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authorAnton Tananaev <anton.tananaev@gmail.com>2019-03-31 22:35:39 -0700
committerAnton Tananaev <anton.tananaev@gmail.com>2019-03-31 22:35:39 -0700
commit59416923dcb3a756eaf532cc4259f2f6625c0762 (patch)
tree9082dae6616deac8fda432b7bfd80e4a52b6d9dc /src/main/java/org/traccar/protocol/AstraProtocolDecoder.java
parent79a129dd6327d932133d6b9a50190d3f4927bff9 (diff)
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Convert project to gradle
Diffstat (limited to 'src/main/java/org/traccar/protocol/AstraProtocolDecoder.java')
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1 files changed, 129 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/AstraProtocolDecoder.java b/src/main/java/org/traccar/protocol/AstraProtocolDecoder.java
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+/*
+ * Copyright 2016 - 2018 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.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import io.netty.channel.Channel;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.NetworkMessage;
+import org.traccar.Protocol;
+import org.traccar.helper.BitUtil;
+import org.traccar.helper.DateBuilder;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.util.LinkedList;
+import java.util.List;
+
+public class AstraProtocolDecoder extends BaseProtocolDecoder {
+
+ private static final Logger LOGGER = LoggerFactory.getLogger(AstraProtocolDecoder.class);
+
+ public AstraProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ }
+
+ public static final int MSG_HEARTBEAT = 0x1A;
+ public static final int MSG_DATA = 0x10;
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ ByteBuf buf = (ByteBuf) msg;
+
+ if (channel != null) {
+ channel.writeAndFlush(new NetworkMessage(Unpooled.wrappedBuffer(new byte[] {0x06}), remoteAddress));
+ }
+
+ buf.readUnsignedByte(); // protocol
+ buf.readUnsignedShort(); // length
+
+ String imei = String.format("%08d", buf.readUnsignedInt()) + String.format("%07d", buf.readUnsignedMedium());
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, imei);
+ if (deviceSession == null) {
+ return null;
+ }
+
+ List<Position> positions = new LinkedList<>();
+
+ while (buf.readableBytes() > 2) {
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ buf.readUnsignedByte(); // index
+
+ position.setValid(true);
+ position.setLatitude(buf.readInt() * 0.000001);
+ position.setLongitude(buf.readInt() * 0.000001);
+
+ DateBuilder dateBuilder = new DateBuilder()
+ .setDate(1980, 1, 6).addMillis(buf.readUnsignedInt() * 1000L);
+ position.setTime(dateBuilder.getDate());
+
+ position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedByte() * 2));
+ position.setCourse(buf.readUnsignedByte() * 2);
+
+ int reason = buf.readUnsignedMedium();
+ position.set(Position.KEY_EVENT, reason);
+
+ int status = buf.readUnsignedShort();
+ position.set(Position.KEY_STATUS, status);
+
+ position.set(Position.PREFIX_IO + 1, buf.readUnsignedByte());
+ position.set(Position.PREFIX_ADC + 1, buf.readUnsignedByte());
+ position.set(Position.KEY_BATTERY, buf.readUnsignedByte());
+ position.set(Position.KEY_POWER, buf.readUnsignedByte());
+
+ buf.readUnsignedByte(); // max journey speed
+ buf.skipBytes(6); // accelerometer
+ position.set(Position.KEY_ODOMETER_TRIP, buf.readUnsignedShort());
+ buf.readUnsignedShort(); // journey idle time
+
+ position.setAltitude(buf.readUnsignedByte() * 20);
+
+ int quality = buf.readUnsignedByte();
+ position.set(Position.KEY_SATELLITES, quality & 0xf);
+ position.set(Position.KEY_RSSI, quality >> 4);
+
+ buf.readUnsignedByte(); // geofence events
+
+ if (BitUtil.check(status, 8)) {
+ position.set(Position.KEY_DRIVER_UNIQUE_ID, buf.readSlice(7).toString(StandardCharsets.US_ASCII));
+ position.set(Position.KEY_ODOMETER, buf.readUnsignedMedium() * 1000);
+ position.set(Position.KEY_HOURS, UnitsConverter.msFromHours(buf.readUnsignedShort()));
+ }
+
+ if (BitUtil.check(status, 6)) {
+ LOGGER.warn("Extension data is not supported");
+ return position;
+ }
+
+ positions.add(position);
+
+ }
+
+ return positions;
+ }
+
+}