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Diffstat (limited to 'src/org/traccar/protocol/Xt7ProtocolDecoder.java')
| -rw-r--r-- | src/org/traccar/protocol/Xt7ProtocolDecoder.java | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/src/org/traccar/protocol/Xt7ProtocolDecoder.java b/src/org/traccar/protocol/Xt7ProtocolDecoder.java new file mode 100644 index 000000000..79f793d8a --- /dev/null +++ b/src/org/traccar/protocol/Xt7ProtocolDecoder.java @@ -0,0 +1,176 @@ +/* + * 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.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.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 Xt7ProtocolDecoder extends BaseProtocolDecoder { + + public Xt7ProtocolDecoder(ServerManager serverManager) { + super(serverManager); + } + + 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) + "[^\\*]+\\*[0-9a-fA-F]{2}," + + "(\\d+,\\d+)," + // IMSI + "([0-9a-fA-F]+,[0-9a-fA-F]+)," + // Cell + "(\\d+)," + // Signal quality + "(\\d+)," + // Battery + "([01]{4})," + // Flags + "([01]{4})," + // Sensors + "(\\d+)," + // Fuel + "(.+)?"); // Alarm + + @Override + protected Object decode( + ChannelHandlerContext ctx, Channel channel, Object msg) + throws Exception { + + ChannelBuffer buf = (ChannelBuffer) msg; + + buf.skipBytes(3); // STX + + // Create new position + Position position = new Position(); + StringBuilder extendedInfo = new StringBuilder("<protocol>xt7</protocol>"); + + // Get device by id + String id = buf.readBytes(16).toString(Charset.defaultCharset()).trim(); + try { + position.setDeviceId(getDataManager().getDeviceByImei(id).getId()); + } catch(Exception error) { + Log.warning("Unknown device - " + id); + return null; + } + + buf.readUnsignedByte(); // command + int length = buf.readUnsignedByte(); + + // Parse message + String sentence = buf.readBytes(length).toString(Charset.defaultCharset()); + Matcher parser = pattern.matcher(sentence); + if (!parser.matches()) { + return null; + } + + 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++))); + time.set(Calendar.MILLISECOND, 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 + position.setSpeed(Double.valueOf(parser.group(index++))); + + // 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()); + + // IMSI + extendedInfo.append("<imsi>"); + extendedInfo.append(parser.group(index++)); + extendedInfo.append("</imsi>"); + + // Cell + extendedInfo.append("<cell>"); + extendedInfo.append(parser.group(index++)); + extendedInfo.append("</cell>"); + + // GSM signal quality + extendedInfo.append("<gsm>"); + extendedInfo.append(parser.group(index++)); + extendedInfo.append("</gsm>"); + + // Battery + position.setPower(Double.valueOf(parser.group(index++))); + + // Flags + extendedInfo.append("<flags>"); + extendedInfo.append(parser.group(index++)); + extendedInfo.append("</flags>"); + + // Sensors + extendedInfo.append("<sensors>"); + extendedInfo.append(parser.group(index++)); + extendedInfo.append("</sensors>"); + + // Fuel + extendedInfo.append("<fuel>"); + extendedInfo.append(parser.group(index++)); + extendedInfo.append("</fuel>"); + + // Alarm + extendedInfo.append("<alarm>"); + extendedInfo.append(parser.group(index++)); + extendedInfo.append("</alarm>"); + + // Extended info + position.setExtendedInfo(extendedInfo.toString()); + + return position; + } + +} |