IT. Expert System.

public final class DnsPinger
extends Handler

• Nested Class Summary

  • Nested classes/interfaces inherited from class android.os.Handler

    Handler.Callback

• Field Summary

  Fields

  Modifier and Type	Field and Description
  static int	DNS_PING_RESULT Async response packet for dns pings.
  static int	SOCKET_EXCEPTION An error code for a DNS_PING_RESULT packet
  static int	TIMEOUT An error code for a DNS_PING_RESULT packet

• Constructor Summary

  Constructors

  Constructor and Description
  DnsPinger(Context context, String TAG, Looper looper, Handler target, int connectionType)

• Method Summary

  Methods

  Modifier and Type	Method and Description
  void	cancelPings()
  List<InetAddress>	getDnsList() Returns a list of DNS addresses, coming from either the link properties of the specified connection or the default system DNS if the link properties has no dnses.
  void	handleMessage(Message msg) Subclasses must implement this to receive messages.
  int	pingDnsAsync(InetAddress dns, int timeout, int delay) Send a ping.

  • Methods inherited from class android.os.Handler

    dispatchMessage, dump, getLooper, getMessageName, hasCallbacks, hasMessages, hasMessages, obtainMessage, obtainMessage, obtainMessage, obtainMessage, obtainMessage, post, postAtFrontOfQueue, postAtTime, postAtTime, postDelayed, removeCallbacks, removeCallbacks, removeCallbacksAndMessages, removeMessages, removeMessages, runWithScissors, sendEmptyMessage, sendEmptyMessageAtTime, sendEmptyMessageDelayed, sendMessage, sendMessageAtFrontOfQueue, sendMessageAtTime, sendMessageDelayed, toString

  • Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

• Field Detail

  • DNS_PING_RESULT

    public static final int DNS_PING_RESULT

    Async response packet for dns pings. arg1 is the ID of the ping, also returned by pingDnsAsync(InetAddress, int, int) arg2 is the delay, or is negative on error.

    See Also:

    Constant Field Values

  • TIMEOUT

    public static final int TIMEOUT

    An error code for a DNS_PING_RESULT packet

    See Also:

    Constant Field Values

  • SOCKET_EXCEPTION

    public static final int SOCKET_EXCEPTION

    An error code for a DNS_PING_RESULT packet

    See Also:

    Constant Field Values

• Constructor Detail

  • DnsPinger

    public DnsPinger(Context context,
             String TAG,
             Looper looper,
             Handler target,
             int connectionType)

• Method Detail

  • handleMessage

    public void handleMessage(Message msg)

    Description copied from class: Handler
    Subclasses must implement this to receive messages.

    Overrides:

    handleMessage in class Handler

  • getDnsList

    public List<InetAddress> getDnsList()

    Returns a list of DNS addresses, coming from either the link properties of the specified connection or the default system DNS if the link properties has no dnses.

    Returns:

    a non-empty non-null list

  • pingDnsAsync

    public int pingDnsAsync(InetAddress dns,
                   int timeout,
                   int delay)

    Send a ping. The response will come via a DNS_PING_RESULT to the handler specified at creation.

    Parameters:

    dns - address of dns server to ping

    timeout - timeout for ping

    Returns:

    an ID field, which will also be included in the DNS_PING_RESULT message.

  • cancelPings

    public void cancelPings()