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   1 /**
   2  * Copyright (c) 2010-2024 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.meater.internal.handler;
  14
  15 import static org.openhab.binding.meater.internal.MeaterBindingConstants.*;
  16
  17 import java.util.Collection;
  18 import java.util.Map;
  19 import java.util.Set;
  20 import java.util.concurrent.ConcurrentHashMap;
  21 import java.util.concurrent.ScheduledFuture;
  22 import java.util.concurrent.TimeUnit;
  23
  24 import org.eclipse.jdt.annotation.NonNullByDefault;
  25 import org.eclipse.jdt.annotation.Nullable;
  26 import org.eclipse.jetty.client.HttpClient;
  27 import org.openhab.binding.meater.internal.MeaterBridgeConfiguration;
  28 import org.openhab.binding.meater.internal.api.MeaterRestAPI;
  29 import org.openhab.binding.meater.internal.discovery.MeaterDiscoveryService;
  30 import org.openhab.binding.meater.internal.dto.MeaterProbeDTO;
  31 import org.openhab.core.i18n.LocaleProvider;
  32 import org.openhab.core.thing.Bridge;
  33 import org.openhab.core.thing.ChannelUID;
  34 import org.openhab.core.thing.ThingStatus;
  35 import org.openhab.core.thing.ThingStatusDetail;
  36 import org.openhab.core.thing.ThingTypeUID;
  37 import org.openhab.core.thing.binding.BaseBridgeHandler;
  38 import org.openhab.core.thing.binding.ThingHandlerService;
  39 import org.openhab.core.types.Command;
  40 import org.openhab.core.types.RefreshType;
  41 import org.slf4j.Logger;
  42 import org.slf4j.LoggerFactory;
  43
  44 import com.google.gson.Gson;
  45
  46 /**
  47  * The {@link MeaterBridgeHandler} is responsible for handling commands, which are
  48  * sent to one of the channels.
  49  *
  50  * @author Jan Gustafsson - Initial contribution
  51  */
  52 @NonNullByDefault
  53 public class MeaterBridgeHandler extends BaseBridgeHandler {
  54
  55     private final Logger logger = LoggerFactory.getLogger(MeaterBridgeHandler.class);
  56
  57     public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES = Set.of(THING_TYPE_BRIDGE);
  58
  59     private final Gson gson;
  60     private final HttpClient httpClient;
  61     private final LocaleProvider localeProvider;
  62     private final Map<String, MeaterProbeDTO.Device> meaterProbeThings = new ConcurrentHashMap<>();
  63
  64     private int refreshTimeInSeconds = 300;
  65     private @Nullable MeaterRestAPI api;
  66     private @Nullable ScheduledFuture<?> refreshJob;
  67
  68     public MeaterBridgeHandler(Bridge bridge, HttpClient httpClient, Gson gson, LocaleProvider localeProvider) {
  69         super(bridge);
  70         this.httpClient = httpClient;
  71         this.gson = gson;
  72         this.localeProvider = localeProvider;
  73     }
  74
  75     @Override
  76     public void initialize() {
  77         MeaterBridgeConfiguration config = getConfigAs(MeaterBridgeConfiguration.class);
  78
  79         api = new MeaterRestAPI(config, gson, httpClient, localeProvider);
  80         refreshTimeInSeconds = config.refresh;
  81
  82         if (config.email.isBlank() || config.password.isBlank()) {
  83             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
  84                     "@text/config.missing-username-password.description");
  85         } else {
  86             updateStatus(ThingStatus.UNKNOWN);
  87             scheduler.execute(() -> {
  88                 startAutomaticRefresh();
  89             });
  90         }
  91     }
  92
  93     public Map<String, MeaterProbeDTO.Device> getMeaterThings() {
  94         return meaterProbeThings;
  95     }
  96
  97     @Override
  98     public Collection<Class<? extends ThingHandlerService>> getServices() {
  99         return Set.of(MeaterDiscoveryService.class);
 100     }
 101
 102     @Override
 103     public void dispose() {
 104         stopAutomaticRefresh();
 105         meaterProbeThings.clear();
 106     }
 107
 108     private boolean refreshAndUpdateStatus() {
 109         MeaterRestAPI localAPI = api;
 110         if (localAPI != null) {
 111             if (localAPI.refresh(meaterProbeThings)) {
 112                 updateStatus(ThingStatus.ONLINE);
 113                 getThing().getThings().stream().forEach(thing -> {
 114                     MeaterHandler handler = (MeaterHandler) thing.getHandler();
 115                     if (handler != null) {
 116                         handler.update();
 117                     }
 118                 });
 119                 return true;
 120             } else {
 121                 updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR);
 122             }
 123         }
 124         return false;
 125     }
 126
 127     private void startAutomaticRefresh() {
 128         ScheduledFuture<?> refreshJob = this.refreshJob;
 129         if (refreshJob == null || refreshJob.isCancelled()) {
 130             this.refreshJob = scheduler.scheduleWithFixedDelay(this::refreshAndUpdateStatus, 0, refreshTimeInSeconds,
 131                     TimeUnit.SECONDS);
 132         }
 133     }
 134
 135     private void stopAutomaticRefresh() {
 136         ScheduledFuture<?> refreshJob = this.refreshJob;
 137         if (refreshJob != null) {
 138             refreshJob.cancel(true);
 139             this.refreshJob = null;
 140         }
 141     }
 142
 143     @Override
 144     public void handleCommand(ChannelUID channelUID, Command command) {
 145         logger.debug("Command received: {}", command);
 146         if (command instanceof RefreshType) {
 147             if (channelUID.getId().equals(CHANNEL_STATUS)) {
 148                 logger.debug("Refresh command on status channel {} will trigger instant refresh", channelUID);
 149                 refreshAndUpdateStatus();
 150             }
 151         }
 152     }
 153 }