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## org.apache.catalina.connector
Class Response

    java.lang.Object
      org.apache.catalina.connector.Response

All Implemented Interfaces:
  javax.servlet.http.HttpServletResponse, javax.servlet.ServletResponse

    public class Response

extends java.lang.Object
implements javax.servlet.http.HttpServletResponse

Wrapper object for the Coyote response.

Author:
  Remy Maucherat, Craig R. McClanahan

Field Summary
`protected boolean` | `appCommitted` The application commit flag.
`protected Connector` | `connector` Associated Catalina connector.
`protected java.util.ArrayList<javax.servlet.http.Cookie>` | `cookies` The set of Cookies associated with this Response.
`protected Response` | `coyoteResponse` Coyote response.
`protected boolean` | `error` The error flag.
`protected ResponseFacade` | `facade` The facade associated with this response.
`protected java.text.SimpleDateFormat` | `format` The date format we will use for creating date headers.
`protected boolean` | `included` The included flag.
`protected static java.lang.String` | `info` Descriptive information about this Response implementation.
`protected OutputBuffer` | `outputBuffer` The associated output buffer.
`protected CoyoteOutputStream` | `outputStream` The associated output stream.
`protected CharChunk` | `redirectURLCC` Recyclable buffer to hold the redirect URL.
`protected Request` | `request` The request with which this response is associated.
`protected static StringManager` | `sm` The string manager for this package.
`protected UEncoder` | `urlEncoder` URL encoder.
`protected boolean` | `usingOutputStream` Using output stream flag.
`protected boolean` | `usingWriter` Using writer flag.
`protected CoyoteWriter` | `writer` The associated writer.

