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/*
* Copyright 2022 Anton Tananaev (anton@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.forward;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.traccar.config.Config;
import org.traccar.config.Keys;
import org.traccar.helper.Checksum;
import org.traccar.model.Device;
import org.traccar.model.Position;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.InvocationCallback;
import javax.ws.rs.core.Response;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import java.util.Calendar;
import java.util.Formatter;
import java.util.Locale;
import java.util.TimeZone;
public class PositionForwarderUrl implements PositionForwarder {
private final String url;
private final String header;
private final Client client;
private final ObjectMapper objectMapper;
public PositionForwarderUrl(Config config, Client client, ObjectMapper objectMapper) {
this.client = client;
this.objectMapper = objectMapper;
this.url = config.getString(Keys.FORWARD_URL);
this.header = config.getString(Keys.FORWARD_HEADER);
}
@Override
public void forward(PositionData positionData, ResultHandler resultHandler) {
try {
String url = formatRequest(positionData);
var requestBuilder = client.target(url).request();
if (header != null && !header.isEmpty()) {
for (String line: header.split("\\r?\\n")) {
String[] values = line.split(":", 2);
String headerName = values[0].trim();
String headerValue = values[1].trim();
requestBuilder.header(headerName, headerValue);
}
}
requestBuilder.async().get(new InvocationCallback<Response>() {
@Override
public void completed(Response response) {
if (response.getStatusInfo().getFamily() == Response.Status.Family.SUCCESSFUL) {
resultHandler.onResult(true, null);
} else {
int code = response.getStatusInfo().getStatusCode();
resultHandler.onResult(false, new RuntimeException("HTTP code " + code));
}
}
@Override
public void failed(Throwable throwable) {
resultHandler.onResult(false, throwable);
}
});
} catch (UnsupportedEncodingException | JsonProcessingException e) {
resultHandler.onResult(false, e);
}
}
public String formatRequest(
PositionData positionData) throws UnsupportedEncodingException, JsonProcessingException {
Position position = positionData.getPosition();
Device device = positionData.getDevice();
String request = url
.replace("{name}", URLEncoder.encode(device.getName(), StandardCharsets.UTF_8))
.replace("{uniqueId}", device.getUniqueId())
.replace("{status}", device.getStatus())
.replace("{deviceId}", String.valueOf(position.getDeviceId()))
.replace("{protocol}", String.valueOf(position.getProtocol()))
.replace("{deviceTime}", String.valueOf(position.getDeviceTime().getTime()))
.replace("{fixTime}", String.valueOf(position.getFixTime().getTime()))
.replace("{valid}", String.valueOf(position.getValid()))
.replace("{latitude}", String.valueOf(position.getLatitude()))
.replace("{longitude}", String.valueOf(position.getLongitude()))
.replace("{altitude}", String.valueOf(position.getAltitude()))
.replace("{speed}", String.valueOf(position.getSpeed()))
.replace("{course}", String.valueOf(position.getCourse()))
.replace("{accuracy}", String.valueOf(position.getAccuracy()))
.replace("{statusCode}", calculateStatus(position));
if (position.getAddress() != null) {
request = request.replace(
"{address}", URLEncoder.encode(position.getAddress(), StandardCharsets.UTF_8));
}
if (request.contains("{attributes}")) {
String attributes = objectMapper.writeValueAsString(position.getAttributes());
request = request.replace(
"{attributes}", URLEncoder.encode(attributes, StandardCharsets.UTF_8));
}
if (request.contains("{gprmc}")) {
request = request.replace("{gprmc}", formatSentence(position));
}
return request;
}
private static String formatSentence(Position position) {
StringBuilder s = new StringBuilder("$GPRMC,");
try (Formatter f = new Formatter(s, Locale.ENGLISH)) {
Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("UTC"), Locale.ENGLISH);
calendar.setTimeInMillis(position.getFixTime().getTime());
f.format("%1$tH%1$tM%1$tS.%1$tL,A,", calendar);
double lat = position.getLatitude();
double lon = position.getLongitude();
f.format("%02d%07.4f,%c,", (int) Math.abs(lat), Math.abs(lat) % 1 * 60, lat < 0 ? 'S' : 'N');
f.format("%03d%07.4f,%c,", (int) Math.abs(lon), Math.abs(lon) % 1 * 60, lon < 0 ? 'W' : 'E');
f.format("%.2f,%.2f,", position.getSpeed(), position.getCourse());
f.format("%1$td%1$tm%1$ty,,", calendar);
}
s.append(Checksum.nmea(s.substring(1)));
return s.toString();
}
// OpenGTS status code
private String calculateStatus(Position position) {
if (position.hasAttribute(Position.KEY_ALARM)) {
return "0xF841"; // STATUS_PANIC_ON
} else if (position.getSpeed() < 1.0) {
return "0xF020"; // STATUS_LOCATION
} else {
return "0xF11C"; // STATUS_MOTION_MOVING
}
}
}
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