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authorAnton Tananaev <anton.tananaev@gmail.com>2019-03-31 22:35:39 -0700
committerAnton Tananaev <anton.tananaev@gmail.com>2019-03-31 22:35:39 -0700
commit59416923dcb3a756eaf532cc4259f2f6625c0762 (patch)
tree9082dae6616deac8fda432b7bfd80e4a52b6d9dc /src/main/java/org/traccar/protocol/YwtProtocolDecoder.java
parent79a129dd6327d932133d6b9a50190d3f4927bff9 (diff)
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Convert project to gradle
Diffstat (limited to 'src/main/java/org/traccar/protocol/YwtProtocolDecoder.java')
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diff --git a/src/main/java/org/traccar/protocol/YwtProtocolDecoder.java b/src/main/java/org/traccar/protocol/YwtProtocolDecoder.java
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+/*
+ * Copyright 2013 - 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.channel.Channel;
+import org.traccar.BaseProtocolDecoder;
+import org.traccar.DeviceSession;
+import org.traccar.NetworkMessage;
+import org.traccar.Protocol;
+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 YwtProtocolDecoder extends BaseProtocolDecoder {
+
+ public YwtProtocolDecoder(Protocol protocol) {
+ super(protocol);
+ }
+
+ private static final Pattern PATTERN = new PatternBuilder()
+ .expression("%(..),") // type
+ .number("(d+):") // unit identifier
+ .number("d+,") // subtype
+ .number("(dd)(dd)(dd)") // date (yymmdd)
+ .number("(dd)(dd)(dd),") // time (hhmmss)
+ .expression("([EW])")
+ .number("(ddd.d{6}),") // longitude
+ .expression("([NS])")
+ .number("(dd.d{6}),") // latitude
+ .number("(d+)?,") // altitude
+ .number("(d+),") // speed
+ .number("(d+),") // course
+ .number("(d+),") // satellite
+ .expression("([^,]+),") // report identifier
+ .expression("([-0-9a-fA-F]+)") // status
+ .any()
+ .compile();
+
+ @Override
+ protected Object decode(
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
+
+ String sentence = (String) msg;
+
+ // Synchronization
+ if (sentence.startsWith("%SN") && channel != null) {
+ int start = sentence.indexOf(':');
+ int end = start;
+ for (int i = 0; i < 4; i++) {
+ end = sentence.indexOf(',', end + 1);
+ }
+ if (end == -1) {
+ end = sentence.length();
+ }
+
+ channel.writeAndFlush(new NetworkMessage("%AT+SN=" + sentence.substring(start, end), remoteAddress));
+ return null;
+ }
+
+ Parser parser = new Parser(PATTERN, sentence);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ Position position = new Position(getProtocolName());
+
+ String type = parser.next();
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+ if (deviceSession == null) {
+ return null;
+ }
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ position.setTime(parser.nextDateTime());
+
+ position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG));
+ position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.HEM_DEG));
+ position.setAltitude(parser.nextDouble(0));
+ position.setSpeed(UnitsConverter.knotsFromKph(parser.nextDouble()));
+ position.setCourse(parser.nextDouble());
+
+ int satellites = parser.nextInt();
+ position.setValid(satellites != 0);
+ position.set(Position.KEY_SATELLITES, satellites);
+
+ String reportId = parser.next();
+
+ position.set(Position.KEY_STATUS, parser.next());
+
+ // Send response
+ if ((type.equals("KP") || type.equals("EP")) && channel != null) {
+ channel.writeAndFlush(new NetworkMessage("%AT+" + type + "=" + reportId + "\r\n", remoteAddress));
+ }
+
+ return position;
+ }
+
+}