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
`Response()`

Method Summary
`void` | `addCookie(javax.servlet.http.Cookie cookie)` Add the specified Cookie to those that will be included with this Response.
`void` | `addCookieInternal(javax.servlet.http.Cookie cookie)` Add the specified Cookie to those that will be included with this Response.
`void` | `addCookieInternal(javax.servlet.http.Cookie cookie, boolean httpOnly)` Add the specified Cookie to those that will be included with this Response.
`void` | `addDateHeader(java.lang.String name, long value)` Add the specified date header to the specified value.
`void` | `addHeader(java.lang.String name, java.lang.String value)` Add the specified header to the specified value.
`void` | `addIntHeader(java.lang.String name, int value)` Add the specified integer header to the specified value.
`void` | `addSessionCookieInternal(javax.servlet.http.Cookie cookie, boolean httpOnly)` Special method for adding a session cookie as we should be overriding any previous
`void` | `clearEncoders()` Clear cached encoders (to save memory for Comet requests).
`boolean` | `containsHeader(java.lang.String name)` Has the specified header been set already in this response?
`javax.servlet.ServletOutputStream` | `createOutputStream()` Create and return a ServletOutputStream to write the content associated with this Response.
`java.lang.String` | `encodeRedirectUrl(java.lang.String url)` Deprecated. As of Version 2.1 of the Java Servlet API, use `encodeRedirectURL()` instead.
`java.lang.String` | `encodeRedirectURL(java.lang.String url)` Encode the session identifier associated with this response into the specified redirect URL, if necessary.
`java.lang.String` | `encodeUrl(java.lang.String url)` Deprecated. As of Version 2.1 of the Java Servlet API, use `encodeURL()` instead.
`java.lang.String` | `encodeURL(java.lang.String url)` Encode the session identifier associated with this response into the specified URL, if necessary.
`void` | `finishResponse()` Perform whatever actions are required to flush and close the output stream or writer, in a single operation.
`void` | `flushBuffer()` Flush the buffer and commit this response.
`java.lang.StringBuffer` | `generateCookieString(javax.servlet.http.Cookie cookie, boolean httpOnly)`
`int` | `getBufferSize()` Return the actual buffer size used for this Response.
`java.lang.String` | `getCharacterEncoding()` Return the character encoding used for this Response.
`Connector` | `getConnector()` Return the Connector through which this Request was received.
`int` | `getContentCount()` Return the number of bytes actually written to the output stream.
`long` | `getContentCountLong()` Return the number of bytes actually written to the output stream.
`int` | `getContentLength()` Return the content length that was set or calculated for this Response.
`java.lang.String` | `getContentType()` Return the content type that was set or calculated for this response, or `null` if no content type was set.
`Context` | `getContext()` Return the Context within which this Request is being processed.
`javax.servlet.http.Cookie[]` | `getCookies()` Return an array of all cookies set for this response, or a zero-length array if no cookies have been set.
`Response` | `getCoyoteResponse()` Get the Coyote response.
`java.lang.String` | `getHeader(java.lang.String name)` Return the value for the specified header, or `null` if this header has not been set.
`java.lang.String[]` | `getHeaderNames()` Return an array of all the header names set for this response, or a zero-length array if no headers have been set.
`java.lang.String[]` | `getHeaderValues(java.lang.String name)` Return an array of all the header values associated with the specified header name, or an zero-length array if there are no such header values.
`boolean` | `getIncluded()` Return the "processing inside an include" flag.
`java.lang.String` | `getInfo()` Return descriptive information about this Response implementation and the corresponding version number, in the format `<description>/<version>`.
`java.util.Locale` | `getLocale()` Return the Locale assigned to this response.
`java.lang.String` | `getMessage()` Return the error message that was set with `sendError()` for this Response.
`javax.servlet.ServletOutputStream` | `getOutputStream()` Return the servlet output stream associated with this Response.
`java.io.PrintWriter` | `getReporter()` Return a PrintWriter that can be used to render error messages, regardless of whether a stream or writer has already been acquired.
`Request` | `getRequest()` Return the Request with which this Response is associated.
`javax.servlet.http.HttpServletResponse` | `getResponse()` Return the `ServletResponse` for which this object is the facade.
`int` | `getStatus()` Return the HTTP status code associated with this Response.
`java.io.OutputStream` | `getStream()` Return the output stream associated with this Response.
`java.io.PrintWriter` | `getWriter()` Return the writer associated with this Response.
`boolean` | `isAppCommitted()` Application commit flag accessor.
`boolean` | `isClosed()` Closed flag accessor.
`boolean` | `isCommitted()` Has the output of this response already been committed?
`protected boolean` | `isEncodeable(java.lang.String location)` Return `true` if the specified URL should be encoded with a session identifier.
`boolean` | `isError()` Error flag accessor.
`boolean` | `isSuspended()` Suspended flag accessor.
`void` | `recycle()` Release all object references, and initialize instance variables, in preparation for reuse of this object.
`void` | `reset()` Clear any content written to the buffer.
`void` | `reset(int status, java.lang.String message)` Reset this response, and specify the values for the HTTP status code and corresponding message.
`void` | `resetBuffer()` Reset the data buffer but not any status or header information.
`void` | `resetBuffer(boolean resetWriterStreamFlags)` Reset the data buffer and the using Writer/Stream flags but not any status or header information.
`void` | `sendAcknowledgement()` Send an acknowledgment of a request.
`void` | `sendError(int status)` Send an error response with the specified status and a default message.
`void` | `sendError(int status, java.lang.String message)` Send an error response with the specified status and message.
`void` | `sendRedirect(java.lang.String location)` Send a temporary redirect to the specified redirect location URL.
`void` | `setAppCommitted(boolean appCommitted)` Set the application commit flag.
`void` | `setBufferSize(int size)` Set the buffer size to be used for this Response.
`void` | `setCharacterEncoding(java.lang.String charset)` Sets the character encoding (MIME charset) of the response being sent to the client, for example, to UTF-8.
`void` | `setConnector(Connector connector)` Set the Connector through which this Request was received.
`void` | `setContentLength(int length)` Set the content length (in bytes) for this Response.
`void` | `setContentType(java.lang.String type)` Set the content type for this Response.
`void` | `setContext(Context context)` Set the Context within which this Request is being processed.
`void` | `setCoyoteResponse(Response coyoteResponse)` Set the Coyote response.
`void` | `setDateHeader(java.lang.String name, long value)` Set the specified date header to the specified value.
`void` | `setError()` Set the error flag.
`void` | `setHeader(java.lang.String name, java.lang.String value)` Set the specified header to the specified value.
`void` | `setIncluded(boolean included)` Set the "processing inside an include" flag.
`void` | `setIntHeader(java.lang.String name, int value)` Set the specified integer header to the specified value.
`void` | `setLocale(java.util.Locale locale)` Set the Locale that is appropriate for this response, including setting the appropriate character encoding.
`void` | `setRequest(Request request)` Set the Request with which this Response is associated.
`void` | `setStatus(int status)` Set the HTTP status to be returned with this response.
`void` | `setStatus(int status, java.lang.String message)` Deprecated. As of Version 2.1 of the Java Servlet API, this method has been deprecated due to the ambiguous meaning of the message parameter.
`void` | `setStream(java.io.OutputStream stream)` Set the output stream associated with this Response.
`void` | `setSuspended(boolean suspended)` Set the suspended flag.
`protected java.lang.String` | `toEncoded(java.lang.String url, java.lang.String sessionId)` Return the specified URL with the specified session identifier suitably encoded.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### info

