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Diffstat (limited to 'src/org/traccar/protocol/EsealProtocolDecoder.java')
| -rw-r--r-- | src/org/traccar/protocol/EsealProtocolDecoder.java | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/src/org/traccar/protocol/EsealProtocolDecoder.java b/src/org/traccar/protocol/EsealProtocolDecoder.java new file mode 100644 index 000000000..39c0d94c2 --- /dev/null +++ b/src/org/traccar/protocol/EsealProtocolDecoder.java @@ -0,0 +1,157 @@ +/* + * Copyright 2018 Anton Tananaev (anton@traccar.org) + * + * 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 io.netty.channel.Channel; +import org.traccar.BaseProtocolDecoder; +import org.traccar.Context; +import org.traccar.DeviceSession; +import org.traccar.NetworkMessage; +import org.traccar.helper.Parser; +import org.traccar.helper.PatternBuilder; +import org.traccar.helper.UnitsConverter; +import org.traccar.model.Position; + +import java.net.SocketAddress; +import java.util.regex.Pattern; + +public class EsealProtocolDecoder extends BaseProtocolDecoder { + + private String config; + + public EsealProtocolDecoder(EsealProtocol protocol) { + super(protocol); + config = Context.getConfig().getString(getProtocolName() + ".config"); + } + + private static final Pattern PATTERN = new PatternBuilder() + .text("##S,") + .expression("[^,]+,") // device type + .number("(d+),") // device id + .number("d+,") // customer id + .expression("[^,]+,") // firmware version + .expression("([^,]+),") // type + .number("(d+),") // index + .number("(dddd)-(dd)-(dd),") // date + .number("(dd):(dd):(dd),") // time + .number("d+,") // interval + .expression("([AV]),") // validity + .number("(d+.d+)([NS]) ") // latitude + .number("(d+.d+)([EW]),") // longitude + .number("(d+),") // course + .number("(d+),") // speed + .expression("([^,]+),") // door + .number("(d+.d+),") // acceleration + .expression("([^,]+),") // nfc + .number("(d+.d+),") // battery + .number("(-?d+),") // rssi + .text("E##") + .compile(); + + private void sendResponse(Channel channel, String prefix, String type, String payload) { + if (channel != null) { + channel.writeAndFlush(new NetworkMessage( + prefix + type + "," + payload + ",E##\r\n", channel.remoteAddress())); + } + } + + private String decodeAlarm(String type) { + switch (type) { + case "Event-Door": + return Position.ALARM_DOOR; + case "Event-Shock": + return Position.ALARM_SHOCK; + case "Event-Drop": + return Position.ALARM_FALL_DOWN; + case "Event-Lock": + return Position.ALARM_LOCK; + case "Event-RC-Unlock": + return Position.ALARM_UNLOCK; + default: + return null; + } + } + + @Override + protected Object decode( + Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { + + String sentence = (String) msg; + Parser parser = new Parser(PATTERN, sentence); + if (!parser.matches()) { + return null; + } + + DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next()); + if (deviceSession == null) { + return null; + } + + Position position = new Position(getProtocolName()); + position.setDeviceId(deviceSession.getDeviceId()); + + String type = parser.next(); + String prefix = sentence.substring(0, sentence.indexOf(type)); + int index = parser.nextInt(); + + position.set(Position.KEY_INDEX, index); + position.set(Position.KEY_ALARM, decodeAlarm(type)); + + switch (type) { + case "Startup": + sendResponse(channel, prefix, type + " ACK", index + "," + config); + break; + case "Normal": + case "Button-Normal": + case "Termination": + case "Event-Door": + case "Event-Shock": + case "Event-Drop": + case "Event-Lock": + case "Event-RC-Unlock": + sendResponse(channel, prefix, type + " ACK", String.valueOf(index)); + break; + default: + break; + } + + position.setTime(parser.nextDateTime()); + position.setValid(parser.next().equals("A")); + position.setLatitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM)); + position.setLongitude(parser.nextCoordinate(Parser.CoordinateFormat.DEG_HEM)); + position.setCourse(parser.nextInt()); + position.setSpeed(UnitsConverter.knotsFromKph(parser.nextInt())); + + switch (parser.next()) { + case "Open": + position.set(Position.KEY_DOOR, true); + break; + case "Close": + position.set(Position.KEY_DOOR, false); + break; + default: + break; + } + + position.set(Position.KEY_ACCELERATION, parser.nextDouble()); + position.set("nfc", parser.next()); + position.set(Position.KEY_BATTERY, parser.nextDouble()); + position.set(Position.KEY_RSSI, parser.nextInt()); + + return position; + } + +} |