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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.plugwise.internal.protocol;
  14
  15 import static java.time.ZoneOffset.UTC;
  16 import static org.openhab.binding.plugwise.internal.protocol.field.MessageType.POWER_INFORMATION_RESPONSE;
  17
  18 import java.time.Duration;
  19 import java.time.ZonedDateTime;
  20 import java.util.regex.Matcher;
  21 import java.util.regex.Pattern;
  22
  23 import org.openhab.binding.plugwise.internal.protocol.field.Energy;
  24 import org.openhab.binding.plugwise.internal.protocol.field.MACAddress;
  25
  26 /**
  27  * Contains the real-time energy consumption of a relay device (Circle, Circle+, Stealth). This
  28  * message is the response of a {@link PowerInformationRequestMessage}.
  29  *
  30  * @author Wouter Born, Karel Goderis - Initial contribution
  31  */
  32 public class PowerInformationResponseMessage extends Message {
  33
  34     private static final Pattern PAYLOAD_PATTERN = Pattern.compile("(\\w{16})(\\w{4})(\\w{4})(\\w{8})(\\w{8})(\\w{4})");
  35     private static final double NANOSECONDS_CORRECTION_DIVISOR = 0.000046875; // 46875 divided by nanos per second
  36     private static final Duration ONE_HOUR = Duration.ofHours(1);
  37
  38     private Energy oneSecond;
  39     private Energy eightSecond;
  40     private Energy oneHourConsumed;
  41     private Energy oneHourProduced;
  42     private long nanosCorrection;
  43
  44     public PowerInformationResponseMessage(int sequenceNumber, String payload) {
  45         super(POWER_INFORMATION_RESPONSE, sequenceNumber, payload);
  46     }
  47
  48     public Energy getEightSecond() {
  49         return eightSecond;
  50     }
  51
  52     public Energy getOneHourConsumed() {
  53         return oneHourConsumed;
  54     }
  55
  56     public Energy getOneHourProduced() {
  57         return oneHourProduced;
  58     }
  59
  60     public Energy getOneSecond() {
  61         return oneSecond;
  62     }
  63
  64     @Override
  65     protected void parsePayload() {
  66         Matcher matcher = PAYLOAD_PATTERN.matcher(payload);
  67         if (matcher.matches()) {
  68             ZonedDateTime utcNow = ZonedDateTime.now(UTC);
  69             macAddress = new MACAddress(matcher.group(1));
  70             nanosCorrection = Math.round(Integer.parseInt(matcher.group(6), 16) / NANOSECONDS_CORRECTION_DIVISOR);
  71             oneSecond = new Energy(utcNow, (short) Integer.parseInt(matcher.group(2), 16),
  72                     Duration.ofSeconds(1, nanosCorrection));
  73             eightSecond = new Energy(utcNow, (short) Integer.parseInt(matcher.group(3), 16),
  74                     Duration.ofSeconds(8, nanosCorrection));
  75             oneHourConsumed = new Energy(utcNow, Long.parseLong(matcher.group(4), 16), ONE_HOUR);
  76             oneHourProduced = new Energy(utcNow, Long.parseLong(matcher.group(5), 16), ONE_HOUR);
  77         } else {
  78             throw new PlugwisePayloadMismatchException(POWER_INFORMATION_RESPONSE, PAYLOAD_PATTERN, payload);
  79         }
  80     }
  81 }