bluetoothdevices.java

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package com.btsendfile;
import javax.bluetooth.*;
import java.util.Vector;
import java.util.Hashtable;
import java.util.Enumeration;
import java.io.IOException;
import java.lang.Thread;
import javax.swing.JFrame;
import java.awt.List;

/**
 *
 * @author vudra
 */
public class BluetoothDevices extends JFrame implements Runnable, DiscoveryListener {
	

	LocalDevice				local;
	private DiscoveryAgent	discoveryAgent;
	private Hashtable		bluetoothDevices	= new Hashtable();
	List					deviceList;
    private String btAddress;
	public BluetoothDevices() {
		// Device List
		deviceList = new List(0, false);

	}

	private void doBluetoothDiscovery() {

		Thread t = new Thread(this);
		t.start();

	}

	// Implement Runnable
	public void run() {

		bluetoothDiscovery();

	}

	public void printString(String s) {

		System.out.println(s);

	}

	public void bluetoothDiscovery() {

		LocalDevice localDevice;

		try {

			localDevice = LocalDevice.getLocalDevice();

		} catch (BluetoothStateException e) {

			printString("BluetoothStateException: " + e);
			return;

		}

		discoveryAgent = localDevice.getDiscoveryAgent();

		RemoteDevice devices[] = null;
        
		try {

			//devices = discoveryAgent.retrieveDevices(DiscoveryAgent.CACHED);
            
			if (devices != null) {

				for (int i = 0; i < devices.length; i++) {
					bluetoothDevices.put(devices[i].getFriendlyName(false), devices[i]);

					printString("Device (cached): " + devices[i].getFriendlyName(false) + " " + devices[i].getBluetoothAddress());
				}
			}
           
			//devices = discoveryAgent.retrieveDevices(DiscoveryAgent.PREKNOWN);
            
			if (devices != null) {

				for (int i = 0; i < devices.length; i++) {

					bluetoothDevices.put(devices[i].getFriendlyName(false), devices[i]);

					printString("Device (cached): " + devices[i].getFriendlyName(false) + " " + devices[i].getBluetoothAddress());

				}
			}

		} catch (IOException e) {
			printString("Exception (b2): " + e);
		}
        
		try {

			discoveryAgent.startInquiry(DiscoveryAgent.GIAC, this);

		} catch (BluetoothStateException e) {
			printString("Exception (b3): " + e);
		}

		printString("return from bluetoothDiscovery()");

	}
	

	private void bluetoothCopyDeviceTableToList() {

		// Remove old entries
		//for (int i = deviceList.size(); i > 0; i--) {
			//deviceList.delete(i - 1);
		//}

		// Append keys from table
		for (Enumeration e = bluetoothDevices.keys(); e.hasMoreElements();) {

			try {

				String name = (String) e.nextElement();
				//deviceList.add(name, null);

			} catch (Exception exception) {
			}
		}
		
	}

	// ************************************************
	// Implement BT DiscoveryListener
	// ************************************************
	public void deviceDiscovered(RemoteDevice btDevice, DeviceClass cod) {

		try {

			printString("deviceDisc: " + btDevice.getFriendlyName(false));
            printString("deviceAddress: " + btDevice.getBluetoothAddress());
            btAddress = btDevice.getBluetoothAddress();
			// Add Device to table
			bluetoothDevices.put(btDevice.getFriendlyName(false), btDevice);

		} catch (Exception e) {
			printString("Exception (b4): " + e);
		}

	}

	public void servicesDiscovered(int transID, ServiceRecord[] servRecord) {
	}

	public void serviceSearchCompleted(int transID, int respCode) {
	}

	public void inquiryCompleted(int discType) {

		printString("inquiryCompleted! " + discType);
		bluetoothCopyDeviceTableToList();

	}
    public String getBtAddress() {
		return btAddress;
	}

	public void setBtAddress(String btAddress) {
		this.btAddress = btAddress;
	}
	// ************************************************
	// ************************************************

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		BluetoothDevices bluetoothDevices = new BluetoothDevices();
		bluetoothDevices.bluetoothDiscovery();

	}

}