Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
My FTP client (apache commons ftpclient) needs to download file from FTP.
The problem is that an external service may not have finished writing to this file before I start downloading.
Is there any way to determine via FTP whether the file is already closed (i.e. there is no writing handlers opened)?
The problem is that I cannot synchronize with that external service. But I mustn’t download file which is not finished yet (a large JPEG).
Thanks in advance!
You cannot check if the file is closed via vanilla FTP protocol – there’s just nothing of the sort in it.
If you can, you could instruct the external service to generate files in some sort of a temp directory and then move it over into the FTP directory. As long as both the temporary and FTP dir are on the same partition (on Linux, no idea about Windows) the move should be instantaneous.