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authorParveen Kumar Yadav <parveenkumardeeva@gmail.com>2018-04-13 10:47:42 +0530
committerGitHub <noreply@github.com>2018-04-13 10:47:42 +0530
commitd448823edd0e8a7833c79b980cfe9778b849843a (patch)
tree50ad1ab51b93915cff422a1834baa5a2c579fce8 /src/org/traccar/protocol/ContinentalProtocolDecoder.java
parent2c8392a0e16044905d983da56ab0919eadbb3858 (diff)
parent617393cf9f052298f7fb35f0c58138c87a6dd5c3 (diff)
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Merge pull request #1 from traccar/master
Bringing Fork Up to Date
Diffstat (limited to 'src/org/traccar/protocol/ContinentalProtocolDecoder.java')
-rw-r--r--src/org/traccar/protocol/ContinentalProtocolDecoder.java113
1 files changed, 113 insertions, 0 deletions
diff --git a/src/org/traccar/protocol/ContinentalProtocolDecoder.java b/src/org/traccar/protocol/ContinentalProtocolDecoder.java
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+++ b/src/org/traccar/protocol/ContinentalProtocolDecoder.java
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+/*
+ * Copyright 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 org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.jboss.netty.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.util.Date;
+
+public class ContinentalProtocolDecoder extends BaseProtocolDecoder {
+
+ public ContinentalProtocolDecoder(ContinentalProtocol protocol) {
+ super(protocol);
+ }
+
+ public static final int MSG_KEEPALIVE = 0x00;
+ public static final int MSG_STATUS = 0x02;
+ public static final int MSG_ACK = 0x06;
+ public static final int MSG_NACK = 0x15;
+
+ private void sendResponse(Channel channel, long serialNumber) {
+ if (channel != null) {
+ ChannelBuffer response = ChannelBuffers.dynamicBuffer();
+
+ response.writeByte('S');
+ response.writeByte('V');
+ response.writeShort(2 + 2 + 1 + 4 + 2); // length
+ response.writeByte(1); // version
+ response.writeInt((int) serialNumber);
+ response.writeByte(0); // product
+ response.writeByte(MSG_ACK);
+
+ channel.write(response);
+ }
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ ChannelBuffer buf = (ChannelBuffer) msg;
+
+ buf.skipBytes(2); // header
+ buf.readUnsignedShort(); // length
+ buf.readUnsignedByte(); // software version
+
+ long serialNumber = buf.readUnsignedInt();
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, String.valueOf(serialNumber));
+ if (deviceSession == null) {
+ return null;
+ }
+
+ sendResponse(channel, serialNumber);
+
+ buf.readUnsignedByte(); // product
+
+ int type = buf.readUnsignedByte();
+
+ if (type == MSG_STATUS) {
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ position.setFixTime(new Date(buf.readUnsignedInt() * 1000L));
+
+ buf.readUnsignedByte();
+ position.setLatitude(buf.readMedium() / 3600.0);
+
+ buf.readUnsignedByte();
+ position.setLongitude(buf.readMedium() / 3600.0);
+
+ position.setCourse(buf.readUnsignedShort());
+ position.setSpeed(UnitsConverter.knotsFromKph(buf.readUnsignedShort()));
+
+ position.setValid(buf.readUnsignedByte() > 0);
+
+ position.setDeviceTime(new Date(buf.readUnsignedInt() * 1000L));
+
+ position.set(Position.KEY_EVENT, buf.readUnsignedShort());
+ position.set(Position.KEY_INPUT, buf.readUnsignedShort());
+ position.set(Position.KEY_OUTPUT, buf.readUnsignedShort());
+ position.set(Position.KEY_BATTERY, buf.readUnsignedByte());
+ position.set(Position.KEY_DEVICE_TEMP, buf.readByte());
+
+ buf.readUnsignedShort(); // reserved
+
+ return position;
+
+ }
+
+ return null;
+ }
+
+}