java - Unzip file on SFTP Server

Question

I have connected to my remote server via FTP and i put some zip file using following code.

channelSftp.cd(SFTPWORKINGDIR + "/" + remoteDestinationDir);
File file = new File(localSourceToFile);
LOG.info("Transferring file: " + localSourceToFile + " to "+ SFTPWORKINGDIR + "/" + remoteDestinationDir);
FileInputStream fis = new FileInputStream(file);
channelSftp.put(fis, file.getName());
fis.close();
LOG.info("Transfer successful");

Now, I want to unzip file on server

Answer 1

It seems that ChannelSftp doesn't support executing commands on the server side. It mainly deals with the transfer of files. You can use ChannelExec https://epaul.github.io/jsch-documentation/simple.javadoc/com/jcraft/jsch/ChannelExec.html to execute unzip /path/to/uploaded/file.zip.

Alternatively, you could have a job running on the server side which watches the directory you upload files to and upzip any uploaded zip-files automatically.