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Diffstat (limited to 'src/main/java/org/traccar/protocol/SkypatrolProtocolDecoder.java')
-rw-r--r--src/main/java/org/traccar/protocol/SkypatrolProtocolDecoder.java193
1 files changed, 193 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/SkypatrolProtocolDecoder.java b/src/main/java/org/traccar/protocol/SkypatrolProtocolDecoder.java
new file mode 100644
index 000000000..3c7ca6dc5
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+++ b/src/main/java/org/traccar/protocol/SkypatrolProtocolDecoder.java
@@ -0,0 +1,193 @@
+/*
+ * Copyright 2012 - 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.channel.Channel;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.Context;
+import org.traccar.DeviceSession;
+import org.traccar.Protocol;
+import org.traccar.helper.BitUtil;
+import org.traccar.helper.DateBuilder;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+
+public class SkypatrolProtocolDecoder extends BaseProtocolDecoder {
+
+ private static final Logger LOGGER = LoggerFactory.getLogger(SkypatrolProtocolDecoder.class);
+
+ private final long defaultMask;
+
+ public SkypatrolProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ defaultMask = Context.getConfig().getInteger(getProtocolName() + ".mask");
+ }
+
+ private static double convertCoordinate(long coordinate) {
+ int sign = 1;
+ if (coordinate > 0x7fffffffL) {
+ sign = -1;
+ coordinate = 0xffffffffL - coordinate;
+ }
+
+ long degrees = coordinate / 1000000;
+ double minutes = (coordinate % 1000000) / 10000.0;
+
+ return sign * (degrees + minutes / 60);
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ ByteBuf buf = (ByteBuf) msg;
+
+ int apiNumber = buf.readUnsignedShort();
+ int commandType = buf.readUnsignedByte();
+ int messageType = BitUtil.from(buf.readUnsignedByte(), 4);
+ long mask = defaultMask;
+ if (buf.readUnsignedByte() == 4) {
+ mask = buf.readUnsignedInt();
+ }
+
+ // Binary position report
+ if (apiNumber == 5 && commandType == 2 && messageType == 1 && BitUtil.check(mask, 0)) {
+
+ Position position = new Position(getProtocolName());
+
+ if (BitUtil.check(mask, 1)) {
+ position.set(Position.KEY_STATUS, buf.readUnsignedInt());
+ }
+
+ String id;
+ if (BitUtil.check(mask, 23)) {
+ id = buf.toString(buf.readerIndex(), 8, StandardCharsets.US_ASCII).trim();
+ buf.skipBytes(8);
+ } else if (BitUtil.check(mask, 2)) {
+ id = buf.toString(buf.readerIndex(), 22, StandardCharsets.US_ASCII).trim();
+ buf.skipBytes(22);
+ } else {
+ LOGGER.warn("No device id field");
+ return null;
+ }
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, id);
+ if (deviceSession == null) {
+ return null;
+ }
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ if (BitUtil.check(mask, 3)) {
+ position.set(Position.PREFIX_IO + 1, buf.readUnsignedShort());
+ }
+
+ if (BitUtil.check(mask, 4)) {
+ position.set(Position.PREFIX_ADC + 1, buf.readUnsignedShort());
+ }
+
+ if (BitUtil.check(mask, 5)) {
+ position.set(Position.PREFIX_ADC + 2, buf.readUnsignedShort());
+ }
+
+ if (BitUtil.check(mask, 7)) {
+ buf.readUnsignedByte(); // function category
+ }
+
+ DateBuilder dateBuilder = new DateBuilder();
+
+ if (BitUtil.check(mask, 8)) {
+ dateBuilder.setDateReverse(
+ buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte());
+ }
+
+ if (BitUtil.check(mask, 9)) {
+ position.setValid(buf.readUnsignedByte() == 1); // gps status
+ }
+
+ if (BitUtil.check(mask, 10)) {
+ position.setLatitude(convertCoordinate(buf.readUnsignedInt()));
+ }
+
+ if (BitUtil.check(mask, 11)) {
+ position.setLongitude(convertCoordinate(buf.readUnsignedInt()));
+ }
+
+ if (BitUtil.check(mask, 12)) {
+ position.setSpeed(buf.readUnsignedShort() / 10.0);
+ }
+
+ if (BitUtil.check(mask, 13)) {
+ position.setCourse(buf.readUnsignedShort() / 10.0);
+ }
+
+ if (BitUtil.check(mask, 14)) {
+ dateBuilder.setTime(
+ buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte());
+ }
+
+ position.setTime(dateBuilder.getDate());
+
+ if (BitUtil.check(mask, 15)) {
+ position.setAltitude(buf.readMedium());
+ }
+
+ if (BitUtil.check(mask, 16)) {
+ position.set(Position.KEY_SATELLITES, buf.readUnsignedByte());
+ }
+
+ if (BitUtil.check(mask, 17)) {
+ position.set(Position.KEY_BATTERY, buf.readUnsignedShort());
+ }
+
+ if (BitUtil.check(mask, 20)) {
+ position.set(Position.KEY_ODOMETER_TRIP, buf.readUnsignedInt());
+ }
+
+ if (BitUtil.check(mask, 21)) {
+ position.set(Position.KEY_ODOMETER, buf.readUnsignedInt());
+ }
+
+ if (BitUtil.check(mask, 22)) {
+ buf.skipBytes(6); // time of message generation
+ }
+
+ if (BitUtil.check(mask, 24)) {
+ position.set(Position.KEY_POWER, buf.readUnsignedShort() * 0.001);
+ }
+
+ if (BitUtil.check(mask, 25)) {
+ buf.skipBytes(18); // gps overspeed
+ }
+
+ if (BitUtil.check(mask, 26)) {
+ buf.skipBytes(54); // cell information
+ }
+
+ if (BitUtil.check(mask, 28)) {
+ position.set(Position.KEY_INDEX, buf.readUnsignedShort());
+ }
+
+ return position;
+ }
+
+ return null;
+ }
+
+}