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Diffstat (limited to 'src/main/java/org/traccar/protocol/OrionProtocolDecoder.java')
-rw-r--r--src/main/java/org/traccar/protocol/OrionProtocolDecoder.java115
1 files changed, 115 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/OrionProtocolDecoder.java b/src/main/java/org/traccar/protocol/OrionProtocolDecoder.java
new file mode 100644
index 000000000..af819989e
--- /dev/null
+++ b/src/main/java/org/traccar/protocol/OrionProtocolDecoder.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2014 - 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.DateBuilder;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.util.LinkedList;
+import java.util.List;
+
+public class OrionProtocolDecoder extends BaseProtocolDecoder {
+
+ public OrionProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ }
+
+ public static final int MSG_USERLOG = 0;
+ public static final int MSG_SYSLOG = 3;
+
+ private static void sendResponse(Channel channel, ByteBuf buf) {
+ if (channel != null) {
+ ByteBuf response = Unpooled.buffer(4);
+ response.writeByte('*');
+ response.writeShort(buf.getUnsignedShort(buf.writerIndex() - 2));
+ response.writeByte(buf.getUnsignedByte(buf.writerIndex() - 3));
+ channel.writeAndFlush(new NetworkMessage(response, channel.remoteAddress()));
+ }
+ }
+
+ private static double convertCoordinate(int raw) {
+ int degrees = raw / 1000000;
+ double minutes = (raw % 1000000) / 10000.0;
+ return degrees + minutes / 60;
+ }
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ ByteBuf buf = (ByteBuf) msg;
+
+ buf.skipBytes(2); // header
+ int type = buf.readUnsignedByte() & 0x0f;
+
+ if (type == MSG_USERLOG) {
+
+ int header = buf.readUnsignedByte();
+
+ if ((header & 0x40) != 0) {
+ sendResponse(channel, buf);
+ }
+
+ DeviceSession deviceSession = getDeviceSession(
+ channel, remoteAddress, String.valueOf(buf.readUnsignedInt()));
+ if (deviceSession == null) {
+ return null;
+ }
+
+ List<Position> positions = new LinkedList<>();
+
+ for (int i = 0; i < (header & 0x0f); i++) {
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ position.set(Position.KEY_EVENT, buf.readUnsignedByte());
+ buf.readUnsignedByte(); // length
+ position.set(Position.KEY_FLAGS, buf.readUnsignedShortLE());
+
+ position.setLatitude(convertCoordinate(buf.readIntLE()));
+ position.setLongitude(convertCoordinate(buf.readIntLE()));
+ position.setAltitude(buf.readShortLE() / 10.0);
+ position.setCourse(buf.readUnsignedShortLE());
+ position.setSpeed(buf.readUnsignedShortLE() * 0.0539957);
+
+ DateBuilder dateBuilder = new DateBuilder()
+ .setDate(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte())
+ .setTime(buf.readUnsignedByte(), buf.readUnsignedByte(), buf.readUnsignedByte());
+ position.setTime(dateBuilder.getDate());
+
+ int satellites = buf.readUnsignedByte();
+ position.setValid(satellites >= 3);
+ position.set(Position.KEY_SATELLITES, satellites);
+
+ positions.add(position);
+ }
+
+ return positions;
+ }
+
+ return null;
+ }
+
+}