    protected static final java.lang.String info

  Descriptive information about this Response implementation.

  See Also:
    Constant Field Values

### sm

    protected static StringManager sm

  The string manager for this package.

### format

    protected java.text.SimpleDateFormat format

  The date format we will use for creating date headers.

### connector

    protected Connector connector

  Associated Catalina connector.

### coyoteResponse

    protected Response coyoteResponse

  Coyote response.

### outputBuffer

    protected OutputBuffer outputBuffer

  The associated output buffer.

### outputStream

    protected CoyoteOutputStream outputStream

  The associated output stream.

### writer

    protected CoyoteWriter writer

  The associated writer.

### appCommitted

    protected boolean appCommitted

  The application commit flag.

### included

    protected boolean included

  The included flag.

### error

    protected boolean error

  The error flag.

### cookies

    protected java.util.ArrayList<javax.servlet.http.Cookie> cookies

  The set of Cookies associated with this Response.

### usingOutputStream

    protected boolean usingOutputStream

  Using output stream flag.

### usingWriter

    protected boolean usingWriter

  Using writer flag.

### urlEncoder

    protected UEncoder urlEncoder

  URL encoder.

### redirectURLCC

    protected CharChunk redirectURLCC

  Recyclable buffer to hold the redirect URL.

### request

    protected Request request

  The request with which this response is associated.

### facade

    protected ResponseFacade facade

  The facade associated with this response.

Constructor Detail

### Response

    public Response()

Method Detail

### getConnector

    public Connector getConnector()

  Return the Connector through which this Request was received.

### setConnector

    public void setConnector(Connector connector)

  Set the Connector through which this Request was received.

  Parameters:
    `connector` - The new connector

### setCoyoteResponse

    public void setCoyoteResponse(Response coyoteResponse)

  Set the Coyote response.

  Parameters:
    `coyoteResponse` - The Coyote response

### getCoyoteResponse

    public Response getCoyoteResponse()

  Get the Coyote response.

### getContext

    public Context getContext()

  Return the Context within which this Request is being processed.

### setContext

    public void setContext(Context context)

  Set the Context within which this Request is being processed. This must be called as soon as the appropriate Context is identified, because it identifies the value to be returned by `getContextPath()`, and thus enables parsing of the request URI.

  Parameters:
    `context` - The newly associated Context

### recycle

    public void recycle()

  Release all object references, and initialize instance variables, in preparation for reuse of this object.

### clearEncoders

    public void clearEncoders()

  Clear cached encoders (to save memory for Comet requests).

### getContentCount

    public int getContentCount()

  Return the number of bytes actually written to the output stream.

### getContentCountLong

    public long getContentCountLong()

  Return the number of bytes actually written to the output stream.

### setAppCommitted

    public void setAppCommitted(boolean appCommitted)

  Set the application commit flag.

