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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.enocean.internal.eep.A5_12;
  14
  15 import static org.openhab.binding.enocean.internal.EnOceanBindingConstants.*;
  16
  17 import java.util.function.Function;
  18
  19 import org.eclipse.jdt.annotation.NonNullByDefault;
  20 import org.eclipse.jdt.annotation.Nullable;
  21 import org.openhab.binding.enocean.internal.config.EnOceanChannelTariffInfoConfig;
  22 import org.openhab.binding.enocean.internal.eep.Base._4BSMessage;
  23 import org.openhab.binding.enocean.internal.eep.EEPHelper;
  24 import org.openhab.binding.enocean.internal.messages.ERP1Message;
  25 import org.openhab.core.config.core.Configuration;
  26 import org.openhab.core.library.types.QuantityType;
  27 import org.openhab.core.library.unit.Units;
  28 import org.openhab.core.types.State;
  29 import org.openhab.core.types.UnDefType;
  30 import org.openhab.core.util.HexUtils;
  31
  32 /**
  33  *
  34  * @author Dominik Krickl-Vorreiter - Initial contribution
  35  */
  36 @NonNullByDefault
  37 public abstract class A5_12 extends _4BSMessage {
  38     public A5_12(ERP1Message packet) {
  39         super(packet);
  40     }
  41
  42     protected State calcCumulativeValue(float value) {
  43         return new QuantityType<>(value, Units.ONE);
  44     }
  45
  46     protected State calcCurrentValue(float value) {
  47         return new QuantityType<>(value, Units.ONE);
  48     }
  49
  50     protected State getCumulativeValue() {
  51         byte db0 = getDB0();
  52         boolean dt = getBit(db0, 2);
  53
  54         if (!dt) {
  55             byte div = (byte) (db0 & 0x03);
  56
  57             float factor = 1;
  58
  59             switch (div) {
  60                 case 0:
  61                     factor = 1;
  62                     break;
  63                 case 1:
  64                     factor /= 10;
  65                     break;
  66                 case 2:
  67                     factor /= 100;
  68                     break;
  69                 case 3:
  70                     factor /= 1000;
  71                     break;
  72                 default:
  73                     return UnDefType.UNDEF;
  74             }
  75
  76             float cumulativeValue = Long.parseLong(HexUtils.bytesToHex(new byte[] { getDB3(), getDB2(), getDB1() }), 16)
  77                     * factor;
  78             return calcCumulativeValue(cumulativeValue);
  79         }
  80
  81         return UnDefType.UNDEF;
  82     }
  83
  84     protected State getCurrentValue() {
  85         byte db0 = getDB0();
  86         boolean dt = getBit(db0, 2);
  87
  88         if (dt) {
  89             byte div = (byte) (db0 & 0x03);
  90
  91             float factor = 1;
  92
  93             switch (div) {
  94                 case 0:
  95                     factor = 1;
  96                     break;
  97                 case 1:
  98                     factor /= 10;
  99                     break;
 100                 case 2:
 101                     factor /= 100;
 102                     break;
 103                 case 3:
 104                     factor /= 1000;
 105                     break;
 106                 default:
 107                     return UnDefType.UNDEF;
 108             }
 109
 110             float currentValue = Long.parseLong(HexUtils.bytesToHex(new byte[] { getDB3(), getDB2(), getDB1() }), 16)
 111                     * factor;
 112
 113             return calcCurrentValue(currentValue);
 114         }
 115
 116         return UnDefType.UNDEF;
 117     }
 118
 119     protected int getTariffInfo() {
 120         return ((getDB0() >>> 4) & 0xff);
 121     }
 122
 123     @Override
 124     protected State convertToStateImpl(String channelId, String channelTypeId,
 125             Function<String, @Nullable State> getCurrentStateFunc, Configuration config) {
 126         EnOceanChannelTariffInfoConfig c = config.as(EnOceanChannelTariffInfoConfig.class);
 127         if (c.tariff != getTariffInfo()) {
 128             return UnDefType.UNDEF;
 129         }
 130
 131         switch (channelTypeId) {
 132             case CHANNEL_INSTANTPOWER:
 133             case CHANNEL_CURRENTFLOW:
 134             case CHANNEL_CURRENTNUMBER:
 135                 return getCurrentValue();
 136             case CHANNEL_TOTALUSAGE:
 137                 State value = getCumulativeValue();
 138                 State currentState = getCurrentStateFunc.apply(channelId);
 139                 return EEPHelper.validateTotalUsage(value, currentState, config);
 140             case CHANNEL_CUMULATIVEVALUE:
 141             case CHANNEL_COUNTER:
 142                 return getCumulativeValue();
 143         }
 144
 145         return UnDefType.UNDEF;
 146     }
 147 }