/*
 *    GeoTools - The Open Source Java GIS Toolkit
 *    http://geotools.org
 *
 *    (C) 2002-2008, Open Source Geospatial Foundation (OSGeo)
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation;
 *    version 2.1 of the License.
 *
 *    This library 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
 *    Lesser General Public License for more details.
 */
package org.geotools.filter.v1_0;

import org.picocontainer.MutablePicoContainer;
import java.util.HashSet;
import javax.xml.namespace.QName;
import org.opengis.filter.BinaryComparisonOperator;
import org.opengis.filter.BinaryLogicOperator;
import org.opengis.filter.Filter;
import org.opengis.filter.FilterFactory2;
import org.opengis.filter.Id;
import org.opengis.filter.spatial.BinarySpatialOperator;
import org.geotools.filter.FilterParsingUtils;
import org.geotools.xml.AbstractComplexBinding;
import org.geotools.xml.ElementInstance;
import org.geotools.xml.Node;


/**
 * Binding object for the type http://www.opengis.net/ogc:FilterType.
 *
 * <p>
 *        <pre>
 *         <code>
 *  <xsd:complexType name="FilterType">
 *      <xsd:choice>
 *          <xsd:element ref="ogc:spatialOps"/>
 *          <xsd:element ref="ogc:comparisonOps"/>
 *          <xsd:element ref="ogc:logicOps"/>
 *          <xsd:element maxOccurs="unbounded" ref="ogc:FeatureId"/>
 *      </xsd:choice>
 *  </xsd:complexType>
 *
 *          </code>
 *         </pre>
 * </p>
 *
 * @generated
 *
 *
 * @source $URL$
 */
public class OGCFilterTypeBinding extends AbstractComplexBinding {
    FilterFactory2 factory;

    public OGCFilterTypeBinding(FilterFactory2 factory) {
        this.factory = factory;
    }

    /**
     * @generated
     */
    public QName getTarget() {
        return OGC.FilterType;
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     *
     * @generated modifiable
     */
    public Class getType() {
        return Filter.class;
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     *
     * @generated modifiable
     */
    public void initialize(ElementInstance instance, Node node, MutablePicoContainer context) {
    }

    /**
     * <!-- begin-user-doc -->
     * Surprised we actually have something to do: namely collapse multiple fid filters using AND
     * <!-- end-user-doc -->
     *
     * @generated modifiable
     */
    public Object parse(ElementInstance instance, Node node, Object value)
        throws Exception {
        if (node.hasChild("FeatureId")) {
            //round up into a featureId filter
            HashSet fids = new HashSet();
            fids.addAll(node.getChildValues("FeatureId"));

            return factory.id(fids);
        }

        return node.getChildValue(Filter.class);
    }

    public Object getProperty(Object object, QName name)
        throws Exception {
        
        return FilterParsingUtils.Filter_getProperty(object, name);
    }
}