org.apache.tomcat.core
Class ResponseImpl

java.lang.Object
  |
  +--org.apache.tomcat.core.ResponseImpl

public class ResponseImpl

extends java.lang.Object

implements Response

Author:

James Duncan Davidson [duncan@eng.sun.com], Jason Hunter [jch@eng.sun.com], James Todd [gonzo@eng.sun.com], Harish Prabandham, Hans Bergsten

Field Summary

protected java.lang.String	characterEncoding
protected boolean	committed
protected java.lang.String	contentLanguage
protected int	contentLength
protected java.lang.String	contentType
protected org.apache.tomcat.util.MimeHeaders	headers
protected BufferedServletOutputStream	out
protected Request	request
protected HttpServletResponseFacade	responseFacade
protected java.lang.String	sessionId
protected static org.apache.tomcat.util.StringManager	sm
protected boolean	started
protected int	status
protected java.util.Vector	userCookies
protected boolean	usingStream
protected boolean	usingWriter
protected java.io.PrintWriter	writer

Constructor Summary

ResponseImpl()

Method Summary

void	addCookie(javax.servlet.http.Cookie cookie)
void	addHeader(java.lang.String name, java.lang.String value)
boolean	containsHeader(java.lang.String name)
void	doWrite(byte[] buffer, int pos, int count) Write a chunk of bytes.
void	endHeaders() Signal that we're done with the headers, and body will follow.
void	finish() Signal that we're done with a particular request, the server can go on and read more requests or close the socket
void	flushBuffer() Any implementation needs to notify ContextManger
java.lang.StringBuffer	getBody()
int	getBufferSize()
java.lang.String	getCharacterEncoding() translate locale into encoding.
int	getContentLength()
java.lang.String	getContentType()
java.util.Enumeration	getCookies()
HttpServletResponseFacade	getFacade() One-to-one with Facade.
java.util.Locale	getLocale()
static java.lang.String	getMessage(int status)
javax.servlet.ServletOutputStream	getOutputStream() Either implement ServletOutputStream or return BufferedServletOutputStream(this) and implement doWrite();
Request	getRequest()
java.lang.String	getSessionId()
int	getStatus()
java.io.PrintWriter	getWriter()
boolean	isBufferCommitted()
boolean	isIncluded() True if we are in an included servlet
boolean	isStarted() True if getOutputStream or getWriter was called.
boolean	isUsingStream() True if getOutputStream was called.
void	recycle() Response objects will be pool-able
void	reset()
void	setBufferSize(int size)
void	setContentLength(int contentLength)
void	setContentType(java.lang.String contentType) Set content type - this might also set encoding, if specified
void	setHeader(java.lang.String name, java.lang.String value)
void	setIncluded(boolean incl) The response will not set any header or the status line - it can only write to the output stream or flush.
void	setLocale(java.util.Locale locale)
void	setRequest(Request request) One-to-one relation with Request
void	setSessionId(java.lang.String id) Will set the session id.
void	setStatus(int status) Set the response status

Methods inherited from class java.lang.Object

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

Field Detail

sm

protected static org.apache.tomcat.util.StringManager sm

request

protected Request request

responseFacade

protected HttpServletResponseFacade responseFacade

userCookies

protected java.util.Vector userCookies

contentType

protected java.lang.String contentType

contentLanguage

protected java.lang.String contentLanguage

characterEncoding

protected java.lang.String characterEncoding

sessionId

protected java.lang.String sessionId

contentLength

protected int contentLength

status

protected int status

headers

protected org.apache.tomcat.util.MimeHeaders headers

out

protected BufferedServletOutputStream out

writer

protected java.io.PrintWriter writer

usingStream

protected boolean usingStream

usingWriter

protected boolean usingWriter

started

protected boolean started

committed

protected boolean committed

Constructor Detail

ResponseImpl

public ResponseImpl()

Method Detail

getFacade

public HttpServletResponseFacade getFacade()

Description copied from interface: Response

One-to-one with Facade. You can use HttpResponseFacade.

