BlueCove を使用してカスタム Bluetooth デバイスに接続しようとしています。デバイスをペアリングできますが、サービスを検索しようとすると、常に serviceSearchCompleted() で SERVICE_SEARCH_DEVICE_NOT_REACHABLE が返され、サービスが検出されません。Java の外部 (Windows) で同じことを試みると、PC の Bluetooth デバイスが検出され、(COM21、COM22 などを使用して) デバイスの SPP サービスに接続できます。
私は何を間違っていますか？デバイスの検出が終了した後、サービス検索も実行しようとしました。同じ問題。私のコードの下に見つけてください。
これを解決する方法についてのアイデアを事前に感謝します。
エイドリアン。
public class Test {
private static Logger LOG = Logger.getLogger(Test.class.getName());
private static final String NAME = "XXXX";
private static final String PIN = "1234";
private static final UUID[] UUIDS = new UUID[] {new UUID(0x0003), new UUID(0x1101)};
private LocalDevice localDevice;
private DiscoveryAgent discoveryAgent;
private DiscoveryListener discoveryListener = new GDiscoveryListener();
private Map<Integer, RemoteDevice> searchForServices = new HashMap<Integer, RemoteDevice>();
private Collection<ServiceRecord> servicesDiscovered = new HashSet<ServiceRecord>();
private Object lock = new Object();
private CountDownLatch waitForDevices;
protected void connect() {
try {
localDevice = LocalDevice.getLocalDevice();
localDevice.setDiscoverable(DiscoveryAgent.GIAC);
LOG.info("Local Device: " + localDevice.getFriendlyName()
+ "(" + localDevice.getBluetoothAddress() + ")");
discoveryAgent = localDevice.getDiscoveryAgent();
LOG.finest("Start discovering devices");
discoveryAgent.startInquiry(DiscoveryAgent.GIAC, discoveryListener);
try {
synchronized(lock) {
lock.wait();
}
if (searchForServices.size() > 0) {
waitForDevices = new CountDownLatch(searchForServices.size());
waitForDevices.await();
}
}
catch (InterruptedException e) {
LOG.log(Level.WARNING, "Error waiting to terminate discovery", e);
}
LOG.finest(servicesDiscovered.size() + " services discovered");
LOG.finest("Device discovery completed");
} catch (BluetoothStateException e) {
LOG.log(Level.WARNING, "Error initializing Bluetooth", e);
}
}
private class GDiscoveryListener implements DiscoveryListener {
public void deviceDiscovered(RemoteDevice rd, DeviceClass dc) {
try {
String name = rd.getFriendlyName(false);
boolean isMine = NAME.equals(name);
LOG.info("Discovered: " + name + "(" + rd.getBluetoothAddress() + ")"
+ (isMine ? "" : " - ignoring"));
if (!isMine)
return;
if (!rd.isAuthenticated()) {
LOG.finest("Try to pair with " + name
+ " PIN: " + PIN);
boolean paired = RemoteDeviceHelper.authenticate(rd, PIN);
LOG.info("Pair with " + name + (paired ? " succesfull" : " failed"));
}
int transID = discoveryAgent.searchServices(null, UUIDS, rd, discoveryListener);
searchForServices.put(transID, rd);
LOG.finest("Searching for services for " + name + " with transaction " + transID);
} catch (BluetoothStateException e) {
LOG.log(Level.WARNING, "Cannot search services for "
+ rd.getBluetoothAddress(), e);
} catch (IOException e) {
LOG.log(Level.WARNING, "Error connecting ", e);
} catch (Throwable t) {
LOG.log(Level.WARNING, "Cannot search services for "
+ rd.getBluetoothAddress(), t);
}
}
public void inquiryCompleted(int respCode) {
synchronized(lock) {
lock.notify();
}
switch (respCode) {
case DiscoveryListener.INQUIRY_COMPLETED :
LOG.fine("INQUIRY_COMPLETED");
break;
case DiscoveryListener.INQUIRY_TERMINATED :
LOG.fine("INQUIRY_TERMINATED");
break;
case DiscoveryListener.INQUIRY_ERROR :
LOG.fine("INQUIRY_ERROR");
break;
default :
LOG.fine("Unknown Response Code - " + respCode);
break;
}
}
public void serviceSearchCompleted(int transID, int respCode) {
String rd = searchForServices.get(transID).getBluetoothAddress();
//searchForServices.remove(transID);
switch (respCode) {
case DiscoveryListener.SERVICE_SEARCH_COMPLETED:
LOG.fine(rd + ": The service search completed normally");
break;
case DiscoveryListener.SERVICE_SEARCH_TERMINATED:
LOG.fine(rd + ": The service search request was cancelled by a call to DiscoveryAgent.cancelServiceSearch(int)");
break;
case DiscoveryListener.SERVICE_SEARCH_ERROR:
LOG.warning(rd + ": An error occurred while processing the request");
break;
case DiscoveryListener.SERVICE_SEARCH_NO_RECORDS:
LOG.info(rd + ": No records were found during the service search");
break;
case DiscoveryListener.SERVICE_SEARCH_DEVICE_NOT_REACHABLE:
LOG.warning(rd + ": The device specified in the search request could not be reached or the local device could not establish a connection to the remote device");
break;
default:
LOG.warning(rd + ": Unknown Response Code - " + respCode);
break;
}
if (waitForDevices != null)
waitForDevices.countDown();
}
public void servicesDiscovered(int transID, ServiceRecord[] srs) {
LOG.info("Services discovered in transaction " + transID + " : " + srs.length);
for (ServiceRecord sr : srs) {
LOG.info(sr.getConnectionURL(ServiceRecord.NOAUTHENTICATE_NOENCRYPT, false));
servicesDiscovered.add(sr);
}
}
}
public static void main(String[] args) {
new Test().connect();
}
}