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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.openhab.binding.enocean.internal.config.EnOceanChannelTariffInfoConfig;
  20 import org.openhab.binding.enocean.internal.eep.Base._4BSMessage;
  21 import org.openhab.binding.enocean.internal.eep.EEPHelper;
  22 import org.openhab.binding.enocean.internal.messages.ERP1Message;
  23 import org.openhab.core.config.core.Configuration;
  24 import org.openhab.core.library.types.QuantityType;
  25 import org.openhab.core.library.unit.Units;
  26 import org.openhab.core.types.State;
  27 import org.openhab.core.types.UnDefType;
  28 import org.openhab.core.util.HexUtils;
  29
  30 /**
  31  *
  32  * @author Dominik Krickl-Vorreiter - Initial contribution
  33  */
  34 public abstract class A5_12 extends _4BSMessage {
  35     public A5_12(ERP1Message packet) {
  36         super(packet);
  37     }
  38
  39     protected State calcCumulativeValue(float value) {
  40         return new QuantityType<>(value, Units.ONE);
  41     }
  42
  43     protected State calcCurrentValue(float value) {
  44         return new QuantityType<>(value, Units.ONE);
  45     }
  46
  47     protected State getCumulativeValue() {
  48         byte db0 = getDB_0();
  49         boolean dt = getBit(db0, 2);
  50
  51         if (!dt) {
  52             byte div = (byte) (db0 & 0x03);
  53
  54             float factor = 1;
  55
  56             switch (div) {
  57                 case 0:
  58                     factor = 1;
  59                     break;
  60                 case 1:
  61                     factor /= 10;
  62                     break;
  63                 case 2:
  64                     factor /= 100;
  65                     break;
  66                 case 3:
  67                     factor /= 1000;
  68                     break;
  69                 default:
  70                     return UnDefType.UNDEF;
  71             }
  72
  73             float cumulativeValue = Long.parseLong(HexUtils.bytesToHex(new byte[] { getDB_3(), getDB_2(), getDB_1() }),
  74                     16) * factor;
  75             return calcCumulativeValue(cumulativeValue);
  76         }
  77
  78         return UnDefType.UNDEF;
  79     }
  80
  81     protected State getCurrentValue() {
  82         byte db0 = getDB_0();
  83         boolean dt = getBit(db0, 2);
  84
  85         if (dt) {
  86             byte div = (byte) (db0 & 0x03);
  87
  88             float factor = 1;
  89
  90             switch (div) {
  91                 case 0:
  92                     factor = 1;
  93                     break;
  94                 case 1:
  95                     factor /= 10;
  96                     break;
  97                 case 2:
  98                     factor /= 100;
  99                     break;
 100                 case 3:
 101                     factor /= 1000;
 102                     break;
 103                 default:
 104                     return UnDefType.UNDEF;
 105             }
 106
 107             float currentValue = Long.parseLong(HexUtils.bytesToHex(new byte[] { getDB_3(), getDB_2(), getDB_1() }), 16)
 108                     * factor;
 109
 110             return calcCurrentValue(currentValue);
 111         }
 112
 113         return UnDefType.UNDEF;
 114     }
 115
 116     protected int getTariffInfo() {
 117         return ((getDB_0() >>> 4) & 0xff);
 118     }
 119
 120     @Override
 121     protected State convertToStateImpl(String channelId, String channelTypeId,
 122             Function<String, State> getCurrentStateFunc, Configuration config) {
 123
 124         EnOceanChannelTariffInfoConfig c = config.as(EnOceanChannelTariffInfoConfig.class);
 125         if (c.tariff != getTariffInfo()) {
 126             return UnDefType.UNDEF;
 127         }
 128
 129         switch (channelTypeId) {
 130             case CHANNEL_INSTANTPOWER:
 131             case CHANNEL_CURRENTFLOW:
 132             case CHANNEL_CURRENTNUMBER:
 133                 return getCurrentValue();
 134             case CHANNEL_TOTALUSAGE:
 135                 State value = getCumulativeValue();
 136                 State currentState = getCurrentStateFunc.apply(channelId);
 137                 return EEPHelper.validateTotalUsage(value, currentState, config);
 138             case CHANNEL_CUMULATIVEVALUE:
 139             case CHANNEL_COUNTER:
 140                 return getCumulativeValue();
 141         }
 142
 143         return UnDefType.UNDEF;
 144     }
 145 }