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Diffstat (limited to 'src/org/traccar/protocol')
| -rw-r--r-- | src/org/traccar/protocol/GlobalSatProtocolDecoder.java | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/src/org/traccar/protocol/GlobalSatProtocolDecoder.java b/src/org/traccar/protocol/GlobalSatProtocolDecoder.java new file mode 100644 index 000000000..f4aa94110 --- /dev/null +++ b/src/org/traccar/protocol/GlobalSatProtocolDecoder.java @@ -0,0 +1,178 @@ +/* + * 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.sql.ResultSet; +import java.util.Calendar; +import java.util.Properties; +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.AdvancedConnection; +import org.traccar.helper.Log; +import org.traccar.helper.NamedParameterStatement; +import org.traccar.model.Position; + +public class GlobalSatProtocolDecoder extends BaseProtocolDecoder { + + private String format0; + private String format1; + + public GlobalSatProtocolDecoder(ServerManager serverManager) { + super(serverManager); + + // Initialize format strings + Properties p = getServerManager().getProperties(); + if (p.contains("globalsat.format0")) { + format0 = p.getProperty("globalsat.format0"); + } else { + format0 = "TSPRXAB27GHKLMnaicz*U!"; + } + if (p.contains("globalsat.format1")) { + format1 = p.getProperty("globalsat.format1"); + } else { + format1 = "SARY*U!"; + } + } + + /** + * Regular expressions pattern + */ + /*static private Pattern pattern = Pattern.compile( + "\\$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*)?," + // Speed + "(\\d+\\.?\\d*)?," + // Course + "(\\d{2})(\\d{2})(\\d{2})" + // Date (DDMMYY) + ".+"); // Other (Checksumm)*/ + + // TODO: Acknowledgement + + @Override + protected Object decode( + ChannelHandlerContext ctx, Channel channel, Object msg) + throws Exception { + + String sentence = (String) msg; + + // Message type + String format; + if (sentence.startsWith("GSr")) { + format = format0; + } else if (sentence.startsWith("GSh")) { + format = format1; + } else { + return null; + } + + // TODO: check that message contains required parameters + + + + // Detect device ID + /*if (sentence.contains("$PGID")) { + String imei = sentence.substring(6, sentence.length() - 3); + try { + deviceId = getDataManager().getDeviceByImei(imei).getId(); + } catch(Exception error) { + Log.warning("Unknown device - " + imei); + } + } + + // Parse message + else if (sentence.contains("$GPRMC") && deviceId != null) { + + // Send response + if (channel != null) { + channel.write("OK1\r\n"); + } + + // Parse message + Matcher parser = pattern.matcher(sentence); + if (!parser.matches()) { + return null; + } + + // Create new position + Position position = new Position(); + position.setDeviceId(deviceId); + + Integer 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++))); + index += 1; // Skip milliseconds + + // 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()); + + // Altitude + position.setAltitude(0.0); + + return position; + }*/ + + return null; + } + +} |