ());
        values[5] = recordable.getActionCommand ();

        String[] valueNames = new String[6];
        valueNames[0] = language.getString ("Events.Event.ID");
        valueNames[1] = language.getString ("Events.Event.Source");
        valueNames[2] = language.getString ("Events.Event.SourceClass");
        valueNames[3] = language.getString ("Events.Event.RelativeTime");
        valueNames[4] = language.getString ("Events.InputEvent.Modifiers");
        valueNames[5] = language.getString ("Events.ActionEvent.Command");

        return new DataCase(env, values, valueNames);
    }

    /**
     * Returns <code>false</code> (This converter just converts in one direction at at the moment).
     *
     * @param other DOCUMENT ME!
     *
     * @return DOCUMENT ME!
     */
    public boolean handlesOther (Object other) {
        return false;
    }

    /**
     * Returns <code>null</code> (This converter just converts in one direction at at the moment).
     *
     * @param other DOCUMENT ME!
     *
     * @return DOCUMENT ME!
     */
    public StructureElement convertOther (Object other) {
        return null;
    }
}
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