New geo bundles

[gpl/argeo-suite.git] / org.argeo.app.core / src / org / argeo / app / geo / GpxUtils.java

diff --git a/org.argeo.app.core/src/org/argeo/app/geo/GpxUtils.java b/org.argeo.app.core/src/org/argeo/app/geo/GpxUtils.java
deleted file mode 100644 (file)
index 645b08b..0000000
--- a/org.argeo.app.core/src/org/argeo/app/geo/GpxUtils.java
+++ /dev/null
@@ -1,99 +0,0 @@
-package org.argeo.app.geo;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.io.OutputStreamWriter;
-import java.io.Writer;
-import java.nio.charset.StandardCharsets;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Objects;
-import java.util.StringTokenizer;
-
-import javax.xml.parsers.ParserConfigurationException;
-import javax.xml.parsers.SAXParser;
-import javax.xml.parsers.SAXParserFactory;
-
-import org.geotools.data.DataUtilities;
-import org.geotools.feature.SchemaException;
-import org.geotools.feature.simple.SimpleFeatureBuilder;
-import org.geotools.geometry.jts.JTSFactoryFinder;
-import org.locationtech.jts.geom.Coordinate;
-import org.locationtech.jts.geom.GeometryFactory;
-import org.locationtech.jts.geom.Polygon;
-import org.opengis.feature.simple.SimpleFeature;
-import org.opengis.feature.simple.SimpleFeatureType;
-import org.xml.sax.Attributes;
-import org.xml.sax.SAXException;
-import org.xml.sax.helpers.DefaultHandler;
-
-/** Utilities around the GPX format. */
-public class GpxUtils {
-
-       public static SimpleFeature parseGpxToPolygon(InputStream in) throws IOException {
-               try {
-                       final SimpleFeatureType TYPE = DataUtilities.createType("Area", "the_geom:Polygon:srid=4326");
-                       SimpleFeatureBuilder featureBuilder = new SimpleFeatureBuilder(TYPE);
-
-                       GeometryFactory geometryFactory = JTSFactoryFinder.getGeometryFactory();
-                       List<Coordinate> coordinates = new ArrayList<>();
-                       SAXParserFactory factory = SAXParserFactory.newInstance();
-                       SAXParser saxParser = factory.newSAXParser();
-
-                       saxParser.parse(in, new DefaultHandler() {
-
-                               @Override
-                               public void startElement(String uri, String localName, String qName, Attributes attributes)
-                                               throws SAXException {
-                                       if ("trkpt".equals(qName)) {
-                                               Double latitude = Double.parseDouble(attributes.getValue("lat"));
-                                               Double longitude = Double.parseDouble(attributes.getValue("lon"));
-                                               Coordinate coordinate = new Coordinate(longitude, latitude);
-                                               coordinates.add(coordinate);
-                                       }
-                               }
-
-                       });
-                       // close the line string
-                       coordinates.add(coordinates.get(0));
-
-                       Polygon polygon = geometryFactory.createPolygon(coordinates.toArray(new Coordinate[coordinates.size()]));
-                       featureBuilder.add(polygon);
-                       SimpleFeature area = featureBuilder.buildFeature(null);
-                       return area;
-               } catch (ParserConfigurationException | SAXException | SchemaException e) {
-                       throw new RuntimeException("Cannot convert GPX", e);
-               }
-       }
-
-       public static void writeGeoShapeAsGpx(String geoShape, OutputStream out) throws IOException {
-               Objects.requireNonNull(geoShape);
-               Writer writer = new OutputStreamWriter(out, StandardCharsets.UTF_8);
-               writer.append("<gpx><trk><trkseg>");
-               StringTokenizer stSeg = new StringTokenizer(geoShape.trim(), ";");
-               while (stSeg.hasMoreTokens()) {
-                       StringTokenizer stPt = new StringTokenizer(stSeg.nextToken().trim(), " ");
-                       String lat = stPt.nextToken();
-                       String lng = stPt.nextToken();
-                       String alt = stPt.nextToken();
-                       // String precision = stPt.nextToken();
-                       writer.append("<trkpt");
-                       writer.append(" lat=\"").append(lat).append('\"');
-                       writer.append(" lon=\"").append(lng).append('\"');
-                       if (!alt.equals("0.0")) {
-                               writer.append('>');
-                               writer.append("<ele>").append(alt).append("</ele>");
-                               writer.append("</trkpt>");
-                       } else {
-                               writer.append("/>");
-                       }
-               }
-               writer.append("</trkseg></trk></gpx>");
-               writer.flush();
-       }
-
-       /** Singleton. */
-       private GpxUtils() {
-       }
-}