diff options
Diffstat (limited to 'src/org/traccar/protocol/MegastekProtocolDecoder.java')
| -rw-r--r-- | src/org/traccar/protocol/MegastekProtocolDecoder.java | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/src/org/traccar/protocol/MegastekProtocolDecoder.java b/src/org/traccar/protocol/MegastekProtocolDecoder.java new file mode 100644 index 000000000..77d24837a --- /dev/null +++ b/src/org/traccar/protocol/MegastekProtocolDecoder.java @@ -0,0 +1,182 @@ +/* + * Copyright 2013 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. + * 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 java.util.Calendar; +import java.util.TimeZone; +import java.util.regex.Matcher; +import java.util.regex.Pattern; +import org.jboss.netty.channel.Channel; +import org.jboss.netty.channel.ChannelHandlerContext; +import org.traccar.BaseProtocolDecoder; +import org.traccar.ServerManager; +import org.traccar.helper.Log; +import org.traccar.model.Position; + +public class MegastekProtocolDecoder extends BaseProtocolDecoder { + + public MegastekProtocolDecoder(ServerManager serverManager) { + super(serverManager); + } + + //STX,102110830074542,$GPRMC,114229.000,A,2238.2024,N,11401.9619,E,0.00,0.00,310811,,,A*64 + //,F,LowBattery,imei:012207005553885,03,113.1,Battery=24%,,1,460,01,2531,647E;57 + static private Pattern pattern = Pattern.compile( + "STX," + + "\\d+," + // Identifier (not IMEI) + "\\$GPRMC," + + "(\\d{2})(\\d{2})(\\d{2})\\.\\d+," + // Time (HHMMSS.SSS) + "([AV])," + // Validity + "(\\d{2})(\\d{2}\\.\\d+)," + // Latitude (DDMM.MMMM) + "([NS])," + + "(\\d{3})(\\d{2}\\.\\d+)," + // Longitude (DDDMM.MMMM) + "([EW])," + + "(\\d+\\.\\d{2})?," + // Speed + "(\\d+\\.\\d{2})?," + // Course + "(\\d{2})(\\d{2})(\\d{2})" + // Date (DDMMYY) + "[^\\*]+\\*[0-9a-fA-F]{2}," + // Checksumm + "[FL]," + // Flag + "([^,]*)," + // Alarm + "imei:(\\d+)," + // IMEI + "(\\d+)?," + // Satellites + "(\\d+\\.\\d+)," + // Altitude + "Battery=(\\d+)%,," + // Battery + "(\\d)?," + // Charger + "(\\d+)," + // MCC + "(\\d+)," + // MNC + "([0-9a-fA-F]+,[0-9a-fA-F]+);" + // Location code + ".+"); // Checksumm + + @Override + protected Object decode( + ChannelHandlerContext ctx, Channel channel, Object msg) + throws Exception { + + String sentence = (String) msg; + + // Parse message + Matcher parser = pattern.matcher(sentence); + if (!parser.matches()) { + return null; + } + + // Create new position + Position position = new Position(); + StringBuilder extendedInfo = new StringBuilder("<protocol>megastek</protocol>"); + int index = 1; + + // Time + Calendar time = Calendar.getInstance(TimeZone.getTimeZone("UTC")); + time.clear(); + time.set(Calendar.HOUR, Integer.valueOf(parser.group(index++))); + time.set(Calendar.MINUTE, Integer.valueOf(parser.group(index++))); + time.set(Calendar.SECOND, Integer.valueOf(parser.group(index++))); + + // Validity + position.setValid(parser.group(index++).compareTo("A") == 0 ? true : false); + + // Latitude + Double latitude = Double.valueOf(parser.group(index++)); + latitude += Double.valueOf(parser.group(index++)) / 60; + if (parser.group(index++).compareTo("S") == 0) latitude = -latitude; + position.setLatitude(latitude); + + // Longitude + Double lonlitude = Double.valueOf(parser.group(index++)); + lonlitude += Double.valueOf(parser.group(index++)) / 60; + if (parser.group(index++).compareTo("W") == 0) lonlitude = -lonlitude; + position.setLongitude(lonlitude); + + // Speed + String speed = parser.group(index++); + if (speed != null) { + position.setSpeed(Double.valueOf(speed)); + } else { + position.setSpeed(0.0); + } + + // Course + String course = parser.group(index++); + if (course != null) { + position.setCourse(Double.valueOf(course)); + } else { + position.setCourse(0.0); + } + + // Date + time.set(Calendar.DAY_OF_MONTH, Integer.valueOf(parser.group(index++))); + time.set(Calendar.MONTH, Integer.valueOf(parser.group(index++)) - 1); + time.set(Calendar.YEAR, 2000 + Integer.valueOf(parser.group(index++))); + position.setTime(time.getTime()); + + // Alarm + extendedInfo.append("<alarm>"); + extendedInfo.append(parser.group(index++)); + extendedInfo.append("</alarm>"); + + // IMEI + String imei = parser.group(index++); + try { + position.setDeviceId(getDataManager().getDeviceByImei(imei).getId()); + } catch(Exception error) { + Log.warning("Unknown device - " + imei); + return null; + } + + // Satellites + String satellites = parser.group(index++); + if (satellites != null) { + extendedInfo.append("<satellites>"); + extendedInfo.append(satellites); + extendedInfo.append("</satellites>"); + } + + // Altitude + position.setAltitude(Double.valueOf(parser.group(index++))); + + // Battery + position.setPower(Double.valueOf(parser.group(index++))); + + // Charger + String charger = parser.group(index++); + if (charger != null) { + extendedInfo.append("<charger>"); + extendedInfo.append(Integer.valueOf(charger) == 1); + extendedInfo.append("</charger>"); + } + + // MCC + extendedInfo.append("<mcc>"); + extendedInfo.append(parser.group(index++)); + extendedInfo.append("</mcc>"); + + // MNC + extendedInfo.append("<mnc>"); + extendedInfo.append(parser.group(index++)); + extendedInfo.append("</mnc>"); + + // LAC + extendedInfo.append("<lac>"); + extendedInfo.append(parser.group(index++)); + extendedInfo.append("</lac>"); + + // Extended info + position.setExtendedInfo(extendedInfo.toString()); + + return position; + } + +} |