gml3featuretransformer.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.geoserver.wfs.xml;

import org.geotools.feature.Feature;
import org.geotools.gml.producer.FeatureTransformer;
import org.geotools.gml.producer.GeometryTransformer.GeometryTranslator;
import org.geotools.gml3.bindings.GML;
import org.xml.sax.Attributes;
import org.xml.sax.ContentHandler;
import org.xml.sax.helpers.AttributesImpl;
import java.util.Set;


public class GML3FeatureTransformer extends FeatureTransformer {
    protected FeatureTranslator createTranslator(ContentHandler handler, String prefix, String ns,
        FeatureTypeNamespaces featureTypeNamespaces, SchemaLocationSupport schemaLocationSupport) {
        return new GML3FeatureTranslator(handler, prefix, ns, featureTypeNamespaces,
            schemaLocationSupport);
    }

    protected void loadGmlAttributes(Set set) {
        set.add("name");
        set.add("description");
    }

    public static class GML3FeatureTranslator extends FeatureTranslator {
        public GML3FeatureTranslator(ContentHandler handler, String prefix, String ns,
            FeatureTypeNamespaces featureTypeNamespaces, SchemaLocationSupport schemaLocationSupport) {
            super(handler, prefix, ns, featureTypeNamespaces, schemaLocationSupport);
        }

        protected GeometryTranslator createGeometryTranslator(ContentHandler handler) {
            return new GML3GeometryTranslator(handler);
        }

        protected GeometryTranslator createGeometryTranslator(ContentHandler handler,
            int numDecimals) {
            return new GML3GeometryTranslator(handler, numDecimals);
        }

        protected GeometryTranslator createGeometryTranslator(ContentHandler handler,
            int numDecimals, boolean useDummyZ) {
            return new GML3GeometryTranslator(handler, numDecimals, useDummyZ);
        }

        protected Attributes encodeFeatureId(Feature f) {
            AttributesImpl atts = new AttributesImpl();

            if (f.getID() != null) {
                atts.addAttribute(GML.NAMESPACE, "id", "gml:id", null, f.getID());
            }

            return atts;
        }

        protected String boxElement() {
            return "Envelope";
        }
    }
}