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   1 /**
   2  * Copyright (c) 2010-2020 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.eep.Base._4BSMessage;
  20 import org.openhab.binding.enocean.internal.eep.EEPHelper;
  21 import org.openhab.binding.enocean.internal.messages.ERP1Message;
  22 import org.openhab.core.config.core.Configuration;
  23 import org.openhab.core.library.types.QuantityType;
  24 import org.openhab.core.library.unit.Units;
  25 import org.openhab.core.types.State;
  26 import org.openhab.core.types.UnDefType;
  27 import org.openhab.core.util.HexUtils;
  28
  29 /**
  30  *
  31  * @author Dominik Krickl-Vorreiter - Initial contribution
  32  */
  33 public abstract class A5_12 extends _4BSMessage {
  34     public A5_12(ERP1Message packet) {
  35         super(packet);
  36     }
  37
  38     protected State calcCumulativeValue(float value) {
  39         return new QuantityType<>(value, Units.ONE);
  40     }
  41
  42     protected State calcCurrentValue(float value) {
  43         return new QuantityType<>(value, Units.ONE);
  44     }
  45
  46     protected State getCumulativeValue() {
  47         byte db0 = getDB_0();
  48         boolean dt = getBit(db0, 2);
  49
  50         if (!dt) {
  51             byte div = (byte) (db0 & 0x03);
  52
  53             float factor = 1;
  54
  55             switch (div) {
  56                 case 0:
  57                     factor = 1;
  58                     break;
  59                 case 1:
  60                     factor /= 10;
  61                     break;
  62                 case 2:
  63                     factor /= 100;
  64                     break;
  65                 case 3:
  66                     factor /= 1000;
  67                     break;
  68                 default:
  69                     return UnDefType.UNDEF;
  70             }
  71
  72             float cumulativeValue = Long.parseLong(HexUtils.bytesToHex(new byte[] { getDB_3(), getDB_2(), getDB_1() }),
  73                     16) * factor;
  74             return calcCumulativeValue(cumulativeValue);
  75         }
  76
  77         return UnDefType.UNDEF;
  78     }
  79
  80     protected State getCurrentValue() {
  81         byte db0 = getDB_0();
  82         boolean dt = getBit(db0, 2);
  83
  84         if (dt) {
  85             byte div = (byte) (db0 & 0x03);
  86
  87             float factor = 1;
  88
  89             switch (div) {
  90                 case 0:
  91                     factor = 1;
  92                     break;
  93                 case 1:
  94                     factor /= 10;
  95                     break;
  96                 case 2:
  97                     factor /= 100;
  98                     break;
  99                 case 3:
 100                     factor /= 1000;
 101                     break;
 102                 default:
 103                     return UnDefType.UNDEF;
 104             }
 105
 106             float currentValue = Long.parseLong(HexUtils.bytesToHex(new byte[] { getDB_3(), getDB_2(), getDB_1() }), 16)
 107                     * factor;
 108
 109             return calcCurrentValue(currentValue);
 110         }
 111
 112         return UnDefType.UNDEF;
 113     }
 114
 115     @Override
 116     protected State convertToStateImpl(String channelId, String channelTypeId,
 117             Function<String, State> getCurrentStateFunc, Configuration config) {
 118         switch (channelId) {
 119             case CHANNEL_INSTANTPOWER:
 120             case CHANNEL_CURRENTFLOW:
 121             case CHANNEL_CURRENTNUMBER:
 122                 return getCurrentValue();
 123             case CHANNEL_TOTALUSAGE:
 124                 State value = getCumulativeValue();
 125                 State currentState = getCurrentStateFunc.apply(channelId);
 126                 return EEPHelper.validateTotalUsage(value, currentState, config);
 127             case CHANNEL_CUMULATIVEVALUE:
 128             case CHANNEL_COUNTER:
 129                 return getCumulativeValue();
 130         }
 131
 132         return UnDefType.UNDEF;
 133     }
 134 }