File lookup

Question

Hi Experts
I am trying to implement a simple file lookup, can any one tell me which package i need to import while writing the UDF.I am getting an error message ("cannot resolve symbol URL class and URL connection class")
which package is to  be imported  so that URL class and URL connection etc will work.
Actually URL is the location where the file which i am using for lookup is placed .I need to open a connection to that and do the lookup.
The information stored in the file which i am using is not having "=" instead it has a ":" in between the source and the value
like in this case it will look like :FFFF:66666 in my file not FFFF=66666(tried out same scenario suggested by farooq in his wiki)
Can we do the lookup if the file is in this format ?
Your inputs will help me allot
Regards
Sri

Answer 1

Hi Sri
You can do like this
URL url = new URL("ftp://user:password @ somewhere.com/pub/somefile.xxx");
URL belong to java.lang.object
with this you can use FTP API from Jscape to do FTP from UDF
import com.jscape.inet.ftp.*;
Ftp ftp = new Ftp("ftp.myserver.com","user","password");
// establish connection
ftp.connect();
// perform directory listing
String listing = ftp.getDirListingAsString();
// print directory listing to console
System.out.println(listing);
// Perform directory listing
Enumeration files = ftp.getDirListing();
// iterate through listing
while(files.hasMoreElements()) {
FtpFile file = (FtpFile)files.nextElement();
// only print files that are directories;
if(file.isDirectory()) {
System.out.println(file.getName());
// change local directory
ftp.setLocalDir(new File("C:/tmp");
// Change remote directory
ftp.setDir("temp");
// upload a file named test.txt in c:/tmp directory
ftp.upload(new File("c:/tmp/test.txt"));
// download a file named test.txt in remote directory
ftp.download("test.txt");
// release the FTP server connection
ftp.disconnect();
These can help for lot of FTP related developments
Thanks
Gaurav