filterhandlerimpl.java

电子地图服务器,搭建自己的地图服务

/* Copyright (c) 2001 - 2007 TOPP - www.openplans.org.  All rights reserved.
 * This code is licensed under the GPL 2.0 license, availible at the root
 * application directory.
 */
package org.vfny.geoserver.util.requests;

import org.geotools.filter.FilterHandler;
import org.opengis.filter.Filter;
import org.xml.sax.ContentHandler;
import org.xml.sax.helpers.XMLFilterImpl;
import java.util.logging.Logger;


/**
 * Minimal class to implement the FilterHandler interface.
 *
 * @author Rob Hranac, TOPP
 * @version $Id: FilterHandlerImpl.java 7746 2007-11-13 15:38:35Z aaime $
 */
public class FilterHandlerImpl extends XMLFilterImpl implements ContentHandler, FilterHandler {
    /** Class logger */
    private static Logger LOGGER = org.geotools.util.logging.Logging.getLogger("org.vfny.geoserver.requests");

    /** Tracks current filter */
    private Filter currentFilter = null;

    /**
     * Empty constructor.
     */
    public FilterHandlerImpl() {
        super();
    }

    /**
     * Recieves the filter from the filter parsing children.
     *
     * @param filter (OGC WFS) Filter from (SAX) filter..
     */
    public void filter(Filter filter) {
        LOGGER.finest("found filter: " + filter.toString());
        currentFilter = filter;
    }

    /**
     * Gives filter to whoever wants it.
     *
     * @return (OGC WFS) Filter from (SAX) filter..
     */
    public Filter getFilter() {
        return currentFilter;
    }
}