How to move files from one folder to another folder in webdynpro java for sap portal

Question

Dear Experts,
I wan to move files from one folder to another folder in SAP portal 7.3 programmatically in webdynpro java.
My requirement is in my portal 1000 transport packages is their. Now i want to move 1 to 200 TP's into Archive folder.
Can you please help me how to do in through portal or wd java ...
Regards
Chakri

Answer 1

Hello,
Do you know what the difference between copying a file this way :
** Fast & simple file copy. */
public static void copy(File source, File dest) throws IOException {
FileChannel in = null, out = null;
try {         
in = new FileInputStream(source).getChannel();
out = new FileOutputStream(dest).getChannel();
long size = in.size();
MappedByteBuffer buf = in.map(FileChannel.MapMode.READ_ONLY, 0, size);
out.write(buf);
} finally {
if (in != null) in.close();
if (out != null) out.close();
================SECOND WAY============
AND THIS WAY:
// Move file (src) to File/directory dest.
public static synchronized void move(File src, File dest) throws FileNotFoundException, IOException {
copy(src, dest);
src.delete();
// Copy file (src) to File/directory dest.
public static synchronized void copy(File src, File dest) throws IOException {
InputStream in = new FileInputStream(src);
OutputStream out = new FileOutputStream(dest);
// Transfer bytes from in to out
byte[] buf = new byte[1024];
int len;
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
in.close();
out.close();
And which is better? I read up on what each kind of does but still a bit unclear as to when it is good to use which.
Thanks in advance,
JavaGirl