org.openejb.webadmin.httpd
Class HttpResponseImpl

java.lang.Object
  org.openejb.webadmin.httpd.HttpResponseImpl

All Implemented Interfaces:

java.io.Serializable, HttpResponse

public class HttpResponseImpl
extends java.lang.Object
implements HttpResponse

This class takes care of HTTP Responses. It sends data back to the browser.

Author:

David Blevins, Tim Urberg

See Also:

Serialized Form

Field Summary

static java.lang.String	CRLF a line feed character
static java.lang.String	CSP a colon and space
static java.lang.String	HTTP_VERSION the HTTP version
static java.lang.String	server the server to send data from
static java.lang.String	SP a space character

Constructor Summary

protected	HttpResponseImpl() creates a new instance of HttpResponseImpl with default values
protected	HttpResponseImpl(int code, java.lang.String responseString, java.lang.String contentType) Creates a new HttpResponseImpl with user provided parameters

Method Summary

protected static HttpResponseImpl	createError(java.lang.String message) This could be improved at some day in the future to also include a stack trace of the exceptions
protected static HttpResponseImpl	createError(java.lang.String message, java.lang.Throwable t) creates an error with user defined variables
protected static HttpResponseImpl	createForbidden(java.lang.String ip) Creates a forbidden response to be sent to the browser using IP authentication
int	getCode() gets the HTTP response code
java.lang.String	getContentType() gets the content type that will be sent to the browser
java.lang.String	getHeader(java.lang.String name) Gets a header based on the name passed in
java.io.OutputStream	getOutputStream() gets the OutputStream to send data to the browser
java.io.PrintWriter	getPrintWriter() Gets the PrintWriter to send data to the browser
java.lang.String	getResponseString() Sets the response string to be sent to the browser
java.lang.String	getServerName() gets the name of the server being used
void	reset() resets the data to be sent to the browser
void	reset(int code, java.lang.String responseString) resets the data to be sent to the browser with the response code and response string
void	setCode(int code) sets the HTTP response code to be sent to the browser.
void	setContent(java.net.URLConnection content)
void	setContentType(java.lang.String type) sets the content type to be sent back to the browser
void	setHeader(java.lang.String name, java.lang.String value) sets a header to be sent back to the browser
protected void	setRequest(HttpRequestImpl request)
void	setResponseString(java.lang.String responseString) Sets the response string to be sent to the browser
java.lang.String	toString() Creates a string version of the response similar to: HTTP/1.1 200 OK
protected void	writeMessage(java.io.OutputStream output) Takes care of sending the response line, headers and body HTTP/1.1 200 OK Server: Netscape-Enterprise/3.6 SP3 Date: Thu, 07 Jun 2001 17:30:42 GMT Content-Type: text/html Connection: close

Methods inherited from class java.lang.Object

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

Field Detail

HTTP_VERSION

public static final java.lang.String HTTP_VERSION

the HTTP version

See Also:

Constant Field Values

CRLF

public static final java.lang.String CRLF

a line feed character

See Also:

Constant Field Values

SP

public static final java.lang.String SP

a space character

See Also:

Constant Field Values

CSP

public static final java.lang.String CSP

a colon and space

See Also:

Constant Field Values

server

public static java.lang.String server

the server to send data from

Constructor Detail

HttpResponseImpl

protected HttpResponseImpl()

creates a new instance of HttpResponseImpl with default values

HttpResponseImpl

protected HttpResponseImpl(int code,
                           java.lang.String responseString,
                           java.lang.String contentType)

Creates a new HttpResponseImpl with user provided parameters

Parameters:

code - the HTTP Response code, see http://www.ietf.org/rfc/rfc2616.txt for these codes

responseString - the response string to be sent back

contentType - the content type to be sent back

Method Detail

setRequest

protected void setRequest(HttpRequestImpl request)

setHeader

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

sets a header to be sent back to the browser

Specified by:

setHeader in interface HttpResponse

Parameters:

name - the name of the header

value - the value of the header

getHeader

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

Gets a header based on the name passed in

Specified by:

getHeader in interface HttpResponse

Parameters:

name - The name of the header

Returns:

the value of the header

getPrintWriter

public java.io.PrintWriter getPrintWriter()

Gets the PrintWriter to send data to the browser

Specified by:

getPrintWriter in interface HttpResponse

Returns:

the PrintWriter to send data to the browser

getOutputStream

public java.io.OutputStream getOutputStream()

gets the OutputStream to send data to the browser

Specified by:

getOutputStream in interface HttpResponse

Returns:

the OutputStream to send data to the browser

setCode

public void setCode(int code)

sets the HTTP response code to be sent to the browser. These codes are: OPTIONS = 0 GET = 1 HEAD = 2 POST = 3 PUT = 4 DELETE = 5 TRACE = 6 CONNECT = 7 UNSUPPORTED = 8

Specified by:

setCode in interface HttpResponse

Parameters:

code - the code to be sent to the browser

getCode

public int getCode()

gets the HTTP response code

Specified by:

getCode in interface HttpResponse

Returns:

the HTTP response code

setContentType

public void setContentType(java.lang.String type)

sets the content type to be sent back to the browser

Specified by:

setContentType in interface HttpResponse

Parameters:

type - the type to be sent to the browser (i.e. "text/html")

getContentType

public java.lang.String getContentType()

gets the content type that will be sent to the browser

Specified by:

getContentType in interface HttpResponse

Returns:

the content type (i.e. "text/html")

setResponseString

public void setResponseString(java.lang.String responseString)

Sets the response string to be sent to the browser

Specified by:

setResponseString in interface HttpResponse

Parameters:

responseString - the response string

getResponseString

public java.lang.String getResponseString()

Sets the response string to be sent to the browser

Returns:

the response string

reset

public void reset()

resets the data to be sent to the browser

Specified by:

reset in interface HttpResponse

reset

public void reset(int code,
                  java.lang.String responseString)

resets the data to be sent to the browser with the response code and response string

Specified by:

reset in interface HttpResponse

Parameters:

code - the code to be sent to the browser

responseString - the response string to be sent to the browser

writeMessage

protected void writeMessage(java.io.OutputStream output)
                     throws java.io.IOException

Takes care of sending the response line, headers and body HTTP/1.1 200 OK Server: Netscape-Enterprise/3.6 SP3 Date: Thu, 07 Jun 2001 17:30:42 GMT Content-Type: text/html Connection: close

Parameters:

output - the output to send the response to

Throws:

java.io.IOException - if an exception is thrown

toString

public java.lang.String toString()

Creates a string version of the response similar to: HTTP/1.1 200 OK

Overrides:

toString in class java.lang.Object

Returns:

the string value of this HttpResponseImpl

getServerName

public java.lang.String getServerName()

gets the name of the server being used

Specified by:

getServerName in interface HttpResponse

Returns:

the name of the server

createError

protected static HttpResponseImpl createError(java.lang.String message)

This could be improved at some day in the future to also include a stack trace of the exceptions

Parameters:

message - the error message to be sent

Returns:

the HttpResponseImpl that this error belongs to

createError

protected static HttpResponseImpl createError(java.lang.String message,
                                              java.lang.Throwable t)

creates an error with user defined variables

Parameters:

message - the message of the error

t - a Throwable to print a stack trace to

Returns:

the HttpResponseImpl that this error belongs to

createForbidden

protected static HttpResponseImpl createForbidden(java.lang.String ip)

Creates a forbidden response to be sent to the browser using IP authentication

Parameters:

ip - the ip that is forbidden

Returns:

the HttpResponseImpl that this error belongs to

setContent

public void setContent(java.net.URLConnection content)

Parameters:

content - The content to set.