diff options
Diffstat (limited to 'src/org/traccar/protocol')
| -rw-r--r-- | src/org/traccar/protocol/EnforaProtocolDecoder.java | 129 |
1 files changed, 50 insertions, 79 deletions
diff --git a/src/org/traccar/protocol/EnforaProtocolDecoder.java b/src/org/traccar/protocol/EnforaProtocolDecoder.java index ef34d6607..4a30b9af2 100644 --- a/src/org/traccar/protocol/EnforaProtocolDecoder.java +++ b/src/org/traccar/protocol/EnforaProtocolDecoder.java @@ -1,5 +1,5 @@ /* - * Copyright 2012 - 2014 Anton Tananaev (anton.tananaev@gmail.com) + * Copyright 2012 - 2015 Anton Tananaev (anton.tananaev@gmail.com) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -17,14 +17,14 @@ package org.traccar.protocol; import java.net.SocketAddress; import java.nio.charset.Charset; -import java.util.Calendar; -import java.util.TimeZone; -import java.util.regex.Matcher; import java.util.regex.Pattern; import org.jboss.netty.buffer.ChannelBuffer; +import org.jboss.netty.buffer.ChannelBufferIndexFinder; import org.jboss.netty.channel.Channel; import org.traccar.BaseProtocolDecoder; -import org.traccar.helper.Log; +import org.traccar.helper.DateBuilder; +import org.traccar.helper.Parser; +import org.traccar.helper.PatternBuilder; import org.traccar.helper.StringFinder; import org.traccar.model.Position; @@ -34,18 +34,19 @@ public class EnforaProtocolDecoder extends BaseProtocolDecoder { super(protocol); } - private static final Pattern PATTERN = Pattern.compile( - "GPRMC," + - "(\\d{2})(\\d{2})(\\d{2}).(\\d+)," + // Time (HHMMSS.SS) - "([AV])," + // Validity - "(\\d{2})(\\d{2}.\\d+)," + // Latitude (DDMM.MMMMMM) - "([NS])," + - "(\\d{3})(\\d{2}.\\d+)," + // Longitude (DDDMM.MMMMMM) - "([EW])," + - "(\\d+.\\d+)?," + // Speed - "(\\d+.\\d+)?," + // Course - "(\\d{2})(\\d{2})(\\d{2})," + // Date (DDMMYY) - ".*[\r\n\u0000]*"); + private static final Pattern PATTERN = new PatternBuilder() + .text("GPRMC,") + .number("(dd)(dd)(dd).(d+),") // time + .expression("([AV]),") // validity + .number("(dd)(dd.d+),") // latitude + .expression("([NS]),") + .number("(ddd)(dd.d+),") // longitude + .expression("([EW]),") + .number("(d+.d+)?,") // speed + .number("(d+.d+)?,") // course + .number("(dd)(dd)(dd),") // date (ddmmyy) + .any() + .compile(); public static final int IMEI_LENGTH = 15; @@ -56,88 +57,58 @@ public class EnforaProtocolDecoder extends BaseProtocolDecoder { ChannelBuffer buf = (ChannelBuffer) msg; - // Find IMEI (Modem ID) - String imei = null; - for (int first = -1, i = 0; i < buf.readableBytes(); i++) { - if (!Character.isDigit((char) buf.getByte(i))) { - first = i + 1; - } - - // Found digit string - if (i - first == IMEI_LENGTH - 1) { - imei = buf.toString(first, IMEI_LENGTH, Charset.defaultCharset()); - break; + // Find IMEI number + int index = buf.indexOf(buf.readerIndex(), buf.writerIndex(), new ChannelBufferIndexFinder() { + @Override + public boolean find(ChannelBuffer buffer, int guessedIndex) { + if (buffer.writerIndex() - guessedIndex >= IMEI_LENGTH) { + for (int i = 0; i < IMEI_LENGTH; i++) { + if (!Character.isDigit((char) buffer.getByte(guessedIndex + i))) { + return false; + } + } + return true; + } + return false; } + }); + if (index == -1) { + return null; } - // Write log - if (imei == null) { - Log.warning("Enfora decoder failed to find IMEI"); + String imei = buf.toString(index, IMEI_LENGTH, Charset.defaultCharset()); + if (!identify(imei, channel)) { return null; } - // Find GPSMC string + // Find NMEA sentence int start = buf.indexOf(buf.readerIndex(), buf.writerIndex(), new StringFinder("GPRMC")); if (start == -1) { - // Message does not contain GPS data return null; } - String sentence = buf.toString(start, buf.readableBytes() - start, Charset.defaultCharset()); - // Parse message - Matcher parser = PATTERN.matcher(sentence); + String sentence = buf.toString(start, buf.readableBytes() - start, Charset.defaultCharset()); + Parser parser = new Parser(PATTERN, sentence); if (!parser.matches()) { return null; } - // Create new position Position position = new Position(); position.setProtocol(getProtocolName()); - Integer index = 1; - - // Get device by IMEI - if (!identify(imei, 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++))); - time.set(Calendar.MILLISECOND, Integer.parseInt(parser.group(index++)) * 10); - - // Validity - position.setValid(parser.group(index++).compareTo("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 - String course = parser.group(index++); - if (course != null) { - position.setCourse(Double.parseDouble(course)); - } + DateBuilder dateBuilder = new DateBuilder() + .setTime(parser.nextInt(), parser.nextInt(), parser.nextInt(), parser.nextInt()); + + position.setValid(parser.next().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()); - // 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()); return position; } |