'Makes REST API call and retrieves vpool details based on UUID.
This function will take uri as input and returns with
all parameters of VPOOL like label, urn and type.
:param vpooltype : Type of virtual pool {\'block\'}
:param uri : unique resource identifier of the vpool
:returns: object containing all the details of vpool'

def vpool_show_uri(self, vpooltype, uri):

    (s, h) = common.service_json_request(self.ipaddr, self.port, 'GET', self.URI_VPOOL_SHOW.format(vpooltype, uri), None)
    o = common.json_decode(s)
    if o['inactive']:
        return None
    return o