Specified by:

getFacade in interface Response

setRequest

public void setRequest(Request request)

Description copied from interface: Response

One-to-one relation with Request

Specified by:

setRequest in interface Response

getRequest

public Request getRequest()

Specified by:

getRequest in interface Response

isIncluded

public boolean isIncluded()

Description copied from interface: Response

True if we are in an included servlet

Specified by:

isIncluded in interface Response

setIncluded

public void setIncluded(boolean incl)

Description copied from interface: Response

The response will not set any header or the status line - it can only write to the output stream or flush. This is used to implement RD.include() and can be used for HTTP/0.9

Specified by:

setIncluded in interface Response

isStarted

public boolean isStarted()

Description copied from interface: Response

True if getOutputStream or getWriter was called. XXX change it to "if any output was writen" Used by RD.forward() and ServletWrapper.error()

Specified by:

isStarted in interface Response

recycle

public void recycle()

Description copied from interface: Response

Response objects will be pool-able

Specified by:

recycle in interface Response

finish

public void finish()
            throws java.io.IOException

Description copied from interface: Response

Signal that we're done with a particular request, the server can go on and read more requests or close the socket

Specified by:

finish in interface Response

containsHeader

public boolean containsHeader(java.lang.String name)

Specified by:

containsHeader in interface Response

isUsingStream

public boolean isUsingStream()

Description copied from interface: Response

True if getOutputStream was called. Used to avoid the ugly try getWriter() catch getOutputStream.

Specified by:

isUsingStream in interface Response

getWriter

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

Specified by:

getWriter in interface Response

setHeader

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

Specified by:

setHeader in interface Response

addHeader

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

Specified by:

addHeader in interface Response

getBufferSize

public int getBufferSize()

Specified by:

getBufferSize in interface Response

setBufferSize

public void setBufferSize(int size)
                   throws java.lang.IllegalStateException

Specified by:

setBufferSize in interface Response

isBufferCommitted

public boolean isBufferCommitted()

Specified by:

isBufferCommitted in interface Response

reset

public void reset()
           throws java.lang.IllegalStateException

Specified by:

reset in interface Response

flushBuffer

public void flushBuffer()
                 throws java.io.IOException

Description copied from interface: Response

Any implementation needs to notify ContextManger

Specified by:

flushBuffer in interface Response

endHeaders

public void endHeaders()
                throws java.io.IOException

Signal that we're done with the headers, and body will follow. Any implementation needs to notify ContextManager, to allow interceptors to fix headers.

Specified by:

endHeaders in interface Response

addCookie

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

Specified by:

addCookie in interface Response

getCookies

public java.util.Enumeration getCookies()

Specified by:

getCookies in interface Response

setSessionId

public void setSessionId(java.lang.String id)

Description copied from interface: Response

Will set the session id. The session interceptor might process it and add a Cookie header, and it can be used to rewrite URLs. This replace "system cookies" ( it was the only use for them )

Specified by:

setSessionId in interface Response

getSessionId

public java.lang.String getSessionId()

Specified by:

getSessionId in interface Response

getLocale

public java.util.Locale getLocale()

Specified by:

getLocale in interface Response

setLocale

public void setLocale(java.util.Locale locale)

Specified by:

setLocale in interface Response

getCharacterEncoding

public java.lang.String getCharacterEncoding()

Description copied from interface: Response

translate locale into encoding.

Specified by:

getCharacterEncoding in interface Response

setContentType

public void setContentType(java.lang.String contentType)

Description copied from interface: Response

Set content type - this might also set encoding, if specified

Specified by:

setContentType in interface Response

getContentType

public java.lang.String getContentType()

Specified by:

getContentType in interface Response

setContentLength

public void setContentLength(int contentLength)

Specified by:

setContentLength in interface Response

getContentLength

public int getContentLength()

Specified by:

getContentLength in interface Response

getStatus

public int getStatus()

Specified by:

getStatus in interface Response

setStatus

public void setStatus(int status)

Set the response status

Specified by:

setStatus in interface Response

getOutputStream

public javax.servlet.ServletOutputStream getOutputStream()

Either implement ServletOutputStream or return BufferedServletOutputStream(this) and implement doWrite();

Specified by:

getOutputStream in interface Response

doWrite

public void doWrite(byte[] buffer,
                    int pos,
                    int count)
             throws java.io.IOException

Write a chunk of bytes. Should be called only from ServletOutputStream implementations, No need to implement it if your adapter implements ServletOutputStream. Headers and status will be written before this method is exceuted.

getBody

public java.lang.StringBuffer getBody()

getMessage

public static java.lang.String getMessage(int status)