All,
Actually it does work, my mistake : - )
matt
---------------------- Forwarded by Matthew Taylor/UK/INTEGRIS_EU on
21/11/2001 13:54 ---------------------------
Matthew Taylor
21/11/2001 13:50
Integris (Hemel Hempstead)
Telephone: 01442 884011
To: "Log4J Users List" <[EMAIL PROTECTED]>
cc:
Subject: Re: WriterAppender problem (Document link: Matthew Taylor)
Kevin,
I know this my be a unsuitable place to continue this discussion.....
I have changed the code like you suggested, and still the String pulled
from the stream is null!
The bytestream setup class now looks like:
..
..
public ByteStreamSetup() {
byteOut = new ByteArrayOutputStream();
myOutput = new BufferedWriter( new OutputStreamWriter(byteOut) );
}
public ByteArrayInputStream getInStream() {
byteIn = new ByteArrayInputStream(byteOut.toByteArray());
return byteIn;
}
the sendjmsmessage mehtod now does this
protected boolean sendJmsMessage() {
ByteArrayInputStream byteIn = setup.getInStream();
BufferedReader myInput = new BufferedReader ( new InputStreamReader(byteIn) );
try {System.out.println(myInput.readLine());} // !!!!!!!!!!!!!!!!!!still prints
null here!!!!!!!!!!!!!!!!!
catch (Exception e){}
..
..
..
The other code is still the same!
Regards
matt
ps do u live/work in the UK then??
Kevin Steppe <[EMAIL PROTECTED]> on 15/11/2001 21:38:29
Please respond to "Log4J Users List" <[EMAIL PROTECTED]>
To: Log4J Users List <[EMAIL PROTECTED]>
cc:
Subject: Re: WriterAppender problem
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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