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   1 /**
   2  * Copyright (c) 2010-2020 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.digitalstrom.internal.discovery;
  14
  15 import static org.openhab.binding.digitalstrom.internal.DigitalSTROMBindingConstants.BINDING_ID;
  16
  17 import java.util.Arrays;
  18 import java.util.Date;
  19 import java.util.HashMap;
  20 import java.util.HashSet;
  21 import java.util.List;
  22 import java.util.Map;
  23
  24 import org.apache.commons.lang.StringUtils;
  25 import org.openhab.binding.digitalstrom.internal.DigitalSTROMBindingConstants;
  26 import org.openhab.binding.digitalstrom.internal.handler.BridgeHandler;
  27 import org.openhab.binding.digitalstrom.internal.lib.structure.devices.Circuit;
  28 import org.openhab.binding.digitalstrom.internal.lib.structure.devices.Device;
  29 import org.openhab.binding.digitalstrom.internal.lib.structure.devices.GeneralDeviceInformation;
  30 import org.openhab.binding.digitalstrom.internal.providers.DsDeviceThingTypeProvider;
  31 import org.openhab.core.config.discovery.AbstractDiscoveryService;
  32 import org.openhab.core.config.discovery.DiscoveryResult;
  33 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  34 import org.openhab.core.thing.ThingTypeUID;
  35 import org.openhab.core.thing.ThingUID;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38
  39 /**
  40  * The {@link DeviceDiscoveryService} discovers all digitalSTROM-Devices, of one supported device-color-type. The
  41  * device-color-type has to be given to the {@link #DeviceDiscoveryService(BridgeHandler, ThingTypeUID)} as
  42  * {@link ThingTypeUID}. The supported {@link ThingTypeUID} can be found at
  43  * {@link DeviceHandler#SUPPORTED_THING_TYPES}.
  44  *
  45  * @author Michael Ochel - Initial contribution
  46  * @author Matthias Siegele - Initial contribution
  47  */
  48 public class DeviceDiscoveryService extends AbstractDiscoveryService {
  49
  50     private final Logger logger = LoggerFactory.getLogger(DeviceDiscoveryService.class);
  51
  52     private final BridgeHandler bridgeHandler;
  53     private final String deviceType;
  54     private final ThingUID bridgeUID;
  55
  56     public static final int TIMEOUT = 10;
  57
  58     /**
  59      * Creates a new {@link DeviceDiscoveryService} for the given supported {@link ThingTypeUID}.
  60      *
  61      * @param bridgeHandler (must not be null)
  62      * @param supportedThingType (must not be null)
  63      * @throws IllegalArgumentException see {@link AbstractDiscoveryService#AbstractDiscoveryService(int)}
  64      */
  65     public DeviceDiscoveryService(BridgeHandler bridgeHandler, ThingTypeUID supportedThingType)
  66             throws IllegalArgumentException {
  67         super(new HashSet<>(Arrays.asList(supportedThingType)), TIMEOUT, true);
  68         this.deviceType = supportedThingType.getId();
  69         this.bridgeHandler = bridgeHandler;
  70         bridgeUID = bridgeHandler.getThing().getUID();
  71     }
  72
  73     /**
  74      * Deactivates the {@link DeviceDiscoveryService} and removes the {@link DiscoveryResult}s.
