How to write a function in JSP

Question

I have a few lines of code I would like to store in an external file and then call it from a web page.
Here is the code
     String isCE = "No";
     String ismobile = "No";
     String accept = request.getHeader("accept");
     String user_agent = request.getHeader("user-agent");
     String accept_charset = request.getHeader("accept-charset");
     String accept_language = request.getHeader("accept-language");
     String profile = request.getHeader("profile");
     String x_wap_profile = request.getHeader("x-wap-profile");
     if (user_agent.contains("CE")) {
          isCE = "Yes";
     if (x_wap_profile == null && isCE == "No") {
          response.setStatus(301);
          response.sendRedirect("someurl.com");
          response.setHeader( "Connection", "close" );
Now I would like to include this code and then call it with a single function and then pass the url like:
snif("www.someurl.com");
Please help

Answer 1

Thai,
You can use the "channel" functions for this. I'm far from an expert on channel programming but I've read files line-by-line successfully by going one character at a time, looking for a carriage return.
You can open up the file channel with something like:
  ChannelT chan;
  FilePathT *path;
  UCharT ptr[1];
  IntT numRead;
  path = F_PathNameToFilePath("C:\\temp\\mydoc.txt", NULL, FDefaultPath);
  if((chan = F_ChannelOpen(path,"r")) == NULL)
      return;
  //read the first character
  numRead = F_ChannelRead(ptr, sizeof(UCharT), 1, chan);
...then you can call F_ChannelRead iteratively to build the string in a buffer, looking for a carriage return (ASCII 13) and stopping there. (that is, ptr[0] == 13).
There might be a better way. This is just the way I've gotten it to work. It probably is not a good method for unicode files.
Russ