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