/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2015 - 2016, 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.gml3.simple;
import org.geotools.geometry.jts.CurvedGeometry;
import org.geotools.gml2.simple.GMLWriter;
import org.geotools.gml2.simple.GeometryEncoder;
import org.geotools.gml2.simple.QualifiedName;
import org.geotools.gml3.GML;
import org.geotools.xml.Encoder;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.AttributesImpl;
import com.vividsolutions.jts.geom.Geometry;
import com.vividsolutions.jts.geom.LineString;
import com.vividsolutions.jts.geom.LinearRing;
/**
* Encodes a GML3 multi line string
*
* @author Justin Deoliveira, OpenGeo
* @author Andrea Aime - GeoSolutions
*/
class MultiLineStringEncoder extends GeometryEncoder<Geometry> {
static final QualifiedName MULTI_CURVE = new QualifiedName(GML.NAMESPACE, "MultiCurve", "gml");
static final QualifiedName CURVE_MEMBER = new QualifiedName(GML.NAMESPACE, "curveMember", "gml");
static final QualifiedName MULTI_LINE_STRING = new QualifiedName(GML.NAMESPACE, "MultiLineString", "gml");
static final QualifiedName LINE_STRING_MEMBER = new QualifiedName(GML.NAMESPACE, "lineStringMember", "gml");
LineStringEncoder lse;
LinearRingEncoder lre;
CurveEncoder ce;
QualifiedName multiContainer;
QualifiedName member;
boolean curveEncoding;
protected MultiLineStringEncoder(Encoder encoder, String gmlPrefix, String gmlUri, boolean curveEncoding) {
super(encoder);
lse = new LineStringEncoder(encoder, gmlPrefix, gmlUri);
lre = new LinearRingEncoder(encoder, gmlPrefix, gmlUri);
ce = new CurveEncoder(encoder, gmlPrefix, gmlUri);
this.curveEncoding = curveEncoding;
if(curveEncoding) {
multiContainer = MULTI_CURVE.derive(gmlPrefix, gmlUri);
member = CURVE_MEMBER.derive(gmlPrefix, gmlUri);
} else {
multiContainer = MULTI_LINE_STRING.derive(gmlPrefix, gmlUri);
member = LINE_STRING_MEMBER.derive(gmlPrefix, gmlUri);
}
}
@Override
public void encode(Geometry geometry, AttributesImpl atts, GMLWriter handler)
throws Exception {
handler.startElement(multiContainer, atts);
encodeMembers(geometry, handler);
handler.endElement(multiContainer);
}
protected void encodeMembers(Geometry geometry, GMLWriter handler) throws SAXException,
Exception {
for (int i = 0; i < geometry.getNumGeometries(); i++) {
handler.startElement(member, null);
LineString line = (LineString) geometry.getGeometryN(i);
if (curveEncoding && line instanceof CurvedGeometry) {
ce.encode(line, null, handler);
} else if (line instanceof LinearRing) {
lre.encode(line, null, handler);
} else {
lse.encode(line, null, handler);
}
handler.endElement(member);
}
}
}