javax.portlet.filter

Class ActionResponseWrapper

java.lang.Object

javax.portlet.filter.PortletResponseWrapper

javax.portlet.filter.StateAwareResponseWrapper

javax.portlet.filter.ActionResponseWrapper

All Implemented Interfaces:

ActionResponse, Mutable, MutableRenderState, PortletResponse, RenderState, StateAwareResponse

public class ActionResponseWrapper
extends StateAwareResponseWrapper
implements ActionResponse

The ActionResponseWrapper provides a convenient implementation of the ActionResponse interface that can be subclassed by developers. This class implements the Wrapper or Decorator pattern. Methods default to calling through to the wrapped response object.

Since:

2.0

See Also:

ActionResponse

Constructor Summary

Constructors

Constructor and Description
ActionResponseWrapper(ActionResponse response) Creates an ActionResponse adaptor wrapping the given response object.

Method Summary

Modifier and Type	Method and Description
RenderURL	createRedirectURL(MimeResponse.Copy option) Returns a render URL containing render parameters according to the MimeResponse.Copy argument.
ActionResponse	getResponse() Return the wrapped response object.
void	sendRedirect(String location) Instructs the portlet container to send a redirect response to the client using the specified redirect location URL.
void	sendRedirect(String location, String renderUrlParamName) Instructs the portlet container to send a redirect response to the client using the specified redirect location URL and encode a render URL as parameter on the redirect URL.
void	setResponse(ActionResponse response) Sets the response object being wrapped.

Methods inherited from class javax.portlet.filter.StateAwareResponseWrapper

getPortletMode, getRenderParameterMap, getRenderParameters, getWindowState, removePublicRenderParameter, setEvent, setEvent, setPortletMode, setRenderParameter, setRenderParameter, setRenderParameters, setResponse, setWindowState

Methods inherited from class javax.portlet.filter.PortletResponseWrapper

addProperty, addProperty, addProperty, createElement, encodeURL, getNamespace, getProperty, getPropertyNames, getPropertyValues, setProperty, setResponse

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.portlet.StateAwareResponse

getRenderParameterMap, removePublicRenderParameter, setEvent, setEvent, setRenderParameter, setRenderParameter, setRenderParameters

Methods inherited from interface javax.portlet.PortletResponse

addProperty, addProperty, addProperty, createElement, encodeURL, getNamespace, getProperty, getPropertyNames, getPropertyValues, setProperty

Methods inherited from interface javax.portlet.MutableRenderState

getRenderParameters, setPortletMode, setWindowState

Methods inherited from interface javax.portlet.RenderState

getPortletMode, getWindowState

Constructor Detail

ActionResponseWrapper

public ActionResponseWrapper(ActionResponse response)

Creates an ActionResponse adaptor wrapping the given response object.

Parameters:

response - the action response to wrap

Throws:

IllegalArgumentException - if the response is null

Method Detail

getResponse

public ActionResponse getResponse()

Return the wrapped response object.

Overrides:

getResponse in class StateAwareResponseWrapper

Returns:

the wrapped response

setResponse

public void setResponse(ActionResponse response)

Sets the response object being wrapped.

Parameters:

response - the response to set

Throws:

IllegalArgumentException - if the response is null.

sendRedirect

public void sendRedirect(String location)
                  throws IOException

Description copied from interface: ActionResponse

Instructs the portlet container to send a redirect response to the client using the specified redirect location URL.

This method only accepts an absolute URL (e.g. http://my.co/myportal/mywebap/myfolder/myresource.gif) or a full path URI (e.g. /myportal/mywebap/myfolder/myresource.gif). If required, the portlet container may encode the given URL before the redirection is issued to the client.

The sendRedirect method cannot be invoked after any of the following methods of the ActionResponse interface has been called:

• setPortletMode
• setWindowState
• setRenderParameter
• setRenderParameters
• removePublicRenderParamter
• getRenderParameters

Specified by:

sendRedirect in interface ActionResponse

Parameters:

location - the redirect location URL

Throws:

IOException - if an input or output exception occurs.

sendRedirect

public void sendRedirect(String location,
                         String renderUrlParamName)
                  throws IOException

Description copied from interface: ActionResponse

Instructs the portlet container to send a redirect response to the client using the specified redirect location URL and encode a render URL as parameter on the redirect URL.

This method only accepts an absolute URL (e.g. http://my.co/myportal/mywebap/myfolder/myresource.gif) or a full path URI (e.g. /myportal/mywebap/myfolder/myresource.gif). If required, the portlet container may encode the given URL before the redirection is issued to the client.

The portlet container will attach a render URL with the currently set portlet mode, window state and render parameters on the ActionResponse and the current public render parameters. The attached URL will be available as query parameter value under the key provided with the renderUrlParamName parameter.

New values for

• setPortletMode
• setWindowState
• setRenderParameter
• setRenderParameters
• getRenderParameters

are only used for creating the render URL and not remembered after the redirect is issued.

Specified by:

sendRedirect in interface ActionResponse

Parameters:

location - the redirect location URL

renderUrlParamName - name of the query parameter under which the portlet container should store a render URL to this portlet

Throws:

IOException - if an input or output exception occurs.

createRedirectURL

public RenderURL createRedirectURL(MimeResponse.Copy option)
                            throws IllegalStateException

Description copied from interface: ActionResponse

Returns a render URL containing render parameters according to the MimeResponse.Copy argument. The portlet may modify the returned render URL. The URL is intended to be used in the sendRedirect(String location) method to allow the portlet to force a redirect to the same page with modified render state. * Creates a render URL targeting the current portlet.

The createRedirectURL method cannot be invoked after any of the following methods of the ActionResponse interface has been called:

• setPortletMode
• setWindowState
• setRenderParameter
• setRenderParameters
• removePublicRenderParameter
• getRenderParameters

The new render URL will contain render parameters from the current request as specified by the option parameter.

NONE

All public and private parameters are removed from the URL.

ALL

The public and private parameters governing the current request are added to the URL.

PUBLIC

Only public parameters governing the current request are added to the URL.

The URL can be further extended by adding render parameters, portlet mode, and window state. If no additional portlet mode, window state or security modifier is set on the URL, the values from the current render or resource request are preserved.

If a public render parameter value is set or removed on a render URL, then the public render parameter will be set to the new value or removed when the URL is activated.

Specified by:

createRedirectURL in interface ActionResponse

Parameters:

option - Specifies how current parameters are to be copied to the URL

Returns:

a portlet render URL

Throws:

IllegalStateException - if the method is invoked after any of above mentioned methods of the ActionResponse interface has been called.

See Also:

MimeResponse.Copy