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Class semper.comm.ComPointHTTP

java.lang.Object
   |
   +----semper.comm.ComPointTCP
           |
           +----semper.comm.ComPointHTTP

public class ComPointHTTP

extends ComPointTCP

Version:

beta-4, 12.8.96

Author:

Mehdi Nassehi

ComPointHTTP()

Creats a ComPointHTTP.

ComPointHTTP(int, ComPointAddress)

Creats an initiator or server ComPointHTTP.

accept()

Waits for and returns a Responder ComPoint when a message arrives.

close()

Closes the ComPointHTTP.

comPoint(int, ComPointAddress)

Creats an Initiator or Server ComPointHTTP cast into ComPoint.

finalize()

Finalizer.

getLocalAddress()

Returns the local address.

getProtocol()

Returns the protocol.

getRemoteAddress()

Returns the peer address.

init()

Initializes the module.

isInitialized()

Check whether the module is initialized.

isProxyConfigured()

Check whether a proxy is configured.

read()

Waits for and returns a message received on the ComPoint, which must be either an Initiator or a Responder.

write(Serializable)

Sends the message through the ComPoint, which must be either an Initiator or a Responder.

 public ComPointHTTP()

Creats a ComPointHTTP.

 public ComPointHTTP(int type,
                     ComPointAddress address) throws ComPointException

Creats an initiator or server ComPointHTTP.

Parameters:

type - type of ComPointHTTP to be created, initiator or server

address - if the type is server, the local address; otherwise, the remote address.

Throws: ComPointException

if type is invalid or the socket cannot be opened.

 public static void init()

Initializes the module.

 public static boolean isInitialized()

Check whether the module is initialized.

Returns:

true if and only if fully initialized;

 public static boolean isProxyConfigured()

Check whether a proxy is configured.

Returns:

true if and only if a proxy configured;

 public ComPoint comPoint(int type,
                          ComPointAddress address) throws ComPointException

Creats an Initiator or Server ComPointHTTP cast into ComPoint.

Parameters:

type - type of ComPointHTTP to be created

address - if the type is server, the local address; otherwise, the remote address.

Throws: ComPointException

if type is invalid or the socket cannot be opened.

Overrides:

comPoint in class ComPointTCP

 public void close() throws ComPointException

Closes the ComPointHTTP.

Throws: ComPointException

if type is invalid or encountered an error while error while closing the socket.

Overrides:

close in class ComPointTCP

 protected void finalize()

Finalizer.

Overrides:

finalize in class ComPointTCP

 public String getProtocol()

Returns the protocol.

Overrides:

getProtocol in class ComPointTCP

 public ComPointAddress getLocalAddress()

Returns the local address. Note: we always return the canonical IP address for the host; this should be the most portable (e.g when $ sending a compointaddress from one host to another)

Overrides:

getLocalAddress in class ComPointTCP

 public ComPointAddress getRemoteAddress()

Returns the peer address. Note: we always return the canonical IP address for the host; this should be the most portable (e.g when $ sending a compointaddress from one host to another) Note: the remote address is not garantueed to be the correct one ! firewalls/proxies can result in a address which is not really the address of the original originator and doesn't allow a callback. In most cases though such situations anyway don't allow any callback ...

Overrides:

getRemoteAddress in class ComPointTCP

 public synchronized void write(Serializable message) throws ComPointException

Sends the message through the ComPoint, which must be either an Initiator or a Responder.

Parameters:

message - message to be sent.

Throws: ComPointException

if the type is invalid or encountered an error while externalizing the message.

Overrides:

write in class ComPointTCP

 public synchronized Serializable read() throws ComPointException

Waits for and returns a message received on the ComPoint, which must be either an Initiator or a Responder.

Throws: ComPointException

if the ComPoint type or HTTP type is invalid or encountered an error while internalizing the message.

Overrides:

read in class ComPointTCP

 public synchronized ComPoint accept() throws ComPointException

Waits for and returns a Responder ComPoint when a message arrives. Must be invoked on a ComPoint of type Server.

Throws: ComPointException

if the type is invalid or encountered an error while accepting a new socket.

Overrides:

accept in class ComPointTCP

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