Storage Manager

== Role ==

Operations

The StorageManger library implements many operation on remote file, the methods LFile and RFile refer to, respectively, Local File (if needed) and Remote File. In the call's signature, there are preceded from a method that identify a operation:

put(boolean replace)

put a local file in a remote directory. If replace is true then the remote file, if exist, will be replaced, false otherwise.

Example: put(true).LFile(“localPath”).RFile(“remotePath”)

get()

downloads a file from a remote path to a local directory

Example: get().LFile(“localPath”).RFile(“remotePath”);

remove()

removes a remote file

Example: remove().RFile(“remotePath”);

removeDir()

removes a remote directory

Example removeDir().LFile(“remoteDirPath”);

showDir()

shows the content of a directory

Example showDir.RFile(“remoteDirPAth”);

lock()

locks a remote file to prevent multiple access

Example lock().RFile(“remotePath”);

unlock(String lockKey)

unlocks a remote file

Example unlock(“key”).RFile(“remotePath”);

getTTL()

return the TimeToLive associated to a remote file if the file is currently locked

Example getTTL().RFile("remote/path/to/dir");

setTTL(int milliseconds)

set the TimeToLive to a remote file that is currently locked. This operation is consented max 5 times for any file.

Example setTTL(180000).RFile("remote/path/to/dir");

Sample Usage

The following code explains how to upload a new file in the storage repository:

The following code explains how to download a file from the storage repository:

The following code explains how to show the contents of a remote directoory on the storage repository:

The following code explains how to lock a file on the storage repository:

The following code explains how to unlock a file on the storage repository: