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/*
* Copyright 2016 Anton Tananaev (anton@traccar.org)
* Copyright 2016 Andrey Kunitsyn (andrey@traccar.org)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.traccar.web;
import java.util.Collection;
import org.traccar.helper.DateUtil;
import org.traccar.helper.UnitsConverter;
import org.traccar.model.Position;
public class GpxBuilder {
private StringBuilder builder = new StringBuilder();
private static final String HEADER = "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?>"
+ "<gpx xmlns=\"http://www.topografix.com/GPX/1/1\" creator=\"Traccar\" version=\"1.1\" "
+ "xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" "
+ "xsi:schemaLocation=\"http://www.topografix.com/GPX/1/1 "
+ "http://www.topografix.com/GPX/1/1/gpx.xsd\"><trk>\n";
private static final String NAME = "<name>%1$s</name><trkseg>%n";
private static final String POINT = "<trkpt lat=\"%1$f\" lon=\"%2$f\">"
+ "<time>%3$s</time>"
+ "<geoidheight>%4$f</geoidheight>"
+ "<course>%5$f</course>"
+ "<speed>%6$f</speed>"
+ "</trkpt>%n";
private static final String FOOTER = "</trkseg></trk></gpx>";
public GpxBuilder() {
builder.append(HEADER);
builder.append("<trkseg>\n");
}
public GpxBuilder(String name) {
builder.append(HEADER);
builder.append(String.format(NAME, name));
}
public void addPosition(Position position) {
builder.append(String.format(POINT, position.getLatitude(), position.getLongitude(),
DateUtil.formatDate(position.getFixTime()), position.getAltitude(),
position.getCourse(), UnitsConverter.mpsFromKnots(position.getSpeed())));
}
public void addPositions(Collection<Position> positions) {
for (Position position : positions) {
addPosition(position);
}
}
public String build() {
builder.append(FOOTER);
return builder.toString();
}
}
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