ServicesSearch.java

/*
Copyright 2011 Alex Redaelli

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

     http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
*/
package net.hgw4.bt;
import java.io.IOException;
import java.util.Enumeration;
import java.util.Vector;
import javax.bluetooth.*;


/**
 *
 * Minimal Services Search example.
 */
public class ServicesSearch {

    static final UUID SERIAL = new UUID(0x1101);

    public static final Vector/*<String>*/ serviceFound = new Vector();

    public static void main(String[] args) throws IOException, InterruptedException {

        // First run RemoteDeviceDiscovery and use discoved device
        RemoteDeviceDiscovery.main(null);

        serviceFound.clear();

        UUID serviceUUID = SERIAL;
        if ((args != null) && (args.length > 0)) {
            serviceUUID = new UUID(args[0], false);
        }

        final Object serviceSearchCompletedEvent = new Object();

        DiscoveryListener listener = new DiscoveryListener() {

            public void deviceDiscovered(RemoteDevice btDevice, DeviceClass cod) {
            }

            public void inquiryCompleted(int discType) {
            }

            public void servicesDiscovered(int transID, ServiceRecord[] servRecord) {
                for (int i = 0; i < servRecord.length; i++) {
                    String url = servRecord[i].getConnectionURL(ServiceRecord.NOAUTHENTICATE_NOENCRYPT, false);
                    if (url == null) {
                        continue;
                    }
                    serviceFound.add(url);
                    DataElement serviceName = servRecord[i].getAttributeValue(0x0100);
                    if (serviceName != null) {
                        System.out.println("service " + serviceName.getValue() + " found " + url);
                    } else {
                        System.out.println("service found " + url);
                    }
                }
            }

            public void serviceSearchCompleted(int transID, int respCode) {
                System.out.println("service search completed!");
                synchronized(serviceSearchCompletedEvent){
                    serviceSearchCompletedEvent.notifyAll();
                }
            }

        };

        UUID[] searchUuidSet = new UUID[] { serviceUUID };
        int[] attrIDs =  new int[] {
                0x0100 // Service name
        };

        for(Enumeration en = RemoteDeviceDiscovery.devicesDiscovered.elements(); en.hasMoreElements(); ) {
            RemoteDevice btDevice = (RemoteDevice)en.nextElement();

            synchronized(serviceSearchCompletedEvent) {
                System.out.println("search services on " + btDevice.getBluetoothAddress() + " " + btDevice.getFriendlyName(false));
                LocalDevice.getLocalDevice().getDiscoveryAgent().searchServices(attrIDs, searchUuidSet, btDevice, listener);
                serviceSearchCompletedEvent.wait();
            }
        }

    }

}