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   1 /**
   2  * Copyright (c) 2010-2023 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.wolfsmartset.internal.discovery;
  14
  15 import static org.openhab.binding.wolfsmartset.internal.WolfSmartsetBindingConstants.*;
  16
  17 import java.util.HashMap;
  18 import java.util.Map;
  19 import java.util.Set;
  20 import java.util.concurrent.Future;
  21 import java.util.concurrent.TimeUnit;
  22
  23 import org.eclipse.jdt.annotation.NonNullByDefault;
  24 import org.eclipse.jdt.annotation.Nullable;
  25 import org.openhab.binding.wolfsmartset.internal.dto.GetSystemListDTO;
  26 import org.openhab.binding.wolfsmartset.internal.handler.WolfSmartsetAccountBridgeHandler;
  27 import org.openhab.core.config.discovery.AbstractDiscoveryService;
  28 import org.openhab.core.config.discovery.DiscoveryResult;
  29 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  30 import org.openhab.core.thing.ThingStatus;
  31 import org.openhab.core.thing.ThingTypeUID;
  32 import org.openhab.core.thing.ThingUID;
  33 import org.openhab.core.thing.binding.ThingHandler;
  34 import org.openhab.core.thing.binding.ThingHandlerService;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37
  38 /**
  39  * The {@link WolfSmartsetAccountDiscoveryService} is responsible for discovering the WolfSmartset
  40  * systems that are associated with the WolfSmartset Account
  41  *
  42  * @author Bo Biene - Initial contribution
  43  */
  44 @NonNullByDefault
  45 public class WolfSmartsetAccountDiscoveryService extends AbstractDiscoveryService implements ThingHandlerService {
  46
  47     private final Logger logger = LoggerFactory.getLogger(WolfSmartsetAccountDiscoveryService.class);
  48
  49     private @NonNullByDefault({}) WolfSmartsetAccountBridgeHandler bridgeHandler;
  50
  51     private @Nullable Future<?> discoveryJob;
  52
  53     public WolfSmartsetAccountDiscoveryService() {
  54         super(SUPPORTED_SYSTEM_AND_UNIT_THING_TYPES_UIDS, 8, true);
  55     }
  56
  57     @Override
  58     public void setThingHandler(@Nullable ThingHandler handler) {
  59         if (handler instanceof WolfSmartsetAccountBridgeHandler) {
  60             this.bridgeHandler = (WolfSmartsetAccountBridgeHandler) handler;
  61         }
  62     }
  63
  64     @Override
  65     public @Nullable ThingHandler getThingHandler() {
  66         return bridgeHandler;
  67     }
  68
  69     @Override
  70     public void activate() {
  71         super.activate(null);
  72     }
  73
  74     @Override
  75     public void deactivate() {
  76         super.deactivate();
  77     }
  78
  79     @Override
  80     public Set<ThingTypeUID> getSupportedThingTypes() {
  81         return SUPPORTED_SYSTEM_AND_UNIT_THING_TYPES_UIDS;
  82     }
  83
  84     @Override
  85     protected void startBackgroundDiscovery() {
  86         logger.debug("WolfSmartsetDiscovery: Starting background discovery job");
  87
  88         Future<?> localDiscoveryJob = discoveryJob;
  89         if (localDiscoveryJob == null || localDiscoveryJob.isCancelled()) {
  90             discoveryJob = scheduler.scheduleWithFixedDelay(this::backgroundDiscover, DISCOVERY_INITIAL_DELAY_SECONDS,
  91                     DISCOVERY_INTERVAL_SECONDS, TimeUnit.SECONDS);
  92         }
  93     }
  94
  95     @Override
  96     protected void stopBackgroundDiscovery() {
  97         logger.debug("WolfSmartsetDiscovery: Stopping background discovery job");
  98         Future<?> localDiscoveryJob = discoveryJob;
  99         if (localDiscoveryJob != null) {
 100             localDiscoveryJob.cancel(true);
 101             discoveryJob = null;
 102         }
 103     }
 104
 105     @Override
 106     public void startScan() {
 107         logger.debug("WolfSmartsetDiscovery: Starting discovery scan");
 108         discover();
 109     }
 110
 111     private void backgroundDiscover() {
 112         if (!bridgeHandler.isBackgroundDiscoveryEnabled()) {
 113             return;
 114         }
 115         discover();
 116     }
 117
 118     private void discover() {
 119         if (bridgeHandler.getThing().getStatus() != ThingStatus.ONLINE) {
 120             logger.debug("WolfSmartsetDiscovery: Skipping discovery because Account Bridge thing is not ONLINE");
 121             return;
 122         }
 123         logger.debug("WolfSmartsetDiscovery: Discovering WolfSmartset devices");
 124         discoverSystems();
 125     }
 126
 127     private synchronized void discoverSystems() {
 128         logger.debug("WolfSmartsetDiscovery: Discovering systems");
 129         var registeredSytems = bridgeHandler.getRegisteredSystems();
 130         if (registeredSytems != null) {
 131             for (GetSystemListDTO system : registeredSytems) {
 132                 String name = system.getName();
 133                 String identifier = null;
 134                 if (system.getId() != null) {
 135                     identifier = system.getId().toString();
 136                 }
 137                 if (identifier != null && name != null) {
 138                     ThingUID thingUID = new ThingUID(UID_SYSTEM_BRIDGE, bridgeHandler.getThing().getUID(), identifier);
 139                     thingDiscovered(createSystemDiscoveryResult(thingUID, identifier, name));
 140                     logger.debug("WolfSmartsetDiscovery: System '{}' and name '{}' added with UID '{}'", identifier,
 141                             name, thingUID);
 142                 }
 143             }
 144         }
 145     }
 146
 147     private DiscoveryResult createSystemDiscoveryResult(ThingUID systemUID, String identifier, String name) {
 148         Map<String, Object> properties = new HashMap<>();
 149         properties.put(CONFIG_SYSTEM_ID, identifier);
 150         return DiscoveryResultBuilder.create(systemUID).withProperties(properties)
 151                 .withRepresentationProperty(CONFIG_SYSTEM_ID).withBridge(bridgeHandler.getThing().getUID())
 152                 .withLabel(String.format("WolfSmartset System %s", name)).build();
 153     }
 154 }