  75      */
  76     @Override
  77     public void deactivate() {
  78         logger.debug("deactivate discovery service for device type {} thing types are: {}", deviceType,
  79                 super.getSupportedThingTypes().toString());
  80         removeOlderResults(new Date().getTime());
  81     }
  82
  83     @Override
  84     protected void startScan() {
  85         if (bridgeHandler != null) {
  86             if (!DsDeviceThingTypeProvider.SupportedThingTypes.circuit.toString().equals(deviceType)) {
  87                 List<Device> devices = bridgeHandler.getDevices();
  88                 if (devices != null) {
  89                     for (Device device : devices) {
  90                         onDeviceAddedInternal(device);
  91                     }
  92                 }
  93             } else {
  94                 List<Circuit> circuits = bridgeHandler.getCircuits();
  95                 if (circuits != null) {
  96                     for (Circuit circuit : circuits) {
  97                         onDeviceAddedInternal(circuit);
  98                     }
  99                 }
 100             }
 101         }
 102     }
 103
 104     @Override
 105     protected synchronized void stopScan() {
 106         super.stopScan();
 107         removeOlderResults(getTimestampOfLastScan());
 108     }
 109
 110     private void onDeviceAddedInternal(GeneralDeviceInformation device) {
 111         boolean isSupported = false;
 112         if (device instanceof Device) {
 113             Device tempDevice = (Device) device;
 114             if ((tempDevice.isSensorDevice() && deviceType.equals(tempDevice.getHWinfo().replaceAll("-", "")))
 115                     || (deviceType.equals(tempDevice.getHWinfo().substring(0, 2))
 116                             && (tempDevice.isDeviceWithOutput() || tempDevice.isBinaryInputDevice())
 117                             && tempDevice.isPresent())) {
 118                 isSupported = true;
 119             }
 120         } else if (device instanceof Circuit
 121                 && DsDeviceThingTypeProvider.SupportedThingTypes.circuit.toString().equals(deviceType)) {
 122             isSupported = true;
 123         }
 124         if (isSupported) {
 125             ThingUID thingUID = getThingUID(device);
 126             if (thingUID != null) {
 127                 Map<String, Object> properties = new HashMap<>(1);
 128                 properties.put(DigitalSTROMBindingConstants.DEVICE_DSID, device.getDSID().getValue());
 129                 String deviceName = null;
 130                 if (StringUtils.isNotBlank(device.getName())) {
 131                     deviceName = device.getName();
 132                 } else {
 133                     // if no name is set, the dSID will be used as name
 134                     deviceName = device.getDSID().getValue();
 135                 }
 136                 DiscoveryResult discoveryResult = DiscoveryResultBuilder.create(thingUID).withProperties(properties)
 137                         .withBridge(bridgeUID).withLabel(deviceName).build();
 138
 139                 thingDiscovered(discoveryResult);
 140             } else {
 141                 if (device instanceof Device) {
 142                     logger.debug("Discovered unsupported device hardware type '{}' with uid {}",
 143                             ((Device) device).getHWinfo(), device.getDSUID());
 144                 }
 145             }
 146         } else {
 147             if (device instanceof Device) {
 148                 logger.debug(
 149                         "Discovered device with disabled or no output mode. Device was not added to inbox. "
 150                                 + "Device information: hardware info: {}, dSUID: {}, device-name: {}, output value: {}",
 151                         ((Device) device).getHWinfo(), device.getDSUID(), device.getName(),
 152                         ((Device) device).getOutputMode());
 153             }
 154         }
 155     }
 156
 157     private ThingUID getThingUID(GeneralDeviceInformation device) {
 158         ThingUID bridgeUID = bridgeHandler.getThing().getUID();
 159         ThingTypeUID thingTypeUID = null;
 160         if (device instanceof Device) {
 161             Device tempDevice = (Device) device;
 162             thingTypeUID = new ThingTypeUID(BINDING_ID, tempDevice.getHWinfo().substring(0, 2));
 163             if (tempDevice.isSensorDevice() && deviceType.equals(tempDevice.getHWinfo().replaceAll("-", ""))) {
 164                 thingTypeUID = new ThingTypeUID(BINDING_ID, deviceType);
 165             }
 166         } else {
 167             thingTypeUID = new ThingTypeUID(BINDING_ID,
 168                     DsDeviceThingTypeProvider.SupportedThingTypes.circuit.toString());
 169         }
 170         if (getSupportedThingTypes().contains(thingTypeUID)) {
 171             String thingDeviceId = device.getDSID().toString();
 172             ThingUID thingUID = new ThingUID(thingTypeUID, bridgeUID, thingDeviceId);
 173             return thingUID;
 174         } else {
 175             return null;
 176         }
 177     }
 178
 179     /**
 180      * Removes the {@link Thing} of the given {@link Device}.
 181      *
 182      * @param device (must not be null)
 183      */
 184     public void onDeviceRemoved(GeneralDeviceInformation device) {
 185         ThingUID thingUID = getThingUID(device);
 186
 187         if (thingUID != null) {
 188             thingRemoved(thingUID);
 189         }
 190     }
 191
 192     /**
 193      * Creates a {@link DiscoveryResult} for the given {@link Device}, if the {@link Device} is supported and the
 194      * {@link Device#getOutputMode()} is unequal {@link OutputModeEnum#DISABLED}.
 195      *
 196      * @param device (must not be null)
 197      */
 198     public void onDeviceAdded(GeneralDeviceInformation device) {
 199         if (super.isBackgroundDiscoveryEnabled()) {
 200             onDeviceAddedInternal(device);
 201         }
 202     }
 203
 204     /**
 205      * Returns the ID of this {@link DeviceDiscoveryService}.
 206      *
 207      * @return id of the service
 208      */
 209     public String getID() {
 210         return deviceType;
 211     }
 212 }