  Parameters:
    `appCommitted` - The new application committed flag value

### isAppCommitted

    public boolean isAppCommitted()

  Application commit flag accessor.

### getIncluded

    public boolean getIncluded()

  Return the "processing inside an include" flag.

### setIncluded

    public void setIncluded(boolean included)

  Set the "processing inside an include" flag.

  Parameters:
    `included` - `true` if we are currently inside a RequestDispatcher.include(), else `false`

### getInfo

    public java.lang.String getInfo()

  Return descriptive information about this Response implementation and the corresponding version number, in the format `<description>/<version>`.

### getRequest

    public Request getRequest()

  Return the Request with which this Response is associated.

### setRequest

    public void setRequest(Request request)

  Set the Request with which this Response is associated.

  Parameters:
    `request` - The new associated request

### getResponse

    public javax.servlet.http.HttpServletResponse getResponse()

  Return the `ServletResponse` for which this object is the facade.

### getStream

    public java.io.OutputStream getStream()

  Return the output stream associated with this Response.

### setStream

    public void setStream(java.io.OutputStream stream)

  Set the output stream associated with this Response.

  Parameters:
    `stream` - The new output stream

### setSuspended

    public void setSuspended(boolean suspended)

  Set the suspended flag.

  Parameters:
    `suspended` - The new suspended flag value

### isSuspended

    public boolean isSuspended()

  Suspended flag accessor.

### isClosed

    public boolean isClosed()

  Closed flag accessor.

### setError

    public void setError()

  Set the error flag.

### isError

    public boolean isError()

  Error flag accessor.

### createOutputStream

    public javax.servlet.ServletOutputStream createOutputStream()
                                                         throws java.io.IOException

  Create and return a ServletOutputStream to write the content associated with this Response.

  Throws:
    `java.io.IOException` - if an input/output error occurs

### finishResponse

    public void finishResponse()
                        throws java.io.IOException

  Perform whatever actions are required to flush and close the output stream or writer, in a single operation.

  Throws:
    `java.io.IOException` - if an input/output error occurs

### getContentLength

    public int getContentLength()

  Return the content length that was set or calculated for this Response.

### getContentType

    public java.lang.String getContentType()

  Return the content type that was set or calculated for this response, or `null` if no content type was set.

  Specified by:
    `getContentType` in interface `javax.servlet.ServletResponse`
  Returns:
    a `String` specifying the content type, for example, `text/html; charset=UTF-8`, or null

### getReporter

    public java.io.PrintWriter getReporter()
                                    throws java.io.IOException

  Return a PrintWriter that can be used to render error messages, regardless of whether a stream or writer has already been acquired.

  Returns:
    Writer which can be used for error reports. If the response is not an error report returned using sendError or triggered by an unexpected exception thrown during the servlet processing (and only in that case), null will be returned if the response stream has already been used.
  Throws:
    `java.io.IOException` - if an input/output error occurs

### flushBuffer

    public void flushBuffer()
                     throws java.io.IOException

  Flush the buffer and commit this response.

  Specified by:
    `flushBuffer` in interface `javax.servlet.ServletResponse`
  Throws:
    `java.io.IOException` - if an input/output error occurs
  See Also:
    `ServletResponse.setBufferSize(int)`, `ServletResponse.getBufferSize()`, `ServletResponse.isCommitted()`, `ServletResponse.reset()`

### getBufferSize

    public int getBufferSize()

  Return the actual buffer size used for this Response.

  Specified by:
    `getBufferSize` in interface `javax.servlet.ServletResponse`
  Returns:
    the actual buffer size used
  See Also:
    `ServletResponse.setBufferSize(int)`, `ServletResponse.flushBuffer()`, `ServletResponse.isCommitted()`, `ServletResponse.reset()`

### getCharacterEncoding

    public java.lang.String getCharacterEncoding()

  Return the character encoding used for this Response.

