Class ProxySelector

Constructor Detail

• ProxySelector

  public ProxySelector()

Method Detail

• getDefault

  public static ProxySelector getDefault()

  Gets the system-wide proxy selector.

  Returns:

  the system-wide ProxySelector

  Throws:

  SecurityException - If a security manager has been installed and it denies NetPermission("getProxySelector")

  Since:

  1.5

  See Also:

  setDefault(ProxySelector)

• setDefault

  public static void setDefault(ProxySelector ps)

  Sets (or unsets) the system-wide proxy selector. Note: non-standard protocol handlers may ignore this setting.

  Parameters:

  ps - The HTTP proxy selector, or null to unset the proxy selector.

  Throws:

  SecurityException - If a security manager has been installed and it denies NetPermission("setProxySelector")

  Since:

  1.5

  See Also:

  getDefault()

• select

  public abstract List<Proxy> select(URI uri)

  Selects all the applicable proxies based on the protocol to access the resource with and a destination address to access the resource at. The format of the URI is defined as follow:

  • http URI for http connections
  • https URI for https connections
  • ftp URI for ftp connections
  • socket://host:port
    for tcp client sockets connections

  Parameters:

  uri - The URI that a connection is required to

  Returns:

  a List of Proxies. Each element in the the List is of type Proxy; when no proxy is available, the list will contain one element of type Proxy that represents a direct connection.

  Throws:

  IllegalArgumentException - if the argument is null

• connectFailed

  public abstract void connectFailed(URI uri,
                   SocketAddress sa,
                   IOException ioe)

  Called to indicate that a connection could not be established to a proxy/socks server. An implementation of this method can temporarily remove the proxies or reorder the sequence of proxies returned by select(URI), using the address and the IOException caught when trying to connect.

  Parameters:

  uri - The URI that the proxy at sa failed to serve.

  sa - The socket address of the proxy/SOCKS server

  ioe - The I/O exception thrown when the connect failed.

  Throws:

  IllegalArgumentException - if either argument is null