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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.amazonechocontrol.internal.smarthome;
  14
  15 import static org.openhab.binding.amazonechocontrol.internal.smarthome.Constants.ITEM_TYPE_SWITCH;
  16
  17 import java.io.IOException;
  18 import java.util.List;
  19 import java.util.Locale;
  20
  21 import org.eclipse.jdt.annotation.NonNullByDefault;
  22 import org.eclipse.jdt.annotation.Nullable;
  23 import org.openhab.binding.amazonechocontrol.internal.AmazonEchoControlBindingConstants;
  24 import org.openhab.binding.amazonechocontrol.internal.Connection;
  25 import org.openhab.binding.amazonechocontrol.internal.jsons.JsonSmartHomeCapabilities.SmartHomeCapability;
  26 import org.openhab.binding.amazonechocontrol.internal.jsons.JsonSmartHomeDevices.SmartHomeDevice;
  27 import org.openhab.core.library.types.OnOffType;
  28 import org.openhab.core.thing.type.ChannelTypeUID;
  29 import org.openhab.core.types.Command;
  30 import org.openhab.core.types.StateDescription;
  31 import org.openhab.core.types.UnDefType;
  32
  33 import com.google.gson.JsonObject;
  34
  35 /**
  36  * The {@link HandlerPowerController} is responsible for the Alexa.PowerControllerInterface
  37  *
  38  * @author Lukas Knoeller - Initial contribution
  39  * @author Michael Geramb - Initial contribution
  40  */
  41 @NonNullByDefault
  42 public class HandlerPowerController extends HandlerBase {
  43     // Interface
  44     public static final String INTERFACE = "Alexa.PowerController";
  45
  46     // Channel types
  47     private static final ChannelTypeUID CHANNEL_TYPE_POWER_STATE = new ChannelTypeUID(
  48             AmazonEchoControlBindingConstants.BINDING_ID, "powerState");
  49
  50     // Channel definitions
  51     private static final ChannelInfo POWER_STATE = new ChannelInfo("powerState" /* propertyName */ ,
  52             "powerState" /* ChannelId */, CHANNEL_TYPE_POWER_STATE /* Channel Type */ ,
  53             ITEM_TYPE_SWITCH /* Item Type */);
  54
  55     @Override
  56     public String[] getSupportedInterface() {
  57         return new String[] { INTERFACE };
  58     }
  59
  60     @Override
  61     protected ChannelInfo @Nullable [] findChannelInfos(SmartHomeCapability capability, String property) {
  62         if (POWER_STATE.propertyName.equals(property)) {
  63             return new ChannelInfo[] { POWER_STATE };
  64         }
  65         return null;
  66     }
  67
  68     @Override
  69     public void updateChannels(String interfaceName, List<JsonObject> stateList, UpdateChannelResult result) {
  70         Boolean powerStateValue = null;
  71         for (JsonObject state : stateList) {
  72             if (POWER_STATE.propertyName.equals(state.get("name").getAsString())) {
  73                 String value = state.get("value").getAsString();
  74                 // For groups take true if all true
  75                 if ("ON".equals(value)) {
  76                     powerStateValue = true;
  77                 } else if (powerStateValue == null) {
  78                     powerStateValue = false;
  79                 }
  80
  81             }
  82         }
  83         updateState(POWER_STATE.channelId,
  84                 powerStateValue == null ? UnDefType.UNDEF : (powerStateValue ? OnOffType.ON : OnOffType.OFF));
  85     }
  86
  87     @Override
  88     public boolean handleCommand(Connection connection, SmartHomeDevice shd, String entityId,
  89             SmartHomeCapability[] capabilities, String channelId, Command command) throws IOException {
  90         if (channelId.equals(POWER_STATE.channelId)) {
  91             if (containsCapabilityProperty(capabilities, POWER_STATE.propertyName)) {
  92                 if (command.equals(OnOffType.ON)) {
  93                     connection.smartHomeCommand(entityId, "turnOn");
  94                     return true;
  95                 } else if (command.equals(OnOffType.OFF)) {
  96                     connection.smartHomeCommand(entityId, "turnOff");
  97                     return true;
  98                 }
  99             }
 100         }
 101         return false;
 102     }
 103
 104     @Override
 105     public @Nullable StateDescription findStateDescription(String channelId, StateDescription originalStateDescription,
 106             @Nullable Locale locale) {
 107         return null;
 108     }
 109 }