Package org.apache.turbine.pipeline
Class DetermineRedirectRequestedValve
- java.lang.Object
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- org.apache.turbine.pipeline.DetermineRedirectRequestedValve
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- All Implemented Interfaces:
Valve
public class DetermineRedirectRequestedValve extends Object implements Valve
Implements the Redirect Requested portion of the "Turbine classic" processing pipeline (from the Turbine 2.x series).- Version:
- $Id$
- Author:
- Eric Pugh, Peter Courcoux
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Constructor Summary
Constructors Constructor Description DetermineRedirectRequestedValve()
Creates a new instance.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
invoke(PipelineData pipelineData, ValveContext context)
Perform request processing as required by this Valve.protected void
redirectRequested(PipelineData pipelineData)
Perform clean up after processing the request.-
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 org.apache.turbine.pipeline.Valve
initialize
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Constructor Detail
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DetermineRedirectRequestedValve
public DetermineRedirectRequestedValve()
Creates a new instance.
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Method Detail
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invoke
public void invoke(PipelineData pipelineData, ValveContext context) throws IOException, TurbineException
Description copied from interface:Valve
Perform request processing as required by this Valve.
An individual Valve MAY perform the following actions, in the specified order:
- Examine and/or modify the properties of the specified Request and Response.
- Examine the properties of the specified Request, completely generate the corresponding Response, and return control to the caller.
- Examine the properties of the specified Request and Response, wrap either or both of these objects to supplement their functionality, and pass them on.
- If the corresponding Response was not generated (and control was not
returned, call the next Valve in the pipeline (if there is one) by
executing
context.invokeNext()
. - Examine, but not modify, the properties of the resulting Response
(which was created by a subsequently invoked Valve via a
call to
context.invokeNext()
).
A Valve MUST NOT do any of the following things:
- Change request properties that have already been used to direct the flow of processing control for this request.
- Create a completed Response AND pass this Request and Response on to the next Valve in the pipeline.
- Consume bytes from the input stream associated with the Request, unless it is completely generating the response, or wrapping the request before passing it on.
- Modify the HTTP headers included with the Response after the
invokeNext()
method has returned. - Perform any actions on the output stream associated with the
specified Response after the
invokeNext()
method has returned.
- Specified by:
invoke
in interfaceValve
- Parameters:
pipelineData
- The run-time information, including the servlet request and response we are processing.context
- The valve context used to invoke the next valve in the current processing pipeline- Throws:
IOException
- Thrown by a subsequent Valve.TurbineException
- Thrown by a subsequent Valve.- See Also:
Valve.invoke(PipelineData, ValveContext)
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redirectRequested
protected void redirectRequested(PipelineData pipelineData) throws IOException
Perform clean up after processing the request.- Parameters:
pipelineData
- The run-time data.- Throws:
IOException
- if sending the redirect fails
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