Re: NestedHTMLWriter.class question, tuff one [auf Viren geprueft]

[Jonathan O'Connor <Jo...@xcom.de>]

James,
You could try a horrible hack using reflection to get access to the 
private field. That will let you bypass the Java protection mechanisms.
I don't remember how to do this, but it was easy enough when I did it 
about a year ago.
Ciao,
Jonathan O'Connor
XCOM Dublin



"James Sherwood" <js...@romulin.com> 
26/10/2004 14:23
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"Tapestry users" <ta...@jakarta.apache.org>


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Subject
NestedHTMLWriter.class question, tuff one [auf Viren geprueft]






Hello,

Inside of the Body.class there is a function called:

protected void renderComponent(IMarkupWriter writer, IRequestCycle cycle)

Inside this function there is:

IMarkupWriter nested = writer.getNestedWriter();

nested is actually an object of class NestedHTMLWriter(found by stepping
through the code)
(below is the actuall class)
Inside NestedHTMLWriter class is a variable called _internalBuffer.

This is my problem:

I need to see the _internalBuffer but it is private with no getter and
setter.
I tried modifying the actuall class with a setter and getter and readded 
it
to the library then used:

String info = new
String(((NestedHTMLWriter)nested).get_internalBuffer().toCharArray());

This throws a class cast exception!!!

NestedHTMLWriter extends HTMLWRiter which extends AbstractMarkupWriter 
which
implements IMarkupWriter

so should I not be able to cast too it anyway(even tho the actuall class
returned IS a NestedHTMLWriter.)

I REALLY need to read that variable, someone please help!!

I need to see the HTML of the body at that point and its in that variable.


Thanks in advance,
James



public class NestedHTMLWriter extends HTMLWriter
{
 private IMarkupWriter _parent;
 private CharArrayWriter _internalBuffer;

 public NestedHTMLWriter(IMarkupWriter parent)
 {
  super(parent.getContentType());

  _parent = parent;

  _internalBuffer = new CharArrayWriter();

  setWriter(new PrintWriter(_internalBuffer));
 }

 /**
 *  Invokes the {@link HTMLWriter#close() super-class
 *  implementation}, then gets the data accumulated in the
 *  internal buffer and provides it to the containing writer using
 *  {@link IMarkupWriter#printRaw(char[], int, int)}.
 *
 */

 public void close()
 {
  super.close();

  char[] data = _internalBuffer.toCharArray();

  _parent.printRaw(data, 0, data.length);

  _internalBuffer = null;
  _parent = null;
 }
}




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