  Specified by:
    `getCharacterEncoding` in interface `javax.servlet.ServletResponse`
  Returns:
    a `String` specifying the name of the character encoding, for example, `UTF-8`

### getOutputStream

    public javax.servlet.ServletOutputStream getOutputStream()
                                                      throws java.io.IOException

  Return the servlet output stream associated with this Response.

  Specified by:
    `getOutputStream` in interface `javax.servlet.ServletResponse`
  Returns:
    a `ServletOutputStream` for writing binary data
  Throws:
    `java.lang.IllegalStateException` - if `getWriter` has already been called for this response
    `java.io.IOException` - if an input/output error occurs
  See Also:
    `ServletResponse.getWriter()`

### getLocale

    public java.util.Locale getLocale()

  Return the Locale assigned to this response.

  Specified by:
    `getLocale` in interface `javax.servlet.ServletResponse`
  See Also:
    `ServletResponse.setLocale(java.util.Locale)`

### getWriter

    public java.io.PrintWriter getWriter()
                                  throws java.io.IOException

  Return the writer associated with this Response.

  Specified by:
    `getWriter` in interface `javax.servlet.ServletResponse`
  Returns:
    a `PrintWriter` object that can return character data to the client
  Throws:
    `java.lang.IllegalStateException` - if `getOutputStream` has already been called for this response
    `java.io.IOException` - if an input/output error occurs
  See Also:
    `ServletResponse.getOutputStream()`, `ServletResponse.setCharacterEncoding(java.lang.String)`

### isCommitted

    public boolean isCommitted()

  Has the output of this response already been committed?

  Specified by:
    `isCommitted` in interface `javax.servlet.ServletResponse`
  Returns:
    a boolean indicating if the response has been committed
  See Also:
    `ServletResponse.setBufferSize(int)`, `ServletResponse.getBufferSize()`, `ServletResponse.flushBuffer()`, `ServletResponse.reset()`

### reset

    public void reset()

  Clear any content written to the buffer.

  Specified by:
    `reset` in interface `javax.servlet.ServletResponse`
  Throws:
    `java.lang.IllegalStateException` - if this response has already been committed
  See Also:
    `ServletResponse.setBufferSize(int)`, `ServletResponse.getBufferSize()`, `ServletResponse.flushBuffer()`, `ServletResponse.isCommitted()`

### resetBuffer

    public void resetBuffer()

  Reset the data buffer but not any status or header information.

  Specified by:
    `resetBuffer` in interface `javax.servlet.ServletResponse`
  Throws:
    `java.lang.IllegalStateException` - if the response has already been committed
  See Also:
    `ServletResponse.setBufferSize(int)`, `ServletResponse.getBufferSize()`, `ServletResponse.isCommitted()`, `ServletResponse.reset()`

### resetBuffer

    public void resetBuffer(boolean resetWriterStreamFlags)

  Reset the data buffer and the using Writer/Stream flags but not any status or header information.

  Parameters:
    `resetWriterStreamFlags` - `true` if the internal `usingWriter`, `usingOutputStream`, `isCharacterEncodingSet` flags should also be reset
  Throws:
    `java.lang.IllegalStateException` - if the response has already been committed

### setBufferSize

    public void setBufferSize(int size)

  Set the buffer size to be used for this Response.

  Specified by:
    `setBufferSize` in interface `javax.servlet.ServletResponse`
  Parameters:
    `size` - The new buffer size
  Throws:
    `java.lang.IllegalStateException` - if this method is called after output has been committed for this response
  See Also:
    `ServletResponse.getBufferSize()`, `ServletResponse.flushBuffer()`, `ServletResponse.isCommitted()`, `ServletResponse.reset()`

### setContentLength

    public void setContentLength(int length)

  Set the content length (in bytes) for this Response.

  Specified by:
    `setContentLength` in interface `javax.servlet.ServletResponse`
  Parameters:
    `length` - The new content length

### setContentType

    public void setContentType(java.lang.String type)

  Set the content type for this Response.

