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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.elroconnects.internal.discovery;
  14
  15 import static org.openhab.binding.elroconnects.internal.ElroConnectsBindingConstants.*;
  16
  17 import java.util.Map;
  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.elroconnects.internal.ElroConnectsBindingConstants;
  24 import org.openhab.binding.elroconnects.internal.ElroConnectsBindingConstants.ElroDeviceType;
  25 import org.openhab.binding.elroconnects.internal.devices.ElroConnectsDevice;
  26 import org.openhab.binding.elroconnects.internal.handler.ElroConnectsBridgeHandler;
  27 import org.openhab.core.config.discovery.AbstractDiscoveryService;
  28 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  29 import org.openhab.core.thing.ThingTypeUID;
  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  * The {@link ElroConnectsDiscoveryService} discovers devices connected to the ELRO Connects K1 Controller.
  38  *
  39  * @author Mark Herwege - Initial contribution
  40  */
  41 @NonNullByDefault
  42 public class ElroConnectsDiscoveryService extends AbstractDiscoveryService implements ThingHandlerService {
  43
  44     private final Logger logger = LoggerFactory.getLogger(ElroConnectsDiscoveryService.class);
  45
  46     private @Nullable ElroConnectsBridgeHandler bridgeHandler;
  47
  48     private static final int TIMEOUT_SECONDS = 5;
  49     private static final int REFRESH_INTERVAL_SECONDS = 60;
  50
  51     private @Nullable ScheduledFuture<?> discoveryJob;
  52
  53     public ElroConnectsDiscoveryService() {
  54         super(ElroConnectsBindingConstants.SUPPORTED_THING_TYPES_UIDS, TIMEOUT_SECONDS);
  55         logger.debug("Bridge discovery service started");
  56     }
  57
  58     @Override
  59     protected void startScan() {
  60         discoverDevices();
  61     }
  62
  63     private void discoverDevices() {
  64         logger.debug("Starting device discovery scan");
  65         ElroConnectsBridgeHandler bridge = bridgeHandler;
  66         if (bridge != null) {
  67             Map<Integer, ElroConnectsDevice> devices = bridge.getDevices();
  68             ThingUID bridgeUID = bridge.getThing().getUID();
  69             devices.entrySet().forEach(e -> {
  70                 String deviceId = e.getKey().toString();
  71                 String deviceName = e.getValue().getDeviceName();
  72                 String deviceType = e.getValue().getDeviceType();
  73                 if (!deviceType.isEmpty()) {
  74                     ElroDeviceType type = TYPE_MAP.get(deviceType);
  75                     if (type != null) {
  76                         ThingTypeUID thingTypeUID = THING_TYPE_MAP.get(type);
  77                         if (thingTypeUID != null) {
  78                             thingDiscovered(DiscoveryResultBuilder
  79                                     .create(new ThingUID(thingTypeUID, bridgeUID, deviceId)).withLabel(deviceName)
  80                                     .withBridge(bridgeUID).withProperty(CONFIG_DEVICE_ID, deviceId)
  81                                     .withRepresentationProperty(CONFIG_DEVICE_ID).build());
  82                         }
  83                     }
  84                 }
  85             });
  86         }
  87     }
  88
  89     @Override
  90     protected synchronized void stopScan() {
  91         super.stopScan();
  92         removeOlderResults(getTimestampOfLastScan());
  93     }
  94
  95     @Override
  96     protected void startBackgroundDiscovery() {
  97         logger.debug("Start device background discovery");
  98         ScheduledFuture<?> job = discoveryJob;
  99         if (job == null || job.isCancelled()) {
 100             discoveryJob = scheduler.scheduleWithFixedDelay(this::discoverDevices, 0, REFRESH_INTERVAL_SECONDS,
 101                     TimeUnit.SECONDS);
 102         }
 103     }
 104
 105     @Override
 106     protected void stopBackgroundDiscovery() {
 107         logger.debug("Stop device background discovery");
 108         ScheduledFuture<?> job = discoveryJob;
 109         if (job != null) {
 110             job.cancel(true);
 111             discoveryJob = null;
 112         }
 113     }
 114
 115     @Override
 116     public void deactivate() {
 117         super.deactivate();
 118     }
 119
 120     @Override
 121     public void setThingHandler(@Nullable ThingHandler handler) {
 122         if (handler instanceof ElroConnectsBridgeHandler) {
 123             bridgeHandler = (ElroConnectsBridgeHandler) handler;
 124         }
 125     }
 126
 127     @Override
 128     public @Nullable ThingHandler getThingHandler() {
 129         return bridgeHandler;
 130     }
 131 }