The main problem with performance comes from your source code. You are reading 1 byte at a time then writing 1 byte at a time. Use a buffered input stream, and also use a buffered output stream. Then read and write a good number of bytes. Maybe use a static section so you can change the number of bytes for the buffers with a properties file.
Wade -----Original Message----- From: Carlos Pereira [mailto:[EMAIL PROTECTED] Sent: Tuesday, October 21, 2003 3:10 PM To: Tomcat Users List Subject: File writing performance I want to make a servlet which catches all accesses to *.swf files (with a mapping) and only retrieves them if the permissions for the user allow it. That can be done simply with: <code> // check user permissions and redirect to error page if needed // else: response.setContentType("application/x-shockwave-flash"); DataInputStream dis = new DataInputStream( getServletContext().getResourceAsStream(filename) ); OutputStream out = response.getOutputStream(); int b = -1; while((b = dis.read()) != -1) { out.write(b); } out.close(); </code> My question: is this approach more expensive than simply retrieving the file? If so, is it significative? Best regards, Carlos Pereira --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
