diff options
Diffstat (limited to 'src/main/java/org/traccar/protocol/OrbcommProtocolDecoder.java')
-rw-r--r-- | src/main/java/org/traccar/protocol/OrbcommProtocolDecoder.java | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/OrbcommProtocolDecoder.java b/src/main/java/org/traccar/protocol/OrbcommProtocolDecoder.java new file mode 100644 index 000000000..1164d72a1 --- /dev/null +++ b/src/main/java/org/traccar/protocol/OrbcommProtocolDecoder.java @@ -0,0 +1,124 @@ +/* + * 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.protocol; + +import io.netty.channel.Channel; +import io.netty.handler.codec.http.FullHttpResponse; +import org.traccar.BasePipelineFactory; +import org.traccar.BaseProtocolDecoder; +import org.traccar.session.DeviceSession; +import org.traccar.Protocol; +import org.traccar.helper.UnitsConverter; +import org.traccar.model.Position; + +import javax.json.Json; +import javax.json.JsonArray; +import javax.json.JsonObject; +import javax.json.JsonValue; +import java.io.StringReader; +import java.net.SocketAddress; +import java.nio.charset.StandardCharsets; +import java.text.DateFormat; +import java.text.SimpleDateFormat; +import java.util.Date; +import java.util.LinkedList; +import java.util.TimeZone; + +public class OrbcommProtocolDecoder extends BaseProtocolDecoder { + + public OrbcommProtocolDecoder(Protocol protocol) { + super(protocol); + } + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + FullHttpResponse response = (FullHttpResponse) msg; + String content = response.content().toString(StandardCharsets.UTF_8); + JsonObject json = Json.createReader(new StringReader(content)).readObject(); + + if (channel != null && !json.getString("NextStartUTC").isEmpty()) { + OrbcommProtocolPoller poller = + BasePipelineFactory.getHandler(channel.pipeline(), OrbcommProtocolPoller.class); + if (poller != null) { + DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); + dateFormat.setTimeZone(TimeZone.getTimeZone("UTC")); + poller.setStartTime(dateFormat.parse(json.getString("NextStartUTC"))); + } + } + + if (json.get("Messages").getValueType() == JsonValue.ValueType.NULL) { + return null; + } + + LinkedList<Position> positions = new LinkedList<>(); + + JsonArray messages = json.getJsonArray("Messages"); + for (int i = 0; i < messages.size(); i++) { + JsonObject message = messages.getJsonObject(i); + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, message.getString("MobileID")); + if (deviceSession != null) { + + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); + dateFormat.setTimeZone(TimeZone.getTimeZone("UTC")); + position.setDeviceTime(dateFormat.parse(message.getString("MessageUTC"))); + + JsonArray fields = message.getJsonObject("Payload").getJsonArray("Fields"); + for (int j = 0; j < fields.size(); j++) { + JsonObject field = fields.getJsonObject(j); + String value = field.getString("Value"); + switch (field.getString("Name").toLowerCase()) { + case "eventtime": + position.setDeviceTime(new Date(Long.parseLong(value) * 1000)); + break; + case "latitude": + position.setLatitude(Integer.parseInt(value) / 60000.0); + break; + case "longitude": + position.setLongitude(Integer.parseInt(value) / 60000.0); + break; + case "speed": + position.setSpeed(UnitsConverter.knotsFromKph(Integer.parseInt(value))); + break; + case "heading": + int heading = Integer.parseInt(value); + position.setCourse(heading <= 360 ? heading : 0); + break; + default: + break; + } + } + + if (position.getLatitude() != 0 && position.getLongitude() != 0) { + position.setValid(true); + position.setFixTime(position.getDeviceTime()); + } else { + getLastLocation(position, position.getDeviceTime()); + } + + positions.add(position); + + } + } + + return positions.isEmpty() ? null : positions; + } + +} |