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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.touchwand.internal.discovery;
  14
  15 import static org.openhab.binding.touchwand.internal.TouchWandBindingConstants.*;
  16
  17 import java.util.Arrays;
  18 import java.util.Date;
  19 import java.util.HashMap;
  20 import java.util.Map;
  21 import java.util.concurrent.ScheduledFuture;
  22 import java.util.concurrent.TimeUnit;
  23
  24 import org.eclipse.jdt.annotation.NonNull;
  25 import org.eclipse.jdt.annotation.NonNullByDefault;
  26 import org.eclipse.jdt.annotation.Nullable;
  27 import org.openhab.binding.touchwand.internal.TouchWandBridgeHandler;
  28 import org.openhab.binding.touchwand.internal.dto.TouchWandUnitData;
  29 import org.openhab.binding.touchwand.internal.dto.TouchWandUnitFromJson;
  30 import org.openhab.core.config.discovery.AbstractDiscoveryService;
  31 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  32 import org.openhab.core.thing.ThingStatus;
  33 import org.openhab.core.thing.ThingTypeUID;
  34 import org.openhab.core.thing.ThingUID;
  35 import org.openhab.core.thing.binding.ThingHandler;
  36 import org.openhab.core.thing.binding.ThingHandlerService;
  37 import org.slf4j.Logger;
  38 import org.slf4j.LoggerFactory;
  39
  40 import com.google.gson.JsonArray;
  41 import com.google.gson.JsonElement;
  42 import com.google.gson.JsonParser;
  43 import com.google.gson.JsonSyntaxException;
  44
  45 /**
  46  * The {@link TouchWandUnitDiscoveryService} Discovery service for TouchWand units.
  47  *
  48  * @author Roie Geron - Initial contribution
  49  */
  50 @NonNullByDefault
  51 public class TouchWandUnitDiscoveryService extends AbstractDiscoveryService implements ThingHandlerService {
  52
  53     private static final int SEARCH_TIME_SEC = 10;
  54     private static final int SCAN_INTERVAL_SEC = 60;
  55     private static final int LINK_DISCOVERY_SERVICE_INITIAL_DELAY_SEC = 5;
  56     private static final String[] CONNECTIVITY_OPTIONS = { CONNECTIVITY_KNX, CONNECTIVITY_ZWAVE, CONNECTIVITY_RISCO,
  57             CONNECTIVITY_PIMA, CONNECTIVITY_ACWAND };
  58     private @NonNullByDefault({}) TouchWandBridgeHandler touchWandBridgeHandler;
  59     private final Logger logger = LoggerFactory.getLogger(TouchWandUnitDiscoveryService.class);
  60
  61     private @Nullable ScheduledFuture<?> scanningJob;
  62
  63     public TouchWandUnitDiscoveryService() {
  64         super(SUPPORTED_THING_TYPES_UIDS, SEARCH_TIME_SEC, true);
  65     }
  66
  67     @Override
  68     protected void startScan() {
  69         if (touchWandBridgeHandler.getThing().getStatus() != ThingStatus.ONLINE) {
  70             logger.debug("Could not scan units while bridge offline");
  71             return;
  72         }
  73
  74         logger.debug("Starting TouchWand discovery on bridge {}", touchWandBridgeHandler.getThing().getUID());
  75         String response = touchWandBridgeHandler.touchWandClient.cmdListUnits();
  76         if (response.isEmpty()) {
  77             return;
  78         }
  79
  80         try {
  81             JsonArray jsonArray = JsonParser.parseString(response).getAsJsonArray();
  82             if (jsonArray.isJsonArray()) {
  83                 try {
  84                     for (JsonElement unit : jsonArray) {
  85                         TouchWandUnitData touchWandUnit;
  86                         touchWandUnit = TouchWandUnitFromJson.parseResponse(unit.getAsJsonObject());
  87
  88                         if (!touchWandBridgeHandler.isAddSecondaryControllerUnits()) {
  89                             if (!Arrays.asList(CONNECTIVITY_OPTIONS).contains(touchWandUnit.getConnectivity())) {
  90                                 continue;
  91                             }
  92                         }
  93                         String type = touchWandUnit.getType();
  94                         if (!Arrays.asList(SUPPORTED_TOUCHWAND_TYPES).contains(type)) {
  95                             logger.debug("Unit discovery skipping unsupported unit type : {} ", type);
  96                             continue;
  97                         }
  98                         switch (type) {
  99                             case TYPE_WALLCONTROLLER:
 100                                 addDeviceDiscoveryResult(touchWandUnit, THING_TYPE_WALLCONTROLLER);
 101                                 break;
