Implement FlexComm protocol

2 files changed, 164 insertions, 0 deletions

diff --git a/src/org/traccar/protocol/FlexCommProtocol.java b/src/org/traccar/protocol/FlexCommProtocol.java
new file mode 100644
index 000000000..5dba4421a
--- /dev/null
+++ b/src/org/traccar/protocol/FlexCommProtocol.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2017 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.bootstrap.ServerBootstrap;
+import org.jboss.netty.channel.ChannelPipeline;
+import org.jboss.netty.handler.codec.frame.FixedLengthFrameDecoder;
+import org.jboss.netty.handler.codec.string.StringDecoder;
+import org.jboss.netty.handler.codec.string.StringEncoder;
+import org.traccar.BaseProtocol;
+import org.traccar.TrackerServer;
+
+import java.util.List;
+
+public class FlexCommProtocol extends BaseProtocol {
+
+    public FlexCommProtocol() {
+        super("flexcomm");
+    }
+
+    @Override
+    public void initTrackerServers(List<TrackerServer> serverList) {
+        serverList.add(new TrackerServer(new ServerBootstrap(), getName()) {
+            @Override
+            protected void addSpecificHandlers(ChannelPipeline pipeline) {
+                pipeline.addLast("frameDecoder", new FixedLengthFrameDecoder(2 + 2 + 101 + 5));
+                pipeline.addLast("stringEncoder", new StringEncoder());
+                pipeline.addLast("stringDecoder", new StringDecoder());
+                pipeline.addLast("objectDecoder", new FlexCommProtocolDecoder(FlexCommProtocol.this));
+            }
+        });
+    }
+
+}
diff --git a/src/org/traccar/protocol/FlexCommProtocolDecoder.java b/src/org/traccar/protocol/FlexCommProtocolDecoder.java
new file mode 100644
index 000000000..e565bf0de
--- /dev/null
+++ b/src/org/traccar/protocol/FlexCommProtocolDecoder.java
@@ -0,0 +1,117 @@
+/*
+ * Copyright 2017 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.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.helper.Parser;
+import org.traccar.helper.PatternBuilder;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.CellTower;
+import org.traccar.model.Network;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.util.regex.Pattern;
+
+public class FlexCommProtocolDecoder extends BaseProtocolDecoder {
+
+    public FlexCommProtocolDecoder(FlexCommProtocol protocol) {
+        super(protocol);
+    }
+
+    private static final Pattern PATTERN = new PatternBuilder()
+            .text("7E")
+            .number("(dd)")                      // status
+            .number("(d{15})")                   // imei
+            .number("(dddd)(dd)(dd)")            // date (yyyymmdd)
+            .number("(dd)(dd)(dd)")              // time (hhmmss)
+            .expression("([01])")                // valid
+            .number("(d{9})")                    // latitude
+            .number("(d{10})")                   // longitude
+            .number("(d{4})")                    // altitude
+            .number("(ddd)")                     // speed
+            .number("(ddd)")                     // course
+            .number("(dd)")                      // satellites view
+            .number("(dd)")                      // satellites used
+            .number("(dd)")                      // rssi
+            .number("(ddd)")                     // mcc
+            .number("(ddd)")                     // mnc
+            .number("(x{6})")                    // lac
+            .number("(x{6})")                    // cid
+            .expression("([01]{3})")             // input
+            .expression("([01]{2})")             // output
+            .number("(ddd)")                     // fuel
+            .number("(d{4})")                    // temperature
+            .number("(ddd)")                     // battery
+            .number("(ddd)")                     // power
+            .any()
+            .compile();
+
+    private static double parseSignedValue(Parser parser, int decimalPoints) {
+        String stringValue = parser.next();
+        boolean negative = stringValue.charAt(0) == '1';
+        double value = Integer.parseInt(stringValue.substring(1)) * Math.pow(10, -decimalPoints);
+        return negative ? -value : value;
+    }
+
+    @Override
+    protected Object decode(
+            Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+        Parser parser = new Parser(PATTERN, (String) msg);
+        if (!parser.matches()) {
+            return null;
+        }
+
+        Position position = new Position();
+        position.setProtocol(getProtocolName());
+
+        position.set(Position.KEY_STATUS, parser.nextInt());
+
+        DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+        if (deviceSession == null) {
+            return null;
+        }
+        position.setDeviceId(deviceSession.getDeviceId());
+
+        position.setValid(parser.next().equals("1"));
+        position.setTime(parser.nextDateTime());
+        position.setLatitude(parseSignedValue(parser, 6));
+        position.setLongitude(parseSignedValue(parser, 6));
+        position.setAltitude(parseSignedValue(parser, 0));
+        position.setSpeed(UnitsConverter.knotsFromKph(parser.nextInt()));
+        position.setCourse(parser.nextDouble(0));
+
+        position.set(Position.KEY_SATELLITES_VISIBLE, parser.nextInt());
+        position.set(Position.KEY_SATELLITES, parser.nextInt());
+        position.set(Position.KEY_RSSI, parser.nextInt());
+
+        position.setNetwork(new Network(CellTower.from(
+                parser.nextInt(), parser.nextInt(), parser.nextHexInt(), parser.nextHexInt())));
+
+        position.set(Position.KEY_INPUT, parser.nextInt());
+        position.set(Position.KEY_OUTPUT, parser.nextInt());
+        position.set(Position.KEY_FUEL_LEVEL, parser.nextInt());
+        position.set(Position.PREFIX_TEMP + 1, parseSignedValue(parser, 0));
+        position.set(Position.KEY_BATTERY_LEVEL, parser.nextInt());
+        position.set(Position.KEY_POWER, parser.nextInt() * 0.1);
+
+        return position;
+    }
+
+}