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Diffstat (limited to 'src/main/java/org/traccar/protocol/BoxProtocolDecoder.java')
-rw-r--r--src/main/java/org/traccar/protocol/BoxProtocolDecoder.java108
1 files changed, 108 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/protocol/BoxProtocolDecoder.java b/src/main/java/org/traccar/protocol/BoxProtocolDecoder.java
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+++ b/src/main/java/org/traccar/protocol/BoxProtocolDecoder.java
@@ -0,0 +1,108 @@
+/*
+ * Copyright 2014 - 2019 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.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.NetworkMessage;
+import org.traccar.Protocol;
+import org.traccar.helper.BitUtil;
+import org.traccar.helper.Parser;
+import org.traccar.helper.PatternBuilder;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Position;
+
+import java.net.SocketAddress;
+import java.util.regex.Pattern;
+
+public class BoxProtocolDecoder extends BaseProtocolDecoder {
+
+ public BoxProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ }
+
+ private static final Pattern PATTERN = new PatternBuilder()
+ .text("L,")
+ .number("(dd)(dd)(dd)") // date (yymmdd)
+ .number("(dd)(dd)(dd),") // time (hhmmss)
+ .text("G,")
+ .number("(-?d+.d+),") // latitude
+ .number("(-?d+.d+),") // longitude
+ .number("(d+.?d*),") // speed
+ .number("(d+.?d*),") // course
+ .number("(d+.?d*),") // distance
+ .number("(d+),") // event
+ .number("(d+)") // status
+ .any()
+ .compile();
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ String sentence = (String) msg;
+
+ if (sentence.startsWith("H,")) {
+
+ int index = sentence.indexOf(',', 2) + 1;
+ String id = sentence.substring(index, sentence.indexOf(',', index));
+ getDeviceSession(channel, remoteAddress, id);
+
+ } else if (sentence.startsWith("E,")) {
+
+ if (channel != null) {
+ channel.writeAndFlush(new NetworkMessage("A," + sentence.substring(2) + "\r", remoteAddress));
+ }
+
+ } else if (sentence.startsWith("L,")) {
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
+ if (deviceSession == null) {
+ return null;
+ }
+
+ Parser parser = new Parser(PATTERN, sentence);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ position.setTime(parser.nextDateTime());
+
+ position.setLatitude(parser.nextDouble());
+ position.setLongitude(parser.nextDouble());
+ position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble()));
+ position.setCourse(parser.nextDouble());
+
+ position.set(Position.KEY_ODOMETER_TRIP, parser.nextDouble() * 1000);
+ position.set(Position.KEY_EVENT, parser.next());
+
+ int status = parser.nextInt();
+ position.set(Position.KEY_IGNITION, BitUtil.check(status, 0));
+ position.set(Position.KEY_MOTION, BitUtil.check(status, 1));
+ position.setValid(!BitUtil.check(status, 2));
+ position.set(Position.KEY_STATUS, status);
+
+ return position;
+ }
+
+ return null;
+ }
+
+}