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org.vrspace.server
Class Session  

java.lang.Object
  java.util.Observable
      org.vrspace.server.Session

All Implemented Interfaces:

java.lang.Runnable

Direct Known Subclasses:

BinarySession, PipedSession

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public class Session

extends java.util.Observable

implements java.lang.Runnable

A Session is constructed and started when a client connects to the server.
If client authenticates passes, session calls Dispatcher.login()
Should it be a OwnedDBObject? Could we store session state then?

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Nested Class Summary
class	Session.Status           Session status info

 

Field Summary
protected  boolean	active
protected  boolean	cacheRequests
protected  Client	client
protected  boolean	daemon
protected  Dispatcher	dispatcher
protected  long	lastTime
protected  java.lang.String	lf
private  java.lang.String	login
private  java.lang.String	password
private  java.io.BufferedReader	reader
protected  long	receivedChars
protected  long	receivedRequests
private  java.util.LinkedList	requests
static java.lang.String	RESPONSE_ERR
static java.lang.String	RESPONSE_NONE
static java.lang.String	RESPONSE_OK
protected  long	sentChars
protected  long	sentRequests
protected  Server	server
protected  java.net.Socket	socket
protected  long	startTime
protected  long	stopTime
static char	TERMINATOR
protected  java.io.PrintWriter	writer

 

Fields inherited from class java.util.Observable

 

Constructor Summary
protected	Session()
	Session(Server server, java.net.Socket s, Dispatcher d)           Constructor, called by Server

 

Method Summary
void	close()           end session
void	flushRequests()           flush cached requests
java.lang.String	getId()           Returns the session id in format remoteHost:remotePort
Session.Status	getStatus()           Returns session status
boolean	isActive()           active?
protected  java.lang.String	read()           Returns one line read from the network.
protected  void	readln()           Reads lines from the socket and calls Client.request().
void	run()           Main loop, started from Server.
void	sendError(Request r)           write( "-"+ r ) - ERROR response to a request
void	sendRequest(Request r)           Sends a request to the client
void	sendResponse(Request r)           write( "+"+ r ) - OK response to a request
protected  void	write(java.lang.String type, org.vrspace.util.Message r)           Sends response r of type type to the client, appending TERMINATOR as necessary.

 

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

 

Methods inherited from class java.lang.Object

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

 

Field Detail

RESPONSE_OK

public static final java.lang.String RESPONSE_OK

See Also:

Constant Field Values

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RESPONSE_ERR

public static final java.lang.String RESPONSE_ERR

See Also:

Constant Field Values

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RESPONSE_NONE

public static final java.lang.String RESPONSE_NONE

See Also:

Constant Field Values

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socket

protected java.net.Socket socket

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dispatcher

protected Dispatcher dispatcher

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client

protected Client client

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reader

private java.io.BufferedReader reader

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writer

protected java.io.PrintWriter writer

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TERMINATOR

public static final char TERMINATOR

See Also:

Constant Field Values

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login

private java.lang.String login

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password

private java.lang.String password

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active

protected boolean active

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cacheRequests

protected boolean cacheRequests

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requests

private java.util.LinkedList requests

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lf

protected java.lang.String lf

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sentChars

protected long sentChars

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sentRequests

protected long sentRequests

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receivedChars

protected long receivedChars

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receivedRequests

protected long receivedRequests

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startTime

protected long startTime

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stopTime

protected long stopTime

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lastTime

protected long lastTime

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daemon

protected boolean daemon

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server

protected Server server

Constructor Detail

Session

protected Session()

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Session

public Session(Server server,
               java.net.Socket s,
               Dispatcher d)
        throws java.lang.Exception

Constructor, called by Server

Method Detail

run

public void run()

Main loop, started from Server. After authentication, calls readln() method which actualy reads the data during the session.

Specified by:

run in interface java.lang.Runnable

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readln

protected void readln()

Reads lines from the socket and calls Client.request(). Uses read() method to read one line from the client.

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read

protected java.lang.String read()
                         throws java.io.IOException,
                                org.vrspace.util.ConnectionException

Returns one line read from the network.

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write

protected void write(java.lang.String type,
                     org.vrspace.util.Message r)

Sends response r of type type to the client, appending TERMINATOR as necessary.

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sendResponse

public void sendResponse(Request r)

write( "+"+ r ) - OK response to a request

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sendError

public void sendError(Request r)

write( "-"+ r ) - ERROR response to a request

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sendRequest

public void sendRequest(Request r)

Sends a request to the client

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flushRequests

public void flushRequests()

flush cached requests

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close

public void close()

end session

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getId

public java.lang.String getId()

Returns the session id in format remoteHost:remotePort

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isActive

public boolean isActive()

active?

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getStatus

public Session.Status getStatus()

Returns session status

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> vrspace >> [ server overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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