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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.bondhome.internal.discovery;
  14
  15 import static org.openhab.binding.bondhome.internal.BondHomeBindingConstants.*;
  16
  17 import java.util.List;
  18 import java.util.concurrent.ScheduledFuture;
  19 import java.util.concurrent.TimeUnit;
  20
  21 import org.eclipse.jdt.annotation.NonNullByDefault;
  22 import org.eclipse.jdt.annotation.Nullable;
  23 import org.openhab.binding.bondhome.internal.BondException;
  24 import org.openhab.binding.bondhome.internal.api.BondDevice;
  25 import org.openhab.binding.bondhome.internal.api.BondHttpApi;
  26 import org.openhab.binding.bondhome.internal.handler.BondBridgeHandler;
  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.ThingUID;
  31 import org.openhab.core.thing.binding.ThingHandler;
  32 import org.openhab.core.thing.binding.ThingHandlerService;
  33 import org.slf4j.Logger;
  34 import org.slf4j.LoggerFactory;
  35
  36 /**
  37  * This class does discovery of discoverable things
  38  *
  39  * @author Sara Geleskie Damiano - Initial contribution
  40  */
  41 @NonNullByDefault
  42 public class BondDiscoveryService extends AbstractDiscoveryService implements ThingHandlerService {
  43     private static final long REFRESH_INTERVAL_MINUTES = 60;
  44     private final Logger logger = LoggerFactory.getLogger(BondDiscoveryService.class);
  45     private @Nullable ScheduledFuture<?> discoveryJob;
  46     private @Nullable BondBridgeHandler bridgeHandler;
  47     private @Nullable BondHttpApi api;
  48
  49     public BondDiscoveryService() {
  50         super(SUPPORTED_THING_TYPES, 10);
  51         this.discoveryJob = null;
  52     }
  53
  54     @Override
  55     public void deactivate() {
  56         super.deactivate();
  57     }
  58
  59     @Override
  60     public void setThingHandler(@Nullable ThingHandler handler) {
  61         if (handler instanceof BondBridgeHandler) {
  62             @Nullable
  63             BondBridgeHandler localHandler = (BondBridgeHandler) handler;
  64             bridgeHandler = localHandler;
  65             localHandler.setDiscoveryService(this);
  66             api = localHandler.getBridgeAPI();
  67         }
  68     }
  69
  70     @Override
  71     public @Nullable ThingHandler getThingHandler() {
  72         return bridgeHandler;
  73     }
  74
  75     @Override
  76     protected void startBackgroundDiscovery() {
  77         discoverNow();
  78     }
  79
  80     public synchronized void discoverNow() {
  81         ScheduledFuture<?> localDiscoveryJob = discoveryJob;
  82         if (localDiscoveryJob != null) {
  83             localDiscoveryJob.cancel(true);
  84         }
  85         discoveryJob = scheduler.scheduleWithFixedDelay(this::startScan, 0, REFRESH_INTERVAL_MINUTES, TimeUnit.MINUTES);
  86     }
  87
  88     @Override
  89     protected synchronized void startScan() {
  90         logger.debug("Start scan for Bond devices.");
  91         try {
  92             final ThingUID bridgeUid = bridgeHandler.getThing().getUID();
  93             api = bridgeHandler.getBridgeAPI();
  94             List<String> deviceList = api.getDevices();
  95             if (deviceList != null) {
  96                 for (final String deviceId : deviceList) {
  97                     BondDevice thisDevice = api.getDevice(deviceId);
  98                     String deviceName;
  99                     if (thisDevice.type != null && (deviceName = thisDevice.name) != null) {
 100                         final ThingUID deviceUid = new ThingUID(thisDevice.type.getThingTypeUID(), bridgeUid, deviceId);
 101                         final DiscoveryResult discoveryResult = DiscoveryResultBuilder.create(deviceUid)
 102                                 .withBridge(bridgeUid).withLabel(thisDevice.name)
 103                                 .withProperty(CONFIG_DEVICE_ID, deviceId)
 104                                 .withProperty(PROPERTIES_DEVICE_NAME, deviceName)
 105                                 .withRepresentationProperty(CONFIG_DEVICE_ID).build();
 106                         thingDiscovered(discoveryResult);
 107                     }
 108                 }
 109             }
 110         } catch (BondException ignored) {
 111             logger.warn("Error getting devices for discovery: {}", ignored.getMessage());
 112         } finally {
 113             removeOlderResults(getTimestampOfLastScan());
 114         }
 115     }
 116
 117     @Override
 118     protected void stopBackgroundDiscovery() {
 119         stopScan();
 120         ScheduledFuture<?> discoveryJob = this.discoveryJob;
 121         if (discoveryJob != null) {
 122             discoveryJob.cancel(true);
 123             this.discoveryJob = null;
 124         }
 125     }
 126 }