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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.lutron.internal.radiora.handler;
  14
  15 import java.util.concurrent.atomic.AtomicBoolean;
  16 import java.util.concurrent.atomic.AtomicInteger;
  17
  18 import org.openhab.binding.lutron.internal.LutronBindingConstants;
  19 import org.openhab.binding.lutron.internal.radiora.config.DimmerConfig;
  20 import org.openhab.binding.lutron.internal.radiora.protocol.LocalZoneChangeFeedback;
  21 import org.openhab.binding.lutron.internal.radiora.protocol.RadioRAFeedback;
  22 import org.openhab.binding.lutron.internal.radiora.protocol.SetDimmerLevelCommand;
  23 import org.openhab.binding.lutron.internal.radiora.protocol.SetSwitchLevelCommand;
  24 import org.openhab.binding.lutron.internal.radiora.protocol.ZoneMapFeedback;
  25 import org.openhab.core.library.types.OnOffType;
  26 import org.openhab.core.library.types.PercentType;
  27 import org.openhab.core.thing.ChannelUID;
  28 import org.openhab.core.thing.Thing;
  29 import org.openhab.core.types.Command;
  30 import org.openhab.core.types.State;
  31
  32 /**
  33  * Handler for RadioRA dimmers
  34  *
  35  * @author Jeff Lauterbach - Initial Contribution
  36  *
  37  */
  38 public class DimmerHandler extends LutronHandler {
  39
  40     /**
  41      * Used to internally keep track of dimmer level. This helps us better respond
  42      * to external dimmer changes since RadioRA protocol does not send dimmer
  43      * levels in their messages.
  44      */
  45     private AtomicInteger lastKnownIntensity = new AtomicInteger(100);
  46
  47     private AtomicBoolean switchEnabled = new AtomicBoolean(false);
  48
  49     public DimmerHandler(Thing thing) {
  50         super(thing);
  51     }
  52
  53     @Override
  54     public void handleCommand(ChannelUID channelUID, Command command) {
  55         DimmerConfig config = getConfigAs(DimmerConfig.class);
  56
  57         if (LutronBindingConstants.CHANNEL_LIGHTLEVEL.equals(channelUID.getId())) {
  58             if (command instanceof PercentType) {
  59                 int intensity = ((PercentType) command).intValue();
  60
  61                 SetDimmerLevelCommand cmd = new SetDimmerLevelCommand(config.getZoneNumber(), intensity);
  62                 getRS232Handler().sendCommand(cmd);
  63
  64                 updateInternalState(intensity);
  65             }
  66
  67             if (command instanceof OnOffType) {
  68                 OnOffType onOffCmd = (OnOffType) command;
  69
  70                 SetSwitchLevelCommand cmd = new SetSwitchLevelCommand(config.getZoneNumber(), onOffCmd);
  71                 getRS232Handler().sendCommand(cmd);
  72
  73                 updateInternalState(onOffCmd);
  74
  75             }
  76         }
  77     }
  78
  79     @Override
  80     public void handleUpdate(ChannelUID channelUID, State newState) {
  81         if (LutronBindingConstants.CHANNEL_LIGHTLEVEL.equals(channelUID.getId())) {
  82             PercentType percent = (PercentType) newState.as(PercentType.class);
  83             updateInternalState(percent.intValue());
  84         }
  85     }
  86
  87     @Override
  88     public void handleFeedback(RadioRAFeedback feedback) {
  89         if (feedback instanceof LocalZoneChangeFeedback) {
  90             handleLocalZoneChangeFeedback((LocalZoneChangeFeedback) feedback);
  91         } else if (feedback instanceof ZoneMapFeedback) {
  92             handleZoneMapFeedback((ZoneMapFeedback) feedback);
  93         }
  94     }
  95
  96     private void handleZoneMapFeedback(ZoneMapFeedback feedback) {
  97         char value = feedback.getZoneValue(getConfigAs(DimmerConfig.class).getZoneNumber());
  98         if (value == '1') {
  99             turnDimmerOnToLastKnownIntensity();
 100         } else if (value == '0') {
 101             turnDimmerOff();
 102         }
 103     }
 104
 105     private void handleLocalZoneChangeFeedback(LocalZoneChangeFeedback feedback) {
 106         if (feedback.getZoneNumber() == getConfigAs(DimmerConfig.class).getZoneNumber()) {
 107             if (LocalZoneChangeFeedback.State.ON.equals(feedback.getState())) {
 108                 turnDimmerOnToLastKnownIntensity();
 109             } else if (LocalZoneChangeFeedback.State.OFF.equals(feedback.getState())) {
 110                 turnDimmerOff();
 111             }
 112
 113         }
 114     }
 115
 116     private void turnDimmerOnToLastKnownIntensity() {
 117         if (!switchEnabled.get()) {
 118             updateState(LutronBindingConstants.CHANNEL_LIGHTLEVEL, new PercentType(lastKnownIntensity.get()));
 119         }
 120         switchEnabled.set(true);
 121     }
 122
 123     private void turnDimmerOff() {
 124         updateState(LutronBindingConstants.CHANNEL_LIGHTLEVEL, PercentType.ZERO);
 125         switchEnabled.set(false);
 126     }
 127
 128     private void updateInternalState(int intensity) {
 129         if (intensity > 0) {
 130             lastKnownIntensity.set(intensity);
 131         }
 132         switchEnabled.set(intensity > 0);
 133     }
 134
 135     private void updateInternalState(OnOffType type) {
 136         switchEnabled.set(OnOffType.ON.equals(type));
 137     }
 138 }