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   1 /**
   2  * Copyright (c) 2010-2022 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.homematic.internal.converter.type;
  14
  15 import org.openhab.binding.homematic.internal.converter.ConverterException;
  16 import org.openhab.binding.homematic.internal.model.HmDatapoint;
  17 import org.openhab.binding.homematic.internal.model.HmInterface;
  18 import org.openhab.binding.homematic.internal.type.MetadataUtils;
  19 import org.openhab.core.library.types.IncreaseDecreaseType;
  20 import org.openhab.core.library.types.OnOffType;
  21 import org.openhab.core.library.types.PercentType;
  22 import org.openhab.core.library.types.UpDownType;
  23 import org.openhab.core.types.Command;
  24 import org.openhab.core.types.Type;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28 /**
  29  * Converts between a Homematic datapoint value and an openHAB PercentType.
  30  *
  31  * @author Gerhard Riegler - Initial contribution
  32  */
  33 public class PercentTypeConverter extends AbstractTypeConverter<PercentType> {
  34     private final Logger logger = LoggerFactory.getLogger(PercentTypeConverter.class);
  35
  36     @Override
  37     protected Object commandToBinding(Command command, HmDatapoint dp) throws ConverterException {
  38         if (command.getClass() == IncreaseDecreaseType.class) {
  39             PercentType type = convertFromBinding(dp);
  40
  41             int percent = type.intValue();
  42             percent += command.equals(IncreaseDecreaseType.INCREASE) ? 10 : -10;
  43             percent = (percent / 10) * 10;
  44             percent = Math.min(100, percent);
  45             percent = Math.max(0, percent);
  46             return convertToBinding(new PercentType(percent), dp);
  47         } else if (command.getClass() == OnOffType.class) {
  48             PercentType type = new PercentType(command.equals(OnOffType.ON) ? 100 : 0);
  49             return convertToBinding(type, dp);
  50         } else if (command.getClass() == UpDownType.class) {
  51             return convertToBinding(command.equals(UpDownType.UP) ? PercentType.ZERO : PercentType.HUNDRED, dp);
  52         } else {
  53             return super.commandToBinding(command, dp);
  54         }
  55     }
  56
  57     private double getCorrectedMaxValue(HmDatapoint dp) {
  58         double max = dp.getMaxValue().doubleValue();
  59         return (max == 1.01 && dp.getChannel().getDevice().getHmInterface() == HmInterface.HMIP ? 1.0d : max);
  60     }
  61
  62     @Override
  63     protected boolean toBindingValidation(HmDatapoint dp, Class<? extends Type> typeClass) {
  64         return dp.isNumberType() && dp.getMaxValue() != null && dp.getMinValue() != null
  65                 && dp.getChannel().getType() != null && typeClass.isAssignableFrom(PercentType.class);
  66     }
  67
  68     @Override
  69     protected Object toBinding(PercentType type, HmDatapoint dp) throws ConverterException {
  70         double maxValue = getCorrectedMaxValue(dp);
  71         Double number = (type.doubleValue() / 100) * maxValue;
  72
  73         if (MetadataUtils.isRollerShutter(dp)) {
  74             if (PercentType.HUNDRED.equals(type)) { // means DOWN
  75                 return dp.getMinValue().doubleValue();
  76             } else if (PercentType.ZERO.equals(type)) { // means UP
  77                 return maxValue;
  78             }
  79             return maxValue - number;
  80         }
  81         if (number < 0.0 || number > 100.0) {
  82             logger.warn("Percent value '{}' out of range, truncating value for {}", number, dp);
  83             number = number < 0.0 ? 0.0 : 100.0;
  84         }
  85         if (dp.isIntegerType()) {
  86             return number.intValue();
  87         }
  88         return round(number).doubleValue();
  89     }
  90
  91     @Override
  92     protected boolean fromBindingValidation(HmDatapoint dp) {
  93         return dp.isNumberType() && dp.getValue() instanceof Number && dp.getMaxValue() != null
  94                 && dp.getChannel().getType() != null;
  95     }
  96
  97     @Override
  98     protected PercentType fromBinding(HmDatapoint dp) throws ConverterException {
  99         Double number = ((Number) dp.getValue()).doubleValue();
 100         int percent = (int) (100 / getCorrectedMaxValue(dp) * number);
 101         if (percent > 100) {
 102             logger.warn("Percent value '{}' out of range, truncating value for {}", number, dp);
 103             percent = 100;
 104         }
 105         if (MetadataUtils.isRollerShutter(dp)) {
 106             percent = 100 - percent;
 107         }
 108         return new PercentType(percent);
 109     }
 110 }