Package org.apache.catalina.filters
Class ExpiresFilter.XHttpServletResponse
- java.lang.Object
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- javax.servlet.ServletResponseWrapper
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- javax.servlet.http.HttpServletResponseWrapper
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- org.apache.catalina.filters.ExpiresFilter.XHttpServletResponse
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- All Implemented Interfaces:
HttpServletResponse,ServletResponse
- Enclosing class:
- ExpiresFilter
public class ExpiresFilter.XHttpServletResponse extends HttpServletResponseWrapper
Wrapping extension of the
HttpServletResponseto yrap the "Start Write Response Body" event.For performance optimization : this extended response holds the
lastModifiedHeaderandcacheControlHeadervalues access to the slowHttpServletResponseWrapper.getHeader(String)and to spare thestringtodatetolongconversion.
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Field Summary
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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
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Constructor Summary
Constructors Constructor Description XHttpServletResponse(HttpServletRequest request, HttpServletResponse response)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidaddDateHeader(String name, long date)The default behavior of this method is to call addDateHeader(String name, long date) on the wrapped response object.voidaddHeader(String name, String value)The default behavior of this method is to return addHeader(String name, String value) on the wrapped response object.StringgetCacheControlHeader()longgetLastModifiedHeader()ServletOutputStreamgetOutputStream()The default behavior of this method is to return getOutputStream() on the wrapped response object.PrintWritergetWriter()The default behavior of this method is to return getWriter() on the wrapped response object.booleanisLastModifiedHeaderSet()booleanisWriteResponseBodyStarted()voidreset()The default behavior of this method is to call reset() on the wrapped response object.voidsetDateHeader(String name, long date)The default behavior of this method is to call setDateHeader(String name, long date) on the wrapped response object.voidsetHeader(String name, String value)The default behavior of this method is to return setHeader(String name, String value) on the wrapped response object.voidsetWriteResponseBodyStarted(boolean writeResponseBodyStarted)-
Methods inherited from class javax.servlet.http.HttpServletResponseWrapper
addCookie, addIntHeader, containsHeader, encodeRedirectUrl, encodeRedirectURL, encodeUrl, encodeURL, getHeader, getHeaderNames, getHeaders, getStatus, getTrailerFields, sendError, sendError, sendRedirect, setIntHeader, setStatus, setStatus, setTrailerFields
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Methods inherited from class javax.servlet.ServletResponseWrapper
flushBuffer, getBufferSize, getCharacterEncoding, getContentType, getLocale, getResponse, isCommitted, isWrapperFor, isWrapperFor, resetBuffer, setBufferSize, setCharacterEncoding, setContentLength, setContentLengthLong, setContentType, setLocale, setResponse
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface javax.servlet.ServletResponse
flushBuffer, getBufferSize, getCharacterEncoding, getContentType, getLocale, isCommitted, resetBuffer, setBufferSize, setCharacterEncoding, setContentLength, setContentLengthLong, setContentType, setLocale
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Constructor Detail
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XHttpServletResponse
public XHttpServletResponse(HttpServletRequest request, HttpServletResponse response)
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Method Detail
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addDateHeader
public void addDateHeader(String name, long date)
Description copied from class:javax.servlet.http.HttpServletResponseWrapperThe default behavior of this method is to call addDateHeader(String name, long date) on the wrapped response object.- Specified by:
addDateHeaderin interfaceHttpServletResponse- Overrides:
addDateHeaderin classHttpServletResponseWrapper- Parameters:
name- the name of the header to setdate- the additional date value- See Also:
HttpServletResponse.setDateHeader(java.lang.String, long)
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addHeader
public void addHeader(String name, String value)
Description copied from class:javax.servlet.http.HttpServletResponseWrapperThe default behavior of this method is to return addHeader(String name, String value) on the wrapped response object.- Specified by:
addHeaderin interfaceHttpServletResponse- Overrides:
addHeaderin classHttpServletResponseWrapper- Parameters:
name- the name of the headervalue- the additional header value If it contains octet string, it should be encoded according to RFC 2047 (http://www.ietf.org/rfc/rfc2047.txt)- See Also:
HttpServletResponse.setHeader(java.lang.String, java.lang.String)
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getCacheControlHeader
public String getCacheControlHeader()
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getLastModifiedHeader
public long getLastModifiedHeader()
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getOutputStream
public ServletOutputStream getOutputStream() throws IOException
Description copied from class:javax.servlet.ServletResponseWrapperThe default behavior of this method is to return getOutputStream() on the wrapped response object.- Specified by:
getOutputStreamin interfaceServletResponse- Overrides:
getOutputStreamin classServletResponseWrapper- Returns:
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ServletOutputStreamfor writing binary data - Throws:
IOException- if an input or output exception occurred- See Also:
ServletResponse.getWriter()
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getWriter
public PrintWriter getWriter() throws IOException
Description copied from class:javax.servlet.ServletResponseWrapperThe default behavior of this method is to return getWriter() on the wrapped response object.- Specified by:
getWriterin interfaceServletResponse- Overrides:
getWriterin classServletResponseWrapper- Returns:
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PrintWriterobject that can return character data to the client - Throws:
UnsupportedEncodingException- if the character encoding returned bygetCharacterEncodingcannot be usedIOException- if an input or output exception occurred- See Also:
ServletResponse.getOutputStream(),ServletResponse.setCharacterEncoding(java.lang.String)
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isLastModifiedHeaderSet
public boolean isLastModifiedHeaderSet()
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isWriteResponseBodyStarted
public boolean isWriteResponseBodyStarted()
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reset
public void reset()
Description copied from class:javax.servlet.ServletResponseWrapperThe default behavior of this method is to call reset() on the wrapped response object.- Specified by:
resetin interfaceServletResponse- Overrides:
resetin classServletResponseWrapper- See Also:
ServletResponse.setBufferSize(int),ServletResponse.getBufferSize(),ServletResponse.flushBuffer(),ServletResponse.isCommitted()
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setDateHeader
public void setDateHeader(String name, long date)
Description copied from class:javax.servlet.http.HttpServletResponseWrapperThe default behavior of this method is to call setDateHeader(String name, long date) on the wrapped response object.- Specified by:
setDateHeaderin interfaceHttpServletResponse- Overrides:
setDateHeaderin classHttpServletResponseWrapper- Parameters:
name- the name of the header to setdate- the assigned date value- See Also:
HttpServletResponse.containsHeader(java.lang.String),HttpServletResponse.addDateHeader(java.lang.String, long)
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setHeader
public void setHeader(String name, String value)
Description copied from class:javax.servlet.http.HttpServletResponseWrapperThe default behavior of this method is to return setHeader(String name, String value) on the wrapped response object.- Specified by:
setHeaderin interfaceHttpServletResponse- Overrides:
setHeaderin classHttpServletResponseWrapper- Parameters:
name- the name of the headervalue- the header value If it contains octet string, it should be encoded according to RFC 2047 (http://www.ietf.org/rfc/rfc2047.txt)- See Also:
HttpServletResponse.containsHeader(java.lang.String),HttpServletResponse.addHeader(java.lang.String, java.lang.String)
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setWriteResponseBodyStarted
public void setWriteResponseBodyStarted(boolean writeResponseBodyStarted)
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