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   1 /**
   2  * Copyright (c) 2010-2023 Contributors to the openHAB project
   3  *
   4  * See the NOTICE file(s) distributed with this work for additional
   5  * information.
   6  *
   7  * This program and the accompanying materials are made available under the
   8  * terms of the Eclipse Public License 2.0 which is available at
   9  * http://www.eclipse.org/legal/epl-2.0
  10  *
  11  * SPDX-License-Identifier: EPL-2.0
  12  */
  13 package org.openhab.binding.jeelink.internal.lacrosse;
  14
  15 import java.util.regex.Matcher;
  16 import java.util.regex.Pattern;
  17
  18 import org.openhab.binding.jeelink.internal.JeeLinkReadingConverter;
  19 import org.slf4j.Logger;
  20 import org.slf4j.LoggerFactory;
  21
  22 /**
  23  * Converter for converting a line read from a LaCrosseITPlusReader sketch to a Tx22Reading.
  24  *
  25  * @author Volker Bier - Initial contribution
  26  */
  27 public class Tx22ReadingConverter implements JeeLinkReadingConverter<Tx22Reading> {
  28     private static final Pattern LINE_P = Pattern.compile(
  29             "OK\\s+WS\\s+([0-9]+)\\s+([0-9]+)\\s+([0-9]+)\\s+([0-9]+)\\s+([0-9]+)\\s+([0-9]+)\\s+([0-9]+)\\s+([0-9]+)\\s+([0-9]+)\\s+([0-9]+)\\s+([0-9]+)\\s+([0-9]+)\\s+([0-9]+)\\s+([0-9]+)(?:\\s+([0-9]+)\\s+([0-9]+))?");
  30
  31     private final Logger logger = LoggerFactory.getLogger(Tx22ReadingConverter.class);
  32
  33     @Override
  34     public Tx22Reading createReading(String inputLine) {
  35         // parse lines only if we have registered listeners
  36         if (inputLine != null) {
  37             Matcher matcher = LINE_P.matcher(inputLine);
  38             if (matcher.matches()) {
  39                 /**
  40                  * Format
  41                  * 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
  42                  * -------------------------------------------------------------------
  43                  * OK WS 14 1 4 208 53 0 0 7 8 0 29 0 31 1 4 1 I D=0E 23.2°C 52%rH 0mm Dir.: 180.0° Wind:2.9m/s
  44                  * Gust:3.1m/s new Batt. 1025 hPa
  45                  * OK WS ID XXX TTT TTT HHH RRR RRR DDD DDD SSS SSS GGG GGG FFF PPP PPP
  46                  * | | | | | | | | | | | | | | | | | |-- Pressure LSB (optional, FF/FF = none)
  47                  * | | | | | | | | | | | | | | | | |------ Pressure MSB (optional)
  48                  * | | | | | | | | | | | | | | | |---------- Flags *
  49                  * | | | | | | | | | | | | | | |-------------- WindGust * 10 LSB (0.0 ... 50.0 m/s) FF/FF = none
  50                  * | | | | | | | | | | | | | |------------------ WindGust * 10 MSB
  51                  * | | | | | | | | | | | | |---------------------- WindSpeed * 10 LSB(0.0 ... 50.0 m/s) FF/FF = none
  52                  * | | | | | | | | | | | |-------------------------- WindSpeed * 10 MSB
  53                  * | | | | | | | | | | |------------------------------ WindDirection * 10 LSB (0.0 ... 365.0 Degrees)
  54                  * FF/FF = none
  55                  * | | | | | | | | | |---------------------------------- WindDirection * 10 MSB
  56                  * | | | | | | | | |-------------------------------------- Rain * 0.5mm LSB (0 ... 9999 mm) FF/FF = none
  57                  * | | | | | | | |------------------------------------------ Rain * 0.5mm MSB
  58                  * | | | | | | |---------------------------------------------- Humidity (1 ... 99 %rH) FF = none
  59                  * | | | | | |-------------------------------------------------- Temp * 10 + 1000 LSB (-40 ... +60 °C)
  60                  * FF/FF = none
  61                  * | | | | |------------------------------------------------------ Temp * 10 + 1000 MSB
  62                  * | | | |---------------------------------------------------------- Sensor type (1=TX22, 2=NodeSensor)
  63                  * | | |------------------------------------------------------------- Sensor ID (0 ... 63)
  64                  * | |---------------------------------------------------------------- fix "WS"
  65                  * |------------------------------------------------------------------- fix "OK"
  66                  *
  67                  * Flags: 128 64 32 16 8 4 2 1
  68                  * | | |
  69                  * | | |-- New battery
  70                  * | |------ ERROR
  71                  * |---------- Low battery
  72                  */
  73
  74                 logger.trace("Creating reading from: {}", inputLine);
  75
  76                 int sensorId = Integer.parseInt(matcher.group(1));
  77                 int type = Integer.parseInt(matcher.group(2));
  78
  79                 Float temperature = "255".equals(matcher.group(3)) ? null
  80                         : (float) (Integer.parseInt(matcher.group(3)) * 256 + Integer.parseInt(matcher.group(4)) - 1000)
  81                                 / 10;
  82
  83                 Integer humidity = "255".equals(matcher.group(5)) ? null : Integer.parseInt(matcher.group(5));
  84
  85                 Integer rain = "255".equals(matcher.group(6)) ? null
  86                         : (int) ((Integer.parseInt(matcher.group(6)) * 256 + Integer.parseInt(matcher.group(7))) * 0.5);
  87
  88                 Float windDirection = "255".equals(matcher.group(8)) ? null
  89                         : (Integer.parseInt(matcher.group(8)) * 256 + Integer.parseInt(matcher.group(9))) / 10f;
  90                 Float windSpeed = "255".equals(matcher.group(10)) ? null
  91                         : (Integer.parseInt(matcher.group(10)) * 256 + Integer.parseInt(matcher.group(11))) / 10f;
  92                 Float windGust = "255".equals(matcher.group(12)) ? null
  93                         : (Integer.parseInt(matcher.group(12)) * 256 + Integer.parseInt(matcher.group(13))) / 10f;
  94
  95                 int flags = Integer.parseInt(matcher.group(14));
  96                 boolean batteryNew = (flags & (byte) 1) > 0;
  97                 boolean batteryLow = (flags & (byte) 4) > 0;
  98
  99                 Integer pressure = null;
 100                 if (matcher.groupCount() > 14 && matcher.group(15) != null && !"255".equals(matcher.group(15))) {
 101                     pressure = Integer.parseInt(matcher.group(15)) * 256 + Integer.parseInt(matcher.group(16));
 102                 }
 103
 104                 return new Tx22Reading(sensorId, type, 0, temperature, humidity, batteryNew, batteryLow, rain,
 105                         windDirection, windSpeed, windGust, pressure);
 106             }
 107         }
 108
 109         return null;
 110     }
 111 }