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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/TlvProtocolDecoder.java
parent79a129dd6327d932133d6b9a50190d3f4927bff9 (diff)
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Convert project to gradle
Diffstat (limited to 'src/main/java/org/traccar/protocol/TlvProtocolDecoder.java')
-rw-r--r--src/main/java/org/traccar/protocol/TlvProtocolDecoder.java110
1 files changed, 110 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/TlvProtocolDecoder.java b/src/main/java/org/traccar/protocol/TlvProtocolDecoder.java
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+++ b/src/main/java/org/traccar/protocol/TlvProtocolDecoder.java
@@ -0,0 +1,110 @@
+/*
+ * Copyright 2017 - 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.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.NetworkMessage;
+import org.traccar.Protocol;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.nio.charset.StandardCharsets;
+import java.util.Date;
+
+public class TlvProtocolDecoder extends BaseProtocolDecoder {
+
+ public TlvProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ }
+
+ private void sendResponse(Channel channel, SocketAddress remoteAddress, String type, String... arguments) {
+ if (channel != null) {
+ ByteBuf response = Unpooled.buffer();
+ response.writeCharSequence(type, StandardCharsets.US_ASCII);
+ for (String argument : arguments) {
+ response.writeByte(argument.length());
+ response.writeCharSequence(argument, StandardCharsets.US_ASCII);
+ }
+ response.writeByte(0);
+ channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
+ }
+ }
+
+ private String readArgument(ByteBuf buf) {
+ return buf.readSlice(buf.readUnsignedByte()).toString(StandardCharsets.US_ASCII);
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ ByteBuf buf = (ByteBuf) msg;
+
+ String type = buf.readSlice(2).toString(StandardCharsets.US_ASCII);
+
+ if (channel != null) {
+ switch (type) {
+ case "0A":
+ case "0C":
+ sendResponse(channel, remoteAddress, type);
+ break;
+ case "0B":
+ sendResponse(channel, remoteAddress, type, "1482202689", "10", "20", "15");
+ break;
+ case "0E":
+ case "0F":
+ sendResponse(channel, remoteAddress, type, "30", "Unknown");
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (type.equals("0E")) {
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, readArgument(buf));
+ if (deviceSession == null) {
+ return null;
+ }
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ position.setValid(true);
+ position.setTime(new Date(Long.parseLong(readArgument(buf)) * 1000));
+
+ readArgument(buf); // location identifier
+
+ position.setLongitude(Double.parseDouble(readArgument(buf)));
+ position.setLatitude(Double.parseDouble(readArgument(buf)));
+ position.setSpeed(UnitsConverter.knotsFromKph(Double.parseDouble(readArgument(buf))));
+ position.setCourse(Double.parseDouble(readArgument(buf)));
+
+ position.set(Position.KEY_SATELLITES, Integer.parseInt(readArgument(buf)));
+
+ return position;
+
+ }
+
+ return null;
+ }
+
+}