SocketFactory

public interface SocketFactory

org.apache.http.conn.scheme.SocketFactory

Known indirect subclasses

LayeredSocketFactory	This interface was deprecated in API level 22. Please use `URL.openConnection()` instead. Please visit this webpage for further details.
SSLSocketFactory	This class was deprecated in API level 22. Please use `URL.openConnection()` instead. Please visit this webpage for further details.

This interface was deprecated in API level 22.
Please use URL.openConnection() instead. Please visit this webpage for further details.

A factory for creating and connecting sockets. The factory encapsulates the logic for establishing a socket connection.
Both Object.equals() and Object.hashCode() must be overridden for the correct operation of some connection managers.

Summary

Public methods
`abstract Socket`	`connectSocket(Socket sock, String host, int port, InetAddress localAddress, int localPort, HttpParams params)` Connects a socket to the given host.
`abstract Socket`	`createSocket()` Creates a new, unconnected socket.
`abstract boolean`	`isSecure(Socket sock)` Checks whether a socket provides a secure connection.

Public methods

connectSocket

Added in API level 1

public abstract Socket connectSocket (Socket sock, 
                String host, 
                int port, 
                InetAddress localAddress, 
                int localPort, 
                HttpParams params)

Connects a socket to the given host.

Parameters
`sock`	`Socket`: the socket to connect, as obtained from `createSocket`. `null` indicates that a new socket should be created and connected.
`host`	`String`: the host to connect to
`port`	`int`: the port to connect to on the host
`localAddress`	`InetAddress`: the local address to bind the socket to, or `null` for any
`localPort`	`int`: the port on the local machine, 0 or a negative number for any
`params`	`HttpParams`: additional `parameters` for connecting

Returns
`Socket`	the connected socket. The returned object may be different from the `sock` argument if this factory supports a layered protocol.

Throws
`IOException`	if an I/O error occurs
`UnknownHostException`	if the IP address of the target host can not be determined
`ConnectTimeoutException`	if the socket cannot be connected within the time limit defined in the `params`

createSocket

Added in API level 1

public abstract Socket createSocket ()

Creates a new, unconnected socket. The socket should subsequently be passed to connectSocket.

Returns
`Socket`	a new socket

Throws
`IOException`	if an I/O error occurs while creating the socket

isSecure

Added in API level 1

public abstract boolean isSecure (Socket sock)

Checks whether a socket provides a secure connection. The socket must be connected by this factory. The factory will not perform I/O operations in this method.
As a rule of thumb, plain sockets are not secure and TLS/SSL sockets are secure. However, there may be application specific deviations. For example, a plain socket to a host in the same intranet ("trusted zone") could be considered secure. On the other hand, a TLS/SSL socket could be considered insecure based on the cypher suite chosen for the connection.

Parameters
`sock`	`Socket`: the connected socket to check

Returns
`boolean`	`true` if the connection of the socket should be considered secure, or `false` if it should not

Throws
`IllegalArgumentException`	if the argument is invalid, for example because it is not a connected socket or was created by a different socket factory. Note that socket factories are not required to check these conditions, they may simply return a default value when called with an invalid socket argument.