obtaining InputStream/Reader from OutputStream/Writer to read the content

[Tanveer Rameez]

Hi
I want to get the input stream/reader from an outputstream/writer.
I am using XSLT transformer to generate HTML from XML using a XSLT.
hereis the code:

Source xmlSource = new StreamSource("input.xml");
Source xsltSource = new StreamSource("template.xsl");
TransformerFactory transFact =  TransformerFactory.newInstance();
Templates cachedXSLT = transFact.newTemplates(xsltSource);
Transformer trans = cachedXSLT.newTransformer();
 
//1. writes to the screen 
 trans.transform(xmlSource, new StreamResult(System.out));
 
// 2. writes to the output file
 trans.transform(xmlSource, new StreamResult(new File("output.htm")));
 
//3. I want the output in a String, which mean first I should obtain an inputstream/ reader

How do I get th oputput of the transform method in a String? I am passing a StreamResult object which wraps a OutputStream. The StreamResult object also can wrap a Writer. Now how do I obtain the content of the OutputStream or Writer? I think i will need to use a InputStream or a Reader from which i can obtain the data as String by using read(..) method. Am i right? If that is so, how do I obtain the InputStream or a Reader from the OutputStream or Writer?
many thanks in advance
Tanveer
[ June 30, 2005: Message edited by: Tanveer Rameez ]

[Detlev Beutner]

Hi Tanveer,

you can use a ByteArrayOutputStream as the wrapped OutputStream, and afterwards, call toString on the baos.

Hope it helps
Detlev
[ June 29, 2005: Message edited by: Detlev Beutner ]

[Tanveer Rameez]

hi
Thanks for the reply. Yes, that is a good away. I found another way of doing it too:

StringWriter sw=new StringWriter();
StreamResult out = new StreamResult(sw);
trans.transform(xmlSource, out);
String result = ((StringWriter)out.getWriter()).getBuffer().toString();

The StringWriter is a Writer and getbuffer gives the data written to that writer.

cheers
Tanveer