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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.bluetooth.bluez.internal;
  14
  15 import java.util.Collection;
  16 import java.util.List;
  17 import java.util.Set;
  18
  19 import org.eclipse.jdt.annotation.NonNullByDefault;
  20 import org.eclipse.jdt.annotation.Nullable;
  21 import org.openhab.binding.bluetooth.BluetoothAddress;
  22
  23 import com.github.hypfvieh.bluetooth.DeviceManager;
  24 import com.github.hypfvieh.bluetooth.wrapper.BluetoothAdapter;
  25 import com.github.hypfvieh.bluetooth.wrapper.BluetoothDevice;
  26
  27 /**
  28  * This is a threadsafe wrapper for a {@link DeviceManager} that also only exposes the methods
  29  * required to implement this binding.
  30  *
  31  * @author Connor Petty - Initial Contribution
  32  */
  33 @NonNullByDefault
  34 public class DeviceManagerWrapper {
  35
  36     private @Nullable DeviceManager deviceManager;
  37
  38     public DeviceManagerWrapper(@Nullable DeviceManager deviceManager) {
  39         this.deviceManager = deviceManager;
  40     }
  41
  42     @SuppressWarnings("null")
  43     public synchronized Collection<BluetoothAdapter> scanForBluetoothAdapters() {
  44         if (deviceManager != null) {
  45             return deviceManager.scanForBluetoothAdapters();
  46         } else {
  47             return Set.of();
  48         }
  49     }
  50
  51     public synchronized @Nullable BluetoothAdapter getAdapter(BluetoothAddress address) {
  52         DeviceManager devMgr = deviceManager;
  53         if (devMgr != null) {
  54             // we don't use `deviceManager.getAdapter` here since it might perform a scan if the adapter is missing.
  55             String addr = address.toString();
  56             List<BluetoothAdapter> adapters = devMgr.getAdapters();
  57             if (adapters != null) {
  58                 for (BluetoothAdapter btAdapter : adapters) {
  59                     String btAddr = btAdapter.getAddress();
  60                     if (addr.equalsIgnoreCase(btAddr)) {
  61                         return btAdapter;
  62                     }
  63                 }
  64             }
  65         }
  66         return null;
  67     }
  68
  69     public synchronized List<BluetoothDevice> getDevices(BluetoothAdapter adapter) {
  70         if (deviceManager != null) {
  71             return deviceManager.getDevices(adapter.getAddress(), true);
  72         } else {
  73             return List.of();
  74         }
  75     }
  76 }