From e7c57a86e55868e3563e023a6dc70e7848c55d20 Mon Sep 17 00:00:00 2001 From: Anton Tananaev Date: Fri, 11 Nov 2011 13:46:52 +0000 Subject: --- .../protocol/gl200/Gl200ProtocolDecoder.java | 159 +++++++++++++++++++++ 1 file changed, 159 insertions(+) create mode 100644 src/org/traccar/protocol/gl200/Gl200ProtocolDecoder.java (limited to 'src/org/traccar/protocol/gl200/Gl200ProtocolDecoder.java') diff --git a/src/org/traccar/protocol/gl200/Gl200ProtocolDecoder.java b/src/org/traccar/protocol/gl200/Gl200ProtocolDecoder.java new file mode 100644 index 000000000..6d0e0a8d9 --- /dev/null +++ b/src/org/traccar/protocol/gl200/Gl200ProtocolDecoder.java @@ -0,0 +1,159 @@ +/* + * Copyright 2010 Anton Tananaev (anton@tananaev.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 net.sourceforge.opentracking.protocol.gl200; + +import java.util.Calendar; +import java.util.GregorianCalendar; +import java.util.TimeZone; +import java.util.Timer; +import java.util.TimerTask; +import java.util.regex.Pattern; +import java.util.regex.Matcher; +import org.jboss.netty.channel.Channel; +import org.jboss.netty.channel.ChannelHandlerContext; +import org.jboss.netty.handler.codec.oneone.OneToOneDecoder; +import net.sourceforge.opentracking.Position; +import net.sourceforge.opentracking.DataManager; +import org.jboss.netty.channel.ChannelEvent; +import org.jboss.netty.channel.ChannelState; +import org.jboss.netty.channel.ChannelStateEvent; + +/** + * GL200 tracker protocol decoder + */ +public class Gl200ProtocolDecoder extends OneToOneDecoder { + + /** + * Data manager + */ + private DataManager dataManager; + + /** + * Reset connection delay + */ + private Integer resetDelay; + + /** + * Init device table + */ + public Gl200ProtocolDecoder(DataManager dataManager, Integer resetDelay) { + this.dataManager = dataManager; + this.resetDelay = resetDelay; + } + + /** + * Regular expressions pattern + */ + static private Pattern pattern = Pattern.compile( + "\\+RESP:GT...," + + "\\d{6}," + // Protocol version + "(\\d{15})," + // IMEI + "[^,]*," + // Device name + "\\d," + // Report ID + "\\d," + // Report type + "\\d*," + // Number + "(\\d*)," + // GPS accuracy + "(\\d+.\\d)," + // Speed + "(\\d+)," + // Course + "(-?\\d+.\\d)," + // Altitude + "(-?\\d+.\\d+)," + // Longitude + "(-?\\d+.\\d+)," + // Latitude + "(\\d{4})(\\d{2})(\\d{2})" + // Date (YYYYMMDD) + "(\\d{2})(\\d{2})(\\d{2})," + // Time (HHMMSS) + "[^$]*"); + + /** + * Decode message + */ + 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(); + + Integer index = 1; + + // Get device by IMEI + String imei = parser.group(index++); + position.setDeviceId(dataManager.getDeviceByImei(imei).getId()); + + // Validity + position.setValid(Integer.valueOf(parser.group(index++)) == 0 ? false : true); + + // Position info + position.setSpeed(Double.valueOf(parser.group(index++))); + position.setCourse(Double.valueOf(parser.group(index++))); + position.setAltitude(Double.valueOf(parser.group(index++))); + position.setLongitude(Double.valueOf(parser.group(index++))); + position.setLatitude(Double.valueOf(parser.group(index++))); + + // Date + Calendar time = new GregorianCalendar(TimeZone.getTimeZone("UTC")); + time.clear(); + time.set(Calendar.YEAR, Integer.valueOf(parser.group(index++))); + time.set(Calendar.MONTH, Integer.valueOf(parser.group(index++)) - 1); + time.set(Calendar.DAY_OF_MONTH, Integer.valueOf(parser.group(index++))); + + // Time + 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++))); + position.setTime(time.getTime()); + + return position; + } + + /** + * Disconnect channel + */ + class DisconnectTask extends TimerTask { + private Channel channel; + + public DisconnectTask(Channel channel) { + this.channel = channel; + } + + public void run() { + channel.disconnect(); + } + } + + /** + * Handle connect event + */ + @Override + public void handleUpstream(ChannelHandlerContext ctx, ChannelEvent evt) throws Exception { + super.handleUpstream(ctx, evt); + + if (evt instanceof ChannelStateEvent) { + ChannelStateEvent event = (ChannelStateEvent) evt; + + if (event.getState() == ChannelState.CONNECTED && event.getValue() != null && resetDelay != 0) { + new Timer().schedule(new DisconnectTask(evt.getChannel()), resetDelay); + } + } + } + +} -- cgit v1.2.3