org.apache.commons.httpclient.protocol
Class Protocol

java.lang.Object
  org.apache.commons.httpclient.protocol.Protocol

public class Protocol
extends Object

A class to encapsulate the specifics of a protocol. This class class also provides the ability to customize the set and characteristics of the protocols used.

One use case for modifying the default set of protocols would be to set a custom SSL socket factory. This would look something like the following:

 
 Protocol myHTTPS = new Protocol( "https", new MySSLSocketFactory(), 443 );
 
 Protocol.registerProtocol( "https", myHTTPS );
 

Since:

2.0

Author:

Michael Becke, Jeff Dever, Mike Bowler

Constructor Summary

Protocol(String scheme, ProtocolSocketFactory factory, int defaultPort)
Constructs a new Protocol.

Method Summary

boolean	equals(Object obj) Return true if the specified object equals this object.
int	getDefaultPort() Returns the defaultPort.
static Protocol	getProtocol(String id) Gets the protocol with the given ID.
String	getScheme() Returns the scheme.
ProtocolSocketFactory	getSocketFactory() Returns the socketFactory.
int	hashCode() Return a hash code for this object
boolean	isSecure() Returns true if this protocol is secure
static void	registerProtocol(String id, Protocol protocol) Registers a new protocol with the given identifier.
int	resolvePort(int port) Resolves the correct port for this protocol.
String	toString() Return a string representation of this object.
static void	unregisterProtocol(String id) Unregisters the protocol with the given ID.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Protocol

public Protocol(String scheme,
                ProtocolSocketFactory factory,
                int defaultPort)

Constructs a new Protocol. Whether the created protocol is secure depends on the class of factory.

Parameters:

scheme - the scheme (e.g. http, https)

factory - the factory for creating sockets for communication using this protocol

defaultPort - the port this protocol defaults to

Method Detail

registerProtocol

public static void registerProtocol(String id,
                                    Protocol protocol)

Registers a new protocol with the given identifier. If a protocol with the given ID already exists it will be overridden. This ID is the same one used to retrieve the protocol from getProtocol(String).

Parameters:

id - the identifier for this protocol

protocol - the protocol to register

See Also:

getProtocol(String)

unregisterProtocol

public static void unregisterProtocol(String id)

Unregisters the protocol with the given ID.

Parameters:

id - the ID of the protocol to remove

getProtocol

public static Protocol getProtocol(String id)
                            throws IllegalStateException

Gets the protocol with the given ID.

Parameters:

id - the protocol ID

Returns:

Protocol a protocol

Throws:

IllegalStateException - if a protocol with the ID cannot be found

getDefaultPort

public int getDefaultPort()

Returns the defaultPort.

Returns:

int

getSocketFactory

public ProtocolSocketFactory getSocketFactory()

Returns the socketFactory. If secure the factory is a SecureProtocolSocketFactory.

Returns:

SocketFactory

getScheme

public String getScheme()

Returns the scheme.

Returns:

The scheme

isSecure

public boolean isSecure()

Returns true if this protocol is secure

Returns:

true if this protocol is secure

resolvePort

public int resolvePort(int port)

Resolves the correct port for this protocol. Returns the given port if valid or the default port otherwise.

Parameters:

port - the port to be resolved

Returns:

the given port or the defaultPort

toString

public String toString()

Return a string representation of this object.

Overrides:

toString in class Object

Returns:

a string representation of this object.

equals

public boolean equals(Object obj)

Return true if the specified object equals this object.

Overrides:

equals in class Object

Parameters:

obj - The object to compare against.

Returns:

true if the objects are equal.

hashCode

public int hashCode()

Return a hash code for this object

Overrides:

hashCode in class Object

Returns:

The hash code.