diff options
Diffstat (limited to 'src/org/traccar/protocol/FlespiProtocolDecoder.java')
-rw-r--r-- | src/org/traccar/protocol/FlespiProtocolDecoder.java | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/src/org/traccar/protocol/FlespiProtocolDecoder.java b/src/org/traccar/protocol/FlespiProtocolDecoder.java new file mode 100644 index 000000000..799d78ecb --- /dev/null +++ b/src/org/traccar/protocol/FlespiProtocolDecoder.java @@ -0,0 +1,116 @@ +/* + * Copyright 2017 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 org.jboss.netty.channel.Channel; +import org.jboss.netty.handler.codec.http.DefaultHttpResponse; +import org.jboss.netty.handler.codec.http.HttpRequest; +import org.jboss.netty.handler.codec.http.HttpResponse; +import org.jboss.netty.handler.codec.http.HttpResponseStatus; +import org.jboss.netty.handler.codec.http.HttpVersion; +import org.jboss.netty.handler.codec.http.HttpHeaders; +import org.traccar.BaseProtocolDecoder; +import org.traccar.DeviceSession; +import org.traccar.model.Position; + +import javax.json.Json; +import javax.json.JsonArray; +import javax.json.JsonNumber; +import javax.json.JsonObject; +import javax.json.JsonString; +import java.io.StringReader; +import java.net.SocketAddress; +import java.nio.charset.StandardCharsets; +import java.util.List; +import java.util.LinkedList; +import java.util.Date; + +public class FlespiProtocolDecoder extends BaseProtocolDecoder { + + public FlespiProtocolDecoder(FlespiProtocol protocol) { + super(protocol); + } + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + HttpRequest request = (HttpRequest) msg; + JsonArray result = Json.createReader(new StringReader(request.getContent().toString(StandardCharsets.UTF_8))) + .readArray(); + List<Position> positions = new LinkedList<>(); + for (int i = 0; i < result.size(); i++) { + JsonObject message = result.getJsonObject(i); + JsonString ident = message.getJsonString("ident"); + if (ident == null) { + continue; + } + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, ident.getString()); + if (deviceSession == null) { + continue; + } + Position position = new Position(); + position.setDeviceId(deviceSession.getDeviceId()); + decodePosition(message, position); + positions.add(position); + } + + sendResponse(channel, HttpResponseStatus.OK); + return positions; + } + + private void sendResponse(Channel channel, HttpResponseStatus status) { + if (channel != null) { + HttpResponse response = new DefaultHttpResponse(HttpVersion.HTTP_1_1, status); + response.headers().add(HttpHeaders.Names.CONTENT_LENGTH, 0); + channel.write(response); + } + } + + private void decodePosition(JsonObject object, Position position) { + position.setProtocol(getProtocolName()); + + Date deviceTime = new Date((long) object.getJsonNumber("timestamp").doubleValue() * 1000); + position.setTime(deviceTime); + JsonNumber lat = object.getJsonNumber("position.latitude"); + JsonNumber lon = object.getJsonNumber("position.longitude"); + if (lat != null && lon != null) { + position.setLatitude(lat.doubleValue()); + position.setLongitude(lon.doubleValue()); + } else { + getLastLocation(position, deviceTime); + } + JsonNumber speed = object.getJsonNumber("position.speed"); + if (speed != null) { + position.setSpeed(speed.doubleValue()); + } + JsonNumber course = object.getJsonNumber("position.direction"); + if (course != null) { + position.setCourse(course.doubleValue()); + } + JsonNumber altitude = object.getJsonNumber("position.altitude"); + if (altitude != null) { + position.setAltitude(altitude.doubleValue()); + } + + position.setValid(object.getBoolean("position.valid", true)); + position.set(Position.KEY_SATELLITES, object.getInt("position.satellites", 0)); + + if (object.getBoolean("alarm.event.trigger", false)) { + position.set(Position.KEY_ALARM, Position.ALARM_GENERAL); + } + } +} |