Spring Integration SFTP fileExistsMode for mv operation

Question

Why is not possible use FileExistsMode in case of mv operation? Is FAIL default value for mv operation?

AbstractRemoteFileOutboundGateway.Command.MV

.fileExistsMode(FileExistsMode.REPLACE)

Why not in MV case? Maybe pull request in next ver?

Answer 1

The logic there in the SftpSession is like this:

public void rename(String pathFrom, String pathTo) throws IOException {
    if (this.sftpClient.getVersion() >= SftpConstants.SFTP_V5) {
        this.sftpClient.rename(pathFrom, pathTo, SftpClient.CopyMode.Overwrite);
    }
    else {
        remove(pathTo);
        this.sftpClient.rename(pathFrom, pathTo);
    }
}

So, it is always override existing file.

You may consider to use SftpFileTemplate.exists() before sending an MV command.

We indeed may consider to improve AbstractRemoteFileOutboundGateway.mv() logic to use provided FileExistsMode. Feel free to raise a GH issue and contribute such a feature.

Answer 2

Good to know, it depends on version. On screenshot: spring-integration-sftp:6.1.3 sshd-sftp:2.9.2

I updated app to uses spring-integration-sftp:6.2.0 sshd-sftp:2.11.0 and works well.

rename method implementation in 6.2.0