Package org.apache.commons.net

Class DefaultSocketFactory

java.lang.Object

javax.net.SocketFactory

org.apache.commons.net.DefaultSocketFactory

public class DefaultSocketFactory
extends SocketFactory

DefaultSocketFactory implements the SocketFactory interface by simply wrapping the java.net.Socket and java.net.ServerSocket constructors. It is the default SocketFactory used by SocketClient implementations.

See Also:

• SocketFactory
• SocketClient
• SocketClient.setSocketFactory(javax.net.SocketFactory)

Constructor Summary

Constructors

Constructor	Description
DefaultSocketFactory()	Constructs a new instance.
DefaultSocketFactory(Proxy proxy)	A constructor for sockets with proxy support.

Method Summary

Modifier and Type	Method	Description
ServerSocket	createServerSocket(int port)	Creates a ServerSocket bound to a specified port.
ServerSocket	createServerSocket(int port, int backlog)	Creates a ServerSocket bound to a specified port with a given maximum queue length for incoming connections.
ServerSocket	createServerSocket(int port, int backlog, InetAddress bindAddr)	Creates a ServerSocket bound to a specified port on a given local address with a given maximum queue length for incoming connections.
Socket	createSocket()	Creates an unconnected Socket.
Socket	createSocket(String host, int port)	Creates a Socket connected to the given host and port.
Socket	createSocket(String host, int port, InetAddress localAddr, int localPort)	Creates a Socket connected to the given host and port and originating from the specified local address and port.
Socket	createSocket(InetAddress address, int port)	Creates a Socket connected to the given host and port.
Socket	createSocket(InetAddress address, int port, InetAddress localAddr, int localPort)	Creates a Socket connected to the given host and port and originating from the specified local address and port.

Methods inherited from class javax.net.SocketFactory

getDefault

Methods inherited from class java.lang.Object

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

Constructor Details

DefaultSocketFactory

public DefaultSocketFactory()

Constructs a new instance.

DefaultSocketFactory

public DefaultSocketFactory(Proxy proxy)

A constructor for sockets with proxy support.

Parameters:

proxy - The Proxy to use when creating new Sockets.

Since:

3.2

Method Details

createServerSocket

public ServerSocket createServerSocket(int port)
                                throws IOException

Creates a ServerSocket bound to a specified port. A port of 0 will create the ServerSocket on a system-determined free port.

Parameters:

port - The port on which to listen, or 0 to use any free port.

Returns:

A ServerSocket that will listen on a specified port.

Throws:

IOException - If an I/O error occurs while creating the ServerSocket.

createServerSocket

public ServerSocket createServerSocket(int port,
 int backlog)
                                throws IOException

Creates a ServerSocket bound to a specified port with a given maximum queue length for incoming connections. A port of 0 will create the ServerSocket on a system-determined free port.

Parameters:

port - The port on which to listen, or 0 to use any free port.

backlog - The maximum length of the queue for incoming connections.

Returns:

A ServerSocket that will listen on a specified port.

Throws:

IOException - If an I/O error occurs while creating the ServerSocket.

createServerSocket

public ServerSocket createServerSocket(int port,
 int backlog,
 InetAddress bindAddr)
                                throws IOException

Creates a ServerSocket bound to a specified port on a given local address with a given maximum queue length for incoming connections. A port of 0 will create the ServerSocket on a system-determined free port.

Parameters:

port - The port on which to listen, or 0 to use any free port.

backlog - The maximum length of the queue for incoming connections.

bindAddr - The local address to which the ServerSocket should bind.

Returns:

A ServerSocket that will listen on a specified port.

Throws:

IOException - If an I/O error occurs while creating the ServerSocket.

createSocket

public Socket createSocket()
                    throws IOException

Creates an unconnected Socket.

Overrides:

createSocket in class SocketFactory

Returns:

A new unconnected Socket.

Throws:

IOException - If an I/O error occurs while creating the Socket.

Since:

3.2

createSocket

public Socket createSocket(InetAddress address,
 int port)
                    throws IOException

Creates a Socket connected to the given host and port.

Specified by:

createSocket in class SocketFactory

Parameters:

address - The address of the host to connect to.

port - The port to connect to.

Returns:

A Socket connected to the given host and port.

Throws:

IOException - If an I/O error occurs while creating the Socket.

createSocket

public Socket createSocket(InetAddress address,
 int port,
 InetAddress localAddr,
 int localPort)
                    throws IOException

Creates a Socket connected to the given host and port and originating from the specified local address and port.

Specified by:

createSocket in class SocketFactory

Parameters:

address - The address of the host to connect to.

port - The port to connect to.

localAddr - The local address to use.

localPort - The local port to use.

Returns:

A Socket connected to the given host and port.

Throws:

IOException - If an I/O error occurs while creating the Socket.

createSocket

public Socket createSocket(String host,
 int port)
                    throws UnknownHostException,
IOException

Creates a Socket connected to the given host and port.

Specified by:

createSocket in class SocketFactory

Parameters:

host - The hostname to connect to.

port - The port to connect to.

Returns:

A Socket connected to the given host and port.

Throws:

UnknownHostException - If the hostname cannot be resolved.

IOException - If an I/O error occurs while creating the Socket.

createSocket

public Socket createSocket(String host,
 int port,
 InetAddress localAddr,
 int localPort)
                    throws UnknownHostException,
IOException

Creates a Socket connected to the given host and port and originating from the specified local address and port.

Specified by:

createSocket in class SocketFactory

Parameters:

host - The hostname to connect to.

port - The port to connect to.

localAddr - The local address to use.

localPort - The local port to use.

Returns:

A Socket connected to the given host and port.

Throws:

UnknownHostException - If the hostname cannot be resolved.

IOException - If an I/O error occurs while creating the Socket.