  Specified by:
    `setContentType` in interface `javax.servlet.ServletResponse`
  Parameters:
    `type` - The new content type
  See Also:
    `ServletResponse.setLocale(java.util.Locale)`, `ServletResponse.setCharacterEncoding(java.lang.String)`, `ServletResponse.getOutputStream()`, `ServletResponse.getWriter()`

### setCharacterEncoding

    public void setCharacterEncoding(java.lang.String charset)

  Description copied from interface: `javax.servlet.ServletResponse`
  Sets the character encoding (MIME charset) of the response being sent to the client, for example, to UTF-8. If the character encoding has already been set by `ServletResponse.setContentType(java.lang.String)` or `ServletResponse.setLocale(java.util.Locale)`, this method overrides it. Calling `ServletResponse.setContentType(java.lang.String)` with the `String` of `text/html` and calling this method with the `String` of `UTF-8` is equivalent with calling `setContentType` with the `String` of `text/html; charset=UTF-8`.

  This method can be called repeatedly to change the character encoding. This method has no effect if it is called after `getWriter` has been called or after the response has been committed.

  Containers must communicate the character encoding used for the servlet response's writer to the client if the protocol provides a way for doing so. In the case of HTTP, the character encoding is communicated as part of the `Content-Type` header for text media types. Note that the character encoding cannot be communicated via HTTP headers if the servlet does not specify a content type; however, it is still used to encode text written via the servlet response's writer.

  Specified by:
    `setCharacterEncoding` in interface `javax.servlet.ServletResponse`
  Parameters:
    `charset` - a String specifying only the character set defined by IANA Character Sets (http://www.iana.org/assignments/character-sets)
  See Also:
    `#setLocale`

### setLocale

    public void setLocale(java.util.Locale locale)

  Set the Locale that is appropriate for this response, including setting the appropriate character encoding.

  Specified by:
    `setLocale` in interface `javax.servlet.ServletResponse`
  Parameters:
    `locale` - The new locale
  See Also:
    `ServletResponse.getLocale()`, `ServletResponse.setContentType(java.lang.String)`, `ServletResponse.setCharacterEncoding(java.lang.String)`

### getCookies

    public javax.servlet.http.Cookie[] getCookies()

  Return an array of all cookies set for this response, or a zero-length array if no cookies have been set.

### getHeader

    public java.lang.String getHeader(java.lang.String name)

  Return the value for the specified header, or `null` if this header has not been set. If more than one value was added for this name, only the first is returned; use getHeaderValues() to retrieve all of them.

  Parameters:
    `name` - Header name to look up

### getHeaderNames

    public java.lang.String[] getHeaderNames()

  Return an array of all the header names set for this response, or a zero-length array if no headers have been set.

### getHeaderValues

    public java.lang.String[] getHeaderValues(java.lang.String name)

  Return an array of all the header values associated with the specified header name, or an zero-length array if there are no such header values.

  Parameters:
    `name` - Header name to look up

### getMessage

    public java.lang.String getMessage()

  Return the error message that was set with `sendError()` for this Response.

### getStatus

    public int getStatus()

  Return the HTTP status code associated with this Response.

### reset

    public void reset(int status,
                      java.lang.String message)

  Reset this response, and specify the values for the HTTP status code and corresponding message.

  Throws:
    `java.lang.IllegalStateException` - if this response has already been committed

### addCookie

    public void addCookie(javax.servlet.http.Cookie cookie)

  Add the specified Cookie to those that will be included with this Response.

  Specified by:
    `addCookie` in interface `javax.servlet.http.HttpServletResponse`
  Parameters:
    `cookie` - Cookie to be added

### addSessionCookieInternal

    public void addSessionCookieInternal(javax.servlet.http.Cookie cookie,
                                         boolean httpOnly)

  Special method for adding a session cookie as we should be overriding any previous

  Parameters:
    `cookie` -

### addCookieInternal

    public void addCookieInternal(javax.servlet.http.Cookie cookie)

  Add the specified Cookie to those that will be included with this Response.

  Parameters:
    `cookie` - Cookie to be added

### addCookieInternal

    public void addCookieInternal(javax.servlet.http.Cookie cookie,
                                  boolean httpOnly)

  Add the specified Cookie to those that will be included with this Response.

