er.extensions.appserver
Class ERXKeepAliveResponse

java.lang.Object
  com.webobjects.appserver.WOMessage
      com.webobjects.appserver.WOResponse
          er.extensions.appserver.ERXResponse
              er.extensions.appserver.ERXKeepAliveResponse

All Implemented Interfaces:

com.webobjects.appserver.WOActionResults, com.webobjects.foundation.NSKeyValueCoding, com.webobjects.foundation.NSKeyValueCoding.ErrorHandling, com.webobjects.foundation.NSKeyValueCodingAdditions, java.lang.Cloneable

public class ERXKeepAliveResponse
extends ERXResponse

Special response that keeps the connection alive and pushes the data to the client. It does this by opening a stream that has small buffer but huge length.

Author:

ak

Nested Class Summary

Nested classes/interfaces inherited from class er.extensions.appserver.ERXResponse

ERXResponse.Context

Nested classes/interfaces inherited from interface com.webobjects.foundation.NSKeyValueCodingAdditions

com.webobjects.foundation.NSKeyValueCodingAdditions.DefaultImplementation, com.webobjects.foundation.NSKeyValueCodingAdditions.Utility

Nested classes/interfaces inherited from interface com.webobjects.foundation.NSKeyValueCoding

com.webobjects.foundation.NSKeyValueCoding._BooleanFieldBinding, com.webobjects.foundation.NSKeyValueCoding._BooleanMethodBinding, com.webobjects.foundation.NSKeyValueCoding._FieldBinding, com.webobjects.foundation.NSKeyValueCoding._ForwardingBinding, com.webobjects.foundation.NSKeyValueCoding._KeyBinding, com.webobjects.foundation.NSKeyValueCoding._KeyBindingCreation, com.webobjects.foundation.NSKeyValueCoding._MethodBinding, com.webobjects.foundation.NSKeyValueCoding._NumberFieldBinding, com.webobjects.foundation.NSKeyValueCoding._NumberMethodBinding, com.webobjects.foundation.NSKeyValueCoding._ReflectionKeyBindingCreation, com.webobjects.foundation.NSKeyValueCoding.ErrorHandling, com.webobjects.foundation.NSKeyValueCoding.Null, com.webobjects.foundation.NSKeyValueCoding.UnknownKeyException, com.webobjects.foundation.NSKeyValueCoding.ValueAccessor

Field Summary

protected byte[]	_current Current data to write to client.
protected int	_currentIndex Current index in
protected java.util.Queue<byte[]>	_queue Queue to push the items into.
protected static org.apache.log4j.Logger	log

Fields inherited from class er.extensions.appserver.ERXResponse

ContentDispositionHeaderKey, ContentTypeHeaderKey, DisablePageCachingKey

Fields inherited from class com.webobjects.appserver.WOResponse

_contentInputStream, _contentInputStreamBufferSize, _contentInputStreamLength

Fields inherited from class com.webobjects.appserver.WOMessage

_content, _contentData, _contentEncoding, _cookies, _headers, _httpVersion, _TheCookieKey, _TheSetCookieKey, _userInfo, HTTP_STATUS_FORBIDDEN, HTTP_STATUS_FOUND, HTTP_STATUS_INTERNAL_ERROR, HTTP_STATUS_MOVED_PERMANENTLY, HTTP_STATUS_NO_CONTENT, HTTP_STATUS_NOT_FOUND, HTTP_STATUS_OK, TheDefaultResponseEncoding

Fields inherited from interface com.webobjects.foundation.NSKeyValueCoding.ErrorHandling

_CLASS

Fields inherited from interface com.webobjects.foundation.NSKeyValueCodingAdditions

_CLASS, _KeyPathSeparatorChar, KeyPathSeparator

Fields inherited from interface com.webobjects.foundation.NSKeyValueCoding

NullValue

Constructor Summary

ERXKeepAliveResponse()

Method Summary

void	push(byte[] data) Enqueues the data.
void	push(java.lang.String str) Enqueues the data for this string using the response encoding.
void	reset() Resets the response by clearing out the current item and notifying the queue.

Methods inherited from class er.extensions.appserver.ERXResponse

__setContent, _appendTagAttributeAndValue, _finalizeInContext, contentDisposition, contentType, disableClientCaching, isAttachment, isHTML, isIE, isPageCachingDisabled, isXHTML, mark, popContent, popPartial, pushContent, pushPartial, setUserInfoForKey, setXHTML, userInfoForKey

Methods inherited from class com.webobjects.appserver.WOResponse

_isClientCachingDisabled, _redirectionResponseForAbsoluteURL, _redirectResponse, clone, contentInputStream, contentInputStreamBufferSize, contentInputStreamLength, generateResponse, setContentStream, setStatus, status, toString

Methods inherited from class com.webobjects.appserver.WOMessage

_appendContentAsciiString, _contentLength, _finalizeCookies, _initCookies, _setHeader, _setHeaders, _stringByEscapingString, addCookie, appendContentCharacter, appendContentData, appendContentDOMDocumentFragment, appendContentHTMLAttributeValue, appendContentHTMLString, appendContentString, appendHeader, appendHeaders, canAccessFieldsDirectly, content, contentAsDOMDocument, contentEncoding, contentString, cookies, defaultEncoding, defaultURLEncoding, equals, handleQueryWithUnboundKey, handleTakeValueForUnboundKey, headerForKey, headerKeys, headers, headersForKey, httpVersion, removeCookie, removeHeadersForKey, requiresHTMLEscaping, setContent, setContent, setContent, setContentDOMDocument, setContentEncoding, setDefaultEncoding, setDefaultURLEncoding, setHeader, setHeaders, setHeaders, setHTTPVersion, setUserInfo, stringByEscapingHTMLAttributeValue, stringByEscapingHTMLString, takeValueForKey, takeValueForKeyPath, unableToSetNullForKey, userInfo, valueForKey, valueForKeyPath

Methods inherited from class java.lang.Object

finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

log

protected static final org.apache.log4j.Logger log

_queue

protected java.util.Queue<byte[]> _queue

Queue to push the items into.

_current

protected byte[] _current

Current data to write to client.

_currentIndex

protected int _currentIndex

Current index in

Constructor Detail

ERXKeepAliveResponse

public ERXKeepAliveResponse()

Method Detail

push

public void push(java.lang.String str)

Enqueues the data for this string using the response encoding.

Parameters:

str - the string to push

push

public void push(byte[] data)

Enqueues the data.

Parameters:

data -

reset

public void reset()

Resets the response by clearing out the current item and notifying the queue.