nl.justobjects.pushlet.core
Class BrowserAdapter

java.lang.Object
  nl.justobjects.pushlet.core.BrowserAdapter

All Implemented Interfaces:

ClientAdapter, Protocol

public class BrowserAdapter

extends java.lang.Object

implements ClientAdapter, Protocol

Generic implementation of ClientAdapter for browser clients.

Version:

$Id: BrowserAdapter.java,v 1.6 2007/11/09 13:15:35 justb Exp $

Author:

Just van den Broecke - Just Objects ©

Field Summary

private int	bytesSent
static java.lang.String	END_DOCUMENT
private java.io.PrintWriter	servletOut
private javax.servlet.http.HttpServletResponse	servletRsp
static java.lang.String	START_DOCUMENT

Fields inherited from interface nl.justobjects.pushlet.core.Protocol

DEFAULT_SERVLET_URI, E_ABORT, E_DATA, E_HEARTBEAT, E_HEARTBEAT_ACK, E_JOIN, E_JOIN_ACK, E_JOIN_LISTEN, E_JOIN_LISTEN_ACK, E_LEAVE, E_LEAVE_ACK, E_LISTEN, E_LISTEN_ACK, E_NACK, E_PUBLISH, E_PUBLISH_ACK, E_REFRESH, E_REFRESH_ACK, E_SUBSCRIBE, E_SUBSCRIBE_ACK, E_UNSUBSCRIBE, E_UNSUBSCRIBE_ACK, FORMAT_JAVASCRIPT, FORMAT_SERIALIZED_JAVA_OBJECT, FORMAT_XML, FORMAT_XML_STRICT, MODE_POLL, MODE_PULL, MODE_STREAM, P_EVENT, P_FORMAT, P_FROM, P_ID, P_MODE, P_REASON, P_SEQ, P_SUBJECT, P_SUBSCRIPTION_ID, P_SUBSCRIPTION_LABEL, P_TIME, P_TO, P_URL, P_WAIT, SUBJECT_META, SUBJECT_META_JOINS, SUBJECT_META_SUBS

Constructor Summary

BrowserAdapter(javax.servlet.http.HttpServletResponse aServletResponse)
Constructor.

Method Summary

protected java.lang.String	event2JavaScript(Event event) Converts the Java Event to a JavaScript function call in browser page.
void	push(Event anEvent) Push Event to client.
protected void	send(java.lang.String s) Send any string to browser.
void	start() Generic init.
void	stop() End HTML page in client browser.

Methods inherited from class java.lang.Object

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

Field Detail

START_DOCUMENT

public static final java.lang.String START_DOCUMENT

See Also:

Constant Field Values

END_DOCUMENT

public static final java.lang.String END_DOCUMENT

See Also:

Constant Field Values

servletOut

private java.io.PrintWriter servletOut

servletRsp

private javax.servlet.http.HttpServletResponse servletRsp

bytesSent

private int bytesSent

Constructor Detail

BrowserAdapter

public BrowserAdapter(javax.servlet.http.HttpServletResponse aServletResponse)

Constructor.

Method Detail

start

public void start()
           throws java.io.IOException

Generic init.

Specified by:

start in interface ClientAdapter

Throws:

java.io.IOException

push

public void push(Event anEvent)
          throws java.io.IOException

Push Event to client.

Specified by:

push in interface ClientAdapter

Throws:

java.io.IOException

stop

public void stop()

End HTML page in client browser.

Specified by:

stop in interface ClientAdapter

send

protected void send(java.lang.String s)
             throws java.io.IOException

Send any string to browser.

Throws:

java.io.IOException

event2JavaScript

protected java.lang.String event2JavaScript(Event event)
                                     throws java.io.IOException

Converts the Java Event to a JavaScript function call in browser page.

Throws:

java.io.IOException