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/*
* Copyright 2020 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.protocol;
import io.netty.channel.Channel;
import io.netty.handler.codec.http.FullHttpRequest;
import io.netty.handler.codec.http.HttpResponseStatus;
import org.traccar.BaseHttpProtocolDecoder;
import org.traccar.session.DeviceSession;
import org.traccar.Protocol;
import org.traccar.model.Position;
import javax.json.Json;
import javax.json.JsonObject;
import java.io.StringReader;
import java.net.SocketAddress;
import java.nio.charset.StandardCharsets;
import java.util.Date;
public class PolteProtocolDecoder extends BaseHttpProtocolDecoder {
public PolteProtocolDecoder(Protocol protocol) {
super(protocol);
}
@Override
protected Object decode(
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
FullHttpRequest request = (FullHttpRequest) msg;
String content = request.content().toString(StandardCharsets.UTF_8);
JsonObject json = Json.createReader(new StringReader(content)).readObject();
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, json.getString("ueToken"));
if (deviceSession == null) {
sendResponse(channel, HttpResponseStatus.BAD_REQUEST);
return null;
}
if (json.containsKey("location")) {
Position position = new Position(getProtocolName());
position.setDeviceId(deviceSession.getDeviceId());
JsonObject location = json.getJsonObject("location");
position.setValid(true);
position.setTime(new Date(location.getInt("detected_at") * 1000L));
position.setLatitude(location.getJsonNumber("latitude").doubleValue());
position.setLongitude(location.getJsonNumber("longitude").doubleValue());
position.setAltitude(location.getJsonNumber("altitude").doubleValue());
if (json.containsKey("report")) {
JsonObject report = json.getJsonObject("report");
position.set(Position.KEY_EVENT, report.getInt("event"));
if (report.containsKey("battery")) {
JsonObject battery = report.getJsonObject("battery");
position.set(Position.KEY_BATTERY_LEVEL, battery.getInt("level"));
position.set(Position.KEY_BATTERY, battery.getJsonNumber("voltage").doubleValue());
}
}
return position;
}
sendResponse(channel, HttpResponseStatus.OK);
return null;
}
}
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