/*
 *    GeoTools - The Open Source Java GIS Toolkit
 *    http://geotools.org
 *
 *    (C) 2002-2010, 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.se.v1_1.bindings;

import org.geotools.se.v1_1.SE;
import org.geotools.styling.ColorMap;
import org.geotools.xml.*;

import javax.xml.namespace.QName;

/**
 * Binding object for the element http://www.opengis.net/se:ColorMap.
 * 
 * <p>
 * 
 * <pre>
 *  <code>
 *  <xsd:element name="ColorMap" type="se:ColorMapType">
 *      <xsd:annotation>
 *          <xsd:documentation>
 *          A "ColorMap" defines either the colors of a pallette-type raster
 *          source or the mapping of numeric pixel values to colors.
 *        </xsd:documentation>
 *      </xsd:annotation>
 *  </xsd:element> 
 * 	
 *   </code>
 * </pre>
 * 
 * <pre>
 *       <code>
 *  <xsd:complexType name="ColorMapType">
 *      <xsd:choice>
 *          <xsd:element ref="se:Categorize"/>
 *          <xsd:element ref="se:Interpolate"/>
 *      </xsd:choice>
 *  </xsd:complexType> 
 *              
 *        </code>
 * </pre>
 * 
 * 
 * </p>
 * 
 * @generated
 *
 * @source $URL: http://svn.osgeo.org/geotools/trunk/modules/extension/xsd/xsd-sld/src/main/java/org/geotools/se/v1_1/bindings/ColorMapBinding.java $
 */
public class ColorMapBinding extends AbstractComplexBinding {

    /**
     * @generated
     */
    public QName getTarget() {
        return SE.ColorMap;
    }

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

    /**
     * <!-- begin-user-doc --> <!-- end-user-doc -->
     * 
     * @generated modifiable
     */
    public Object parse(ElementInstance instance, Node node, Object value) throws Exception {

        ColorMap map = (ColorMap) node.getChildValue("Categorize");
        if (map == null) {
            map = (ColorMap) node.getChildValue("Interpolate");
        }
        
        if (map == null) {
            throw new IllegalArgumentException("Categorize or Interpolate not specified");
        }
        return map;
    }

}