Hi,
Thank you a lot.
How can we initialise StringBuffer logBuffer?
> -----Original Message-----
> From: Evan Ireland [mailto:[EMAIL PROTECTED]]
> Sent: m/28/00 05:44 PM
> To: [EMAIL PROTECTED]
> Subject: Re: How to read a file changes?
>
>
> I don't want to give away all my source code, but the
> following fragment
> may be helpful!
>
> private long check(RandomAccessFile log, StringBuffer
> logBuffer, long oldLength) throws Exception
> {
> long newLength = log.length();
> if (newLength < oldLength)
> {
> // Log was truncated, start at beginning
> oldLength = 0;
> }
> long offset = oldLength;
> byte[] bytes = new byte[80];
> while (offset < newLength)
> {
> log.seek(offset);
> int n = log.read(bytes);
> if (n == -1)
> {
> return newLength; // Perhaps file was truncated.
> }
> for (int i = 0; i < n; i++)
> {
> char c = (char)bytes[i];
> if (c == '\n')
> {
> check(logBuffer.toString().trim());
> logBuffer.setLength(0);
> }
> else
> {
> logBuffer.append(c);
> }
> }
> offset += n;
> }
> return newLength;
> }
>
> Eugene Voznesensky wrote:
> >
> > Hi
> >
> > Thank you.
> >
> > Do you have any idea how to read an added part of the file?
> >
> > E.
> >
> > > -----Original Message-----
> > > From: Jeff Martin [mailto:[EMAIL PROTECTED]]
> > > Sent: m/28/00 03:07 PM
> > > To: [EMAIL PROTECTED]
> > > Subject: Re: How to read a file changes?
> > >
> > >
> > > Eugene Voznesensky wrote:
> > > > I have implement the next in my Java program:
> > > >
> > > > To be notified when log file changed and read
> > > > added part for further processing.
> > >
> > > A quick way would be to use File.length() to keep checking if
> > > the file has
> > > grown some.
> > >
> > > Jeff
> > >
> > > ==============================================================
> > > =============
> > > To unsubscribe, send email to [EMAIL PROTECTED] and
> > > include in the body
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> > > send email to
> > > [EMAIL PROTECTED] and include in the body of the
> message "help".
> > >
> >
> >
> ==============================================================
> =============
> > To unsubscribe, send email to [EMAIL PROTECTED] and
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>
> --
> ______________________________________________________________
> __________________
>
> Evan Ireland Sybase EAServer Engineering
> [EMAIL PROTECTED]
> Wellington, New Zealand
> +64 4 934-5856
>
> ==============================================================
> =============
> To unsubscribe, send email to [EMAIL PROTECTED] and
> include in the body
> of the message "signoff EJB-INTEREST". For general help,
> send email to
> [EMAIL PROTECTED] and include in the body of the message "help".
>
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