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Diffstat (limited to 'src/main/java/org/traccar/protocol/Minifinder2ProtocolDecoder.java')
-rw-r--r--src/main/java/org/traccar/protocol/Minifinder2ProtocolDecoder.java153
1 files changed, 153 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/Minifinder2ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Minifinder2ProtocolDecoder.java
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index 000000000..256848990
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+++ b/src/main/java/org/traccar/protocol/Minifinder2ProtocolDecoder.java
@@ -0,0 +1,153 @@
+/*
+ * Copyright 2019 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.ByteBufUtil;
+import io.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.Protocol;
+import org.traccar.helper.BitUtil;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.CellTower;
+import org.traccar.model.Network;
+import org.traccar.model.Position;
+import org.traccar.model.WifiAccessPoint;
+
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+
+public class Minifinder2ProtocolDecoder extends BaseProtocolDecoder {
+
+ public Minifinder2ProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ }
+
+ public static final int MSG_DATA = 0x01;
+
+ private String decodeAlarm(int code) {
+ if (BitUtil.check(code, 0)) {
+ return Position.ALARM_LOW_BATTERY;
+ }
+ if (BitUtil.check(code, 1)) {
+ return Position.ALARM_OVERSPEED;
+ }
+ if (BitUtil.check(code, 2)) {
+ return Position.ALARM_FALL_DOWN;
+ }
+ if (BitUtil.check(code, 8)) {
+ return Position.ALARM_POWER_OFF;
+ }
+ if (BitUtil.check(code, 9)) {
+ return Position.ALARM_POWER_ON;
+ }
+ if (BitUtil.check(code, 12)) {
+ return Position.ALARM_SOS;
+ }
+ return null;
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ ByteBuf buf = (ByteBuf) msg;
+
+ buf.readUnsignedByte(); // header
+ buf.readUnsignedByte(); // properties
+ buf.readUnsignedShortLE(); // length
+ buf.readUnsignedShortLE(); // checksum
+ buf.readUnsignedShortLE(); // index
+ int type = buf.readUnsignedByte();
+
+ if (type == MSG_DATA) {
+
+ Position position = new Position(getProtocolName());
+
+ while (buf.isReadable()) {
+ int endIndex = buf.readUnsignedByte() + buf.readerIndex();
+ int key = buf.readUnsignedByte();
+ switch (key) {
+ case 0x01:
+ DeviceSession deviceSession = getDeviceSession(
+ channel, remoteAddress, buf.readBytes(15).toString(StandardCharsets.US_ASCII));
+ if (deviceSession == null) {
+ return null;
+ }
+ position.setDeviceId(deviceSession.getDeviceId());
+ break;
+ case 0x02:
+ position.set(Position.KEY_ALARM, decodeAlarm(buf.readIntLE()));
+ break;
+ case 0x20:
+ position.setLatitude(buf.readIntLE() * 0.0000001);
+ position.setLongitude(buf.readIntLE() * 0.0000001);
+ position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedShortLE()));
+ position.setCourse(buf.readUnsignedShortLE());
+ position.setAltitude(buf.readShortLE());
+ position.setValid(buf.readUnsignedShortLE() > 0);
+ position.set(Position.KEY_ODOMETER, buf.readUnsignedIntLE());
+ position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
+ break;
+ case 0x21:
+ int mcc = buf.readUnsignedShortLE();
+ int mnc = buf.readUnsignedByte();
+ if (position.getNetwork() == null) {
+ position.setNetwork(new Network());
+ }
+ while (buf.readerIndex() < endIndex) {
+ int rssi = buf.readByte();
+ position.getNetwork().addCellTower(CellTower.from(
+ mcc, mnc, buf.readUnsignedShortLE(), buf.readUnsignedShortLE(), rssi));
+ }
+ break;
+ case 0x22:
+ if (position.getNetwork() == null) {
+ position.setNetwork(new Network());
+ }
+ while (buf.readerIndex() < endIndex) {
+ int rssi = buf.readByte();
+ String mac = ByteBufUtil.hexDump(buf.readSlice(6)).replaceAll("(..)", "$1:");
+ position.getNetwork().addWifiAccessPoint(WifiAccessPoint.from(
+ mac.substring(0, mac.length() - 1), rssi));
+ }
+ break;
+ case 0x40:
+ buf.readUnsignedIntLE(); // timestamp
+ int heartRate = buf.readUnsignedByte();
+ if (heartRate > 1) {
+ position.set(Position.KEY_HEART_RATE, heartRate);
+ }
+ break;
+ default:
+ break;
+ }
+ buf.readerIndex(endIndex);
+ }
+
+ if (!position.getAttributes().containsKey(Position.KEY_SATELLITES)) {
+ getLastLocation(position, null);
+ }
+
+ return position.getDeviceId() > 0 ? position : null;
+
+ }
+
+ return null;
+ }
+
+}