Matthew,
The problem in in your ByteStreamSetup class. You wrap
byteIn around byteOut during construction of the object.
This causes
byteIn to wrap the btye array held by byteOut at
*construction* time -- when the array is null of course. I
moved the byteIn
construction (byteIn = new
ByteArrayInputStream(byteOut.toByteArray());) to
getInStream() and it works fine. You might consider
using PipedWriter/Reader pair rather than all that byte
array confusion if you really are passing strings around.
Kevin
ps. if you are hiring, I'm looking for work
[EMAIL PROTECTED] wrote:
>
> Can anyone find the problem here?
>
> I have a writer appender that writes to a bytearrayoutputstream.
> I have a bytearrayinputstream wrapped in a bufferedreader that reads the
> logged message from the stream once it has been logged.
> However, my stream is empty, or at least the string conversion returns
> null.
>
> My code is :
>
> BufferedWriter outputStream = setup.getOutStream();
>
> cat = (AuditCategory) AuditCategory.getInstance(classFQN);
>
> PatternLayout logLayout = new PatternLayout();
>
> ConsoleAppender consoleApp = new ConsoleAppender(logLayout);
> WriterAppender writerApp = new WriterAppender(logLayout, outputStream);
>
> consoleApp.setThreshold(AuditLogPriority.DEBUG)
> writerApp.setThreshold(AuditLogPriority.AUDIT);
>
> cat.addAppender(consoleApp);
> cat.addAppender(writerApp);
>
> To setup the category with the correct appenders.
>
> Then:
>
> public void audit(java.lang.Object message) {
> System.out.println("message in audit method = " + message.toString());
> cat.audit(message);
> sendJmsMessage();
> }
>
> private void sendJmsMessage() {
>
> ByteArrayInputStream byteIn = setup.getInStream();
>
> BufferedReader myInput = new BufferedReader ( new InputStreamReader(byteIn) );
>
> try {System.out.println(myInput.readLine());} // !!!!!!!!This returns null
>here!!!!!!!!!
> catch (Exception e){}
>
> String message = new String();
>
> try {
> // read the now characters and convert to string
> message = myInput.readLine();
> }
> catch (IOException e) {
> System.out.println ("Exception: " + e);
> }
> System.out.println (":::::::::::::::message == " + message);
>
> JMSProducer sendJms = new JMSProducer(message);
> }
>
> With the arrayoutputstream stuff being done in aseperate class:
>
> public ByteStreamSetup() {
>
> // initialise the output stream
> byteOut = new ByteArrayOutputStream();
> // wrap the OP stream in the writer
> myOutput = new BufferedWriter( new OutputStreamWriter(byteOut) );
>
> // get the buffer contents and read it into our stream reader, wrapped in a
> // buffered reader which converts a stream of bytes to charatcers in one.
> byteIn = new ByteArrayInputStream(byteOut.toByteArray());
>
> //myInput = new BufferedReader ( new InputStreamReader(byteIn) );
> }
>
> public BufferedWriter getOutStream() {
> return myOutput;
> }
>
> public ByteArrayInputStream getInStream() {
> //return myInput;
> return byteIn;
> }
>
> Is this a WriterAppender problem???
> I can't work out where my message is getting lost??
>
> Any ideas??
>
> cheers
> matt
>
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