  Parameters:
    `cookie` - Cookie to be added
    `httpOnly` - Should the httpOnly falg be set on this cookie

### generateCookieString

    public java.lang.StringBuffer generateCookieString(javax.servlet.http.Cookie cookie,
                                                       boolean httpOnly)

### addDateHeader

    public void addDateHeader(java.lang.String name,
                              long value)

  Add the specified date header to the specified value.

  Specified by:
    `addDateHeader` in interface `javax.servlet.http.HttpServletResponse`
  Parameters:
    `name` - Name of the header to set
    `value` - Date value to be set
  See Also:
    `HttpServletResponse.setDateHeader(java.lang.String, long)`

### addHeader

    public void addHeader(java.lang.String name,
                          java.lang.String value)

  Add the specified header to the specified value.

  Specified by:
    `addHeader` in interface `javax.servlet.http.HttpServletResponse`
  Parameters:
    `name` - Name of the header to set
    `value` - Value to be set
  See Also:
    `HttpServletResponse.setHeader(java.lang.String, java.lang.String)`

### addIntHeader

    public void addIntHeader(java.lang.String name,
                             int value)

  Add the specified integer header to the specified value.

  Specified by:
    `addIntHeader` in interface `javax.servlet.http.HttpServletResponse`
  Parameters:
    `name` - Name of the header to set
    `value` - Integer value to be set
  See Also:
    `HttpServletResponse.setIntHeader(java.lang.String, int)`

### containsHeader

    public boolean containsHeader(java.lang.String name)

  Has the specified header been set already in this response?

  Specified by:
    `containsHeader` in interface `javax.servlet.http.HttpServletResponse`
  Parameters:
    `name` - Name of the header to check
  Returns:
    `true` if the named response header has already been set; `false` otherwise

### encodeRedirectURL

    public java.lang.String encodeRedirectURL(java.lang.String url)

  Encode the session identifier associated with this response into the specified redirect URL, if necessary.

  Specified by:
    `encodeRedirectURL` in interface `javax.servlet.http.HttpServletResponse`
  Parameters:
    `url` - URL to be encoded
  Returns:
    the encoded URL if encoding is needed; the unchanged URL otherwise.
  See Also:
    `HttpServletResponse.sendRedirect(java.lang.String)`, `HttpServletResponse.encodeUrl(java.lang.String)`

### encodeRedirectUrl

    public java.lang.String encodeRedirectUrl(java.lang.String url)

  Deprecated. As of Version 2.1 of the Java Servlet API, use `encodeRedirectURL()` instead.

  Encode the session identifier associated with this response into the specified redirect URL, if necessary.

  Specified by:
    `encodeRedirectUrl` in interface `javax.servlet.http.HttpServletResponse`
  Parameters:
    `url` - URL to be encoded
  Returns:
    the encoded URL if encoding is needed; the unchanged URL otherwise.

### encodeURL

    public java.lang.String encodeURL(java.lang.String url)

  Encode the session identifier associated with this response into the specified URL, if necessary.

  Specified by:
    `encodeURL` in interface `javax.servlet.http.HttpServletResponse`
  Parameters:
    `url` - URL to be encoded
  Returns:
    the encoded URL if encoding is needed; the unchanged URL otherwise.

### encodeUrl

    public java.lang.String encodeUrl(java.lang.String url)

  Deprecated. As of Version 2.1 of the Java Servlet API, use `encodeURL()` instead.

  Encode the session identifier associated with this response into the specified URL, if necessary.

  Specified by:
    `encodeUrl` in interface `javax.servlet.http.HttpServletResponse`
  Parameters:
    `url` - URL to be encoded
  Returns:
    the encoded URL if encoding is needed; the unchanged URL otherwise.

### sendAcknowledgement

    public void sendAcknowledgement()
                             throws java.io.IOException

  Send an acknowledgment of a request.

  Throws:
    `java.io.IOException` - if an input/output error occurs

### sendError

    public void sendError(int status)
                   throws java.io.IOException

  Send an error response with the specified status and a default message.

