fr.xebia.servlet.filter
Class ExpiresFilter.XHttpServletResponse

java.lang.Object
  javax.servlet.ServletResponseWrapper
      javax.servlet.http.HttpServletResponseWrapper
          fr.xebia.servlet.filter.ExpiresFilter.XHttpServletResponse

All Implemented Interfaces:

javax.servlet.http.HttpServletResponse, javax.servlet.ServletResponse

Enclosing class:

ExpiresFilter

public class ExpiresFilter.XHttpServletResponse
extends javax.servlet.http.HttpServletResponseWrapper

Wrapping extension of the HttpServletResponse to yrap the "Start Write Response Body" event.

For performance optimization, this extended response only holds the lastModifiedHeader and cacheControlHeader instead of holding the full list of headers.

Field Summary

Fields inherited from interface javax.servlet.http.HttpServletResponse

SC_ACCEPTED, SC_BAD_GATEWAY, SC_BAD_REQUEST, SC_CONFLICT, SC_CONTINUE, SC_CREATED, SC_EXPECTATION_FAILED, SC_FORBIDDEN, SC_FOUND, SC_GATEWAY_TIMEOUT, SC_GONE, SC_HTTP_VERSION_NOT_SUPPORTED, SC_INTERNAL_SERVER_ERROR, SC_LENGTH_REQUIRED, SC_METHOD_NOT_ALLOWED, SC_MOVED_PERMANENTLY, SC_MOVED_TEMPORARILY, SC_MULTIPLE_CHOICES, SC_NO_CONTENT, SC_NON_AUTHORITATIVE_INFORMATION, SC_NOT_ACCEPTABLE, SC_NOT_FOUND, SC_NOT_IMPLEMENTED, SC_NOT_MODIFIED, SC_OK, SC_PARTIAL_CONTENT, SC_PAYMENT_REQUIRED, SC_PRECONDITION_FAILED, SC_PROXY_AUTHENTICATION_REQUIRED, SC_REQUEST_ENTITY_TOO_LARGE, SC_REQUEST_TIMEOUT, SC_REQUEST_URI_TOO_LONG, SC_REQUESTED_RANGE_NOT_SATISFIABLE, SC_RESET_CONTENT, SC_SEE_OTHER, SC_SERVICE_UNAVAILABLE, SC_SWITCHING_PROTOCOLS, SC_TEMPORARY_REDIRECT, SC_UNAUTHORIZED, SC_UNSUPPORTED_MEDIA_TYPE, SC_USE_PROXY

Constructor Summary

ExpiresFilter.XHttpServletResponse(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)

Method Summary

void	addDateHeader(String name, long date)
void	addHeader(String name, String value)
String	getCacheControlHeader()
long	getLastModifiedHeader()
javax.servlet.ServletOutputStream	getOutputStream()
int	getStatus()
PrintWriter	getWriter()
boolean	isLastModifiedHeaderSet()
boolean	isWriteResponseBodyStarted()
void	sendError(int sc)
void	sendError(int sc, String msg)
void	sendRedirect(String location)
void	setDateHeader(String name, long date)
void	setHeader(String name, String value)
void	setStatus(int sc)
void	setStatus(int sc, String sm)
void	setWriteResponseBodyStarted(boolean writeResponseBodyStarted)

Methods inherited from class javax.servlet.http.HttpServletResponseWrapper

addCookie, addIntHeader, containsHeader, encodeRedirectUrl, encodeRedirectURL, encodeUrl, encodeURL, setIntHeader

Methods inherited from class javax.servlet.ServletResponseWrapper

flushBuffer, getBufferSize, getCharacterEncoding, getContentType, getLocale, getResponse, isCommitted, reset, resetBuffer, setBufferSize, setCharacterEncoding, setContentLength, setContentType, setLocale, setResponse

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.servlet.ServletResponse

flushBuffer, getBufferSize, getCharacterEncoding, getContentType, getLocale, isCommitted, reset, resetBuffer, setBufferSize, setCharacterEncoding, setContentLength, setContentType, setLocale

Constructor Detail

ExpiresFilter.XHttpServletResponse

public ExpiresFilter.XHttpServletResponse(javax.servlet.http.HttpServletRequest request,
                                          javax.servlet.http.HttpServletResponse response)

Method Detail

addDateHeader

public void addDateHeader(String name,
                          long date)

Specified by:

addDateHeader in interface javax.servlet.http.HttpServletResponse

Overrides:

addDateHeader in class javax.servlet.http.HttpServletResponseWrapper

addHeader

public void addHeader(String name,
                      String value)

Specified by:

addHeader in interface javax.servlet.http.HttpServletResponse

Overrides:

addHeader in class javax.servlet.http.HttpServletResponseWrapper

getCacheControlHeader

public String getCacheControlHeader()

isLastModifiedHeaderSet

public boolean isLastModifiedHeaderSet()

getLastModifiedHeader

public long getLastModifiedHeader()

getOutputStream

public javax.servlet.ServletOutputStream getOutputStream()
                                                  throws IOException

Specified by:

getOutputStream in interface javax.servlet.ServletResponse

Overrides:

getOutputStream in class javax.servlet.ServletResponseWrapper

Throws:

IOException

getStatus

public int getStatus()

getWriter

public PrintWriter getWriter()
                      throws IOException

Specified by:

getWriter in interface javax.servlet.ServletResponse

Overrides:

getWriter in class javax.servlet.ServletResponseWrapper

Throws:

IOException

isWriteResponseBodyStarted

public boolean isWriteResponseBodyStarted()

sendError

public void sendError(int sc)
               throws IOException

Specified by:

sendError in interface javax.servlet.http.HttpServletResponse

Overrides:

sendError in class javax.servlet.http.HttpServletResponseWrapper

Throws:

IOException

sendError

public void sendError(int sc,
                      String msg)
               throws IOException

Specified by:

sendError in interface javax.servlet.http.HttpServletResponse

Overrides:

sendError in class javax.servlet.http.HttpServletResponseWrapper

Throws:

IOException

sendRedirect

public void sendRedirect(String location)
                  throws IOException

Specified by:

sendRedirect in interface javax.servlet.http.HttpServletResponse

Overrides:

sendRedirect in class javax.servlet.http.HttpServletResponseWrapper

Throws:

IOException

setDateHeader

public void setDateHeader(String name,
                          long date)

Specified by:

setDateHeader in interface javax.servlet.http.HttpServletResponse

Overrides:

setDateHeader in class javax.servlet.http.HttpServletResponseWrapper

setHeader

public void setHeader(String name,
                      String value)

Specified by:

setHeader in interface javax.servlet.http.HttpServletResponse

Overrides:

setHeader in class javax.servlet.http.HttpServletResponseWrapper

setStatus

public void setStatus(int sc)

Specified by:

setStatus in interface javax.servlet.http.HttpServletResponse

Overrides:

setStatus in class javax.servlet.http.HttpServletResponseWrapper

setStatus

public void setStatus(int sc,
                      String sm)

Specified by:

setStatus in interface javax.servlet.http.HttpServletResponse

Overrides:

setStatus in class javax.servlet.http.HttpServletResponseWrapper

setWriteResponseBodyStarted

public void setWriteResponseBodyStarted(boolean writeResponseBodyStarted)