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authorAnton Tananaev <anton.tananaev@gmail.com>2015-10-27 18:25:58 +1300
committerAnton Tananaev <anton.tananaev@gmail.com>2015-10-27 18:25:58 +1300
commitbb87125014363cd4f444fcafc85ff483146789a6 (patch)
treec89c271e9a500415f97c3573eb7f759f83add955
parent09deb7177affb859a876f152bd0b56ba2c9c6d4d (diff)
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Refactor Laipac protocol decoder
-rw-r--r--src/org/traccar/protocol/LaipacProtocolDecoder.java104
1 files changed, 41 insertions, 63 deletions
diff --git a/src/org/traccar/protocol/LaipacProtocolDecoder.java b/src/org/traccar/protocol/LaipacProtocolDecoder.java
index 57cf7d3b3..390588a6b 100644
--- a/src/org/traccar/protocol/LaipacProtocolDecoder.java
+++ b/src/org/traccar/protocol/LaipacProtocolDecoder.java
@@ -17,12 +17,16 @@ package org.traccar.protocol;
import java.net.SocketAddress;
import java.util.Calendar;
+import java.util.Date;
import java.util.TimeZone;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.jboss.netty.channel.Channel;
import org.traccar.BaseProtocolDecoder;
import org.traccar.helper.Checksum;
+import org.traccar.helper.DateBuilder;
+import org.traccar.helper.Parser;
+import org.traccar.helper.PatternBuilder;
import org.traccar.model.Position;
public class LaipacProtocolDecoder extends BaseProtocolDecoder {
@@ -31,90 +35,63 @@ public class LaipacProtocolDecoder extends BaseProtocolDecoder {
super(protocol);
}
- private static final Pattern PATTERN = Pattern.compile(
- "\\$AVRMC," +
- "([^,]+)," + // Identifier
- "(\\d{2})(\\d{2})(\\d{2})," + // Time (HHMMSS)
- "([AVRavr])," + // Validity
- "(\\d{2})(\\d{2}\\.\\d+)," + // Latitude (DDMM.MMMM)
- "([NS])," +
- "(\\d{3})(\\d{2}\\.\\d+)," + // Longitude (DDDMM.MMMM)
- "([EW])," +
- "(\\d+\\.\\d+)," + // Speed
- "(\\d+\\.\\d+)," + // Course
- "(\\d{2})(\\d{2})(\\d{2})," + // Date (DDMMYY)
- "(.)," + // Type
- "[^\\*]+\\*" +
- "(\\p{XDigit}{2})"); // Checksum
+ private static final Pattern PATTERN = new PatternBuilder()
+ .text("$AVRMC,")
+ .expression("([^,]+),") // identifier
+ .number("(dd)(dd)(dd),") // time
+ .expression("([AVRavr]),") // validity
+ .number("(dd)(dd.d+),") // latitude
+ .expression("([NS]),")
+ .number("(ddd)(dd.d+),") // longitude
+ .number("([EW]),")
+ .number("(d+.d+),") // speed
+ .number("(d+.d+),") // course
+ .number("(dd)(dd)(dd),") // date (ddmmyy)
+ .expression("(.),") // type
+ .expression("[^*]+").text("*")
+ .number("(xx)") // checksum
+ .compile();
@Override
protected Object decode(
- Channel channel, SocketAddress remoteAddress, Object msg)
- throws Exception {
+ Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
String sentence = (String) msg;
- // Heartbeat
if (sentence.startsWith("$ECHK") && channel != null) {
- channel.write(sentence + "\r\n");
+ channel.write(sentence + "\r\n"); // heartbeat
return null;
}
- // Parse message
- Matcher parser = PATTERN.matcher(sentence);
+ Parser parser = new Parser(PATTERN, sentence);
if (!parser.matches()) {
return null;
}
- // Create new position
Position position = new Position();
position.setProtocol(getProtocolName());
- Integer index = 1;
- // Identification
- if (!identify(parser.group(index++), channel)) {
+ if (!identify(parser.next(), channel)) {
return null;
}
position.setDeviceId(getDeviceId());
- // Time
- Calendar time = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
- time.clear();
- time.set(Calendar.HOUR_OF_DAY, Integer.parseInt(parser.group(index++)));
- time.set(Calendar.MINUTE, Integer.parseInt(parser.group(index++)));
- time.set(Calendar.SECOND, Integer.parseInt(parser.group(index++)));
-
- // Validity
- String status = parser.group(index++);
- position.setValid(status.compareToIgnoreCase("A") == 0);
-
- // Latitude
- Double latitude = Double.parseDouble(parser.group(index++));
- latitude += Double.parseDouble(parser.group(index++)) / 60;
- if (parser.group(index++).compareTo("S") == 0) latitude = -latitude;
- position.setLatitude(latitude);
-
- // Longitude
- Double longitude = Double.parseDouble(parser.group(index++));
- longitude += Double.parseDouble(parser.group(index++)) / 60;
- if (parser.group(index++).compareTo("W") == 0) longitude = -longitude;
- position.setLongitude(longitude);
-
- // Speed
- position.setSpeed(Double.parseDouble(parser.group(index++)));
-
- // Course
- position.setCourse(Double.parseDouble(parser.group(index++)));
-
- // Date
- time.set(Calendar.DAY_OF_MONTH, Integer.parseInt(parser.group(index++)));
- time.set(Calendar.MONTH, Integer.parseInt(parser.group(index++)) - 1);
- time.set(Calendar.YEAR, 2000 + Integer.parseInt(parser.group(index++)));
- position.setTime(time.getTime());
-
- // Response
- String type = parser.group(index++);
- String checksum = parser.group(index++);
+ DateBuilder dateBuilder = new DateBuilder()
+ .setTime(parser.nextInt(), parser.nextInt(), parser.nextInt());
+
+ String status = parser.next();
+ position.setValid(status.toUpperCase().equals("A"));
+
+ position.setLatitude(parser.nextCoordinate());
+ position.setLongitude(parser.nextCoordinate());
+ position.setSpeed(parser.nextDouble());
+ position.setCourse(parser.nextDouble());
+
+ dateBuilder.setDateReverse(parser.nextInt(), parser.nextInt(), parser.nextInt());
+ position.setTime(dateBuilder.getDate());
+
+ String type = parser.next();
+ String checksum = parser.next();
String response = null;
if (type.equals("0") && Character.isLowerCase(status.charAt(0))) {
@@ -131,6 +108,7 @@ public class LaipacProtocolDecoder extends BaseProtocolDecoder {
if (response != null && channel != null) {
channel.write(response + "\r\n");
}
+
return position;
}