  Specified by:
    `sendError` in interface `javax.servlet.http.HttpServletResponse`
  Parameters:
    `status` - HTTP status code to send
  Throws:
    `java.lang.IllegalStateException` - if this response has already been committed
    `java.io.IOException` - if an input/output error occurs

### sendError

    public void sendError(int status,
                          java.lang.String message)
                   throws java.io.IOException

  Send an error response with the specified status and message.

  Specified by:
    `sendError` in interface `javax.servlet.http.HttpServletResponse`
  Parameters:
    `status` - HTTP status code to send
    `message` - Corresponding message to send
  Throws:
    `java.lang.IllegalStateException` - if this response has already been committed
    `java.io.IOException` - if an input/output error occurs

### sendRedirect

    public void sendRedirect(java.lang.String location)
                      throws java.io.IOException

  Send a temporary redirect to the specified redirect location URL.

  Specified by:
    `sendRedirect` in interface `javax.servlet.http.HttpServletResponse`
  Parameters:
    `location` - Location URL to redirect to
  Throws:
    `java.lang.IllegalStateException` - if this response has already been committed
    `java.io.IOException` - if an input/output error occurs

### setDateHeader

    public void setDateHeader(java.lang.String name,
                              long value)

  Set the specified date header to the specified value.

  Specified by:
    `setDateHeader` in interface `javax.servlet.http.HttpServletResponse`
  Parameters:
    `name` - Name of the header to set
    `value` - Date value to be set
  See Also:
    `HttpServletResponse.containsHeader(java.lang.String)`, `HttpServletResponse.addDateHeader(java.lang.String, long)`

### setHeader

    public void setHeader(java.lang.String name,
                          java.lang.String value)

  Set the specified header to the specified value.

  Specified by:
    `setHeader` in interface `javax.servlet.http.HttpServletResponse`
  Parameters:
    `name` - Name of the header to set
    `value` - Value to be set
  See Also:
    `HttpServletResponse.containsHeader(java.lang.String)`, `HttpServletResponse.addHeader(java.lang.String, java.lang.String)`

### setIntHeader

    public void setIntHeader(java.lang.String name,
                             int value)

  Set the specified integer header to the specified value.

  Specified by:
    `setIntHeader` in interface `javax.servlet.http.HttpServletResponse`
  Parameters:
    `name` - Name of the header to set
    `value` - Integer value to be set
  See Also:
    `HttpServletResponse.containsHeader(java.lang.String)`, `HttpServletResponse.addIntHeader(java.lang.String, int)`

### setStatus

    public void setStatus(int status)

  Set the HTTP status to be returned with this response.

  Specified by:
    `setStatus` in interface `javax.servlet.http.HttpServletResponse`
  Parameters:
    `status` - The new HTTP status
  See Also:
    `HttpServletResponse.sendError(int, java.lang.String)`

### setStatus

    public void setStatus(int status,
                          java.lang.String message)

  Deprecated. As of Version 2.1 of the Java Servlet API, this method has been deprecated due to the ambiguous meaning of the message parameter.

  Set the HTTP status and message to be returned with this response.

  Specified by:
    `setStatus` in interface `javax.servlet.http.HttpServletResponse`
  Parameters:
    `status` - The new HTTP status
    `message` - The associated text message

### isEncodeable

    protected boolean isEncodeable(java.lang.String location)

  Return `true` if the specified URL should be encoded with a session identifier. This will be true if all of the following conditions are met:
  - The request we are responding to asked for a valid session
  - The requested session ID was not received via a cookie
  - The specified URL points back to somewhere within the web application that is responding to this request
  - If URL rewriting hasn't been disabled for this context

  Parameters:
    `location` - Absolute URL to be validated

### toEncoded

    protected java.lang.String toEncoded(java.lang.String url,
                                         java.lang.String sessionId)

  Return the specified URL with the specified session identifier suitably encoded.

  Parameters:
    `url` - URL to be encoded with the session id
    `sessionId` - Session id to be included in the encoded URL

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