java - getTotalSpace() with UNC -


i'm trying use file.gettotalspace() , file.getfreespace() on nas share via unc, windows host.

due various links in nas, free/total space different based on specific directory requested.

for example, in dos box:

dir \\nas\level1

might return 12,234,567 bytes free, but:

dir \\nas\level1\level2\level3

returns 987,654,321 bytes free.

i try:

new file("\\\\nas\\level1\\level2\\level3").getfreespace();

but returns 12,234,567. appears getfreespace() , gettotalspace() retrieving reported space root of path (\\nas, in case), rather level requested.

if map unc path drive letter, e.g.:

net use s: \\nas\level1\level2\level3

then

new file("s:").getfreespace();

will return correct value. have iterate through bunch of unc paths, mapping them not feasible.

so how can free/total space of unc-based share specific directory level i'm requesting?

i assume expected space used/space free values windows explorer.

if so, should able these same values programmatically wmi.

suggestions:

  1. use java::wmi library or wrapper jwmi.

  2. write simple vbscript or powershell script, call script java.

here's simple powershell (.ps1) example, above link:

$disk = get-wmiobject win32_logicaldisk -computername remotecomputer -filter "deviceid='c:'" | foreach-object {$_.size,$_.freespace}

here's example:

https://superuser.com/questions/911534/determine-the-size-of-a-network-folder

$startfolder = "\\pmintl.net\rbsdata\spa_bb01"  $colitems = (get-childitem $startfolder | measure-object -property length -sum) "$startfolder -- " + "{0:n2}" -f ($colitems.sum / 1mb) + " mb"  $colitems = (get-childitem $startfolder -recurse | where-object {$_.psiscontainer -eq $true} | sort-object) foreach ($i in $colitems)     {         $subfolderitems = (get-childitem $i.fullname | measure-object -property length -sum)         $i.fullname + " -- " + "{0:n2}" -f ($subfolderitems.sum / 1mb) + " mb"     }

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