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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.groheondus.internal.handler;
  14
  15 import java.io.IOException;
  16 import java.util.concurrent.TimeUnit;
  17
  18 import org.eclipse.jdt.annotation.NonNullByDefault;
  19 import org.eclipse.jdt.annotation.Nullable;
  20 import org.grohe.ondus.api.OndusService;
  21 import org.grohe.ondus.api.model.BaseAppliance;
  22 import org.grohe.ondus.api.model.Location;
  23 import org.grohe.ondus.api.model.Room;
  24 import org.openhab.binding.groheondus.internal.GroheOndusApplianceConfiguration;
  25 import org.openhab.core.thing.Bridge;
  26 import org.openhab.core.thing.ChannelUID;
  27 import org.openhab.core.thing.Thing;
  28 import org.openhab.core.thing.ThingStatus;
  29 import org.openhab.core.thing.ThingStatusDetail;
  30 import org.openhab.core.thing.binding.BaseThingHandler;
  31 import org.openhab.core.thing.binding.BridgeHandler;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35 /**
  36  * @author Florian Schmidt - Initial contribution
  37  */
  38 @NonNullByDefault
  39 public abstract class GroheOndusBaseHandler<T extends BaseAppliance, M> extends BaseThingHandler {
  40     private final Logger logger = LoggerFactory.getLogger(GroheOndusBaseHandler.class);
  41
  42     protected @Nullable GroheOndusApplianceConfiguration config;
  43
  44     private final int applianceType;
  45
  46     public GroheOndusBaseHandler(Thing thing, int applianceType) {
  47         super(thing);
  48         this.applianceType = applianceType;
  49     }
  50
  51     @Override
  52     public void initialize() {
  53         config = getConfigAs(GroheOndusApplianceConfiguration.class);
  54
  55         OndusService ondusService = getOndusService();
  56         if (ondusService == null) {
  57             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.BRIDGE_OFFLINE,
  58                     "No initialized OndusService available from bridge.");
  59             return;
  60         }
  61
  62         @Nullable
  63         T appliance = getAppliance(ondusService);
  64         if (appliance == null) {
  65             updateStatus(ThingStatus.UNKNOWN, ThingStatusDetail.COMMUNICATION_ERROR, "Could not load appliance");
  66             return;
  67         }
  68         int pollingInterval = getPollingInterval(appliance);
  69         scheduler.scheduleWithFixedDelay(this::updateChannels, 0, pollingInterval, TimeUnit.SECONDS);
  70
  71         updateStatus(ThingStatus.UNKNOWN);
  72     }
  73
  74     @Override
  75     public void channelLinked(ChannelUID channelUID) {
  76         super.channelLinked(channelUID);
  77
  78         OndusService ondusService = getOndusService();
  79         if (ondusService == null) {
  80             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.BRIDGE_OFFLINE,
  81                     "No initialized OndusService available from bridge.");
  82             return;
  83         }
  84
  85         @Nullable
  86         T appliance = getAppliance(ondusService);
  87         if (appliance == null) {
  88             return;
  89         }
  90         updateChannel(channelUID, appliance, getLastDataPoint(appliance));
  91     }
  92
  93     public void updateChannels() {
  94         OndusService ondusService = getOndusService();
  95         if (ondusService == null) {
  96             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.BRIDGE_OFFLINE,
  97                     "No initialized OndusService available from bridge.");
  98             return;
  99         }
 100
 101         @Nullable
 102         T appliance = getAppliance(ondusService);
 103         if (appliance == null) {
 104             return;
 105         }
 106
 107         M measurement = getLastDataPoint(appliance);
 108         getThing().getChannels().forEach(channel -> updateChannel(channel.getUID(), appliance, measurement));
 109
 110         updateStatus(ThingStatus.ONLINE);
 111     }
 112
 113     protected abstract M getLastDataPoint(T appliance);
 114
 115     protected abstract void updateChannel(ChannelUID channelUID, T appliance, M measurement);
 116
 117     public @Nullable OndusService getOndusService() {
 118         Bridge bridge = getBridge();
 119         if (bridge == null) {
 120             return null;
 121         }
 122         BridgeHandler handler = bridge.getHandler();
 123         if (!(handler instanceof GroheOndusAccountHandler)) {
 124             return null;
 125         }
 126         try {
 127             return ((GroheOndusAccountHandler) handler).getService();
 128         } catch (IllegalStateException e) {
 129             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.BRIDGE_OFFLINE);
 130             return null;
 131         }
 132     }
 133
 134     protected Room getRoom() {
 135         return new Room(config.roomId, getLocation());
 136     }
 137
 138     protected Location getLocation() {
 139         return new Location(config.locationId);
 140     }
 141
 142     protected @Nullable T getAppliance(OndusService ondusService) {
 143         try {
 144             BaseAppliance appliance = ondusService.getAppliance(getRoom(), config.applianceId).orElse(null);
 145             if (appliance.getType() != getType()) {
 146                 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
 147                         "Thing is not a GROHE SENSE Guard device.");
 148                 return null;
 149             }
 150             return (T) appliance;
 151         } catch (IOException e) {
 152             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, e.getMessage());
 153             logger.debug("Could not load appliance", e);
 154         }
 155         return null;
 156     }
 157
 158     protected abstract int getPollingInterval(T appliance);
 159
 160     private int getType() {
 161         return this.applianceType;
 162     }
 163 }