 102                             case TYPE_SWITCH:
 103                                 addDeviceDiscoveryResult(touchWandUnit, THING_TYPE_SWITCH);
 104                                 break;
 105                             case TYPE_DIMMER:
 106                                 addDeviceDiscoveryResult(touchWandUnit, THING_TYPE_DIMMER);
 107                                 break;
 108                             case TYPE_SHUTTER:
 109                                 addDeviceDiscoveryResult(touchWandUnit, THING_TYPE_SHUTTER);
 110                                 break;
 111                             case TYPE_ALARMSENSOR:
 112                                 addDeviceDiscoveryResult(touchWandUnit, THING_TYPE_ALARMSENSOR);
 113                                 break;
 114                             case TYPE_BSENSOR:
 115                                 addDeviceDiscoveryResult(touchWandUnit, THING_TYPE_BSENSOR);
 116                                 break;
 117                             case TYPE_THERMOSTAT:
 118                                 addDeviceDiscoveryResult(touchWandUnit, THING_TYPE_THERMOSTAT);
 119                                 break;
 120                             default:
 121                                 continue;
 122                         }
 123                     }
 124                 } catch (JsonSyntaxException e) {
 125                     logger.warn("Could not parse unit {}", e.getMessage());
 126                 }
 127             }
 128         } catch (JsonSyntaxException msg) {
 129             logger.warn("Could not parse list units response error:{} ", msg.getMessage());
 130         }
 131     }
 132
 133     @Override
 134     protected void stopScan() {
 135         removeOlderResults(getTimestampOfLastScan());
 136         super.stopScan();
 137     }
 138
 139     @Override
 140     public void activate() {
 141         super.activate(null);
 142         removeOlderResults(new Date().getTime(), touchWandBridgeHandler.getThing().getUID());
 143     }
 144
 145     @Override
 146     public void deactivate() {
 147         removeOlderResults(new Date().getTime(), touchWandBridgeHandler.getThing().getUID());
 148         super.deactivate();
 149     }
 150
 151     @Override
 152     protected void startBackgroundDiscovery() {
 153         ScheduledFuture<?> localScanningJob = scanningJob;
 154         if (localScanningJob == null || localScanningJob.isCancelled()) {
 155             scanningJob = scheduler.scheduleWithFixedDelay(this::startScan, LINK_DISCOVERY_SERVICE_INITIAL_DELAY_SEC,
 156                     SCAN_INTERVAL_SEC, TimeUnit.SECONDS);
 157         }
 158     }
 159
 160     @Override
 161     protected void stopBackgroundDiscovery() {
 162         ScheduledFuture<?> myScanningJob = scanningJob;
 163         if (myScanningJob != null) {
 164             myScanningJob.cancel(true);
 165             scanningJob = null;
 166         }
 167     }
 168
 169     @Override
 170     public int getScanTimeout() {
 171         return SEARCH_TIME_SEC;
 172     }
 173
 174     private void addDeviceDiscoveryResult(TouchWandUnitData unit, ThingTypeUID typeUID) {
 175         ThingUID bridgeUID = touchWandBridgeHandler.getThing().getUID();
 176         ThingUID thingUID = new ThingUID(typeUID, bridgeUID, unit.getId().toString());
 177         Map<String, Object> properties = new HashMap<>();
 178         properties.put(HANDLER_PROPERTIES_ID, unit.getId().toString());
 179         properties.put(HANDLER_PROPERTIES_NAME, unit.getName());
 180         // @formatter:off
 181         thingDiscovered(DiscoveryResultBuilder.create(thingUID)
 182                 .withThingType(typeUID)
 183                 .withLabel(unit.getName())
 184                 .withBridge(bridgeUID)
 185                 .withProperties(properties)
 186                 .withRepresentationProperty(HANDLER_PROPERTIES_ID)
 187                 .build()
 188         );
 189         // @formatter:on
 190     }
 191
 192     @Override
 193     public void setThingHandler(@NonNullByDefault({}) ThingHandler handler) {
 194         if (handler instanceof TouchWandBridgeHandler) {
 195             touchWandBridgeHandler = (TouchWandBridgeHandler) handler;
 196         }
 197     }
 198
 199     @Override
 200     public @NonNull ThingHandler getThingHandler() {
 201         return touchWandBridgeHandler;
 202     }
 203 }