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authorAnton Tananaev <anton.tananaev@gmail.com>2018-03-16 22:57:59 +1300
committerAnton Tananaev <anton.tananaev@gmail.com>2018-03-16 22:57:59 +1300
commit38c1ff9bccc1c417a0c2b412271aa7240a3b7db7 (patch)
treeddcfcc67df70499c7bfa82c4dab75fc9d8bede18 /src/org/traccar/protocol/ContinentalProtocolDecoder.java
parent34a5b8ceaff6617a8958ce04fb6c7f65d1d19979 (diff)
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Implement Continental RVS protocol
Diffstat (limited to 'src/org/traccar/protocol/ContinentalProtocolDecoder.java')
-rw-r--r--src/org/traccar/protocol/ContinentalProtocolDecoder.java93
1 files changed, 93 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.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;
+
+ @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
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, String.valueOf(buf.readUnsignedInt()));
+ if (deviceSession == null) {
+ return null;
+ }
+
+ 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;
+ }
+
+}