org.geotools.styling.VendorSymbolizerImpl Maven / Gradle / Ivy

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The main module contains the GeoTools public interfaces that are used by other GeoTools modules (and GeoTools applications). Where possible we make use industry standard terms as provided by OGC and ISO standards. The formal GeoTools public api consists of gt-metadata, jts and the gt-main module. The main module contains the default implementations that are available provided to other GeoTools modules using our factory system. Factories are obtained from an appropriate FactoryFinder, giving applications a chance configure the factory used using the Factory Hints facilities. FilterFactory ff = CommonFactoryFinder.getFilterFactory(); Expression expr = ff.add( expression1, expression2 ); If you find yourself using implementation specific classes chances are you doing it wrong: Expression expr = new AddImpl( expression1, expressiom2 );

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/*
 *    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.styling;

import java.util.HashMap;
import java.util.Map;
import org.opengis.filter.expression.Expression;
import org.opengis.style.StyleVisitor;

/**
 * ExtensioSymbolizer capturing a vendor specific extension.
 *
 * This is a default placeholder to record a vendor specific extension; in case an implementation
 * could not be found on the classpath.
 *
 * @author James Macgill, CCG
 * @author Johann Sorel (Geomatys)
 * @version $Id$
 */
public class VendorSymbolizerImpl extends AbstractSymbolizer implements ExtensionSymbolizer {

    private String extensionName;
    private Map parameters = new HashMap();

    /** Creates a new instance of DefaultPolygonStyler */
    protected VendorSymbolizerImpl() {}

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = super.hashCode();
        result = prime * result + ((extensionName == null) ? 0 : extensionName.hashCode());
        result = prime * result + ((parameters == null) ? 0 : parameters.hashCode());
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) return true;
        if (!super.equals(obj)) return false;
        if (getClass() != obj.getClass()) return false;
        VendorSymbolizerImpl other = (VendorSymbolizerImpl) obj;
        if (extensionName == null) {
            if (other.extensionName != null) return false;
        } else if (!extensionName.equals(other.extensionName)) return false;
        if (parameters == null) {
            if (other.parameters != null) return false;
        } else if (!parameters.equals(other.parameters)) return false;
        return true;
    }

    static VendorSymbolizerImpl cast(org.opengis.style.Symbolizer symbolizer) {
        if (symbolizer == null) {
            return null;
        } else if (symbolizer instanceof VendorSymbolizerImpl) {
            return (VendorSymbolizerImpl) symbolizer;
        } else if (symbolizer instanceof org.opengis.style.ExtensionSymbolizer) {
            org.opengis.style.ExtensionSymbolizer extensionSymbolizer =
                    (org.opengis.style.ExtensionSymbolizer) symbolizer;
            VendorSymbolizerImpl copy = new VendorSymbolizerImpl();
            copy.setDescription(extensionSymbolizer.getDescription());
            copy.setGeometryPropertyName(extensionSymbolizer.getGeometryPropertyName());
            copy.setName(extensionSymbolizer.getName());
            copy.setUnitOfMeasure(extensionSymbolizer.getUnitOfMeasure());

            return copy;
        } else {
            return null; // not possible
        }
    }

    public String getExtensionName() {
        return extensionName;
    }

    public Map getParameters() {
        return parameters;
    }

    public void setExtensionName(String name) {
        this.extensionName = name;
    }

    public Object accept(StyleVisitor visitor, Object data) {
        return visitor.visit(this, data);
    }

    public void accept(org.geotools.styling.StyleVisitor visitor) {
        visitor.visit(this);
    }
}