OriginXOR.java

package edu.sc.seis.sod.subsetter.origin;

import org.w3c.dom.Element;

import edu.iris.Fissures.event.EventAttrImpl;
import edu.iris.Fissures.event.OriginImpl;
import edu.sc.seis.fissuresUtil.cache.CacheEvent;
import edu.sc.seis.sod.ConfigurationException;
import edu.sc.seis.sod.status.StringTree;
import edu.sc.seis.sod.status.StringTreeBranch;

/**
 * originXOR contains a sequence of originSubsetters. The minimum value of the sequence is 2 and
 * the max value of the sequence is 2.
 *<pre>
 *      <originXOR>
 *      <eventArea>
 *         <boxArea>
 *          <latitudeRange>
 *              <min>32</min>
 *              <max>35.5</max>
 *          </latitudeRange>
 *          <longitudeRange>
 *              <min>-83.5</min>
 *              <max>-78.5</max>
 *          </longitudeRange>
 *             </boxArea>
 *      </eventArea>
 *      <magnitudeRange>
 *          <magType>mb</magType>
 *          <min>3.5</min>
 *      </magnitudeRange>
 *      </originNOT>
 *</pre>
 *
 *
 * Created: Thu Mar 14 14:02:33 2002
 *
 * @author Philip Crotwell
 */

public final class OriginXOR extends EventLogicalSubsetter
    implements OriginSubsetter {

    public OriginXOR (Element config) throws ConfigurationException {
        super(config);
    }

    public StringTree accept(CacheEvent event, EventAttrImpl eventAttr, OriginImpl e) throws Exception{
        OriginSubsetter filterA = (OriginSubsetter)filterList.get(0);
        OriginSubsetter filterB = (OriginSubsetter)filterList.get(1);
        StringTree[] result = new StringTree[2];
        result[0] = filterA.accept(event, eventAttr, e);
        result[1] = filterB.accept(event, eventAttr, e);
        return new StringTreeBranch(this, result[0].isSuccess() != result[1].isSuccess(),
                                    result);
    }

}// OriginXOR